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2479 lines
79 KiB
2479 lines
79 KiB
/*
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olcPixelGameEngine.h
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+-------------------------------------------------------------+
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| OneLoneCoder Pixel Game Engine v1.22 |
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| "Like the command prompt console one, but not..." - javidx9 |
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+-------------------------------------------------------------+
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What is this?
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~~~~~~~~~~~~~
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The olcConsoleGameEngine has been a surprising and wonderful success for me,
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and I'm delighted how people have reacted so positively towards it, so thanks
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for that.
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However, there are limitations that I simply cannot avoid. Firstly, I need to
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maintain several different versions of it to accommodate users on Windows7,
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8, 10, Linux, Mac, Visual Studio & Code::Blocks. Secondly, this year I've been
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pushing the console to the limits of its graphical capabilities and the effect
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is becoming underwhelming. The engine itself is not slow at all, but the process
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that Windows uses to draw the command prompt to the screen is, and worse still,
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it's dynamic based upon the variation of character colours and glyphs. Sadly
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I have no control over this, and recent videos that are extremely graphical
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(for a command prompt :P ) have been dipping to unacceptable framerates. As
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the channel has been popular with aspiring game developers, I'm concerned that
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the visual appeal of the command prompt is perhaps limited to us oldies, and I
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dont want to alienate younger learners. Finally, I'd like to demonstrate many
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more algorithms and image processing that exist in the graphical domain, for
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which the console is insufficient.
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For this reason, I have created olcPixelGameEngine! The look and feel to the
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programmer is almost identical, so all of my existing code from the videos is
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easily portable, and the programmer uses this file in exactly the same way. But
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I've decided that rather than just build a command prompt emulator, that I
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would at least harness some modern(ish) portable technologies.
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As a result, the olcPixelGameEngine supports 32-bit colour, is written in a
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cross-platform style, uses modern(ish) C++ conventions and most importantly,
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renders much much faster. I will use this version when my applications are
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predominantly graphics based, but use the console version when they are
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predominantly text based - Don't worry, loads more command prompt silliness to
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come yet, but evolution is important!!
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License (OLC-3)
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~~~~~~~~~~~~~~~
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Copyright 2018 - 2019 OneLoneCoder.com
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions or derivations of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions or derivative works in binary form must reproduce the above
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copyright notice. This list of conditions and the following disclaimer must be
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reproduced in the documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors may
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be used to endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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Links
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~~~~~
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YouTube: https://www.youtube.com/javidx9
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https://www.youtube.com/javidx9extra
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Discord: https://discord.gg/WhwHUMV
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Twitter: https://www.twitter.com/javidx9
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Twitch: https://www.twitch.tv/javidx9
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GitHub: https://www.github.com/onelonecoder
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Homepage: https://www.onelonecoder.com
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Patreon: https://www.patreon.com/javidx9
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Relevant Videos
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~~~~~~~~~~~~~~~
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https://youtu.be/kRH6oJLFYxY Introducing olcPixelGameEngine
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Compiling in Linux
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~~~~~~~~~~~~~~~~~~
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You will need a modern C++ compiler, so update yours!
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To compile use the command:
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g++ -o YourProgName YourSource.cpp -lX11 -lGL -lpthread -lpng -lstdc++fs
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On some Linux configurations, the frame rate is locked to the refresh
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rate of the monitor. This engine tries to unlock it but may not be
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able to, in which case try launching your program like this:
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vblank_mode=0 ./YourProgName
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Compiling in Code::Blocks on Windows
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Well I wont judge you, but make sure your Code::Blocks installation
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is really up to date - you may even consider updating your C++ toolchain
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to use MinGW32-W64.
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Guide for installing recent GCC for Windows:
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https://www.msys2.org/
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Guide for configuring code::blocks:
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https://solarianprogrammer.com/2019/11/05/install-gcc-windows/
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https://solarianprogrammer.com/2019/11/16/install-codeblocks-gcc-windows-build-c-cpp-fortran-programs/
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Add these libraries to "Linker Options":
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user32 gdi32 opengl32 gdiplus Shlwapi stdc++fs
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Set these compiler options: -std=c++17
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Ports
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~~~~~
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olc::PixelGameEngine has been ported and tested with varying degrees of
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success to: WinXP, Win7, Win8, Win10, Various Linux, Rapberry Pi,
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Chromebook, Playstation Portable (PSP) and Nintendo Switch. If you are
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interested in the details of these ports, come and visit the Discord!
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Thanks
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~~~~~~
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I'd like to extend thanks to Eremiell, slavka, gurkanctn, Phantim, IProgramInCPP
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JackOJC, KrossX, Huhlig, Dragoneye, Appa, JustinRichardsMusic, SliceNDice
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Ralakus, Gorbit99, raoul, joshinils, benedani & MagetzUb for advice, ideas and
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testing, and I'd like to extend my appreciation to the 107K YouTube followers,
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56 Patreons and 5.2K Discord server members who give me the motivation to keep
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going with all this :D
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Significant Contributors: @MaGetzUb, @slavka, @Dragoneye & @Gorbit99
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Special thanks to those who bring gifts!
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GnarGnarHead.......Domina
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Gorbit99...........Bastion, Ori & The Blind Forest
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Marti Morta........Gris
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Special thanks to my Patreons too - I wont name you on here, but I've
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certainly enjoyed my tea and flapjacks :D
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Author
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~~~~~~
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David Barr, aka javidx9, ©OneLoneCoder 2018, 2019
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*/
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//////////////////////////////////////////////////////////////////////////////////////////
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/* Example Usage (main.cpp)
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#define OLC_PGE_APPLICATION
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#include "olcPixelGameEngine.h"
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// Override base class with your custom functionality
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class Example : public olc::PixelGameEngine
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{
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public:
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Example()
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{
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sAppName = "Example";
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}
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public:
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bool OnUserCreate() override
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{
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// Called once at the start, so create things here
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return true;
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}
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bool OnUserUpdate(float fElapsedTime) override
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{
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// called once per frame, draws random coloured pixels
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for (int x = 0; x < ScreenWidth(); x++)
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for (int y = 0; y < ScreenHeight(); y++)
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Draw(x, y, olc::Pixel(rand() % 255, rand() % 255, rand()% 255));
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return true;
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}
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};
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int main()
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{
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Example demo;
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if (demo.Construct(256, 240, 4, 4))
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demo.Start();
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return 0;
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}
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*/
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#ifndef OLC_PGE_DEF
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#define OLC_PGE_DEF
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#if defined(_WIN32) // WINDOWS specific includes ==============================================
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// Link to libraries
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#ifndef __MINGW32__
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#pragma comment(lib, "user32.lib") // Visual Studio Only
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#pragma comment(lib, "gdi32.lib") // For other Windows Compilers please add
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#pragma comment(lib, "opengl32.lib") // these libs to your linker input
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#pragma comment(lib, "gdiplus.lib")
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#pragma comment(lib, "Shlwapi.lib")
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#else
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// In Code::Blocks
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#if !defined _WIN32_WINNT
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#ifdef HAVE_MSMF
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#define _WIN32_WINNT 0x0600 // Windows Vista
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#else
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#define _WIN32_WINNT 0x0500 // Windows 2000
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#endif
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#endif
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#endif
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// Include WinAPI
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//#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <gdiplus.h>
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#include <Shlwapi.h>
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// OpenGL Extension
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#include <GL/gl.h>
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typedef BOOL(WINAPI wglSwapInterval_t) (int interval);
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static wglSwapInterval_t *wglSwapInterval;
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#endif
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#ifdef __linux__ // LINUX specific includes ==============================================
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#include <GL/gl.h>
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#include <GL/glx.h>
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#include <png.h>
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typedef int(glSwapInterval_t) (Display *dpy, GLXDrawable drawable, int interval);
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static glSwapInterval_t *glSwapIntervalEXT;
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#endif
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// Standard includes
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#include <cmath>
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#include <cstdint>
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#include <string>
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#include <iostream>
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#include <streambuf>
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#include <sstream>
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#include <chrono>
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#include <vector>
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#include <list>
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#include <thread>
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#include <atomic>
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#include <condition_variable>
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#include <fstream>
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#include <map>
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#include <functional>
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#include <algorithm>
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#if defined(_WIN32)
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#if _MSVC_LANG >= 201703L // Thanks @slavka
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// C++17 onwards
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#include <filesystem>
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namespace _gfs = std::filesystem;
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#else
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// Older "Modern" C++ :P
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#include <experimental/filesystem>
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namespace _gfs = std::experimental::filesystem::v1;
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#endif
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#endif
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#if defined(_linux_) || defined(__MINGW32__)
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#if __cplusplus >= 201703L
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// C++17 onwards
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#include <filesystem>
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namespace _gfs = std::filesystem;
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#else
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// Older "Modern" C++ :P
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#include <experimental/filesystem>
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namespace _gfs = std::experimental::filesystem::v1;
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#endif
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#endif
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#undef min
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#undef max
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#define UNUSED(x) (void)(x)
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namespace olc // All OneLoneCoder stuff will now exist in the "olc" namespace
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{
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struct Pixel
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{
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union
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{
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uint32_t n = 0xFF000000;
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struct
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{
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uint8_t r; uint8_t g; uint8_t b; uint8_t a;
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};
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};
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Pixel();
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Pixel(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha = 255);
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Pixel(uint32_t p);
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enum Mode { NORMAL, MASK, ALPHA, CUSTOM };
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bool operator==(const Pixel& p) const;
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bool operator!=(const Pixel& p) const;
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};
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// Some constants for symbolic naming of Pixels
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static const Pixel
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WHITE(255, 255, 255),
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GREY(192, 192, 192), DARK_GREY(128, 128, 128), VERY_DARK_GREY(64, 64, 64),
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RED(255, 0, 0), DARK_RED(128, 0, 0), VERY_DARK_RED(64, 0, 0),
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YELLOW(255, 255, 0), DARK_YELLOW(128, 128, 0), VERY_DARK_YELLOW(64, 64, 0),
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GREEN(0, 255, 0), DARK_GREEN(0, 128, 0), VERY_DARK_GREEN(0, 64, 0),
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CYAN(0, 255, 255), DARK_CYAN(0, 128, 128), VERY_DARK_CYAN(0, 64, 64),
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BLUE(0, 0, 255), DARK_BLUE(0, 0, 128), VERY_DARK_BLUE(0, 0, 64),
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MAGENTA(255, 0, 255), DARK_MAGENTA(128, 0, 128), VERY_DARK_MAGENTA(64, 0, 64),
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BLACK(0, 0, 0),
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BLANK(0, 0, 0, 0);
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enum rcode
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{
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FAIL = 0,
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OK = 1,
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NO_FILE = -1,
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};
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//==================================================================================
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template <class T>
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struct v2d_generic
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{
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T x = 0;
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T y = 0;
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inline v2d_generic() : x(0), y(0) { }
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inline v2d_generic(T _x, T _y) : x(_x), y(_y) { }
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inline v2d_generic(const v2d_generic& v) : x(v.x), y(v.y){ }
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inline T mag() { return sqrt(x * x + y * y); }
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inline T mag2() { return x * x + y * y; }
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inline v2d_generic norm() { T r = 1 / mag(); return v2d_generic(x*r, y*r); }
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inline v2d_generic perp() { return v2d_generic(-y, x); }
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inline T dot(const v2d_generic& rhs) { return this->x * rhs.x + this->y * rhs.y; }
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inline T cross(const v2d_generic& rhs) { return this->x * rhs.y - this->y * rhs.x; }
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inline v2d_generic operator + (const v2d_generic& rhs) const { return v2d_generic(this->x + rhs.x, this->y + rhs.y);}
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inline v2d_generic operator - (const v2d_generic& rhs) const { return v2d_generic(this->x - rhs.x, this->y - rhs.y);}
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inline v2d_generic operator * (const T& rhs) const { return v2d_generic(this->x * rhs, this->y * rhs); }
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inline v2d_generic operator / (const T& rhs) const { return v2d_generic(this->x / rhs, this->y / rhs); }
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inline v2d_generic& operator += (const v2d_generic& rhs) { this->x += rhs.x; this->y += rhs.y; return *this; }
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inline v2d_generic& operator -= (const v2d_generic& rhs) { this->x -= rhs.x; this->y -= rhs.y; return *this; }
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inline v2d_generic& operator *= (const T& rhs) { this->x *= rhs; this->y *= rhs; return *this; }
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inline v2d_generic& operator /= (const T& rhs) { this->x /= rhs; this->y /= rhs; return *this; }
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inline T& operator [] (std::size_t i) { return *((T*)this + i); /* <-- D'oh :( */ }
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inline operator v2d_generic<int>() const { return { static_cast<int32_t>(this->x), static_cast<int32_t>(this->y) }; }
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inline operator v2d_generic<float>() const { return { static_cast<float>(this->x), static_cast<float>(this->y) }; }
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};
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template<class T> inline v2d_generic<T> operator * (const float& lhs, const v2d_generic<T>& rhs) { return v2d_generic<T>(lhs * rhs.x, lhs * rhs.y); }
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template<class T> inline v2d_generic<T> operator * (const double& lhs, const v2d_generic<T>& rhs){ return v2d_generic<T>(lhs * rhs.x, lhs * rhs.y); }
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template<class T> inline v2d_generic<T> operator * (const int& lhs, const v2d_generic<T>& rhs) { return v2d_generic<T>(lhs * rhs.x, lhs * rhs.y); }
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template<class T> inline v2d_generic<T> operator / (const float& lhs, const v2d_generic<T>& rhs) { return v2d_generic<T>(lhs / rhs.x, lhs / rhs.y); }
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template<class T> inline v2d_generic<T> operator / (const double& lhs, const v2d_generic<T>& rhs){ return v2d_generic<T>(lhs / rhs.x, lhs / rhs.y); }
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template<class T> inline v2d_generic<T> operator / (const int& lhs, const v2d_generic<T>& rhs) { return v2d_generic<T>(lhs / rhs.x, lhs / rhs.y); }
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typedef v2d_generic<int32_t> vi2d;
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typedef v2d_generic<float> vf2d;
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typedef v2d_generic<double> vd2d;
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//=============================================================
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struct HWButton
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{
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bool bPressed = false; // Set once during the frame the event occurs
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bool bReleased = false; // Set once during the frame the event occurs
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bool bHeld = false; // Set true for all frames between pressed and released events
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};
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//=============================================================
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struct ResourceBuffer : public std::streambuf
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{
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ResourceBuffer(std::ifstream &ifs, uint32_t offset, uint32_t size);
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std::vector<char> vMemory;
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};
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class ResourcePack : public std::streambuf
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{
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public:
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ResourcePack();
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~ResourcePack();
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bool AddFile(const std::string& sFile);
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bool LoadPack(const std::string& sFile, const std::string& sKey);
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bool SavePack(const std::string& sFile, const std::string& sKey);
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ResourceBuffer GetFileBuffer(const std::string& sFile);
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bool Loaded();
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private:
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struct sResourceFile { uint32_t nSize; uint32_t nOffset; };
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std::map<std::string, sResourceFile> mapFiles;
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std::ifstream baseFile;
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const std::string scramble(const std::string& data, const std::string& key);
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std::string makeposix(const std::string& path);
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};
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|
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//=============================================================
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|
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// A bitmap-like structure that stores a 2D array of Pixels
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class Sprite
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{
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public:
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Sprite();
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Sprite(std::string sImageFile, olc::ResourcePack *pack = nullptr);
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Sprite(int32_t w, int32_t h);
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~Sprite();
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public:
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olc::rcode LoadFromFile(std::string sImageFile, olc::ResourcePack *pack = nullptr);
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olc::rcode LoadFromPGESprFile(std::string sImageFile, olc::ResourcePack *pack = nullptr);
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olc::rcode SaveToPGESprFile(std::string sImageFile);
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|
|
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public:
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|
int32_t width = 0;
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int32_t height = 0;
|
|
enum Mode { NORMAL, PERIODIC };
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|
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public:
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void SetSampleMode(olc::Sprite::Mode mode = olc::Sprite::Mode::NORMAL);
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Pixel GetPixel(int32_t x, int32_t y);
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bool SetPixel(int32_t x, int32_t y, Pixel p);
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Pixel Sample(float x, float y);
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Pixel SampleBL(float u, float v);
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Pixel* GetData();
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private:
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Pixel *pColData = nullptr;
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Mode modeSample = Mode::NORMAL;
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|
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#ifdef OLC_DBG_OVERDRAW
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public:
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static int nOverdrawCount;
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#endif
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|
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};
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|
|
//=============================================================
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enum Key
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{
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NONE,
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A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z,
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K0, K1, K2, K3, K4, K5, K6, K7, K8, K9,
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F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12,
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UP, DOWN, LEFT, RIGHT,
|
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SPACE, TAB, SHIFT, CTRL, INS, DEL, HOME, END, PGUP, PGDN,
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BACK, ESCAPE, RETURN, ENTER, PAUSE, SCROLL,
|
|
NP0, NP1, NP2, NP3, NP4, NP5, NP6, NP7, NP8, NP9,
|
|
NP_MUL, NP_DIV, NP_ADD, NP_SUB, NP_DECIMAL,
|
|
};
|
|
|
|
|
|
//=============================================================
|
|
|
|
class PixelGameEngine
|
|
{
|
|
public:
|
|
PixelGameEngine();
|
|
|
|
public:
|
|
olc::rcode Construct(uint32_t screen_w, uint32_t screen_h, uint32_t pixel_w, uint32_t pixel_h, bool full_screen = false, bool vsync = false);
|
|
olc::rcode Start();
|
|
|
|
public: // Override Interfaces
|
|
// Called once on application startup, use to load your resources
|
|
virtual bool OnUserCreate();
|
|
// Called every frame, and provides you with a time per frame value
|
|
virtual bool OnUserUpdate(float fElapsedTime);
|
|
// Called once on application termination, so you can be a clean coder
|
|
virtual bool OnUserDestroy();
|
|
|
|
public: // Hardware Interfaces
|
|
// Returns true if window is currently in focus
|
|
bool IsFocused();
|
|
// Get the state of a specific keyboard button
|
|
HWButton GetKey(Key k);
|
|
// Get the state of a specific mouse button
|
|
HWButton GetMouse(uint32_t b);
|
|
// Get Mouse X coordinate in "pixel" space
|
|
int32_t GetMouseX();
|
|
// Get Mouse Y coordinate in "pixel" space
|
|
int32_t GetMouseY();
|
|
// Get Mouse Wheel Delta
|
|
int32_t GetMouseWheel();
|
|
|
|
public: // Utility
|
|
// Returns the width of the screen in "pixels"
|
|
int32_t ScreenWidth();
|
|
// Returns the height of the screen in "pixels"
|
|
int32_t ScreenHeight();
|
|
// Returns the width of the currently selected drawing target in "pixels"
|
|
int32_t GetDrawTargetWidth();
|
|
// Returns the height of the currently selected drawing target in "pixels"
|
|
int32_t GetDrawTargetHeight();
|
|
// Returns the currently active draw target
|
|
Sprite* GetDrawTarget();
|
|
|
|
public: // Draw Routines
|
|
// Specify which Sprite should be the target of drawing functions, use nullptr
|
|
// to specify the primary screen
|
|
void SetDrawTarget(Sprite *target);
|
|
// Change the pixel mode for different optimisations
|
|
// olc::Pixel::NORMAL = No transparency
|
|
// olc::Pixel::MASK = Transparent if alpha is < 255
|
|
// olc::Pixel::ALPHA = Full transparency
|
|
void SetPixelMode(Pixel::Mode m);
|
|
Pixel::Mode GetPixelMode();
|
|
// Use a custom blend function
|
|
void SetPixelMode(std::function<olc::Pixel(const int x, const int y, const olc::Pixel& pSource, const olc::Pixel& pDest)> pixelMode);
|
|
// Change the blend factor form between 0.0f to 1.0f;
|
|
void SetPixelBlend(float fBlend);
|
|
// Offset texels by sub-pixel amount (advanced, do not use)
|
|
void SetSubPixelOffset(float ox, float oy);
|
|
|
|
// Draws a single Pixel
|
|
virtual bool Draw(int32_t x, int32_t y, Pixel p = olc::WHITE);
|
|
bool Draw(const olc::vi2d& pos, Pixel p = olc::WHITE);
|
|
// Draws a line from (x1,y1) to (x2,y2)
|
|
void DrawLine(int32_t x1, int32_t y1, int32_t x2, int32_t y2, Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
|
|
void DrawLine(const olc::vi2d& pos1, const olc::vi2d& pos2, Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
|
|
// Draws a circle located at (x,y) with radius
|
|
void DrawCircle(int32_t x, int32_t y, int32_t radius, Pixel p = olc::WHITE, uint8_t mask = 0xFF);
|
|
void DrawCircle(const olc::vi2d& pos, int32_t radius, Pixel p = olc::WHITE, uint8_t mask = 0xFF);
|
|
// Fills a circle located at (x,y) with radius
|
|
void FillCircle(int32_t x, int32_t y, int32_t radius, Pixel p = olc::WHITE);
|
|
void FillCircle(const olc::vi2d& pos, int32_t radius, Pixel p = olc::WHITE);
|
|
// Draws a rectangle at (x,y) to (x+w,y+h)
|
|
void DrawRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p = olc::WHITE);
|
|
void DrawRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p = olc::WHITE);
|
|
// Fills a rectangle at (x,y) to (x+w,y+h)
|
|
void FillRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p = olc::WHITE);
|
|
void FillRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p = olc::WHITE);
|
|
// Draws a triangle between points (x1,y1), (x2,y2) and (x3,y3)
|
|
void DrawTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p = olc::WHITE);
|
|
void DrawTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p = olc::WHITE);
|
|
// Flat fills a triangle between points (x1,y1), (x2,y2) and (x3,y3)
|
|
void FillTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p = olc::WHITE);
|
|
void FillTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p = olc::WHITE);
|
|
// Draws an entire sprite at location (x,y)
|
|
void DrawSprite(int32_t x, int32_t y, Sprite *sprite, uint32_t scale = 1);
|
|
void DrawSprite(const olc::vi2d& pos, Sprite *sprite, uint32_t scale = 1);
|
|
// Draws an area of a sprite at location (x,y), where the
|
|
// selected area is (ox,oy) to (ox+w,oy+h)
|
|
void DrawPartialSprite(int32_t x, int32_t y, Sprite *sprite, int32_t ox, int32_t oy, int32_t w, int32_t h, uint32_t scale = 1);
|
|
void DrawPartialSprite(const olc::vi2d& pos, Sprite *sprite, const olc::vi2d& sourcepos, const olc::vi2d& size, uint32_t scale = 1);
|
|
// Draws a single line of text
|
|
void DrawString(int32_t x, int32_t y, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
|
|
void DrawString(const olc::vi2d& pos, const std::string& sText, Pixel col = olc::WHITE, uint32_t scale = 1);
|
|
// Clears entire draw target to Pixel
|
|
void Clear(Pixel p);
|
|
// Resize the primary screen sprite
|
|
void SetScreenSize(int w, int h);
|
|
|
|
public: // Branding
|
|
std::string sAppName;
|
|
|
|
private: // Inner mysterious workings
|
|
Sprite *pDefaultDrawTarget = nullptr;
|
|
Sprite *pDrawTarget = nullptr;
|
|
Pixel::Mode nPixelMode = Pixel::NORMAL;
|
|
float fBlendFactor = 1.0f;
|
|
uint32_t nScreenWidth = 256;
|
|
uint32_t nScreenHeight = 240;
|
|
uint32_t nPixelWidth = 4;
|
|
uint32_t nPixelHeight = 4;
|
|
int32_t nMousePosX = 0;
|
|
int32_t nMousePosY = 0;
|
|
int32_t nMouseWheelDelta = 0;
|
|
int32_t nMousePosXcache = 0;
|
|
int32_t nMousePosYcache = 0;
|
|
int32_t nMouseWheelDeltaCache = 0;
|
|
int32_t nWindowWidth = 0;
|
|
int32_t nWindowHeight = 0;
|
|
int32_t nViewX = 0;
|
|
int32_t nViewY = 0;
|
|
int32_t nViewW = 0;
|
|
int32_t nViewH = 0;
|
|
bool bFullScreen = false;
|
|
float fPixelX = 1.0f;
|
|
float fPixelY = 1.0f;
|
|
float fSubPixelOffsetX = 0.0f;
|
|
float fSubPixelOffsetY = 0.0f;
|
|
bool bHasInputFocus = false;
|
|
bool bHasMouseFocus = false;
|
|
bool bEnableVSYNC = false;
|
|
float fFrameTimer = 1.0f;
|
|
int nFrameCount = 0;
|
|
Sprite *fontSprite = nullptr;
|
|
std::function<olc::Pixel(const int x, const int y, const olc::Pixel&, const olc::Pixel&)> funcPixelMode;
|
|
|
|
static std::map<size_t, uint8_t> mapKeys;
|
|
bool pKeyNewState[256]{ 0 };
|
|
bool pKeyOldState[256]{ 0 };
|
|
HWButton pKeyboardState[256];
|
|
|
|
bool pMouseNewState[5]{ 0 };
|
|
bool pMouseOldState[5]{ 0 };
|
|
HWButton pMouseState[5];
|
|
|
|
#if defined(_WIN32)
|
|
HDC glDeviceContext = nullptr;
|
|
HGLRC glRenderContext = nullptr;
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
GLXContext glDeviceContext = nullptr;
|
|
GLXContext glRenderContext = nullptr;
|
|
#endif
|
|
GLuint glBuffer;
|
|
|
|
void EngineThread();
|
|
|
|
// If anything sets this flag to false, the engine
|
|
// "should" shut down gracefully
|
|
static std::atomic<bool> bAtomActive;
|
|
|
|
// Common initialisation functions
|
|
void olc_UpdateMouse(int32_t x, int32_t y);
|
|
void olc_UpdateMouseWheel(int32_t delta);
|
|
void olc_UpdateWindowSize(int32_t x, int32_t y);
|
|
void olc_UpdateViewport();
|
|
bool olc_OpenGLCreate();
|
|
void olc_ConstructFontSheet();
|
|
|
|
|
|
#if defined(_WIN32)
|
|
// Windows specific window handling
|
|
HWND olc_hWnd = nullptr;
|
|
HWND olc_WindowCreate();
|
|
std::wstring wsAppName;
|
|
static LRESULT CALLBACK olc_WindowEvent(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
// Non-Windows specific window handling
|
|
Display* olc_Display = nullptr;
|
|
Window olc_WindowRoot;
|
|
Window olc_Window;
|
|
XVisualInfo* olc_VisualInfo;
|
|
Colormap olc_ColourMap;
|
|
XSetWindowAttributes olc_SetWindowAttribs;
|
|
Display* olc_WindowCreate();
|
|
#endif
|
|
|
|
};
|
|
|
|
|
|
class PGEX
|
|
{
|
|
friend class olc::PixelGameEngine;
|
|
protected:
|
|
static PixelGameEngine* pge;
|
|
};
|
|
|
|
//=============================================================
|
|
}
|
|
|
|
#endif // OLC_PGE_DEF
|
|
|
|
|
|
|
|
|
|
/*
|
|
Object Oriented Mode
|
|
~~~~~~~~~~~~~~~~~~~~
|
|
|
|
If the olcPixelGameEngine.h is called from several sources it can cause
|
|
multiple definitions of objects. To prevent this, ONLY ONE of the pathways
|
|
to including this file must have OLC_PGE_APPLICATION defined before it. This prevents
|
|
the definitions being duplicated.
|
|
|
|
If all else fails, create a file called "olcPixelGameEngine.cpp" with the following
|
|
two lines. Then you can just #include "olcPixelGameEngine.h" as normal without worrying
|
|
about defining things. Dont forget to include that cpp file as part of your build!
|
|
|
|
#define OLC_PGE_APPLICATION
|
|
#include "olcPixelGameEngine.h"
|
|
|
|
*/
|
|
|
|
#ifdef OLC_PGE_APPLICATION
|
|
#undef OLC_PGE_APPLICATION
|
|
|
|
namespace olc
|
|
{
|
|
Pixel::Pixel()
|
|
{
|
|
r = 0; g = 0; b = 0; a = 255;
|
|
}
|
|
|
|
Pixel::Pixel(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha)
|
|
{
|
|
r = red; g = green; b = blue; a = alpha;
|
|
}
|
|
|
|
Pixel::Pixel(uint32_t p)
|
|
{
|
|
n = p;
|
|
}
|
|
|
|
bool Pixel::operator==(const Pixel& p) const
|
|
{
|
|
return n == p.n;
|
|
}
|
|
|
|
bool Pixel::operator!=(const Pixel& p) const
|
|
{
|
|
return n != p.n;
|
|
}
|
|
|
|
//==========================================================
|
|
|
|
#if defined(_WIN32)
|
|
std::wstring ConvertS2W(std::string s)
|
|
{
|
|
#ifdef __MINGW32__
|
|
wchar_t *buffer = new wchar_t[s.length() + 1];
|
|
mbstowcs(buffer, s.c_str(), s.length());
|
|
buffer[s.length()] = L'\0';
|
|
#else
|
|
int count = MultiByteToWideChar(CP_UTF8, 0, s.c_str(), -1, NULL, 0);
|
|
wchar_t* buffer = new wchar_t[count];
|
|
MultiByteToWideChar(CP_UTF8, 0, s.c_str(), -1, buffer, count);
|
|
#endif
|
|
std::wstring w(buffer);
|
|
delete[] buffer;
|
|
return w;
|
|
}
|
|
#endif
|
|
|
|
Sprite::Sprite()
|
|
{
|
|
pColData = nullptr;
|
|
width = 0;
|
|
height = 0;
|
|
}
|
|
|
|
Sprite::Sprite(std::string sImageFile, olc::ResourcePack *pack)
|
|
{
|
|
LoadFromFile(sImageFile, pack);
|
|
}
|
|
|
|
Sprite::Sprite(int32_t w, int32_t h)
|
|
{
|
|
if(pColData) delete[] pColData;
|
|
width = w; height = h;
|
|
pColData = new Pixel[width * height];
|
|
for (int32_t i = 0; i < width*height; i++)
|
|
pColData[i] = Pixel();
|
|
}
|
|
|
|
Sprite::~Sprite()
|
|
{
|
|
if (pColData) delete pColData;
|
|
}
|
|
|
|
olc::rcode Sprite::LoadFromPGESprFile(std::string sImageFile, olc::ResourcePack *pack)
|
|
{
|
|
if (pColData) delete[] pColData;
|
|
|
|
auto ReadData = [&](std::istream &is)
|
|
{
|
|
is.read((char*)&width, sizeof(int32_t));
|
|
is.read((char*)&height, sizeof(int32_t));
|
|
pColData = new Pixel[width * height];
|
|
is.read((char*)pColData, width * height * sizeof(uint32_t));
|
|
};
|
|
|
|
// These are essentially Memory Surfaces represented by olc::Sprite
|
|
// which load very fast, but are completely uncompressed
|
|
if (pack == nullptr)
|
|
{
|
|
std::ifstream ifs;
|
|
ifs.open(sImageFile, std::ifstream::binary);
|
|
if (ifs.is_open())
|
|
{
|
|
ReadData(ifs);
|
|
return olc::OK;
|
|
}
|
|
else
|
|
return olc::FAIL;
|
|
}
|
|
else
|
|
{
|
|
ResourceBuffer rb = pack->GetFileBuffer(sImageFile);
|
|
std::istream is(&rb);
|
|
ReadData(is);
|
|
}
|
|
|
|
|
|
return olc::FAIL;
|
|
}
|
|
|
|
olc::rcode Sprite::SaveToPGESprFile(std::string sImageFile)
|
|
{
|
|
if (pColData == nullptr) return olc::FAIL;
|
|
|
|
std::ofstream ofs;
|
|
ofs.open(sImageFile, std::ifstream::binary);
|
|
if (ofs.is_open())
|
|
{
|
|
ofs.write((char*)&width, sizeof(int32_t));
|
|
ofs.write((char*)&height, sizeof(int32_t));
|
|
ofs.write((char*)pColData, width*height*sizeof(uint32_t));
|
|
ofs.close();
|
|
return olc::OK;
|
|
}
|
|
|
|
return olc::FAIL;
|
|
}
|
|
|
|
#if defined(__linux__)
|
|
void pngReadStream(png_structp pngPtr, png_bytep data, png_size_t length)
|
|
{
|
|
png_voidp a = png_get_io_ptr(pngPtr);
|
|
((std::istream*)a)->read((char*)data, length);
|
|
}
|
|
#endif
|
|
|
|
olc::rcode Sprite::LoadFromFile(std::string sImageFile, olc::ResourcePack *pack)
|
|
{
|
|
UNUSED(pack);
|
|
|
|
#if defined(_WIN32)
|
|
Gdiplus::Bitmap *bmp = nullptr;
|
|
if (pack != nullptr)
|
|
{
|
|
// Load sprite from input stream
|
|
ResourceBuffer rb = pack->GetFileBuffer(sImageFile);
|
|
bmp = Gdiplus::Bitmap::FromStream(SHCreateMemStream((BYTE*)rb.vMemory.data(), rb.vMemory.size()));
|
|
}
|
|
else
|
|
{
|
|
// Load sprite from file
|
|
bmp = Gdiplus::Bitmap::FromFile(ConvertS2W(sImageFile).c_str());
|
|
}
|
|
|
|
if (bmp == nullptr) return olc::NO_FILE;
|
|
width = bmp->GetWidth();
|
|
height = bmp->GetHeight();
|
|
pColData = new Pixel[width * height];
|
|
|
|
for(int x=0; x<width; x++)
|
|
for (int y = 0; y < height; y++)
|
|
{
|
|
Gdiplus::Color c;
|
|
bmp->GetPixel(x, y, &c);
|
|
SetPixel(x, y, Pixel(c.GetRed(), c.GetGreen(), c.GetBlue(), c.GetAlpha()));
|
|
}
|
|
delete bmp;
|
|
return olc::OK;
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
////////////////////////////////////////////////////////////////////////////
|
|
// Use libpng, Thanks to Guillaume Cottenceau
|
|
// https://gist.github.com/niw/5963798
|
|
|
|
// Also reading png from streams
|
|
// http://www.piko3d.net/tutorials/libpng-tutorial-loading-png-files-from-streams/
|
|
|
|
png_structp png;
|
|
png_infop info;
|
|
|
|
auto loadPNG = [&]()
|
|
{
|
|
png_read_info(png, info);
|
|
png_byte color_type;
|
|
png_byte bit_depth;
|
|
png_bytep *row_pointers;
|
|
width = png_get_image_width(png, info);
|
|
height = png_get_image_height(png, info);
|
|
color_type = png_get_color_type(png, info);
|
|
bit_depth = png_get_bit_depth(png, info);
|
|
if (bit_depth == 16) png_set_strip_16(png);
|
|
if (color_type == PNG_COLOR_TYPE_PALETTE) png_set_palette_to_rgb(png);
|
|
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) png_set_expand_gray_1_2_4_to_8(png);
|
|
if (png_get_valid(png, info, PNG_INFO_tRNS)) png_set_tRNS_to_alpha(png);
|
|
if (color_type == PNG_COLOR_TYPE_RGB ||
|
|
color_type == PNG_COLOR_TYPE_GRAY ||
|
|
color_type == PNG_COLOR_TYPE_PALETTE)
|
|
png_set_filler(png, 0xFF, PNG_FILLER_AFTER);
|
|
if (color_type == PNG_COLOR_TYPE_GRAY ||
|
|
color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
|
|
png_set_gray_to_rgb(png);
|
|
png_read_update_info(png, info);
|
|
row_pointers = (png_bytep*)malloc(sizeof(png_bytep) * height);
|
|
for (int y = 0; y < height; y++) {
|
|
row_pointers[y] = (png_byte*)malloc(png_get_rowbytes(png, info));
|
|
}
|
|
png_read_image(png, row_pointers);
|
|
////////////////////////////////////////////////////////////////////////////
|
|
// Create sprite array
|
|
pColData = new Pixel[width * height];
|
|
// Iterate through image rows, converting into sprite format
|
|
for (int y = 0; y < height; y++)
|
|
{
|
|
png_bytep row = row_pointers[y];
|
|
for (int x = 0; x < width; x++)
|
|
{
|
|
png_bytep px = &(row[x * 4]);
|
|
SetPixel(x, y, Pixel(px[0], px[1], px[2], px[3]));
|
|
}
|
|
}
|
|
};
|
|
|
|
png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if (!png) goto fail_load;
|
|
|
|
info = png_create_info_struct(png);
|
|
if (!info) goto fail_load;
|
|
|
|
if (setjmp(png_jmpbuf(png))) goto fail_load;
|
|
|
|
if (pack == nullptr)
|
|
{
|
|
FILE* f = fopen(sImageFile.c_str(), "rb");
|
|
if (!f) return olc::NO_FILE;
|
|
png_init_io(png, f);
|
|
loadPNG();
|
|
fclose(f);
|
|
}
|
|
else
|
|
{
|
|
|
|
ResourceBuffer rb = pack->GetFileBuffer(sImageFile);
|
|
std::istream is(&rb);
|
|
png_set_read_fn(png, (png_voidp)&is, pngReadStream);
|
|
loadPNG();
|
|
}
|
|
return olc::OK;
|
|
|
|
fail_load:
|
|
width = 0;
|
|
height = 0;
|
|
pColData = nullptr;
|
|
return olc::FAIL;
|
|
#endif
|
|
}
|
|
|
|
void Sprite::SetSampleMode(olc::Sprite::Mode mode)
|
|
{
|
|
modeSample = mode;
|
|
}
|
|
|
|
|
|
Pixel Sprite::GetPixel(int32_t x, int32_t y)
|
|
{
|
|
if (modeSample == olc::Sprite::Mode::NORMAL)
|
|
{
|
|
if (x >= 0 && x < width && y >= 0 && y < height)
|
|
return pColData[y*width + x];
|
|
else
|
|
return Pixel(0, 0, 0, 0);
|
|
}
|
|
else
|
|
{
|
|
return pColData[abs(y%height)*width + abs(x%width)];
|
|
}
|
|
}
|
|
|
|
bool Sprite::SetPixel(int32_t x, int32_t y, Pixel p)
|
|
{
|
|
|
|
#ifdef OLC_DBG_OVERDRAW
|
|
nOverdrawCount++;
|
|
#endif
|
|
|
|
if (x >= 0 && x < width && y >= 0 && y < height)
|
|
{
|
|
pColData[y*width + x] = p;
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
Pixel Sprite::Sample(float x, float y)
|
|
{
|
|
int32_t sx = std::min((int32_t)((x * (float)width)), width - 1);
|
|
int32_t sy = std::min((int32_t)((y * (float)height)), height - 1);
|
|
return GetPixel(sx, sy);
|
|
}
|
|
|
|
Pixel Sprite::SampleBL(float u, float v)
|
|
{
|
|
u = u * width - 0.5f;
|
|
v = v * height - 0.5f;
|
|
int x = (int)floor(u); // cast to int rounds toward zero, not downward
|
|
int y = (int)floor(v); // Thanks @joshinils
|
|
float u_ratio = u - x;
|
|
float v_ratio = v - y;
|
|
float u_opposite = 1 - u_ratio;
|
|
float v_opposite = 1 - v_ratio;
|
|
|
|
olc::Pixel p1 = GetPixel(std::max(x, 0), std::max(y, 0));
|
|
olc::Pixel p2 = GetPixel(std::min(x + 1, (int)width - 1), std::max(y, 0));
|
|
olc::Pixel p3 = GetPixel(std::max(x, 0), std::min(y + 1, (int)height - 1));
|
|
olc::Pixel p4 = GetPixel(std::min(x + 1, (int)width - 1), std::min(y + 1, (int)height - 1));
|
|
|
|
return olc::Pixel(
|
|
(uint8_t)((p1.r * u_opposite + p2.r * u_ratio) * v_opposite + (p3.r * u_opposite + p4.r * u_ratio) * v_ratio),
|
|
(uint8_t)((p1.g * u_opposite + p2.g * u_ratio) * v_opposite + (p3.g * u_opposite + p4.g * u_ratio) * v_ratio),
|
|
(uint8_t)((p1.b * u_opposite + p2.b * u_ratio) * v_opposite + (p3.b * u_opposite + p4.b * u_ratio) * v_ratio));
|
|
}
|
|
|
|
Pixel* Sprite::GetData() { return pColData; }
|
|
|
|
//==========================================================
|
|
// Resource Packs - Allows you to store files in one large
|
|
// scrambled file
|
|
|
|
|
|
ResourceBuffer::ResourceBuffer(std::ifstream &ifs, uint32_t offset, uint32_t size)
|
|
{
|
|
vMemory.resize(size);
|
|
ifs.seekg(offset); ifs.read(vMemory.data(), vMemory.size());
|
|
setg(vMemory.data(), vMemory.data(), vMemory.data() + size);
|
|
}
|
|
|
|
ResourcePack::ResourcePack() { }
|
|
ResourcePack::~ResourcePack() { baseFile.close(); }
|
|
|
|
bool ResourcePack::AddFile(const std::string& sFile)
|
|
{
|
|
|
|
const std::string file = makeposix(sFile);
|
|
|
|
if (_gfs::exists(file))
|
|
{
|
|
sResourceFile e;
|
|
e.nSize = (uint32_t)_gfs::file_size(file);
|
|
e.nOffset = 0; // Unknown at this stage
|
|
mapFiles[file] = e;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool ResourcePack::LoadPack(const std::string& sFile, const std::string& sKey)
|
|
{
|
|
// Open the resource file
|
|
baseFile.open(sFile, std::ifstream::binary);
|
|
if (!baseFile.is_open()) return false;
|
|
|
|
// 1) Read Scrambled index
|
|
uint32_t nIndexSize = 0;
|
|
baseFile.read((char*)&nIndexSize, sizeof(uint32_t));
|
|
|
|
std::string buffer(nIndexSize, ' ');
|
|
for (uint32_t j = 0; j < nIndexSize; j++)
|
|
buffer[j] = baseFile.get();
|
|
|
|
std::string decoded = scramble(buffer, sKey);
|
|
std::stringstream iss(decoded);
|
|
|
|
// 2) Read Map
|
|
uint32_t nMapEntries;
|
|
iss.read((char*)&nMapEntries, sizeof(uint32_t));
|
|
for (uint32_t i = 0; i < nMapEntries; i++)
|
|
{
|
|
uint32_t nFilePathSize = 0;
|
|
iss.read((char*)&nFilePathSize, sizeof(uint32_t));
|
|
|
|
std::string sFileName(nFilePathSize, ' ');
|
|
for (uint32_t j = 0; j < nFilePathSize; j++)
|
|
sFileName[j] = iss.get();
|
|
|
|
sResourceFile e;
|
|
iss.read((char*)&e.nSize, sizeof(uint32_t));
|
|
iss.read((char*)&e.nOffset, sizeof(uint32_t));
|
|
mapFiles[sFileName] = e;
|
|
}
|
|
|
|
// Don't close base file! we will provide a stream
|
|
// pointer when the file is requested
|
|
return true;
|
|
}
|
|
|
|
bool ResourcePack::SavePack(const std::string& sFile, const std::string& sKey)
|
|
{
|
|
// Create/Overwrite the resource file
|
|
std::ofstream ofs(sFile, std::ofstream::binary);
|
|
if (!ofs.is_open()) return false;
|
|
|
|
// Iterate through map
|
|
uint32_t nIndexSize = 0; // Unknown for now
|
|
ofs.write((char*)&nIndexSize, sizeof(uint32_t));
|
|
uint32_t nMapSize = mapFiles.size();
|
|
ofs.write((char*)&nMapSize, sizeof(uint32_t));
|
|
for (auto &e : mapFiles)
|
|
{
|
|
// Write the path of the file
|
|
size_t nPathSize = e.first.size();
|
|
ofs.write((char*)&nPathSize, sizeof(uint32_t));
|
|
ofs.write(e.first.c_str(), nPathSize);
|
|
|
|
// Write the file entry properties
|
|
ofs.write((char*)&e.second.nSize, sizeof(uint32_t));
|
|
ofs.write((char*)&e.second.nOffset, sizeof(uint32_t));
|
|
}
|
|
|
|
// 2) Write the individual Data
|
|
std::streampos offset = ofs.tellp();
|
|
nIndexSize = (uint32_t)offset;
|
|
for (auto &e : mapFiles)
|
|
{
|
|
// Store beginning of file offset within resource pack file
|
|
e.second.nOffset = (uint32_t)offset;
|
|
|
|
// Load the file to be added
|
|
std::vector<char> vBuffer(e.second.nSize);
|
|
std::ifstream i(e.first, std::ifstream::binary);
|
|
i.read(vBuffer.data(), e.second.nSize);
|
|
i.close();
|
|
|
|
// Write the loaded file into resource pack file
|
|
ofs.write(vBuffer.data(), e.second.nSize);
|
|
offset += e.second.nSize;
|
|
}
|
|
|
|
// 3) Scramble Index
|
|
std::stringstream oss;
|
|
oss.write((char*)&nMapSize, sizeof(uint32_t));
|
|
for (auto &e : mapFiles)
|
|
{
|
|
// Write the path of the file
|
|
size_t nPathSize = e.first.size();
|
|
oss.write((char*)&nPathSize, sizeof(uint32_t));
|
|
oss.write(e.first.c_str(), nPathSize);
|
|
|
|
// Write the file entry properties
|
|
oss.write((char*)&e.second.nSize, sizeof(uint32_t));
|
|
oss.write((char*)&e.second.nOffset, sizeof(uint32_t));
|
|
}
|
|
std::string sIndexString = scramble(oss.str(), sKey);
|
|
|
|
// 4) Rewrite Map (it has been updated with offsets now)
|
|
// at start of file
|
|
ofs.seekp(std::ios::beg);
|
|
ofs.write((char*)&nIndexSize, sizeof(uint32_t));
|
|
ofs.write(sIndexString.c_str(), nIndexSize);
|
|
ofs.close();
|
|
return true;
|
|
}
|
|
|
|
ResourceBuffer ResourcePack::GetFileBuffer(const std::string& sFile)
|
|
{
|
|
return ResourceBuffer(baseFile, mapFiles[sFile].nOffset, mapFiles[sFile].nSize);
|
|
}
|
|
|
|
bool ResourcePack::Loaded()
|
|
{
|
|
return baseFile.is_open();
|
|
}
|
|
|
|
const std::string ResourcePack::scramble(const std::string& data, const std::string& key)
|
|
{
|
|
size_t c = 0; std::string o;
|
|
for (auto s : data) o += std::string(1, s ^ key[(c++) % key.size()]);
|
|
return o;
|
|
};
|
|
|
|
std::string ResourcePack::makeposix(const std::string& path)
|
|
{
|
|
std::string o;
|
|
for (auto s : path) o += std::string(1, s == '\\' ? '/' : s);
|
|
return o;
|
|
};
|
|
|
|
//==========================================================
|
|
|
|
PixelGameEngine::PixelGameEngine()
|
|
{
|
|
sAppName = "Undefined";
|
|
olc::PGEX::pge = this;
|
|
}
|
|
|
|
olc::rcode PixelGameEngine::Construct(uint32_t screen_w, uint32_t screen_h, uint32_t pixel_w, uint32_t pixel_h, bool full_screen, bool vsync)
|
|
{
|
|
nScreenWidth = screen_w;
|
|
nScreenHeight = screen_h;
|
|
nPixelWidth = pixel_w;
|
|
nPixelHeight = pixel_h;
|
|
bFullScreen = full_screen;
|
|
bEnableVSYNC = vsync;
|
|
|
|
fPixelX = 2.0f / (float)(nScreenWidth);
|
|
fPixelY = 2.0f / (float)(nScreenHeight);
|
|
|
|
if (nPixelWidth == 0 || nPixelHeight == 0 || nScreenWidth == 0 || nScreenHeight == 0)
|
|
return olc::FAIL;
|
|
|
|
#if defined(_WIN32) && defined(UNICODE) && !defined(__MINGW32__)
|
|
wsAppName = ConvertS2W(sAppName);
|
|
#endif
|
|
// Load the default font sheet
|
|
olc_ConstructFontSheet();
|
|
|
|
// Create a sprite that represents the primary drawing target
|
|
pDefaultDrawTarget = new Sprite(nScreenWidth, nScreenHeight);
|
|
SetDrawTarget(nullptr);
|
|
return olc::OK;
|
|
}
|
|
|
|
|
|
void PixelGameEngine::SetScreenSize(int w, int h)
|
|
{
|
|
delete pDefaultDrawTarget;
|
|
nScreenWidth = w;
|
|
nScreenHeight = h;
|
|
pDefaultDrawTarget = new Sprite(nScreenWidth, nScreenHeight);
|
|
SetDrawTarget(nullptr);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
#if defined(_WIN32)
|
|
SwapBuffers(glDeviceContext);
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
glXSwapBuffers(olc_Display, olc_Window);
|
|
#endif
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
olc_UpdateViewport();
|
|
}
|
|
|
|
olc::rcode PixelGameEngine::Start()
|
|
{
|
|
// Construct the window
|
|
if (!olc_WindowCreate())
|
|
return olc::FAIL;
|
|
|
|
// Start the thread
|
|
bAtomActive = true;
|
|
std::thread t = std::thread(&PixelGameEngine::EngineThread, this);
|
|
|
|
#if defined(_WIN32)
|
|
// Handle Windows Message Loop
|
|
MSG msg;
|
|
while (GetMessage(&msg, NULL, 0, 0) > 0)
|
|
{
|
|
TranslateMessage(&msg);
|
|
DispatchMessage(&msg);
|
|
}
|
|
#endif
|
|
|
|
// Wait for thread to be exited
|
|
t.join();
|
|
return olc::OK;
|
|
}
|
|
|
|
void PixelGameEngine::SetDrawTarget(Sprite *target)
|
|
{
|
|
if (target)
|
|
pDrawTarget = target;
|
|
else
|
|
pDrawTarget = pDefaultDrawTarget;
|
|
}
|
|
|
|
Sprite* PixelGameEngine::GetDrawTarget()
|
|
{
|
|
return pDrawTarget;
|
|
}
|
|
|
|
int32_t PixelGameEngine::GetDrawTargetWidth()
|
|
{
|
|
if (pDrawTarget)
|
|
return pDrawTarget->width;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
int32_t PixelGameEngine::GetDrawTargetHeight()
|
|
{
|
|
if (pDrawTarget)
|
|
return pDrawTarget->height;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
bool PixelGameEngine::IsFocused()
|
|
{
|
|
return bHasInputFocus;
|
|
}
|
|
|
|
HWButton PixelGameEngine::GetKey(Key k)
|
|
{
|
|
return pKeyboardState[k];
|
|
}
|
|
|
|
HWButton PixelGameEngine::GetMouse(uint32_t b)
|
|
{
|
|
return pMouseState[b];
|
|
}
|
|
|
|
int32_t PixelGameEngine::GetMouseX()
|
|
{
|
|
return nMousePosX;
|
|
}
|
|
|
|
int32_t PixelGameEngine::GetMouseY()
|
|
{
|
|
return nMousePosY;
|
|
}
|
|
|
|
int32_t PixelGameEngine::GetMouseWheel()
|
|
{
|
|
return nMouseWheelDelta;
|
|
}
|
|
|
|
int32_t PixelGameEngine::ScreenWidth()
|
|
{
|
|
return nScreenWidth;
|
|
}
|
|
|
|
int32_t PixelGameEngine::ScreenHeight()
|
|
{
|
|
return nScreenHeight;
|
|
}
|
|
|
|
bool PixelGameEngine::Draw(const olc::vi2d& pos, Pixel p)
|
|
{ return Draw(pos.x, pos.y, p); }
|
|
|
|
bool PixelGameEngine::Draw(int32_t x, int32_t y, Pixel p)
|
|
{
|
|
if (!pDrawTarget) return false;
|
|
|
|
|
|
if (nPixelMode == Pixel::NORMAL)
|
|
{
|
|
return pDrawTarget->SetPixel(x, y, p);
|
|
}
|
|
|
|
if (nPixelMode == Pixel::MASK)
|
|
{
|
|
if(p.a == 255)
|
|
return pDrawTarget->SetPixel(x, y, p);
|
|
}
|
|
|
|
if (nPixelMode == Pixel::ALPHA)
|
|
{
|
|
Pixel d = pDrawTarget->GetPixel(x, y);
|
|
float a = (float)(p.a / 255.0f) * fBlendFactor;
|
|
float c = 1.0f - a;
|
|
float r = a * (float)p.r + c * (float)d.r;
|
|
float g = a * (float)p.g + c * (float)d.g;
|
|
float b = a * (float)p.b + c * (float)d.b;
|
|
return pDrawTarget->SetPixel(x, y, Pixel((uint8_t)r, (uint8_t)g, (uint8_t)b));
|
|
}
|
|
|
|
if (nPixelMode == Pixel::CUSTOM)
|
|
{
|
|
return pDrawTarget->SetPixel(x, y, funcPixelMode(x, y, p, pDrawTarget->GetPixel(x, y)));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void PixelGameEngine::SetSubPixelOffset(float ox, float oy)
|
|
{
|
|
fSubPixelOffsetX = ox * fPixelX;
|
|
fSubPixelOffsetY = oy * fPixelY;
|
|
}
|
|
|
|
void PixelGameEngine::DrawLine(const olc::vi2d& pos1, const olc::vi2d& pos2, Pixel p, uint32_t pattern)
|
|
{ DrawLine(pos1.x, pos1.y, pos2.x, pos2.y, p, pattern); }
|
|
|
|
void PixelGameEngine::DrawLine(int32_t x1, int32_t y1, int32_t x2, int32_t y2, Pixel p, uint32_t pattern)
|
|
{
|
|
int x, y, dx, dy, dx1, dy1, px, py, xe, ye, i;
|
|
dx = x2 - x1; dy = y2 - y1;
|
|
|
|
auto rol = [&](void)
|
|
{
|
|
pattern = (pattern << 1) | (pattern >> 31);
|
|
return pattern & 1;
|
|
};
|
|
|
|
// straight lines idea by gurkanctn
|
|
if (dx == 0) // Line is vertical
|
|
{
|
|
if (y2 < y1) std::swap(y1, y2);
|
|
for (y = y1; y <= y2; y++)
|
|
if (rol()) Draw(x1, y, p);
|
|
return;
|
|
}
|
|
|
|
if (dy == 0) // Line is horizontal
|
|
{
|
|
if (x2 < x1) std::swap(x1, x2);
|
|
for (x = x1; x <= x2; x++)
|
|
if (rol()) Draw(x, y1, p);
|
|
return;
|
|
}
|
|
|
|
// Line is Funk-aye
|
|
dx1 = abs(dx); dy1 = abs(dy);
|
|
px = 2 * dy1 - dx1; py = 2 * dx1 - dy1;
|
|
if (dy1 <= dx1)
|
|
{
|
|
if (dx >= 0)
|
|
{
|
|
x = x1; y = y1; xe = x2;
|
|
}
|
|
else
|
|
{
|
|
x = x2; y = y2; xe = x1;
|
|
}
|
|
|
|
if (rol()) Draw(x, y, p);
|
|
|
|
for (i = 0; x<xe; i++)
|
|
{
|
|
x = x + 1;
|
|
if (px<0)
|
|
px = px + 2 * dy1;
|
|
else
|
|
{
|
|
if ((dx<0 && dy<0) || (dx>0 && dy>0)) y = y + 1; else y = y - 1;
|
|
px = px + 2 * (dy1 - dx1);
|
|
}
|
|
if (rol()) Draw(x, y, p);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (dy >= 0)
|
|
{
|
|
x = x1; y = y1; ye = y2;
|
|
}
|
|
else
|
|
{
|
|
x = x2; y = y2; ye = y1;
|
|
}
|
|
|
|
if (rol()) Draw(x, y, p);
|
|
|
|
for (i = 0; y<ye; i++)
|
|
{
|
|
y = y + 1;
|
|
if (py <= 0)
|
|
py = py + 2 * dx1;
|
|
else
|
|
{
|
|
if ((dx<0 && dy<0) || (dx>0 && dy>0)) x = x + 1; else x = x - 1;
|
|
py = py + 2 * (dx1 - dy1);
|
|
}
|
|
if (rol()) Draw(x, y, p);
|
|
}
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::DrawCircle(const olc::vi2d& pos, int32_t radius, Pixel p, uint8_t mask)
|
|
{ DrawCircle(pos.x, pos.y, radius, p, mask);}
|
|
|
|
void PixelGameEngine::DrawCircle(int32_t x, int32_t y, int32_t radius, Pixel p, uint8_t mask)
|
|
{
|
|
int x0 = 0;
|
|
int y0 = radius;
|
|
int d = 3 - 2 * radius;
|
|
if (!radius) return;
|
|
|
|
while (y0 >= x0) // only formulate 1/8 of circle
|
|
{
|
|
if (mask & 0x01) Draw(x + x0, y - y0, p);
|
|
if (mask & 0x02) Draw(x + y0, y - x0, p);
|
|
if (mask & 0x04) Draw(x + y0, y + x0, p);
|
|
if (mask & 0x08) Draw(x + x0, y + y0, p);
|
|
if (mask & 0x10) Draw(x - x0, y + y0, p);
|
|
if (mask & 0x20) Draw(x - y0, y + x0, p);
|
|
if (mask & 0x40) Draw(x - y0, y - x0, p);
|
|
if (mask & 0x80) Draw(x - x0, y - y0, p);
|
|
if (d < 0) d += 4 * x0++ + 6;
|
|
else d += 4 * (x0++ - y0--) + 10;
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::FillCircle(const olc::vi2d& pos, int32_t radius, Pixel p)
|
|
{ FillCircle(pos.x, pos.y, radius, p); }
|
|
|
|
void PixelGameEngine::FillCircle(int32_t x, int32_t y, int32_t radius, Pixel p)
|
|
{
|
|
// Taken from wikipedia
|
|
int x0 = 0;
|
|
int y0 = radius;
|
|
int d = 3 - 2 * radius;
|
|
if (!radius) return;
|
|
|
|
auto drawline = [&](int sx, int ex, int ny)
|
|
{
|
|
for (int i = sx; i <= ex; i++)
|
|
Draw(i, ny, p);
|
|
};
|
|
|
|
while (y0 >= x0)
|
|
{
|
|
// Modified to draw scan-lines instead of edges
|
|
drawline(x - x0, x + x0, y - y0);
|
|
drawline(x - y0, x + y0, y - x0);
|
|
drawline(x - x0, x + x0, y + y0);
|
|
drawline(x - y0, x + y0, y + x0);
|
|
if (d < 0) d += 4 * x0++ + 6;
|
|
else d += 4 * (x0++ - y0--) + 10;
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::DrawRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p)
|
|
{ DrawRect(pos.x, pos.y, size.x, size.y, p); }
|
|
|
|
void PixelGameEngine::DrawRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p)
|
|
{
|
|
DrawLine(x, y, x+w, y, p);
|
|
DrawLine(x+w, y, x+w, y+h, p);
|
|
DrawLine(x+w, y+h, x, y+h, p);
|
|
DrawLine(x, y+h, x, y, p);
|
|
}
|
|
|
|
void PixelGameEngine::Clear(Pixel p)
|
|
{
|
|
int pixels = GetDrawTargetWidth() * GetDrawTargetHeight();
|
|
Pixel* m = GetDrawTarget()->GetData();
|
|
for (int i = 0; i < pixels; i++)
|
|
m[i] = p;
|
|
#ifdef OLC_DBG_OVERDRAW
|
|
olc::Sprite::nOverdrawCount += pixels;
|
|
#endif
|
|
}
|
|
|
|
void PixelGameEngine::FillRect(const olc::vi2d& pos, const olc::vi2d& size, Pixel p)
|
|
{ FillRect(pos.x, pos.y, size.x, size.y, p); }
|
|
|
|
void PixelGameEngine::FillRect(int32_t x, int32_t y, int32_t w, int32_t h, Pixel p)
|
|
{
|
|
int32_t x2 = x + w;
|
|
int32_t y2 = y + h;
|
|
|
|
if (x < 0) x = 0;
|
|
if (x >= (int32_t)GetDrawTargetWidth()) x = (int32_t)GetDrawTargetWidth();
|
|
if (y < 0) y = 0;
|
|
if (y >= (int32_t)GetDrawTargetHeight()) y = (int32_t)GetDrawTargetHeight();
|
|
|
|
if (x2 < 0) x2 = 0;
|
|
if (x2 >= (int32_t)GetDrawTargetWidth()) x2 = (int32_t)GetDrawTargetWidth();
|
|
if (y2 < 0) y2 = 0;
|
|
if (y2 >= (int32_t)GetDrawTargetHeight()) y2 = (int32_t)GetDrawTargetHeight();
|
|
|
|
for (int i = x; i < x2; i++)
|
|
for (int j = y; j < y2; j++)
|
|
Draw(i, j, p);
|
|
}
|
|
|
|
void PixelGameEngine::DrawTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p)
|
|
{ DrawTriangle(pos1.x, pos1.y, pos2.x, pos2.y, pos3.x, pos3.y, p); }
|
|
|
|
void PixelGameEngine::DrawTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p)
|
|
{
|
|
DrawLine(x1, y1, x2, y2, p);
|
|
DrawLine(x2, y2, x3, y3, p);
|
|
DrawLine(x3, y3, x1, y1, p);
|
|
}
|
|
|
|
void PixelGameEngine::FillTriangle(const olc::vi2d& pos1, const olc::vi2d& pos2, const olc::vi2d& pos3, Pixel p)
|
|
{ FillTriangle(pos1.x, pos1.y, pos2.x, pos2.y, pos3.x, pos3.y, p); }
|
|
|
|
// https://www.avrfreaks.net/sites/default/files/triangles.c
|
|
void PixelGameEngine::FillTriangle(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, Pixel p)
|
|
{
|
|
auto SWAP = [](int &x, int &y) { int t = x; x = y; y = t; };
|
|
auto drawline = [&](int sx, int ex, int ny) { for (int i = sx; i <= ex; i++) Draw(i, ny, p); };
|
|
|
|
int t1x, t2x, y, minx, maxx, t1xp, t2xp;
|
|
bool changed1 = false;
|
|
bool changed2 = false;
|
|
int signx1, signx2, dx1, dy1, dx2, dy2;
|
|
int e1, e2;
|
|
// Sort vertices
|
|
if (y1>y2) { SWAP(y1, y2); SWAP(x1, x2); }
|
|
if (y1>y3) { SWAP(y1, y3); SWAP(x1, x3); }
|
|
if (y2>y3) { SWAP(y2, y3); SWAP(x2, x3); }
|
|
|
|
t1x = t2x = x1; y = y1; // Starting points
|
|
dx1 = (int)(x2 - x1); if (dx1<0) { dx1 = -dx1; signx1 = -1; }
|
|
else signx1 = 1;
|
|
dy1 = (int)(y2 - y1);
|
|
|
|
dx2 = (int)(x3 - x1); if (dx2<0) { dx2 = -dx2; signx2 = -1; }
|
|
else signx2 = 1;
|
|
dy2 = (int)(y3 - y1);
|
|
|
|
if (dy1 > dx1) { // swap values
|
|
SWAP(dx1, dy1);
|
|
changed1 = true;
|
|
}
|
|
if (dy2 > dx2) { // swap values
|
|
SWAP(dy2, dx2);
|
|
changed2 = true;
|
|
}
|
|
|
|
e2 = (int)(dx2 >> 1);
|
|
// Flat top, just process the second half
|
|
if (y1 == y2) goto next;
|
|
e1 = (int)(dx1 >> 1);
|
|
|
|
for (int i = 0; i < dx1;) {
|
|
t1xp = 0; t2xp = 0;
|
|
if (t1x<t2x) { minx = t1x; maxx = t2x; }
|
|
else { minx = t2x; maxx = t1x; }
|
|
// process first line until y value is about to change
|
|
while (i<dx1) {
|
|
i++;
|
|
e1 += dy1;
|
|
while (e1 >= dx1) {
|
|
e1 -= dx1;
|
|
if (changed1) t1xp = signx1;//t1x += signx1;
|
|
else goto next1;
|
|
}
|
|
if (changed1) break;
|
|
else t1x += signx1;
|
|
}
|
|
// Move line
|
|
next1:
|
|
// process second line until y value is about to change
|
|
while (1) {
|
|
e2 += dy2;
|
|
while (e2 >= dx2) {
|
|
e2 -= dx2;
|
|
if (changed2) t2xp = signx2;//t2x += signx2;
|
|
else goto next2;
|
|
}
|
|
if (changed2) break;
|
|
else t2x += signx2;
|
|
}
|
|
next2:
|
|
if (minx>t1x) minx = t1x;
|
|
if (minx>t2x) minx = t2x;
|
|
if (maxx<t1x) maxx = t1x;
|
|
if (maxx<t2x) maxx = t2x;
|
|
drawline(minx, maxx, y); // Draw line from min to max points found on the y
|
|
// Now increase y
|
|
if (!changed1) t1x += signx1;
|
|
t1x += t1xp;
|
|
if (!changed2) t2x += signx2;
|
|
t2x += t2xp;
|
|
y += 1;
|
|
if (y == y2) break;
|
|
|
|
}
|
|
next:
|
|
// Second half
|
|
dx1 = (int)(x3 - x2); if (dx1<0) { dx1 = -dx1; signx1 = -1; }
|
|
else signx1 = 1;
|
|
dy1 = (int)(y3 - y2);
|
|
t1x = x2;
|
|
|
|
if (dy1 > dx1) { // swap values
|
|
SWAP(dy1, dx1);
|
|
changed1 = true;
|
|
}
|
|
else changed1 = false;
|
|
|
|
e1 = (int)(dx1 >> 1);
|
|
|
|
for (int i = 0; i <= dx1; i++) {
|
|
t1xp = 0; t2xp = 0;
|
|
if (t1x<t2x) { minx = t1x; maxx = t2x; }
|
|
else { minx = t2x; maxx = t1x; }
|
|
// process first line until y value is about to change
|
|
while (i<dx1) {
|
|
e1 += dy1;
|
|
while (e1 >= dx1) {
|
|
e1 -= dx1;
|
|
if (changed1) { t1xp = signx1; break; }//t1x += signx1;
|
|
else goto next3;
|
|
}
|
|
if (changed1) break;
|
|
else t1x += signx1;
|
|
if (i<dx1) i++;
|
|
}
|
|
next3:
|
|
// process second line until y value is about to change
|
|
while (t2x != x3) {
|
|
e2 += dy2;
|
|
while (e2 >= dx2) {
|
|
e2 -= dx2;
|
|
if (changed2) t2xp = signx2;
|
|
else goto next4;
|
|
}
|
|
if (changed2) break;
|
|
else t2x += signx2;
|
|
}
|
|
next4:
|
|
|
|
if (minx>t1x) minx = t1x;
|
|
if (minx>t2x) minx = t2x;
|
|
if (maxx<t1x) maxx = t1x;
|
|
if (maxx<t2x) maxx = t2x;
|
|
drawline(minx, maxx, y);
|
|
if (!changed1) t1x += signx1;
|
|
t1x += t1xp;
|
|
if (!changed2) t2x += signx2;
|
|
t2x += t2xp;
|
|
y += 1;
|
|
if (y>y3) return;
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::DrawSprite(const olc::vi2d& pos, Sprite *sprite, uint32_t scale)
|
|
{ DrawSprite(pos.x, pos.y, sprite, scale); }
|
|
|
|
void PixelGameEngine::DrawSprite(int32_t x, int32_t y, Sprite *sprite, uint32_t scale)
|
|
{
|
|
if (sprite == nullptr)
|
|
return;
|
|
|
|
if (scale > 1)
|
|
{
|
|
for (int32_t i = 0; i < sprite->width; i++)
|
|
for (int32_t j = 0; j < sprite->height; j++)
|
|
for (uint32_t is = 0; is < scale; is++)
|
|
for (uint32_t js = 0; js < scale; js++)
|
|
Draw(x + (i*scale) + is, y + (j*scale) + js, sprite->GetPixel(i, j));
|
|
}
|
|
else
|
|
{
|
|
for (int32_t i = 0; i < sprite->width; i++)
|
|
for (int32_t j = 0; j < sprite->height; j++)
|
|
Draw(x + i, y + j, sprite->GetPixel(i, j));
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::DrawPartialSprite(const olc::vi2d& pos, Sprite *sprite, const olc::vi2d& sourcepos, const olc::vi2d& size, uint32_t scale)
|
|
{ DrawPartialSprite(pos.x, pos.y, sprite, sourcepos.x, sourcepos.y, size.x, size.y, scale); }
|
|
|
|
void PixelGameEngine::DrawPartialSprite(int32_t x, int32_t y, Sprite *sprite, int32_t ox, int32_t oy, int32_t w, int32_t h, uint32_t scale)
|
|
{
|
|
if (sprite == nullptr)
|
|
return;
|
|
|
|
if (scale > 1)
|
|
{
|
|
for (int32_t i = 0; i < w; i++)
|
|
for (int32_t j = 0; j < h; j++)
|
|
for (uint32_t is = 0; is < scale; is++)
|
|
for (uint32_t js = 0; js < scale; js++)
|
|
Draw(x + (i*scale) + is, y + (j*scale) + js, sprite->GetPixel(i + ox, j + oy));
|
|
}
|
|
else
|
|
{
|
|
for (int32_t i = 0; i < w; i++)
|
|
for (int32_t j = 0; j < h; j++)
|
|
Draw(x + i, y + j, sprite->GetPixel(i + ox, j + oy));
|
|
}
|
|
}
|
|
|
|
void PixelGameEngine::DrawString(const olc::vi2d& pos, const std::string& sText, Pixel col, uint32_t scale)
|
|
{ DrawString(pos.x, pos.y, sText, col, scale); }
|
|
|
|
void PixelGameEngine::DrawString(int32_t x, int32_t y, const std::string& sText, Pixel col, uint32_t scale)
|
|
{
|
|
int32_t sx = 0;
|
|
int32_t sy = 0;
|
|
Pixel::Mode m = nPixelMode;
|
|
if(col.ALPHA != 255) SetPixelMode(Pixel::ALPHA);
|
|
else SetPixelMode(Pixel::MASK);
|
|
for (auto c : sText)
|
|
{
|
|
if (c == '\n')
|
|
{
|
|
sx = 0; sy += 8 * scale;
|
|
}
|
|
else
|
|
{
|
|
int32_t ox = (c - 32) % 16;
|
|
int32_t oy = (c - 32) / 16;
|
|
|
|
if (scale > 1)
|
|
{
|
|
for (uint32_t i = 0; i < 8; i++)
|
|
for (uint32_t j = 0; j < 8; j++)
|
|
if (fontSprite->GetPixel(i + ox * 8, j + oy * 8).r > 0)
|
|
for (uint32_t is = 0; is < scale; is++)
|
|
for (uint32_t js = 0; js < scale; js++)
|
|
Draw(x + sx + (i*scale) + is, y + sy + (j*scale) + js, col);
|
|
}
|
|
else
|
|
{
|
|
for (uint32_t i = 0; i < 8; i++)
|
|
for (uint32_t j = 0; j < 8; j++)
|
|
if (fontSprite->GetPixel(i + ox * 8, j + oy * 8).r > 0)
|
|
Draw(x + sx + i, y + sy + j, col);
|
|
}
|
|
sx += 8 * scale;
|
|
}
|
|
}
|
|
SetPixelMode(m);
|
|
}
|
|
|
|
void PixelGameEngine::SetPixelMode(Pixel::Mode m)
|
|
{
|
|
nPixelMode = m;
|
|
}
|
|
|
|
Pixel::Mode PixelGameEngine::GetPixelMode()
|
|
{
|
|
return nPixelMode;
|
|
}
|
|
|
|
void PixelGameEngine::SetPixelMode(std::function<olc::Pixel(const int x, const int y, const olc::Pixel&, const olc::Pixel&)> pixelMode)
|
|
{
|
|
funcPixelMode = pixelMode;
|
|
nPixelMode = Pixel::Mode::CUSTOM;
|
|
}
|
|
|
|
void PixelGameEngine::SetPixelBlend(float fBlend)
|
|
{
|
|
fBlendFactor = fBlend;
|
|
if (fBlendFactor < 0.0f) fBlendFactor = 0.0f;
|
|
if (fBlendFactor > 1.0f) fBlendFactor = 1.0f;
|
|
}
|
|
|
|
// User must override these functions as required. I have not made
|
|
// them abstract because I do need a default behaviour to occur if
|
|
// they are not overwritten
|
|
bool PixelGameEngine::OnUserCreate()
|
|
{ return false; }
|
|
bool PixelGameEngine::OnUserUpdate(float fElapsedTime)
|
|
{ UNUSED(fElapsedTime); return false; }
|
|
bool PixelGameEngine::OnUserDestroy()
|
|
{ return true; }
|
|
//////////////////////////////////////////////////////////////////
|
|
|
|
void PixelGameEngine::olc_UpdateViewport()
|
|
{
|
|
int32_t ww = nScreenWidth * nPixelWidth;
|
|
int32_t wh = nScreenHeight * nPixelHeight;
|
|
float wasp = (float)ww / (float)wh;
|
|
|
|
nViewW = (int32_t)nWindowWidth;
|
|
nViewH = (int32_t)((float)nViewW / wasp);
|
|
|
|
if (nViewH > nWindowHeight)
|
|
{
|
|
nViewH = nWindowHeight;
|
|
nViewW = (int32_t)((float)nViewH * wasp);
|
|
}
|
|
|
|
nViewX = (nWindowWidth - nViewW) / 2;
|
|
nViewY = (nWindowHeight - nViewH) / 2;
|
|
}
|
|
|
|
void PixelGameEngine::olc_UpdateWindowSize(int32_t x, int32_t y)
|
|
{
|
|
nWindowWidth = x;
|
|
nWindowHeight = y;
|
|
olc_UpdateViewport();
|
|
}
|
|
|
|
void PixelGameEngine::olc_UpdateMouseWheel(int32_t delta)
|
|
{
|
|
nMouseWheelDeltaCache += delta;
|
|
}
|
|
|
|
void PixelGameEngine::olc_UpdateMouse(int32_t x, int32_t y)
|
|
{
|
|
// Mouse coords come in screen space
|
|
// But leave in pixel space
|
|
|
|
// Full Screen mode may have a weird viewport we must clamp to
|
|
x -= nViewX;
|
|
y -= nViewY;
|
|
|
|
nMousePosXcache = (int32_t)(((float)x / (float)(nWindowWidth - (nViewX * 2)) * (float)nScreenWidth));
|
|
nMousePosYcache = (int32_t)(((float)y / (float)(nWindowHeight - (nViewY * 2)) * (float)nScreenHeight));
|
|
|
|
if (nMousePosXcache >= (int32_t)nScreenWidth)
|
|
nMousePosXcache = nScreenWidth - 1;
|
|
if (nMousePosYcache >= (int32_t)nScreenHeight)
|
|
nMousePosYcache = nScreenHeight - 1;
|
|
|
|
if (nMousePosXcache < 0)
|
|
nMousePosXcache = 0;
|
|
if (nMousePosYcache < 0)
|
|
nMousePosYcache = 0;
|
|
}
|
|
|
|
void PixelGameEngine::EngineThread()
|
|
{
|
|
// Start OpenGL, the context is owned by the game thread
|
|
olc_OpenGLCreate();
|
|
|
|
// Create Screen Texture - disable filtering
|
|
glEnable(GL_TEXTURE_2D);
|
|
glGenTextures(1, &glBuffer);
|
|
glBindTexture(GL_TEXTURE_2D, glBuffer);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, nScreenWidth, nScreenHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, pDefaultDrawTarget->GetData());
|
|
|
|
// Create user resources as part of this thread
|
|
if (!OnUserCreate())
|
|
bAtomActive = false;
|
|
|
|
auto tp1 = std::chrono::system_clock::now();
|
|
auto tp2 = std::chrono::system_clock::now();
|
|
|
|
while (bAtomActive)
|
|
{
|
|
// Run as fast as possible
|
|
while (bAtomActive)
|
|
{
|
|
// Handle Timing
|
|
tp2 = std::chrono::system_clock::now();
|
|
std::chrono::duration<float> elapsedTime = tp2 - tp1;
|
|
tp1 = tp2;
|
|
|
|
// Our time per frame coefficient
|
|
float fElapsedTime = elapsedTime.count();
|
|
|
|
#if defined(__linux__)
|
|
// Handle Xlib Message Loop - we do this in the
|
|
// same thread that OpenGL was created so we dont
|
|
// need to worry too much about multithreading with X11
|
|
XEvent xev;
|
|
while (XPending(olc_Display))
|
|
{
|
|
XNextEvent(olc_Display, &xev);
|
|
if (xev.type == Expose)
|
|
{
|
|
XWindowAttributes gwa;
|
|
XGetWindowAttributes(olc_Display, olc_Window, &gwa);
|
|
nWindowWidth = gwa.width;
|
|
nWindowHeight = gwa.height;
|
|
olc_UpdateViewport();
|
|
glClear(GL_COLOR_BUFFER_BIT); // Thanks Benedani!
|
|
}
|
|
else if (xev.type == ConfigureNotify)
|
|
{
|
|
XConfigureEvent xce = xev.xconfigure;
|
|
nWindowWidth = xce.width;
|
|
nWindowHeight = xce.height;
|
|
}
|
|
else if (xev.type == KeyPress)
|
|
{
|
|
KeySym sym = XLookupKeysym(&xev.xkey, 0);
|
|
pKeyNewState[mapKeys[sym]] = true;
|
|
XKeyEvent *e = (XKeyEvent *)&xev; // Because DragonEye loves numpads
|
|
XLookupString(e, NULL, 0, &sym, NULL);
|
|
pKeyNewState[mapKeys[sym]] = true;
|
|
}
|
|
else if (xev.type == KeyRelease)
|
|
{
|
|
KeySym sym = XLookupKeysym(&xev.xkey, 0);
|
|
pKeyNewState[mapKeys[sym]] = false;
|
|
XKeyEvent *e = (XKeyEvent *)&xev;
|
|
XLookupString(e, NULL, 0, &sym, NULL);
|
|
pKeyNewState[mapKeys[sym]] = false;
|
|
}
|
|
else if (xev.type == ButtonPress)
|
|
{
|
|
switch (xev.xbutton.button)
|
|
{
|
|
case 1: pMouseNewState[0] = true; break;
|
|
case 2: pMouseNewState[2] = true; break;
|
|
case 3: pMouseNewState[1] = true; break;
|
|
case 4: olc_UpdateMouseWheel(120); break;
|
|
case 5: olc_UpdateMouseWheel(-120); break;
|
|
default: break;
|
|
}
|
|
}
|
|
else if (xev.type == ButtonRelease)
|
|
{
|
|
switch (xev.xbutton.button)
|
|
{
|
|
case 1: pMouseNewState[0] = false; break;
|
|
case 2: pMouseNewState[2] = false; break;
|
|
case 3: pMouseNewState[1] = false; break;
|
|
default: break;
|
|
}
|
|
}
|
|
else if (xev.type == MotionNotify)
|
|
{
|
|
olc_UpdateMouse(xev.xmotion.x, xev.xmotion.y);
|
|
}
|
|
else if (xev.type == FocusIn)
|
|
{
|
|
bHasInputFocus = true;
|
|
}
|
|
else if (xev.type == FocusOut)
|
|
{
|
|
bHasInputFocus = false;
|
|
}
|
|
else if (xev.type == ClientMessage)
|
|
{
|
|
bAtomActive = false;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// Handle User Input - Keyboard
|
|
for (int i = 0; i < 256; i++)
|
|
{
|
|
pKeyboardState[i].bPressed = false;
|
|
pKeyboardState[i].bReleased = false;
|
|
|
|
if (pKeyNewState[i] != pKeyOldState[i])
|
|
{
|
|
if (pKeyNewState[i])
|
|
{
|
|
pKeyboardState[i].bPressed = !pKeyboardState[i].bHeld;
|
|
pKeyboardState[i].bHeld = true;
|
|
}
|
|
else
|
|
{
|
|
pKeyboardState[i].bReleased = true;
|
|
pKeyboardState[i].bHeld = false;
|
|
}
|
|
}
|
|
|
|
pKeyOldState[i] = pKeyNewState[i];
|
|
}
|
|
|
|
// Handle User Input - Mouse
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
pMouseState[i].bPressed = false;
|
|
pMouseState[i].bReleased = false;
|
|
|
|
if (pMouseNewState[i] != pMouseOldState[i])
|
|
{
|
|
if (pMouseNewState[i])
|
|
{
|
|
pMouseState[i].bPressed = !pMouseState[i].bHeld;
|
|
pMouseState[i].bHeld = true;
|
|
}
|
|
else
|
|
{
|
|
pMouseState[i].bReleased = true;
|
|
pMouseState[i].bHeld = false;
|
|
}
|
|
}
|
|
|
|
pMouseOldState[i] = pMouseNewState[i];
|
|
}
|
|
|
|
// Cache mouse coordinates so they remain
|
|
// consistent during frame
|
|
nMousePosX = nMousePosXcache;
|
|
nMousePosY = nMousePosYcache;
|
|
|
|
nMouseWheelDelta = nMouseWheelDeltaCache;
|
|
nMouseWheelDeltaCache = 0;
|
|
|
|
#ifdef OLC_DBG_OVERDRAW
|
|
olc::Sprite::nOverdrawCount = 0;
|
|
#endif
|
|
|
|
// Handle Frame Update
|
|
if (!OnUserUpdate(fElapsedTime))
|
|
bAtomActive = false;
|
|
|
|
// Display Graphics
|
|
glViewport(nViewX, nViewY, nViewW, nViewH);
|
|
|
|
// TODO: This is a bit slow (especially in debug, but 100x faster in release mode???)
|
|
// Copy pixel array into texture
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, nScreenWidth, nScreenHeight, GL_RGBA, GL_UNSIGNED_BYTE, pDefaultDrawTarget->GetData());
|
|
|
|
// Display texture on screen
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0.0, 1.0); glVertex3f(-1.0f + (fSubPixelOffsetX), -1.0f + (fSubPixelOffsetY), 0.0f);
|
|
glTexCoord2f(0.0, 0.0); glVertex3f(-1.0f + (fSubPixelOffsetX), 1.0f + (fSubPixelOffsetY), 0.0f);
|
|
glTexCoord2f(1.0, 0.0); glVertex3f( 1.0f + (fSubPixelOffsetX), 1.0f + (fSubPixelOffsetY), 0.0f);
|
|
glTexCoord2f(1.0, 1.0); glVertex3f( 1.0f + (fSubPixelOffsetX), -1.0f + (fSubPixelOffsetY), 0.0f);
|
|
glEnd();
|
|
|
|
// Present Graphics to screen
|
|
#if defined(_WIN32)
|
|
SwapBuffers(glDeviceContext);
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
glXSwapBuffers(olc_Display, olc_Window);
|
|
#endif
|
|
|
|
// Update Title Bar
|
|
fFrameTimer += fElapsedTime;
|
|
nFrameCount++;
|
|
if (fFrameTimer >= 1.0f)
|
|
{
|
|
fFrameTimer -= 1.0f;
|
|
|
|
std::string sTitle = "OneLoneCoder.com - Pixel Game Engine - " + sAppName + " - FPS: " + std::to_string(nFrameCount);
|
|
#if defined(_WIN32)
|
|
#ifdef UNICODE
|
|
SetWindowText(olc_hWnd, ConvertS2W(sTitle).c_str());
|
|
#else
|
|
SetWindowText(olc_hWnd, sTitle.c_str());
|
|
#endif
|
|
#endif
|
|
|
|
#if defined (__linux__)
|
|
XStoreName(olc_Display, olc_Window, sTitle.c_str());
|
|
#endif
|
|
nFrameCount = 0;
|
|
}
|
|
}
|
|
|
|
// Allow the user to free resources if they have overrided the destroy function
|
|
if (OnUserDestroy())
|
|
{
|
|
// User has permitted destroy, so exit and clean up
|
|
}
|
|
else
|
|
{
|
|
// User denied destroy for some reason, so continue running
|
|
bAtomActive = true;
|
|
}
|
|
}
|
|
|
|
#if defined(_WIN32)
|
|
wglDeleteContext(glRenderContext);
|
|
PostMessage(olc_hWnd, WM_DESTROY, 0, 0);
|
|
#endif
|
|
|
|
#if defined (__linux__)
|
|
glXMakeCurrent(olc_Display, None, NULL);
|
|
glXDestroyContext(olc_Display, glDeviceContext);
|
|
XDestroyWindow(olc_Display, olc_Window);
|
|
XCloseDisplay(olc_Display);
|
|
#endif
|
|
|
|
}
|
|
|
|
#if defined (_WIN32)
|
|
// Thanks @MaGetzUb for this, which allows sprites to be defined
|
|
// at construction, by initialising the GDI subsystem
|
|
static class GDIPlusStartup
|
|
{
|
|
public:
|
|
GDIPlusStartup()
|
|
{
|
|
Gdiplus::GdiplusStartupInput startupInput;
|
|
ULONG_PTR token;
|
|
Gdiplus::GdiplusStartup(&token, &startupInput, NULL);
|
|
};
|
|
} gdistartup;
|
|
#endif
|
|
|
|
|
|
void PixelGameEngine::olc_ConstructFontSheet()
|
|
{
|
|
std::string data;
|
|
data += "?Q`0001oOch0o01o@F40o0<AGD4090LAGD<090@A7ch0?00O7Q`0600>00000000";
|
|
data += "O000000nOT0063Qo4d8>?7a14Gno94AA4gno94AaOT0>o3`oO400o7QN00000400";
|
|
data += "Of80001oOg<7O7moBGT7O7lABET024@aBEd714AiOdl717a_=TH013Q>00000000";
|
|
data += "720D000V?V5oB3Q_HdUoE7a9@DdDE4A9@DmoE4A;Hg]oM4Aj8S4D84@`00000000";
|
|
data += "OaPT1000Oa`^13P1@AI[?g`1@A=[OdAoHgljA4Ao?WlBA7l1710007l100000000";
|
|
data += "ObM6000oOfMV?3QoBDD`O7a0BDDH@5A0BDD<@5A0BGeVO5ao@CQR?5Po00000000";
|
|
data += "Oc``000?Ogij70PO2D]??0Ph2DUM@7i`2DTg@7lh2GUj?0TO0C1870T?00000000";
|
|
data += "70<4001o?P<7?1QoHg43O;`h@GT0@:@LB@d0>:@hN@L0@?aoN@<0O7ao0000?000";
|
|
data += "OcH0001SOglLA7mg24TnK7ln24US>0PL24U140PnOgl0>7QgOcH0K71S0000A000";
|
|
data += "00H00000@Dm1S007@DUSg00?OdTnH7YhOfTL<7Yh@Cl0700?@Ah0300700000000";
|
|
data += "<008001QL00ZA41a@6HnI<1i@FHLM81M@@0LG81?O`0nC?Y7?`0ZA7Y300080000";
|
|
data += "O`082000Oh0827mo6>Hn?Wmo?6HnMb11MP08@C11H`08@FP0@@0004@000000000";
|
|
data += "00P00001Oab00003OcKP0006@6=PMgl<@440MglH@000000`@000001P00000000";
|
|
data += "Ob@8@@00Ob@8@Ga13R@8Mga172@8?PAo3R@827QoOb@820@0O`0007`0000007P0";
|
|
data += "O`000P08Od400g`<3V=P0G`673IP0`@3>1`00P@6O`P00g`<O`000GP800000000";
|
|
data += "?P9PL020O`<`N3R0@E4HC7b0@ET<ATB0@@l6C4B0O`H3N7b0?P01L3R000000020";
|
|
|
|
fontSprite = new olc::Sprite(128, 48);
|
|
int px = 0, py = 0;
|
|
for (int b = 0; b < 1024; b += 4)
|
|
{
|
|
uint32_t sym1 = (uint32_t)data[b + 0] - 48;
|
|
uint32_t sym2 = (uint32_t)data[b + 1] - 48;
|
|
uint32_t sym3 = (uint32_t)data[b + 2] - 48;
|
|
uint32_t sym4 = (uint32_t)data[b + 3] - 48;
|
|
uint32_t r = sym1 << 18 | sym2 << 12 | sym3 << 6 | sym4;
|
|
|
|
for (int i = 0; i < 24; i++)
|
|
{
|
|
int k = r & (1 << i) ? 255 : 0;
|
|
fontSprite->SetPixel(px, py, olc::Pixel(k, k, k, k));
|
|
if (++py == 48) { px++; py = 0; }
|
|
}
|
|
}
|
|
}
|
|
|
|
#if defined(_WIN32)
|
|
HWND PixelGameEngine::olc_WindowCreate()
|
|
{
|
|
WNDCLASS wc;
|
|
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
|
|
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
|
|
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
|
|
wc.hInstance = GetModuleHandle(nullptr);
|
|
wc.lpfnWndProc = olc_WindowEvent;
|
|
wc.cbClsExtra = 0;
|
|
wc.cbWndExtra = 0;
|
|
wc.lpszMenuName = nullptr;
|
|
wc.hbrBackground = nullptr;
|
|
#ifdef UNICODE
|
|
wc.lpszClassName = L"OLC_PIXEL_GAME_ENGINE";
|
|
#else
|
|
wc.lpszClassName = "OLC_PIXEL_GAME_ENGINE";
|
|
#endif
|
|
|
|
RegisterClass(&wc);
|
|
|
|
nWindowWidth = (LONG)nScreenWidth * (LONG)nPixelWidth;
|
|
nWindowHeight = (LONG)nScreenHeight * (LONG)nPixelHeight;
|
|
|
|
// Define window furniture
|
|
DWORD dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
|
|
DWORD dwStyle = WS_CAPTION | WS_SYSMENU | WS_VISIBLE | WS_THICKFRAME;
|
|
|
|
int nCosmeticOffset = 30;
|
|
nViewW = nWindowWidth;
|
|
nViewH = nWindowHeight;
|
|
|
|
// Handle Fullscreen
|
|
if (bFullScreen)
|
|
{
|
|
dwExStyle = 0;
|
|
dwStyle = WS_VISIBLE | WS_POPUP;
|
|
nCosmeticOffset = 0;
|
|
HMONITOR hmon = MonitorFromWindow(olc_hWnd, MONITOR_DEFAULTTONEAREST);
|
|
MONITORINFO mi = { sizeof(mi) };
|
|
if (!GetMonitorInfo(hmon, &mi)) return NULL;
|
|
nWindowWidth = mi.rcMonitor.right;
|
|
nWindowHeight = mi.rcMonitor.bottom;
|
|
|
|
|
|
}
|
|
|
|
olc_UpdateViewport();
|
|
|
|
// Keep client size as requested
|
|
RECT rWndRect = { 0, 0, nWindowWidth, nWindowHeight };
|
|
AdjustWindowRectEx(&rWndRect, dwStyle, FALSE, dwExStyle);
|
|
int width = rWndRect.right - rWndRect.left;
|
|
int height = rWndRect.bottom - rWndRect.top;
|
|
|
|
#ifdef UNICODE
|
|
olc_hWnd = CreateWindowEx(dwExStyle, L"OLC_PIXEL_GAME_ENGINE", L"", dwStyle,
|
|
nCosmeticOffset, nCosmeticOffset, width, height, NULL, NULL, GetModuleHandle(nullptr), this);
|
|
#else
|
|
olc_hWnd = CreateWindowEx(dwExStyle, "OLC_PIXEL_GAME_ENGINE", "", dwStyle,
|
|
nCosmeticOffset, nCosmeticOffset, width, height, NULL, NULL, GetModuleHandle(nullptr), this);
|
|
#endif
|
|
|
|
// Create Keyboard Mapping
|
|
mapKeys[0x00] = Key::NONE;
|
|
mapKeys[0x41] = Key::A; mapKeys[0x42] = Key::B; mapKeys[0x43] = Key::C; mapKeys[0x44] = Key::D; mapKeys[0x45] = Key::E;
|
|
mapKeys[0x46] = Key::F; mapKeys[0x47] = Key::G; mapKeys[0x48] = Key::H; mapKeys[0x49] = Key::I; mapKeys[0x4A] = Key::J;
|
|
mapKeys[0x4B] = Key::K; mapKeys[0x4C] = Key::L; mapKeys[0x4D] = Key::M; mapKeys[0x4E] = Key::N; mapKeys[0x4F] = Key::O;
|
|
mapKeys[0x50] = Key::P; mapKeys[0x51] = Key::Q; mapKeys[0x52] = Key::R; mapKeys[0x53] = Key::S; mapKeys[0x54] = Key::T;
|
|
mapKeys[0x55] = Key::U; mapKeys[0x56] = Key::V; mapKeys[0x57] = Key::W; mapKeys[0x58] = Key::X; mapKeys[0x59] = Key::Y;
|
|
mapKeys[0x5A] = Key::Z;
|
|
|
|
mapKeys[VK_F1] = Key::F1; mapKeys[VK_F2] = Key::F2; mapKeys[VK_F3] = Key::F3; mapKeys[VK_F4] = Key::F4;
|
|
mapKeys[VK_F5] = Key::F5; mapKeys[VK_F6] = Key::F6; mapKeys[VK_F7] = Key::F7; mapKeys[VK_F8] = Key::F8;
|
|
mapKeys[VK_F9] = Key::F9; mapKeys[VK_F10] = Key::F10; mapKeys[VK_F11] = Key::F11; mapKeys[VK_F12] = Key::F12;
|
|
|
|
mapKeys[VK_DOWN] = Key::DOWN; mapKeys[VK_LEFT] = Key::LEFT; mapKeys[VK_RIGHT] = Key::RIGHT; mapKeys[VK_UP] = Key::UP;
|
|
mapKeys[VK_RETURN] = Key::ENTER; //mapKeys[VK_RETURN] = Key::RETURN;
|
|
|
|
mapKeys[VK_BACK] = Key::BACK; mapKeys[VK_ESCAPE] = Key::ESCAPE; mapKeys[VK_RETURN] = Key::ENTER; mapKeys[VK_PAUSE] = Key::PAUSE;
|
|
mapKeys[VK_SCROLL] = Key::SCROLL; mapKeys[VK_TAB] = Key::TAB; mapKeys[VK_DELETE] = Key::DEL; mapKeys[VK_HOME] = Key::HOME;
|
|
mapKeys[VK_END] = Key::END; mapKeys[VK_PRIOR] = Key::PGUP; mapKeys[VK_NEXT] = Key::PGDN; mapKeys[VK_INSERT] = Key::INS;
|
|
mapKeys[VK_SHIFT] = Key::SHIFT; mapKeys[VK_CONTROL] = Key::CTRL;
|
|
mapKeys[VK_SPACE] = Key::SPACE;
|
|
|
|
mapKeys[0x30] = Key::K0; mapKeys[0x31] = Key::K1; mapKeys[0x32] = Key::K2; mapKeys[0x33] = Key::K3; mapKeys[0x34] = Key::K4;
|
|
mapKeys[0x35] = Key::K5; mapKeys[0x36] = Key::K6; mapKeys[0x37] = Key::K7; mapKeys[0x38] = Key::K8; mapKeys[0x39] = Key::K9;
|
|
|
|
mapKeys[VK_NUMPAD0] = Key::NP0; mapKeys[VK_NUMPAD1] = Key::NP1; mapKeys[VK_NUMPAD2] = Key::NP2; mapKeys[VK_NUMPAD3] = Key::NP3; mapKeys[VK_NUMPAD4] = Key::NP4;
|
|
mapKeys[VK_NUMPAD5] = Key::NP5; mapKeys[VK_NUMPAD6] = Key::NP6; mapKeys[VK_NUMPAD7] = Key::NP7; mapKeys[VK_NUMPAD8] = Key::NP8; mapKeys[VK_NUMPAD9] = Key::NP9;
|
|
mapKeys[VK_MULTIPLY] = Key::NP_MUL; mapKeys[VK_ADD] = Key::NP_ADD; mapKeys[VK_DIVIDE] = Key::NP_DIV; mapKeys[VK_SUBTRACT] = Key::NP_SUB; mapKeys[VK_DECIMAL] = Key::NP_DECIMAL;
|
|
|
|
return olc_hWnd;
|
|
}
|
|
|
|
bool PixelGameEngine::olc_OpenGLCreate()
|
|
{
|
|
// Create Device Context
|
|
glDeviceContext = GetDC(olc_hWnd);
|
|
PIXELFORMATDESCRIPTOR pfd =
|
|
{
|
|
sizeof(PIXELFORMATDESCRIPTOR), 1,
|
|
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
|
|
PFD_TYPE_RGBA, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
PFD_MAIN_PLANE, 0, 0, 0, 0
|
|
};
|
|
|
|
int pf = 0;
|
|
if (!(pf = ChoosePixelFormat(glDeviceContext, &pfd))) return false;
|
|
SetPixelFormat(glDeviceContext, pf, &pfd);
|
|
|
|
if (!(glRenderContext = wglCreateContext(glDeviceContext))) return false;
|
|
wglMakeCurrent(glDeviceContext, glRenderContext);
|
|
|
|
glViewport(nViewX, nViewY, nViewW, nViewH);
|
|
|
|
// Remove Frame cap
|
|
wglSwapInterval = (wglSwapInterval_t*)wglGetProcAddress("wglSwapIntervalEXT");
|
|
if (wglSwapInterval && !bEnableVSYNC) wglSwapInterval(0);
|
|
return true;
|
|
}
|
|
|
|
// Windows Event Handler
|
|
LRESULT CALLBACK PixelGameEngine::olc_WindowEvent(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
static PixelGameEngine *sge;
|
|
switch (uMsg)
|
|
{
|
|
case WM_CREATE: sge = (PixelGameEngine*)((LPCREATESTRUCT)lParam)->lpCreateParams; return 0;
|
|
case WM_MOUSEMOVE:
|
|
{
|
|
uint16_t x = lParam & 0xFFFF; // Thanks @ForAbby (Discord)
|
|
uint16_t y = (lParam >> 16) & 0xFFFF;
|
|
int16_t ix = *(int16_t*)&x;
|
|
int16_t iy = *(int16_t*)&y;
|
|
sge->olc_UpdateMouse(ix, iy);
|
|
return 0;
|
|
}
|
|
case WM_SIZE:
|
|
{
|
|
sge->olc_UpdateWindowSize(lParam & 0xFFFF, (lParam >> 16) & 0xFFFF);
|
|
return 0;
|
|
}
|
|
case WM_MOUSEWHEEL:
|
|
{
|
|
sge->olc_UpdateMouseWheel(GET_WHEEL_DELTA_WPARAM(wParam));
|
|
return 0;
|
|
}
|
|
case WM_MOUSELEAVE: sge->bHasMouseFocus = false; return 0;
|
|
case WM_SETFOCUS: sge->bHasInputFocus = true; return 0;
|
|
case WM_KILLFOCUS: sge->bHasInputFocus = false; return 0;
|
|
case WM_KEYDOWN: sge->pKeyNewState[mapKeys[wParam]] = true; return 0;
|
|
case WM_KEYUP: sge->pKeyNewState[mapKeys[wParam]] = false; return 0;
|
|
case WM_LBUTTONDOWN:sge->pMouseNewState[0] = true; return 0;
|
|
case WM_LBUTTONUP: sge->pMouseNewState[0] = false; return 0;
|
|
case WM_RBUTTONDOWN:sge->pMouseNewState[1] = true; return 0;
|
|
case WM_RBUTTONUP: sge->pMouseNewState[1] = false; return 0;
|
|
case WM_MBUTTONDOWN:sge->pMouseNewState[2] = true; return 0;
|
|
case WM_MBUTTONUP: sge->pMouseNewState[2] = false; return 0;
|
|
case WM_CLOSE: bAtomActive = false; return 0;
|
|
case WM_DESTROY: PostQuitMessage(0); return 0;
|
|
}
|
|
return DefWindowProc(hWnd, uMsg, wParam, lParam);
|
|
}
|
|
#endif
|
|
|
|
#if defined(__linux__)
|
|
// Do the Linux stuff!
|
|
Display* PixelGameEngine::olc_WindowCreate()
|
|
{
|
|
XInitThreads();
|
|
|
|
// Grab the deafult display and window
|
|
olc_Display = XOpenDisplay(NULL);
|
|
olc_WindowRoot = DefaultRootWindow(olc_Display);
|
|
|
|
// Based on the display capabilities, configure the appearance of the window
|
|
GLint olc_GLAttribs[] = { GLX_RGBA, GLX_DEPTH_SIZE, 24, GLX_DOUBLEBUFFER, None };
|
|
olc_VisualInfo = glXChooseVisual(olc_Display, 0, olc_GLAttribs);
|
|
olc_ColourMap = XCreateColormap(olc_Display, olc_WindowRoot, olc_VisualInfo->visual, AllocNone);
|
|
olc_SetWindowAttribs.colormap = olc_ColourMap;
|
|
|
|
// Register which events we are interested in receiving
|
|
olc_SetWindowAttribs.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | FocusChangeMask | StructureNotifyMask;
|
|
|
|
// Create the window
|
|
olc_Window = XCreateWindow(olc_Display, olc_WindowRoot, 30, 30, nScreenWidth * nPixelWidth, nScreenHeight * nPixelHeight, 0, olc_VisualInfo->depth, InputOutput, olc_VisualInfo->visual, CWColormap | CWEventMask, &olc_SetWindowAttribs);
|
|
|
|
Atom wmDelete = XInternAtom(olc_Display, "WM_DELETE_WINDOW", true);
|
|
XSetWMProtocols(olc_Display, olc_Window, &wmDelete, 1);
|
|
|
|
XMapWindow(olc_Display, olc_Window);
|
|
XStoreName(olc_Display, olc_Window, "OneLoneCoder.com - Pixel Game Engine");
|
|
|
|
if (bFullScreen) // Thanks DragonEye, again :D
|
|
{
|
|
Atom wm_state;
|
|
Atom fullscreen;
|
|
wm_state = XInternAtom(olc_Display, "_NET_WM_STATE", False);
|
|
fullscreen = XInternAtom(olc_Display, "_NET_WM_STATE_FULLSCREEN", False);
|
|
XEvent xev{ 0 };
|
|
xev.type = ClientMessage;
|
|
xev.xclient.window = olc_Window;
|
|
xev.xclient.message_type = wm_state;
|
|
xev.xclient.format = 32;
|
|
xev.xclient.data.l[0] = (bFullScreen ? 1 : 0); // the action (0: off, 1: on, 2: toggle)
|
|
xev.xclient.data.l[1] = fullscreen; // first property to alter
|
|
xev.xclient.data.l[2] = 0; // second property to alter
|
|
xev.xclient.data.l[3] = 0; // source indication
|
|
XMapWindow(olc_Display, olc_Window);
|
|
XSendEvent(olc_Display, DefaultRootWindow(olc_Display), False,
|
|
SubstructureRedirectMask | SubstructureNotifyMask, &xev);
|
|
XFlush(olc_Display);
|
|
XWindowAttributes gwa;
|
|
XGetWindowAttributes(olc_Display, olc_Window, &gwa);
|
|
nWindowWidth = gwa.width;
|
|
nWindowHeight = gwa.height;
|
|
olc_UpdateViewport();
|
|
}
|
|
|
|
// Create Keyboard Mapping
|
|
mapKeys[0x00] = Key::NONE;
|
|
mapKeys[0x61] = Key::A; mapKeys[0x62] = Key::B; mapKeys[0x63] = Key::C; mapKeys[0x64] = Key::D; mapKeys[0x65] = Key::E;
|
|
mapKeys[0x66] = Key::F; mapKeys[0x67] = Key::G; mapKeys[0x68] = Key::H; mapKeys[0x69] = Key::I; mapKeys[0x6A] = Key::J;
|
|
mapKeys[0x6B] = Key::K; mapKeys[0x6C] = Key::L; mapKeys[0x6D] = Key::M; mapKeys[0x6E] = Key::N; mapKeys[0x6F] = Key::O;
|
|
mapKeys[0x70] = Key::P; mapKeys[0x71] = Key::Q; mapKeys[0x72] = Key::R; mapKeys[0x73] = Key::S; mapKeys[0x74] = Key::T;
|
|
mapKeys[0x75] = Key::U; mapKeys[0x76] = Key::V; mapKeys[0x77] = Key::W; mapKeys[0x78] = Key::X; mapKeys[0x79] = Key::Y;
|
|
mapKeys[0x7A] = Key::Z;
|
|
|
|
mapKeys[XK_F1] = Key::F1; mapKeys[XK_F2] = Key::F2; mapKeys[XK_F3] = Key::F3; mapKeys[XK_F4] = Key::F4;
|
|
mapKeys[XK_F5] = Key::F5; mapKeys[XK_F6] = Key::F6; mapKeys[XK_F7] = Key::F7; mapKeys[XK_F8] = Key::F8;
|
|
mapKeys[XK_F9] = Key::F9; mapKeys[XK_F10] = Key::F10; mapKeys[XK_F11] = Key::F11; mapKeys[XK_F12] = Key::F12;
|
|
|
|
mapKeys[XK_Down] = Key::DOWN; mapKeys[XK_Left] = Key::LEFT; mapKeys[XK_Right] = Key::RIGHT; mapKeys[XK_Up] = Key::UP;
|
|
mapKeys[XK_KP_Enter] = Key::ENTER; mapKeys[XK_Return] = Key::ENTER;
|
|
|
|
mapKeys[XK_BackSpace] = Key::BACK; mapKeys[XK_Escape] = Key::ESCAPE; mapKeys[XK_Linefeed] = Key::ENTER; mapKeys[XK_Pause] = Key::PAUSE;
|
|
mapKeys[XK_Scroll_Lock] = Key::SCROLL; mapKeys[XK_Tab] = Key::TAB; mapKeys[XK_Delete] = Key::DEL; mapKeys[XK_Home] = Key::HOME;
|
|
mapKeys[XK_End] = Key::END; mapKeys[XK_Page_Up] = Key::PGUP; mapKeys[XK_Page_Down] = Key::PGDN; mapKeys[XK_Insert] = Key::INS;
|
|
mapKeys[XK_Shift_L] = Key::SHIFT; mapKeys[XK_Shift_R] = Key::SHIFT; mapKeys[XK_Control_L] = Key::CTRL; mapKeys[XK_Control_R] = Key::CTRL;
|
|
mapKeys[XK_space] = Key::SPACE;
|
|
|
|
mapKeys[XK_0] = Key::K0; mapKeys[XK_1] = Key::K1; mapKeys[XK_2] = Key::K2; mapKeys[XK_3] = Key::K3; mapKeys[XK_4] = Key::K4;
|
|
mapKeys[XK_5] = Key::K5; mapKeys[XK_6] = Key::K6; mapKeys[XK_7] = Key::K7; mapKeys[XK_8] = Key::K8; mapKeys[XK_9] = Key::K9;
|
|
|
|
mapKeys[XK_KP_0] = Key::NP0; mapKeys[XK_KP_1] = Key::NP1; mapKeys[XK_KP_2] = Key::NP2; mapKeys[XK_KP_3] = Key::NP3; mapKeys[XK_KP_4] = Key::NP4;
|
|
mapKeys[XK_KP_5] = Key::NP5; mapKeys[XK_KP_6] = Key::NP6; mapKeys[XK_KP_7] = Key::NP7; mapKeys[XK_KP_8] = Key::NP8; mapKeys[XK_KP_9] = Key::NP9;
|
|
mapKeys[XK_KP_Multiply] = Key::NP_MUL; mapKeys[XK_KP_Add] = Key::NP_ADD; mapKeys[XK_KP_Divide] = Key::NP_DIV; mapKeys[XK_KP_Subtract] = Key::NP_SUB; mapKeys[XK_KP_Decimal] = Key::NP_DECIMAL;
|
|
|
|
return olc_Display;
|
|
}
|
|
|
|
bool PixelGameEngine::olc_OpenGLCreate()
|
|
{
|
|
glDeviceContext = glXCreateContext(olc_Display, olc_VisualInfo, nullptr, GL_TRUE);
|
|
glXMakeCurrent(olc_Display, olc_Window, glDeviceContext);
|
|
|
|
XWindowAttributes gwa;
|
|
XGetWindowAttributes(olc_Display, olc_Window, &gwa);
|
|
glViewport(0, 0, gwa.width, gwa.height);
|
|
|
|
glSwapIntervalEXT = nullptr;
|
|
glSwapIntervalEXT = (glSwapInterval_t*)glXGetProcAddress((unsigned char*)"glXSwapIntervalEXT");
|
|
|
|
if (glSwapIntervalEXT == nullptr && !bEnableVSYNC)
|
|
{
|
|
printf("NOTE: Could not disable VSYNC, glXSwapIntervalEXT() was not found!\n");
|
|
printf(" Don't worry though, things will still work, it's just the\n");
|
|
printf(" frame rate will be capped to your monitors refresh rate - javidx9\n");
|
|
}
|
|
|
|
if (glSwapIntervalEXT != nullptr && !bEnableVSYNC)
|
|
glSwapIntervalEXT(olc_Display, olc_Window, 0);
|
|
return true;
|
|
}
|
|
|
|
#endif
|
|
|
|
// Need a couple of statics as these are singleton instances
|
|
// read from multiple locations
|
|
std::atomic<bool> PixelGameEngine::bAtomActive{ false };
|
|
std::map<size_t, uint8_t> PixelGameEngine::mapKeys;
|
|
olc::PixelGameEngine* olc::PGEX::pge = nullptr;
|
|
#ifdef OLC_DBG_OVERDRAW
|
|
int olc::Sprite::nOverdrawCount = 0;
|
|
#endif
|
|
//=============================================================
|
|
}
|
|
|
|
#endif
|
|
|