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/*
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olcPGEX_TransformedView.h
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+-------------------------------------------------------------+
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| OneLoneCoder Pixel Game Engine Extension |
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| Transformed View v1.08 |
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+-------------------------------------------------------------+
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NOTE: UNDER ACTIVE DEVELOPMENT - THERE ARE BUGS/GLITCHES
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What is this?
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~~~~~~~~~~~~~
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This extension provides drawing routines that are compatible with
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changeable world and screen spaces. For example you can pan and
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zoom, and all PGE drawing routines will automatically adopt the current
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world scales and offsets.
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License (OLC-3)
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~~~~~~~~~~~~~~~
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Copyright 2018 - 2022 OneLoneCoder.com
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions or derivations of source code must retain the above
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copyright notice, this list of conditions and the following disclaimer.
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2. Redistributions or derivative works in binary form must reproduce
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the above copyright notice. This list of conditions and the following
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disclaimer must be reproduced in the documentation and/or other
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materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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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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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Author
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~~~~~~
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David Barr, aka javidx9, <EFBFBD>OneLoneCoder 2019, 2020, 2021, 2022
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Revisions:
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1.00: Initial Release
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1.01: Fix for rounding error when scaling to screen
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1.02: Added DrawLineDecal for convenience
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1.03: Removed std::floor from WorldToScreen()
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Added HandlePanAndZoom(...) convenience function
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Removed unused "range" facility in TileTransformView
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1.04: Added DrawPolygonDecal() for arbitrary polygons
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1.05: Clipped DrawSprite() to visible area, massive performance increase
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1.06: Fixed error in DrawLine() - Thanks CraisyDaisyRecords (& Fern)!
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1.07: +DrawRectDecal()
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+GetPGE()
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1.08: +DrawPolygonDecal() with tint overload, akin to PGE
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*/
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#pragma once
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#ifndef OLC_PGEX_TRANSFORMEDVIEW_H
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#define OLC_PGEX_TRANSFORMEDVIEW_H
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#include "olcPixelGameEngine.h"
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namespace olc
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{
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class TransformedView : public olc::PGEX
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{
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public:
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TransformedView() = default;
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virtual void Initialise(const olc::vi2d& vViewArea, const olc::vf2d& vPixelScale = { 1.0f, 1.0f });
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olc::PixelGameEngine* GetPGE();
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public:
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void SetWorldOffset(const olc::vf2d& vOffset);
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void MoveWorldOffset(const olc::vf2d& vDeltaOffset);
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void SetWorldScale(const olc::vf2d& vScale);
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void SetViewArea(const olc::vi2d& vViewArea);
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olc::vf2d GetWorldTL() const;
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olc::vf2d GetWorldBR() const;
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olc::vf2d GetWorldVisibleArea() const;
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void ZoomAtScreenPos(const float fDeltaZoom, const olc::vi2d& vPos);
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void SetZoom(const float fZoom, const olc::vf2d& vPos);
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void StartPan(const olc::vi2d& vPos);
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void UpdatePan(const olc::vi2d& vPos);
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void EndPan(const olc::vi2d& vPos);
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const olc::vf2d& GetWorldOffset() const;
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const olc::vf2d& GetWorldScale() const;
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virtual olc::vf2d WorldToScreen(const olc::vf2d& vWorldPos) const;
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virtual olc::vf2d ScreenToWorld(const olc::vf2d& vScreenPos) const;
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virtual olc::vf2d ScaleToWorld(const olc::vf2d& vScreenSize) const;
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virtual olc::vf2d ScaleToScreen(const olc::vf2d& vWorldSize) const;
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virtual bool IsPointVisible(const olc::vf2d& vPos) const;
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virtual bool IsRectVisible(const olc::vf2d& vPos, const olc::vf2d& vSize) const;
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virtual void HandlePanAndZoom(const int nMouseButton = 2, const float fZoomRate = 0.1f, const bool bPan = true, const bool bZoom = true);
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protected:
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olc::vf2d m_vWorldOffset = { 0.0f, 0.0f };
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olc::vf2d m_vWorldScale = { 1.0f, 1.0f };
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olc::vf2d m_vRecipPixel = { 1.0f, 1.0f };
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olc::vf2d m_vPixelScale = { 1.0f, 1.0f };
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bool m_bPanning = false;
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olc::vf2d m_vStartPan = { 0.0f, 0.0f };
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olc::vi2d m_vViewArea;
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public: // Hopefully, these should look familiar!
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// Plots a single point
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virtual bool Draw(float x, float y, olc::Pixel p = olc::WHITE);
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bool Draw(const olc::vf2d& pos, olc::Pixel p = olc::WHITE);
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// Draws a line from (x1,y1) to (x2,y2)
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void DrawLine(float x1, float y1, float x2, float y2, olc::Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
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void DrawLine(const olc::vf2d& pos1, const olc::vf2d& pos2, olc::Pixel p = olc::WHITE, uint32_t pattern = 0xFFFFFFFF);
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// Draws a circle located at (x,y) with radius
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void DrawCircle(float x, float y, float radius, olc::Pixel p = olc::WHITE, uint8_t mask = 0xFF);
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void DrawCircle(const olc::vf2d& pos, float radius, olc::Pixel p = olc::WHITE, uint8_t mask = 0xFF);
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// Fills a circle located at (x,y) with radius
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void FillCircle(float x, float y, float radius, olc::Pixel p = olc::WHITE);
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void FillCircle(const olc::vf2d& pos, float radius, olc::Pixel p = olc::WHITE);
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// Draws a rectangle at (x,y) to (x+w,y+h)
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void DrawRect(float x, float y, float w, float h, olc::Pixel p = olc::WHITE);
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void DrawRect(const olc::vf2d& pos, const olc::vf2d& size, olc::Pixel p = olc::WHITE);
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// Fills a rectangle at (x,y) to (x+w,y+h)
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void FillRect(float x, float y, float w, float h, olc::Pixel p = olc::WHITE);
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void FillRect(const olc::vf2d& pos, const olc::vf2d& size, olc::Pixel p = olc::WHITE);
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// Draws a triangle between points (x1,y1), (x2,y2) and (x3,y3)
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void DrawTriangle(float x1, float y1, float x2, float y2, float x3, float y3, olc::Pixel p = olc::WHITE);
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void DrawTriangle(const olc::vf2d& pos1, const olc::vf2d& pos2, const olc::vf2d& pos3, olc::Pixel p = olc::WHITE);
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// Flat fills a triangle between points (x1,y1), (x2,y2) and (x3,y3)
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void FillTriangle(float x1, float y1, float x2, float y2, float x3, float y3, olc::Pixel p = olc::WHITE);
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void FillTriangle(const olc::vf2d& pos1, const olc::vf2d& pos2, const olc::vf2d& pos3, olc::Pixel p = olc::WHITE);
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// Draws an entire sprite at location (x,y)
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void DrawSprite(float x, float y, olc::Sprite* sprite, float scalex = 1, float scaley = 1, uint8_t flip = olc::Sprite::NONE);
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void DrawSprite(const olc::vf2d& pos, olc::Sprite* sprite, const olc::vf2d& scale = { 1.0f, 1.0f }, uint8_t flip = olc::Sprite::NONE);
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// Draws an area of a sprite at location (x,y), where the
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// selected area is (ox,oy) to (ox+w,oy+h)
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void DrawPartialSprite(float x, float y, Sprite* sprite, int32_t ox, int32_t oy, int32_t w, int32_t h, float scalex = 1, float scaley = 1, uint8_t flip = olc::Sprite::NONE);
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void DrawPartialSprite(const olc::vf2d& pos, Sprite* sprite, const olc::vi2d& sourcepos, const olc::vi2d& size, const olc::vf2d& scale = { 1.0f, 1.0f }, uint8_t flip = olc::Sprite::NONE);
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void DrawString(float x, float y, const std::string& sText, Pixel col, const olc::vf2d& scale);
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void DrawString(const olc::vf2d& pos, const std::string& sText, const Pixel col, const olc::vf2d& scale);
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// Draws a whole decal, with optional scale and tinting
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void DrawDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
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// Draws a region of a decal, with optional scale and tinting
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void DrawPartialDecal(const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
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void DrawPartialDecal(const olc::vf2d& pos, const olc::vf2d& size, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
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// Draws fully user controlled 4 vertices, pos(pixels), uv(pixels), colours
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void DrawExplicitDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d* uv, const olc::Pixel* col, uint32_t elements = 4);
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//// Draws a decal with 4 arbitrary points, warping the texture to look "correct"
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void DrawWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::Pixel& tint = olc::WHITE);
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void DrawWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::Pixel& tint = olc::WHITE);
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void DrawWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::Pixel& tint = olc::WHITE);
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//// As above, but you can specify a region of a decal source sprite
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void DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
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void DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
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void DrawPartialWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
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//// Draws a decal rotated to specified angle, wit point of rotation offset
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void DrawRotatedDecal(const olc::vf2d& pos, olc::Decal* decal, const float fAngle, const olc::vf2d& center = { 0.0f, 0.0f }, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
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void DrawPartialRotatedDecal(const olc::vf2d& pos, olc::Decal* decal, const float fAngle, const olc::vf2d& center, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f, 1.0f }, const olc::Pixel& tint = olc::WHITE);
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// Draws a multiline string as a decal, with tiniting and scaling
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void DrawStringDecal(const olc::vf2d& pos, const std::string& sText, const olc::Pixel col = olc::WHITE, const olc::vf2d& scale = { 1.0f, 1.0f });
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void DrawShadowStringDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col=olc::WHITE, const olc::Pixel shadowCol=olc::BLACK, const olc::vf2d & scale={1,1}, const float shadowSizeFactor=1);
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void DrawShadowStringPropDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col=olc::WHITE, const olc::Pixel shadowCol=olc::BLACK, const olc::vf2d & scale={1,1}, const float shadowSizeFactor=1);
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void DrawStringPropDecal(const olc::vf2d& pos, const std::string& sText, const olc::Pixel col = olc::WHITE, const olc::vf2d& scale = { 1.0f, 1.0f });
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// Draws a single shaded filled rectangle as a decal
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void FillRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel col = olc::WHITE);
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void DrawRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel col = olc::WHITE);
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// Draws a corner shaded rectangle as a decal
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void GradientFillRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel colTL, const olc::Pixel colBL, const olc::Pixel colBR, const olc::Pixel colTR);
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// Draws an arbitrary convex textured polygon using GPU
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void DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const olc::Pixel tint = olc::WHITE);
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void DrawLineDecal(const olc::vf2d& pos1, const olc::vf2d& pos2, Pixel p = olc::WHITE);
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void DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>&pos, const std::vector<olc::vf2d>&uv, const std::vector<olc::Pixel> &tint);
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void DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const std::vector<olc::Pixel>& colours, const olc::Pixel tint);
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#if defined(OLC_PGEX_SHADER)
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// Shader Specific
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void DrawDecal(olc::Shade& shader, const olc::vf2d & pos, olc::Decal * decal, const olc::vf2d & scale = { 1.0f,1.0f }, const olc::Pixel & tint = olc::WHITE);
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void DrawPartialDecal(olc::Shade& shader, const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale = { 1.0f,1.0f }, const olc::Pixel& tint = olc::WHITE);
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void DrawPartialDecal(olc::Shade& shader, const olc::vf2d& pos, const olc::vf2d& size, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint = olc::WHITE);
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#endif
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};
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class TileTransformedView : public TransformedView
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{
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public:
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TileTransformedView() = default;
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TileTransformedView(const olc::vi2d& vViewArea, const olc::vi2d& vTileSize);
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public:
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olc::vi2d GetTopLeftTile() const;
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olc::vi2d GetBottomRightTile() const;
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olc::vi2d GetVisibleTiles() const;
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olc::vi2d GetTileUnderScreenPos(const olc::vi2d& vPos) const;
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const olc::vi2d GetTileOffset() const;
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};
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}
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#ifdef OLC_PGEX_TRANSFORMEDVIEW
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#undef OLC_PGEX_TRANSFORMEDVIEW
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namespace olc
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{
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olc::PixelGameEngine* TransformedView::GetPGE()
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{
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return pge;
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}
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void TransformedView::Initialise(const olc::vi2d& vViewArea, const olc::vf2d& vPixelScale)
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{
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SetViewArea(vViewArea);
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SetWorldScale(vPixelScale);
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m_vPixelScale = vPixelScale;
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m_vRecipPixel = 1.0f / m_vPixelScale;
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}
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void TransformedView::SetWorldOffset(const olc::vf2d& vOffset)
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{
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m_vWorldOffset = vOffset;
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}
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void TransformedView::MoveWorldOffset(const olc::vf2d& vDeltaOffset)
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{
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m_vWorldOffset += vDeltaOffset;
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}
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void TransformedView::SetWorldScale(const olc::vf2d& vScale)
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{
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m_vWorldScale = vScale;
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}
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void TransformedView::SetViewArea(const olc::vi2d& vViewArea)
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{
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m_vViewArea = vViewArea;
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}
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olc::vf2d TransformedView::GetWorldTL() const
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{
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return TransformedView::ScreenToWorld({ 0,0 });
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}
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olc::vf2d TransformedView::GetWorldBR() const
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{
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return TransformedView::ScreenToWorld(m_vViewArea);
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}
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olc::vf2d TransformedView::GetWorldVisibleArea() const
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{
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return GetWorldBR() - GetWorldTL();
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}
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void TransformedView::ZoomAtScreenPos(const float fDeltaZoom, const olc::vi2d& vPos)
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{
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olc::vf2d vOffsetBeforeZoom = ScreenToWorld(vPos);
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m_vWorldScale *= fDeltaZoom;
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olc::vf2d vOffsetAfterZoom = ScreenToWorld(vPos);
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m_vWorldOffset += vOffsetBeforeZoom - vOffsetAfterZoom;
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}
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void TransformedView::SetZoom(const float fZoom, const olc::vf2d& vPos)
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{
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olc::vf2d vOffsetBeforeZoom = ScreenToWorld(vPos);
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m_vWorldScale = { fZoom, fZoom };
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olc::vf2d vOffsetAfterZoom = ScreenToWorld(vPos);
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m_vWorldOffset += vOffsetBeforeZoom - vOffsetAfterZoom;
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}
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void TransformedView::StartPan(const olc::vi2d& vPos)
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{
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m_bPanning = true;
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m_vStartPan = olc::vf2d(vPos);
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|
|
}
|
|
|
|
|
|
void TransformedView::UpdatePan(const olc::vi2d& vPos)
|
|
|
{
|
|
|
if (m_bPanning)
|
|
|
{
|
|
|
m_vWorldOffset -= (olc::vf2d(vPos) - m_vStartPan) / m_vWorldScale;
|
|
|
m_vStartPan = olc::vf2d(vPos);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void TransformedView::EndPan(const olc::vi2d& vPos)
|
|
|
{
|
|
|
UpdatePan(vPos);
|
|
|
m_bPanning = false;
|
|
|
}
|
|
|
|
|
|
const olc::vf2d& TransformedView::GetWorldOffset() const
|
|
|
{
|
|
|
return m_vWorldOffset;
|
|
|
}
|
|
|
|
|
|
const olc::vf2d& TransformedView::GetWorldScale() const
|
|
|
{
|
|
|
return m_vWorldScale;
|
|
|
}
|
|
|
|
|
|
olc::vf2d TransformedView::WorldToScreen(const olc::vf2d& vWorldPos) const
|
|
|
{
|
|
|
olc::vf2d vFloat = ((vWorldPos - m_vWorldOffset) * m_vWorldScale);
|
|
|
//vFloat = { std::floor(vFloat.x + 0.5f), std::floor(vFloat.y + 0.5f) };
|
|
|
return vFloat;
|
|
|
}
|
|
|
|
|
|
olc::vf2d TransformedView::ScreenToWorld(const olc::vf2d& vScreenPos) const
|
|
|
{
|
|
|
return (olc::vf2d(vScreenPos) / m_vWorldScale) + m_vWorldOffset;
|
|
|
}
|
|
|
|
|
|
olc::vf2d TransformedView::ScaleToWorld(const olc::vf2d& vScreenSize) const
|
|
|
{
|
|
|
return (olc::vf2d(vScreenSize) / m_vWorldScale);
|
|
|
}
|
|
|
|
|
|
olc::vf2d TransformedView::ScaleToScreen(const olc::vf2d& vWorldSize) const
|
|
|
{
|
|
|
//olc::vf2d vFloat = (vWorldSize * m_vWorldScale) + olc::vf2d(0.5f, 0.5f);
|
|
|
//return vFloat.floor();
|
|
|
return (vWorldSize * m_vWorldScale);
|
|
|
}
|
|
|
|
|
|
bool TransformedView::IsPointVisible(const olc::vf2d & vPos) const
|
|
|
{
|
|
|
olc::vi2d vScreen = WorldToScreen(vPos);
|
|
|
return vScreen.x >= 0 && vScreen.x < m_vViewArea.x&& vScreen.y >= 0 && vScreen.y < m_vViewArea.y;
|
|
|
}
|
|
|
|
|
|
bool TransformedView::IsRectVisible(const olc::vf2d& vPos, const olc::vf2d& vSize) const
|
|
|
{
|
|
|
olc::vi2d vScreenPos = WorldToScreen(vPos);
|
|
|
olc::vi2d vScreenSize = vSize * m_vWorldScale;
|
|
|
return (vScreenPos.x < 0 + m_vViewArea.x && vScreenPos.x + vScreenSize.x > 0 && vScreenPos.y < m_vViewArea.y&& vScreenPos.y + vScreenSize.y > 0);
|
|
|
}
|
|
|
|
|
|
void TransformedView::HandlePanAndZoom(const int nMouseButton, const float fZoomRate, const bool bPan, const bool bZoom)
|
|
|
{
|
|
|
const auto& vMousePos = pge->GetMousePos();
|
|
|
if (bPan)
|
|
|
{
|
|
|
if (pge->GetMouse(nMouseButton).bPressed) StartPan(vMousePos);
|
|
|
if (pge->GetMouse(nMouseButton).bHeld) UpdatePan(vMousePos);
|
|
|
if (pge->GetMouse(nMouseButton).bReleased) EndPan(vMousePos);
|
|
|
}
|
|
|
|
|
|
if (bZoom)
|
|
|
{
|
|
|
if (pge->GetMouseWheel() > 0) ZoomAtScreenPos(1.0f + fZoomRate, vMousePos);
|
|
|
if (pge->GetMouseWheel() < 0) ZoomAtScreenPos(1.0f - fZoomRate, vMousePos);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
bool TransformedView::Draw(float x, float y, olc::Pixel p)
|
|
|
{
|
|
|
return Draw({ x, y }, p);
|
|
|
}
|
|
|
|
|
|
bool TransformedView::Draw(const olc::vf2d & pos, olc::Pixel p)
|
|
|
{
|
|
|
return pge->Draw(WorldToScreen(pos), p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawLine(float x1, float y1, float x2, float y2, olc::Pixel p, uint32_t pattern)
|
|
|
{
|
|
|
DrawLine({ x1, y1 }, { x2, y2 }, p, pattern);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawLine(const olc::vf2d & pos1, const olc::vf2d & pos2, olc::Pixel p, uint32_t pattern)
|
|
|
{
|
|
|
pge->DrawLine(WorldToScreen(pos1), WorldToScreen(pos2), p, pattern);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawCircle(float x, float y, float radius, olc::Pixel p, uint8_t mask)
|
|
|
{
|
|
|
DrawCircle({ x,y }, radius, p, mask);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawCircle(const olc::vf2d & pos, float radius, olc::Pixel p, uint8_t mask)
|
|
|
{
|
|
|
pge->DrawCircle(WorldToScreen(pos), int32_t(radius * m_vWorldScale.x), p, mask);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillCircle(float x, float y, float radius, olc::Pixel p)
|
|
|
{
|
|
|
FillCircle({ x,y }, radius, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillCircle(const olc::vf2d & pos, float radius, olc::Pixel p)
|
|
|
{
|
|
|
pge->FillCircle(WorldToScreen(pos), int32_t(radius * m_vWorldScale.x), p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawRect(float x, float y, float w, float h, olc::Pixel p)
|
|
|
{
|
|
|
DrawRect({ x, y }, { w, h }, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawRect(const olc::vf2d & pos, const olc::vf2d & size, olc::Pixel p)
|
|
|
{
|
|
|
pge->DrawRect(WorldToScreen(pos), ((size * m_vWorldScale) + olc::vf2d(0.5f, 0.5f)).floor(), p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillRect(float x, float y, float w, float h, olc::Pixel p)
|
|
|
{
|
|
|
FillRect({ x, y }, { w, h }, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillRect(const olc::vf2d & pos, const olc::vf2d & size, olc::Pixel p)
|
|
|
{
|
|
|
pge->FillRect(WorldToScreen(pos), size * m_vWorldScale, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawTriangle(float x1, float y1, float x2, float y2, float x3, float y3, olc::Pixel p)
|
|
|
{
|
|
|
DrawTriangle({ x1, y1 }, { x2, y2 }, { x3, y3 }, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawTriangle(const olc::vf2d & pos1, const olc::vf2d & pos2, const olc::vf2d & pos3, olc::Pixel p)
|
|
|
{
|
|
|
pge->DrawTriangle(WorldToScreen(pos1), WorldToScreen(pos2), WorldToScreen(pos3), p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillTriangle(float x1, float y1, float x2, float y2, float x3, float y3, olc::Pixel p)
|
|
|
{
|
|
|
FillTriangle({ x1, y1 }, { x2, y2 }, { x3, y3 }, p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::FillTriangle(const olc::vf2d & pos1, const olc::vf2d & pos2, const olc::vf2d & pos3, olc::Pixel p)
|
|
|
{
|
|
|
pge->FillTriangle(WorldToScreen(pos1), WorldToScreen(pos2), WorldToScreen(pos3), p);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawSprite(float x, float y, olc::Sprite* sprite, float scalex, float scaley, uint8_t flip)
|
|
|
{
|
|
|
DrawSprite({ x, y }, sprite, { scalex, scaley }, flip);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawSprite(const olc::vf2d & pos, olc::Sprite * sprite, const olc::vf2d & scale, uint8_t flip)
|
|
|
{
|
|
|
olc::vf2d vSpriteSize = olc::vf2d(float(sprite->width), float(sprite->height));
|
|
|
if (IsRectVisible(pos, vSpriteSize * scale))
|
|
|
{
|
|
|
olc::vf2d vSpriteScaledSize = vSpriteSize * m_vRecipPixel * m_vWorldScale * scale;
|
|
|
olc::vi2d vPixel;
|
|
|
olc::vi2d vSpritePixelStart = WorldToScreen(pos);
|
|
|
olc::vi2d vSpritePixelEnd = WorldToScreen((vSpriteSize * scale) + pos);
|
|
|
|
|
|
olc::vi2d vScreenPixelStart = (vSpritePixelStart).max({0,0});
|
|
|
olc::vi2d vScreenPixelEnd = (vSpritePixelEnd).min({ pge->ScreenWidth(),pge->ScreenHeight() });
|
|
|
|
|
|
olc::vf2d vPixelStep = 1.0f / vSpriteScaledSize;
|
|
|
|
|
|
for (vPixel.y = vScreenPixelStart.y; vPixel.y < vScreenPixelEnd.y; vPixel.y++)
|
|
|
{
|
|
|
for (vPixel.x = vScreenPixelStart.x; vPixel.x < vScreenPixelEnd.x; vPixel.x++)
|
|
|
{
|
|
|
olc::vf2d vSample = olc::vf2d(vPixel - vSpritePixelStart) * vPixelStep;
|
|
|
pge->Draw(vPixel, sprite->Sample(vSample.x, vSample.y));
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void TransformedView::DrawPartialSprite(float x, float y, Sprite* sprite, int32_t ox, int32_t oy, int32_t w, int32_t h, float scalex, float scaley, uint8_t flip)
|
|
|
{
|
|
|
DrawPartialSprite({ x,y }, sprite, { ox,oy }, { w, h }, { scalex, scaley }, flip);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialSprite(const olc::vf2d& pos, Sprite* sprite, const olc::vi2d& sourcepos, const olc::vi2d& size, const olc::vf2d& scale, uint8_t flip)
|
|
|
{
|
|
|
olc::vf2d vSpriteSize = size;
|
|
|
if (IsRectVisible(pos, size * scale))
|
|
|
{
|
|
|
olc::vf2d vSpriteScaledSize = olc::vf2d(size) * m_vRecipPixel * m_vWorldScale * scale;
|
|
|
olc::vf2d vSpritePixelStep = 1.0f / olc::vf2d(float(sprite->width), float(sprite->height));
|
|
|
olc::vi2d vPixel, vStart = WorldToScreen(pos), vEnd = vSpriteScaledSize + vStart;
|
|
|
olc::vf2d vScreenPixelStep = 1.0f / vSpriteScaledSize;
|
|
|
|
|
|
for (vPixel.y = vStart.y; vPixel.y < vEnd.y; vPixel.y++)
|
|
|
{
|
|
|
for (vPixel.x = vStart.x; vPixel.x < vEnd.x; vPixel.x++)
|
|
|
{
|
|
|
olc::vf2d vSample = ((olc::vf2d(vPixel - vStart) * vScreenPixelStep) * size * vSpritePixelStep) + olc::vf2d(sourcepos) * vSpritePixelStep;
|
|
|
pge->Draw(vPixel, sprite->Sample(vSample.x, vSample.y));
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawString(float x, float y, const std::string& sText, Pixel col, const olc::vf2d& scale)
|
|
|
{
|
|
|
DrawString({ x, y }, sText, col, scale);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawString(const olc::vf2d& pos, const std::string& sText, const Pixel col, const olc::vf2d& scale)
|
|
|
{
|
|
|
olc::vf2d vOffset = { 0.0f, 0.0f };
|
|
|
Pixel::Mode m = pge->GetPixelMode();
|
|
|
|
|
|
auto StringPlot = [&col](const int x, const int y, const olc::Pixel& pSource, const olc::Pixel& pDest)
|
|
|
{
|
|
|
return pSource.r > 1 ? col : pDest;
|
|
|
};
|
|
|
|
|
|
pge->SetPixelMode(StringPlot);
|
|
|
|
|
|
for (auto c : sText)
|
|
|
{
|
|
|
if (c == '\n')
|
|
|
{
|
|
|
vOffset.x = 0.0f; vOffset.y += 8.0f * m_vRecipPixel.y * scale.y;
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
int32_t ox = ((c - 32) % 16) * 8;
|
|
|
int32_t oy = ((c - 32) / 16) * 8;
|
|
|
DrawPartialSprite(pos + vOffset, pge->GetFontSprite(), { ox, oy }, { 8, 8 }, scale);
|
|
|
vOffset.x += 8.0f * m_vRecipPixel.x * scale.x;
|
|
|
}
|
|
|
}
|
|
|
pge->SetPixelMode(m);
|
|
|
}
|
|
|
|
|
|
|
|
|
void TransformedView::DrawDecal(const olc::vf2d & pos, olc::Decal * decal, const olc::vf2d & scale, const olc::Pixel & tint)
|
|
|
{
|
|
|
pge->DrawDecal(WorldToScreen(pos), decal, scale * m_vWorldScale * m_vRecipPixel, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialDecal(const olc::vf2d & pos, olc::Decal * decal, const olc::vf2d & source_pos, const olc::vf2d & source_size, const olc::vf2d & scale, const olc::Pixel & tint)
|
|
|
{
|
|
|
pge->DrawPartialDecal(WorldToScreen(pos), decal, source_pos, source_size, scale * m_vWorldScale * m_vRecipPixel, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialDecal(const olc::vf2d & pos, const olc::vf2d & size, olc::Decal * decal, const olc::vf2d & source_pos, const olc::vf2d & source_size, const olc::Pixel & tint)
|
|
|
{
|
|
|
pge->DrawPartialDecal(WorldToScreen(pos), size * m_vWorldScale * m_vRecipPixel, decal, source_pos, source_size, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawExplicitDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d* uv, const olc::Pixel* col, uint32_t elements)
|
|
|
{
|
|
|
std::vector<olc::vf2d> vTransformed(elements);
|
|
|
for (uint32_t n = 0; n < elements; n++)
|
|
|
vTransformed[n] = WorldToScreen(pos[n]);
|
|
|
pge->DrawExplicitDecal(decal, vTransformed.data(), uv, col, elements);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::Pixel& tint)
|
|
|
{
|
|
|
std::array<olc::vf2d, 4> vTransformed =
|
|
|
{ {
|
|
|
WorldToScreen(pos[0]), WorldToScreen(pos[1]),
|
|
|
WorldToScreen(pos[2]), WorldToScreen(pos[3]),
|
|
|
} };
|
|
|
|
|
|
pge->DrawWarpedDecal(decal, vTransformed, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::Pixel& tint)
|
|
|
{
|
|
|
DrawWarpedDecal(decal, &pos[0], tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::Pixel& tint)
|
|
|
{
|
|
|
DrawWarpedDecal(decal, pos.data(), tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d(&pos)[4], const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint)
|
|
|
{
|
|
|
DrawPartialWarpedDecal(decal, &pos[0], source_pos, source_size, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialWarpedDecal(olc::Decal* decal, const olc::vf2d* pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint)
|
|
|
{
|
|
|
std::array<olc::vf2d, 4> vTransformed =
|
|
|
{ {
|
|
|
WorldToScreen(pos[0]), WorldToScreen(pos[1]),
|
|
|
WorldToScreen(pos[2]), WorldToScreen(pos[3]),
|
|
|
} };
|
|
|
|
|
|
pge->DrawPartialWarpedDecal(decal, vTransformed, source_pos, source_size, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialWarpedDecal(olc::Decal* decal, const std::array<olc::vf2d, 4>& pos, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint)
|
|
|
{
|
|
|
DrawPartialWarpedDecal(decal, pos.data(), source_pos, source_size, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawRotatedDecal(const olc::vf2d & pos, olc::Decal * decal, const float fAngle, const olc::vf2d & center, const olc::vf2d & scale, const olc::Pixel & tint)
|
|
|
{
|
|
|
pge->DrawRotatedDecal(WorldToScreen(pos), decal, fAngle, center, scale * m_vWorldScale * m_vRecipPixel, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawPartialRotatedDecal(const olc::vf2d & pos, olc::Decal * decal, const float fAngle, const olc::vf2d & center, const olc::vf2d & source_pos, const olc::vf2d & source_size, const olc::vf2d & scale, const olc::Pixel & tint)
|
|
|
{
|
|
|
pge->DrawPartialRotatedDecal(WorldToScreen(pos), decal, fAngle, center, source_pos, source_size, scale * m_vWorldScale * m_vRecipPixel, tint);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawStringDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col, const olc::vf2d & scale)
|
|
|
{
|
|
|
pge->DrawStringDecal(WorldToScreen(pos), sText, col, scale * m_vWorldScale * m_vRecipPixel);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawShadowStringDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col, const olc::Pixel shadowCol, const olc::vf2d & scale, const float shadowSizeFactor)
|
|
|
{
|
|
|
pge->DrawShadowStringDecal(WorldToScreen(pos), sText, col, shadowCol, scale * m_vWorldScale * m_vRecipPixel, shadowSizeFactor);
|
|
|
}
|
|
|
|
|
|
void TransformedView::DrawShadowStringPropDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col, const olc::Pixel shadowCol, const olc::vf2d & scale, const float shadowSizeFactor)
|
|
|
{
|
|
|
pge->DrawShadowStringPropDecal(WorldToScreen(pos), sText, col, shadowCol, scale * m_vWorldScale * m_vRecipPixel, shadowSizeFactor);
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}
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void TransformedView::DrawStringPropDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col, const olc::vf2d & scale )
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{
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pge->DrawStringPropDecal(WorldToScreen(pos), sText, col, scale * m_vWorldScale * m_vRecipPixel);
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}
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void TransformedView::FillRectDecal(const olc::vf2d & pos, const olc::vf2d & size, const olc::Pixel col)
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{
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pge->FillRectDecal(WorldToScreen(pos), (size * m_vWorldScale).ceil(), col);
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}
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void TransformedView::DrawRectDecal(const olc::vf2d& pos, const olc::vf2d& size, const olc::Pixel col)
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{
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pge->DrawRectDecal(WorldToScreen(pos), (size * m_vWorldScale).ceil(), col);
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}
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void TransformedView::DrawLineDecal(const olc::vf2d& pos1, const olc::vf2d& pos2, Pixel p)
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{
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pge->DrawLineDecal(WorldToScreen(pos1), WorldToScreen(pos2), p);
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}
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void TransformedView::GradientFillRectDecal(const olc::vf2d & pos, const olc::vf2d & size, const olc::Pixel colTL, const olc::Pixel colBL, const olc::Pixel colBR, const olc::Pixel colTR)
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{
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pge->GradientFillRectDecal(WorldToScreen(pos), size * m_vWorldScale, colTL, colBL, colBR, colTR);
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}
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void TransformedView::DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const olc::Pixel tint)
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{
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std::vector<olc::vf2d> vTransformed(pos.size());
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for (uint32_t n = 0; n < pos.size(); n++)
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vTransformed[n] = WorldToScreen(pos[n]);
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pge->DrawPolygonDecal(decal, vTransformed, uv, tint);
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}
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void TransformedView::DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const std::vector<olc::Pixel> &tint)
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{
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std::vector<olc::vf2d> vTransformed(pos.size());
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for (uint32_t n = 0; n < pos.size(); n++)
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vTransformed[n] = WorldToScreen(pos[n]);
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pge->DrawPolygonDecal(decal, vTransformed, uv, tint);
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}
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void TransformedView::DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const std::vector<olc::Pixel>& colours, const olc::Pixel tint)
|
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|
{
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|
std::vector<olc::vf2d> vTransformed(pos.size());
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for (uint32_t n = 0; n < pos.size(); n++)
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vTransformed[n] = WorldToScreen(pos[n]);
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pge->DrawPolygonDecal(decal, vTransformed, uv, colours, tint);
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}
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#if defined (OLC_PGEX_SHADER)
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void TransformedView::DrawDecal(olc::Shade &shade, const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& scale, const olc::Pixel& tint)
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|
{
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|
shade.DrawDecal(WorldToScreen(pos), decal, scale * m_vWorldScale * m_vRecipPixel, tint);
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}
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void TransformedView::DrawPartialDecal(olc::Shade& shade, const olc::vf2d& pos, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::vf2d& scale, const olc::Pixel& tint)
|
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|
{
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|
shade.DrawPartialDecal(WorldToScreen(pos), decal, source_pos, source_size, scale * m_vWorldScale * m_vRecipPixel, tint);
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}
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|
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|
void TransformedView::DrawPartialDecal(olc::Shade& shade, const olc::vf2d& pos, const olc::vf2d& size, olc::Decal* decal, const olc::vf2d& source_pos, const olc::vf2d& source_size, const olc::Pixel& tint)
|
|
|
{
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|
|
shade.DrawPartialDecal(WorldToScreen(pos), size * m_vWorldScale * m_vRecipPixel, decal, source_pos, source_size, tint);
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|
}
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|
#endif
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/////////////////////////////////////////////////////////
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|
|
/////////////////////////////////////////////////////////
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TileTransformedView::TileTransformedView(const olc::vi2d& vViewArea, const olc::vi2d& vTileSize)
|
|
|
{
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|
|
Initialise(vViewArea, vTileSize);
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|
|
}
|
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|
olc::vi2d TileTransformedView::GetTopLeftTile() const
|
|
|
{
|
|
|
return ScreenToWorld({ 0,0 }).floor();
|
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|
}
|
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|
olc::vi2d TileTransformedView::GetBottomRightTile() const
|
|
|
{
|
|
|
return ScreenToWorld(m_vViewArea).ceil();
|
|
|
}
|
|
|
|
|
|
olc::vi2d TileTransformedView::GetVisibleTiles() const
|
|
|
{
|
|
|
return GetBottomRightTile() - GetTopLeftTile();
|
|
|
}
|
|
|
|
|
|
olc::vi2d TileTransformedView::GetTileUnderScreenPos(const olc::vi2d& vPos) const
|
|
|
{
|
|
|
return ScreenToWorld(vPos).floor();
|
|
|
}
|
|
|
|
|
|
const olc::vi2d TileTransformedView::GetTileOffset() const
|
|
|
{
|
|
|
return { int32_t((m_vWorldOffset.x - std::floor(m_vWorldOffset.x)) * m_vWorldScale.x),
|
|
|
int32_t((m_vWorldOffset.y - std::floor(m_vWorldOffset.y)) * m_vWorldScale.y) };
|
|
|
}
|
|
|
}
|
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|
#endif
|
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|
#endif
|
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|
