Javidx9
4 years ago
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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 v1.00 | |
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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 - 2021 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, ©OneLoneCoder 2019, 2020, 2021 |
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Revisions: |
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1.00: Initial Release |
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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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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::vi2d& 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::vi2d WorldToScreen(const olc::vf2d& vWorldPos) const; |
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virtual olc::vf2d ScreenToWorld(const olc::vi2d& vScreenPos) const; |
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virtual olc::vf2d ScaleToWorld(const olc::vi2d& vScreenSize) const; |
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virtual olc::vi2d 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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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 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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// 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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}; |
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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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void SetRangeX(const bool bRanged, const int32_t nMin = 0, const int32_t nMax = 0); |
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void SetRangeY(const bool bRanged, const int32_t nMin = 0, const int32_t nMax = 0); |
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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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private: |
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bool m_bRangedX = false; |
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int32_t m_nMinRangeX = 0; |
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int32_t m_nMaxRangeX = 0; |
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bool m_bRangedY = false; |
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int32_t m_nMinRangeY = 0; |
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int32_t m_nMaxRangeY = 0; |
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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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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 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::vi2d& 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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} |
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void TransformedView::UpdatePan(const olc::vi2d& vPos) |
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{ |
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if (m_bPanning) |
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{ |
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m_vWorldOffset -= (olc::vf2d(vPos) - m_vStartPan) / m_vWorldScale; |
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m_vStartPan = olc::vf2d(vPos); |
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} |
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} |
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void TransformedView::EndPan(const olc::vi2d& vPos) |
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{ |
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UpdatePan(vPos); |
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m_bPanning = false; |
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} |
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const olc::vf2d& TransformedView::GetWorldOffset() const |
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{ |
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return m_vWorldOffset; |
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} |
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const olc::vf2d& TransformedView::GetWorldScale() const |
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{ |
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return m_vWorldScale; |
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} |
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olc::vi2d TransformedView::WorldToScreen(const olc::vf2d& vWorldPos) const |
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{ |
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olc::vf2d vFloat = ((vWorldPos - m_vWorldOffset) * m_vWorldScale); |
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vFloat = { std::floor(vFloat.x), std::floor(vFloat.y) }; |
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return vFloat; |
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} |
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olc::vf2d TransformedView::ScreenToWorld(const olc::vi2d& vScreenPos) const |
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{ |
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return (olc::vf2d(vScreenPos) / m_vWorldScale) + m_vWorldOffset; |
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} |
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olc::vf2d TransformedView::ScaleToWorld(const olc::vi2d& vScreenSize) const |
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{ |
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return (olc::vf2d(vScreenSize) / m_vWorldScale); |
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} |
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olc::vi2d TransformedView::ScaleToScreen(const olc::vf2d& vWorldSize) const |
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{ |
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olc::vf2d vFloat = vWorldSize * m_vWorldScale;
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return vFloat.floor(); |
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} |
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bool TransformedView::IsPointVisible(const olc::vf2d & vPos) const |
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{ |
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olc::vi2d vScreen = WorldToScreen(vPos); |
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return vScreen.x >= 0 && vScreen.x < m_vViewArea.x&& vScreen.y >= 0 && vScreen.y < m_vViewArea.y; |
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} |
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bool TransformedView::IsRectVisible(const olc::vf2d& vPos, const olc::vf2d& vSize) const |
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{ |
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olc::vi2d vScreenPos = WorldToScreen(vPos); |
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olc::vi2d vScreenSize = vSize * m_vWorldScale; |
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return (vScreenPos.x < 0 + m_vViewArea.x && vScreenPos.x + vScreenSize.x > 0 && vScreenPos.y < m_vViewArea.y&& vScreenPos.y + vScreenSize.y > 0); |
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} |
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bool TransformedView::Draw(float x, float y, olc::Pixel p) |
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{ |
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return Draw({ x, y }, p); |
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} |
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bool TransformedView::Draw(const olc::vf2d & pos, olc::Pixel p) |
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{ |
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return pge->Draw(WorldToScreen(pos), p); |
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} |
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void TransformedView::DrawLine(float x1, float y1, float x2, float y2, olc::Pixel p, uint32_t pattern) |
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{ |
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DrawLine({ x1, y2 }, { x2, y2 }, p, pattern); |
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} |
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void TransformedView::DrawLine(const olc::vf2d & pos1, const olc::vf2d & pos2, olc::Pixel p, uint32_t pattern) |
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{ |
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pge->DrawLine(WorldToScreen(pos1), WorldToScreen(pos2), p, pattern); |
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} |
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void TransformedView::DrawCircle(float x, float y, float radius, olc::Pixel p, uint8_t mask) |
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{ |
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DrawCircle({ x,y }, radius, p, mask); |
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} |
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void TransformedView::DrawCircle(const olc::vf2d & pos, float radius, olc::Pixel p, uint8_t mask) |
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{ |
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pge->DrawCircle(WorldToScreen(pos), int32_t(radius * m_vWorldScale.x), p, mask); |
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} |
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void TransformedView::FillCircle(float x, float y, float radius, olc::Pixel p) |
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{ |
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FillCircle({ x,y }, radius, p); |
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} |
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void TransformedView::FillCircle(const olc::vf2d & pos, float radius, olc::Pixel p) |
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{ |
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pge->FillCircle(WorldToScreen(pos), int32_t(radius * m_vWorldScale.x), p); |
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} |
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void TransformedView::DrawRect(float x, float y, float w, float h, olc::Pixel p) |
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{ |
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DrawRect({ x, y }, { w, h }, p); |
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} |
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|
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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, vStart = WorldToScreen(pos), vEnd = vSpriteScaledSize + vStart; |
||||
olc::vf2d vPixelStep = 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) * 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::DrawStringPropDecal(const olc::vf2d & pos, const std::string & sText, const olc::Pixel col, const olc::vf2d & scale ) |
||||
{ |
||||
pge->DrawStringPropDecal(WorldToScreen(pos), sText, col, scale * m_vWorldScale * m_vRecipPixel); |
||||
} |
||||
|
||||
void TransformedView::FillRectDecal(const olc::vf2d & pos, const olc::vf2d & size, const olc::Pixel col) |
||||
{ |
||||
pge->FillRectDecal(WorldToScreen(pos), (size * m_vWorldScale).ceil(), col); |
||||
} |
||||
|
||||
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) |
||||
{ |
||||
pge->GradientFillRectDecal(WorldToScreen(pos), size * m_vWorldScale, colTL, colBL, colBR, colTR); |
||||
} |
||||
|
||||
void TransformedView::DrawPolygonDecal(olc::Decal* decal, const std::vector<olc::vf2d>& pos, const std::vector<olc::vf2d>& uv, const olc::Pixel tint) |
||||
{ |
||||
std::vector<olc::vf2d> vTransformed(pos.size()); |
||||
for (uint32_t n = 0; n < pos.size(); n++) |
||||
vTransformed[n] = WorldToScreen(pos[n]); |
||||
pge->DrawPolygonDecal(decal, vTransformed, uv, tint); |
||||
} |
||||
|
||||
/////////////////////////////////////////////////////////
|
||||
/////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
TileTransformedView::TileTransformedView(const olc::vi2d& vViewArea, const olc::vi2d& vTileSize)
|
||||
{
|
||||
Initialise(vViewArea, vTileSize); |
||||
} |
||||
|
||||
void TileTransformedView::SetRangeX(const bool bRanged, const int32_t nMin, const int32_t nMax) |
||||
{ |
||||
m_bRangedX = bRanged; |
||||
m_nMinRangeX = nMin; |
||||
m_nMaxRangeX = nMax; |
||||
} |
||||
|
||||
void TileTransformedView::SetRangeY(const bool bRanged, const int32_t nMin, const int32_t nMax) |
||||
{ |
||||
m_bRangedY = bRanged; |
||||
m_nMinRangeY = nMin; |
||||
m_nMaxRangeY = nMax; |
||||
} |
||||
|
||||
olc::vi2d TileTransformedView::GetTopLeftTile() const |
||||
{ |
||||
return ScreenToWorld({ 0,0 }).floor();
|
||||
} |
||||
|
||||
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) }; |
||||
} |
||||
} |
||||
|
||||
#endif |
||||
#endif |
||||
Loading…
Reference in new issue