demo buggy heightmap

demo/inc/states/game/terrain/heightmap.hpp

@@ -0,0 +1,42 @@
+/*
+# ______       ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022, tyra - https://github.com/h4570/tyra
+# Licenced under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+*/
+
+#pragma once
+
+#include "math/vec4.hpp"
+#include "loaders/texture/png_loader.hpp"
+
+using Tyra::Vec4;
+
+namespace Demo {
+
+class Heightmap {
+ public:
+  Heightmap(const float& minHeight, const float& maxHeight, const Vec4& leftUp,
+            const Vec4& rightDown);
+  ~Heightmap();
+
+  const float& getHeightOffset(const Vec4& playerPosition);
+
+  float** map;
+  s16 mapWidth, mapHeight;
+  float minHeight, maxHeight;
+  Vec4 leftUp, rightDown;
+
+ private:
+  float getWidthPercentage(const Vec4& playerPosition);
+  float getHeightPercentage(const Vec4& playerPosition);
+  void allocateMap(const unsigned char* data, const int& width,
+                   const int& height);
+  float getGameHeight(const u8& inputColor, const u8& minColor,
+                      const u8& maxColor);
+};
+
+}  // namespace Demo

demo/inc/states/game/terrain/terrain.hpp

@@ -14,10 +14,12 @@
 #include <renderer/3d/pipeline/static/stapip_options.hpp>
 #include "states/game/renderer/renderer_static_pair.hpp"
 #include <renderer/renderer.hpp>
+#include "./heightmap.hpp"
 
 using Tyra::StaPipOptions;
 using Tyra::StaticMesh;
 using Tyra::TextureRepository;
+using Tyra::Vec4;
 
 namespace Demo {
 
@@ -26,11 +28,12 @@ class Terrain {
   Terrain(TextureRepository* repo);
   ~Terrain();
 
+  Heightmap heightmap;
   StaticMesh* mesh;
   StaPipOptions* options;
   RendererStaticPair* pair;
 
-  void update();
+  float getHeightOffset(const Vec4& playerPosition);
 
  private:
   void allocateOptions();