/*
# _____        ____   ___
#   |     \/   ____| |___|
#   |     |   |   \  |   |
#-----------------------------------------------------------------------
# Copyright 2022, tyra - https://github.com/h4570/tyra
# Licensed 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) const;

  bool isOutside(const Vec4& position) const;

  float** map;
  s16 mapWidth, mapHeight;
  float minHeight, maxHeight;
  Vec4 leftUp, rightDown;

 private:
  float getWidthPercentage(const Vec4& playerPosition) const;
  float getHeightPercentage(const Vec4& playerPosition) const;
  void allocateMap(const unsigned char* data, const int& width,
                   const int& height);
  float getGameHeight(const u8& inputColor, const u8& minColor,
                      const u8& maxColor) const;
};

}  // namespace Demo