#pragma once

#include <stdint.h>

#include "datatypes.cpp"
#include "helpers.cpp"

namespace UwU {
  class Tilemap {
    public:
      Tilemap() {
        this->tilemap = new uint16_t[16384]; // the map of tile positions 128x128 8x8 tiles from a 512x512 bitmap space
      }
      uint16_t* tilemap;

      Coord2 map(uint16_t u, uint16_t v) {
        // returns uv coordinates that point to a specific pixel of a specific tile on a tilesheet buffer
        uint16_t mapX = (u & 0x03f8) >> 3;
        uint16_t mapY = (v & 0x03f8) << 4;
        uint16_t tileIndex = tilemap[mapY + mapX];
        uint16_t u1 = (tileIndex & 0x003f) << 3;
        u1 += (u & 0x0007);
        uint16_t v1 = (tileIndex & 0x0fc0) >> 3;
        v1 += (v & 0x0007);
        return Coord2(u1, v1);
     }
  };
}