#include <gint/display.h>

#define PLAYER_SIDES 11
#define BG_COLOR 0
#define LEVEL_WIDTH 28
#define DRAW_OFFSET_Y -24
#define DRAW_OFFSET_X -27

extern image_t img_player; //player texture, 12x12

void draw_player(int old_x, int old_y, int x, int y)
{
  if (old_x != x || old_y != y)
  {
    drect(old_x + DRAW_OFFSET_X, old_y + DRAW_OFFSET_Y,
      (old_x + PLAYER_SIDES) + DRAW_OFFSET_X,
      (old_y + PLAYER_SIDES) + DRAW_OFFSET_Y, BG_COLOR);
    dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_player);
  }
}

void draw_level(char level[], char upgrades[])
{
  dclear(BG_COLOR);
  extern image_t img_ground; //ground texture, 16x16
  extern image_t img_spike; //spike texture, 16x16
  extern image_t img_elevator; //elevator texture, 16x16
  extern image_t img_ice; //ice texture, 16x8
  extern image_t img_glue; //glue texture, 16x8
  extern image_t img_jitem; //jump item texture, 16x16
  unsigned int i = 0;
  unsigned int x = 0;
  unsigned int y = 0;
  while (i != LEVEL_WIDTH*17)
  {
    switch (level[i])
    {
      case '0':
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_ground);
        break;
      case 'v':
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_spike);
        break;
      case '^':
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_elevator);
        break;
      case '~':
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_ground);
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_ice);
        break;
      case '#':
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_ground);
        dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_glue);
        break;
      case 'j':
        if (!upgrades[0])
          dimage(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y, &img_jitem);
        else level[i] = '.';
        break;
    }
    x += 16;
    if (x == 16*LEVEL_WIDTH)
    {
      x = 0;
      y += 16;
    }
    i++;
  }
}

void erase_tile(int x, int y, char level[])
{
  x = (int)(x/16);
  y = (int)(y/16);
  level[x + y * 28] = '.';
  x *= 16;
  y *= 16;
  drect(x + DRAW_OFFSET_X, y + DRAW_OFFSET_Y,
    x + 15 + DRAW_OFFSET_X,
    y + 15 + DRAW_OFFSET_Y, BG_COLOR);
}

void draw_upgrade_message(char item)
{
  switch (item)
  {
    case 'j':
    {
      extern image_t img_jitem_popup;
      dimage(96 + DRAW_OFFSET_X, 160 + DRAW_OFFSET_Y, &img_jitem_popup);
      break;
    }
  }
}