Function DrawWaterNoLight

Descent3/procedurals.cpp:932–961

  }
}
void DrawWaterNoLight(int handle) {
  int dx, dy;
  int x, y;
  int offset = 0;
  proc_struct *procedural = GameTextures[handle].procedural;
  int dest_bitmap = procedural->procedural_bitmap;
  uint16_t *dest_data = (uint16_t *)bm_data(dest_bitmap, 0);
  uint16_t *src_data = (uint16_t *)bm_data(GameTextures[handle].bm_handle, 0);
  int16_t *ptr = (int16_t *)procedural->proc1;
  for (y = 0; y < PROC_SIZE; y++) {
    for (x = 0; x < PROC_SIZE; x++, offset++) {
      if (x == PROC_SIZE - 1)
        dx = ptr[offset] - ptr[offset - (PROC_SIZE - 1)];
      else
        dx = ptr[offset] - ptr[offset + 1];
      if (y == PROC_SIZE - 1)
        dy = ptr[offset] - ptr[offset - ((PROC_SIZE - 1) * PROC_SIZE)];
      else
        dy = ptr[offset] - ptr[offset + PROC_SIZE];
      if (dy < 0)
        dy = 0;
      if (dx < 0)
        dx = 0;

      int yoffset = (y + (dy >> 3)) % PROC_SIZE;
      int xoffset = (x + (dx >> 3)) % PROC_SIZE;
      dest_data[offset] = src_data[yoffset * PROC_SIZE + xoffset];
    }
  }
}
void DrawWaterWithLight(int handle, int lightval) {
  int dx, dy;
  int x, y;