break;
case WATER:
terrain[row][col] = new WaterTile(m, row * TILE_SIZE, col * TILE_SIZE);
break;
case TREE:
terrain[row][col] = new TreeTile(m, row * TILE_SIZE, col * TILE_SIZE);
break;
case SAND:
terrain[row][col] = new SandTile(m, row * TILE_SIZE, col * TILE_SIZE);
break;
}