// Clears all active tiles on the grid and re-initializes it with fresh randomized tiles from the tile pool.
public void ResetGrid()
{
_grid.Clear(_tilePool);
GameSettings.LevelSettings settings = GameSettings.currentLevelSettings;
_grid.ResizeGrid(settings.gridSize.x + 2, settings.gridSize.y + 2);
int tileCount = settings.gridSize.x * settings.gridSize.y;
SpriteTileInfo[] tiles = GetRandomTilePairs(settings.uniqueTileCount, tileCount);
// Fill the grid leaving cells around the border empty
for (int x = 1; x < _grid.columns - 1; x++)
{
for (int y = 1; y < _grid.rows - 1; y++)
{
int i = (y - 1) * (_grid.columns - 2) + (x - 1);
if (tiles[i] != null)
{
// Grab a new tile from the pool and initalize it
SpriteTile tile = _tilePool.Pop();
tile.SetSpriteTileInfo(tiles[i]);
tile.SetGridNode(_grid[x, y]);
tile.SetHighlighted(false);
tile.SetColliderEnabled(true);
}
}
}
// Make sure we haven't spawned a grid with an unwinnable pattern of tiles
FixUnwinnables();
}
void SetCurrentTile(SpriteTile tile)
{
// Deselect our current tile
if (_currentTile != null)
{
_currentTile.SetHighlighted(false);
}
if (tile != null)
{
tile.SetHighlighted(true);
if (_selectionBox != null)
{
// Activate the selection box
_selectionBox.SetActive(true);
// Set the selection slightly in front of the tile
Vector3 pos = tile.transform.position;
pos.z -= 0.01f;
_selectionBox.transform.position = pos;
// Set the selection to the same size as the tiles grid node
_selectionBox.transform.localScale = tile.gridNode.size / _selectionBoxRenderer.sprite.bounds.size;
}
}
else
{
// We're not selecting anything. Disable the selection box
if (_selectionBox != null)
{
_selectionBox.SetActive(false);
}
}
_currentTile = tile;
}
