private void ChangeCollisionLayers(MapPropertiesBrush brush, MapProperties properties, CollisionLayer layer)
{
brush.Selection.HasDifferentCollisionLayer = false;
brush.ActiveTileInfo.CollisionLayer = layer;
foreach (var position in brush.Selection.Bounds.allPositionsWithin)
{
if (layer == CollisionLayer.None)
{
var tile = properties.GetTile(new Vector2Int(position.x, position.y));
if (tile != null)
{
tile.CollisionLayer = CollisionLayer.None;
}
}
else
{
var tile = properties.AddOrGetTile(new Vector2Int(position.x, position.y));
tile.CollisionLayer = layer;
}
}
var size = brush.Selection.Bounds.size.x * brush.Selection.Bounds.size.y;
var tileArray = Enumerable.Repeat(brush.CollisionTile, size).ToArray();
var nullArray = new TileBase[size];
for (int index = 0, value = 1; index < CollisionLayerData.LayerCount; index++, value *= 2)
{
if ((value & (int)layer) > 0)
{
var tilemap = properties.AddOrGetCollisionLayer(index);
tilemap.SetTilesBlock(brush.Selection.Bounds, tileArray);
}
else
{
var tilemap = properties.GetCollisionLayer(index);
if (tilemap)
{
tilemap.SetTilesBlock(brush.Selection.Bounds, nullArray);
properties.CheckForCollisionRemoval(tilemap, index);
}
}
}
properties.UpdateBounds();
}
