Gets the LayerData index of the given layer within this.layers, or null if an invalid
layer is given.
| name | type | arguments | description |
|---|---|---|---|
| layer | string | number | Phaser.Tilemaps.TilemapLayer | <optional> |
The name of the layer from Tiled, the index of the layer in the map or a Tilemap Layer. If not given will default to the map's current layer index. |
The LayerData index within this.layers.