Tilemap#Tilemap

Creates a new Phaser.Tilemap object. The map can either be populated with data from a Tiled JSON file or from a CSV file.

Tiled is a free software package specifically for creating tile maps, and is available from http://www.mapeditor.org

To do this pass the Cache key as the first parameter. When using Tiled data you need only provide the key.
When using CSV data you must provide the key and the tileWidth and tileHeight parameters.
If creating a blank tilemap to be populated later, you can either specify no parameters at all and then use Tilemap.create or pass the map and tile dimensions here.
Note that all Tilemaps use a base tile size to calculate dimensions from, but that a TilemapLayer may have its own unique tile size that overrides it.
A Tile map is rendered to the display using a TilemapLayer. It is not added to the display list directly itself.
A map may have multiple layers. You can perform operations on the map data such as copying, pasting, filling and shuffling the tiles around.