tilemap_clear

Using this function you can clear/set all the tiles on a given tilemap. You give the tilemap element ID (which you get when you create a tilemap element using layer_tilemap_create() or when you use the function layer_tilemap_get_id()), and then supply the tile data that you wish to clear the layer with. A default value of 0 will clear all the tiles from the layer (essentially making all tiles "empty"), while you can use the dedicated tile_* functions to create your own tile data to clear the tilemap with.

Syntax:

tilemap_clear(tilemap_element_id, tiledata)

Returns:

N/A

Example:

var layer_id = layer_get_id("Forest");
var tile_id = layer_tilemap_get_id(layer_id);
tilemap_clear(tile_id, 0);

The above code gets the ID value of a tilemap created in the room editor, and then clears it using "empty" tiles.