描述

This function can be used to resize a tilemap element. 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 the new width of the tilemap in tile cells.

语法：

tilemap_set_width(tilemap_element_id, width)

参数：

参数	描述
tilemap_element_id	The unique ID value of the tilemap element to set the width of
宽度	The width value (in "cells")

返回：

N/A（无返回值）

例如：

var lay_id = layer_get_id("Tiles_Walls");
var map_id = layer_tilemap_get_id(lay_id);
if tilemap_get_width(map_id) != room_width div 16
    {
    tilemap_set_width(map_id, room_width div 16);
    }

The above code checks the width of a specific tilemap and if it is not the correct size then the width is set.