layer_sprite_get_sprite

描述

This function can be used to get the current sprite index of the sprite element. You give the sprite element ID (which you get when you create a sprite element using layer_sprite_create() or when you use the function layer_sprite_get_id()), and the function will return a real value that represents the sprite index being shown. If the element has no sprite assigned, the function will return -1.

语法：

layer_sprite_get_sprite(sprite_element_id);

参数：

参数	描述
sprite_element_id	The unique ID value of the sprite element to get the information from

返回：

Sprite Index (Real) or -1

例如：

var lay_id = layer_get_id("sprite_sky");
var spr_id = layer_sprite_get_id(lay_id, "Clouds");
if layer_sprite_get_sprite(spr_id) != spr_Clouds
   {
   layer_sprite_change(spr_id, spr_Clouds);
   }

The above code will get the layer ID for the layer named "sprite_sky" and then use that to get the ID of the sprite element on that layer. This ID is then used to check the sprite assigned to the element, setting it to the sprite "spr_Clouds" if it is not already.

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