draw_sprite_ext

Draws a sprite at a given position, with customizable scaling, rotation, blend and alpha.

语法:

draw_sprite_ext( sprite, subimg, x, y, xscale, yscale, rot, colour, alpha );


参数 描述
sprite The index of the sprite to draw.
subimg The subimg (frame) of the sprite to draw (image_index or -1 correlate to the current frame of animation in the object).
x The x coordinate of where to draw the sprite.
y The y coordinate of where to draw the sprite.
x轴缩放 The horizontal scaling of the sprite, as a multiplier: 1 = normal scaling, 0.5 is half etc...
y轴缩放 The vertical scaling of the sprite as a multiplier: 1 = normal scaling, 0.5 is half etc...
rot The rotation of the sprite. 0=right way up, 90=rotated 90 degrees counter-clockwise etc...
colour The colour with which to blend the sprite. c_white is to display it normally.
alpha The alpha of the sprite (from 0 to 1 where 0 is transparent and 1 opaque).


返回: N/A(无返回值)


描述

This function will draw the given sprite as in the function draw_sprite but with additional options to change the scale, blending, rotation and alpha of the sprite being drawn. Changing these values does not modify the resource in any way (only how it is drawn), and you can use any of the available sprite variables instead of direct values for all the arguments in the function. 下图展示了不同的值如何对绘制精灵生效:The image below illustrates how different values affect the drawing of the sprite:

注意:启用WebGL时,建议仅为HTML5目标使用颜色混合,但如果未启用混合颜色,则仍可设置混合颜色,并且它将正常混合精灵。任何形式的混合会创建一个副本精灵储存在缓存,当需要时可供使用。如果你混合多种颜色,并且没有启用WebGL,将会降低你的游戏性能。如果你不希望使用WebGL,可以设置字体缓存大小以尝试使用函数 sprite_set_cache_size </ t2> </ a1>来限制此值。


例如:

draw_sprite_ext(sprite_index, image_index, x, y, image_xscale, image_yscale, image_angle, image_blend, image_alpha);

This will draw the instances assigned sprite with all its default values (essentially the same as using draw_self).


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