sprite_add_from_surface(index, surface, x, y, w, h, removeback, smooth);
| Argument | Description |
|---|---|
| index | The index of the sprite to add the new image to. |
| surface | The index of the surface from which the get the image. |
| x | The x position to copy from. |
| y | The y position to copy from. |
| w | The width of the area to be copied (from the x position). |
| h | The height of the area to be copied (from the y position). |
| removeback | Indicates whether to make all pixels with the background colour (left-bottom pixel) transparent. |
| smooth | Indicates whether to smooth the edges. |
Returns: N/A
This function works in exactly the same way as sprite_create_from_surface
only instead of creating a new sprite from the area of the indexed
surface that you select, it adds the defined area of the surface as
a new sub-image to a previously created sprite.
spr_custom = sprite_create_from_surface(surf, 0, 0,
32, 32, true, true, 16, 16);
var i;
for (i = 1; i < 8; i +=1)
{
sprite_add_from_surface(spr_Custom, surf, i, 0,
32, 32, true, true, 16, 16);
}
The above code creates a sprite from the surface indexed in the variable "surf", assigning its index to the variable "spr_Custom", and then uses a for loop to move across the surface and capture various sections which are added into the sprite as sub-images.