Flipping a sprite in GameMaker can be done by adjusting the image_xscale and image_yscale properties of an instance. These properties can be set to -1 to flip a sprite horizontally or vertically.
Here's how you can flip a sprite:
// This will flip the sprite horizontallyimage_xscale=-1;
// This will flip the sprite verticallyimage_yscale=-1;
When flipping sprites, consider the following points:
A value of 1 for image_xscale or image_yscale means no scaling is applied, and the sprite is drawn normally.
A negative value flips the sprite across the corresponding axis.
You can also apply these properties to stretch a sprite by setting them to a value other than -1 or 1.
If you want to flip the sprite back to its original state, set image_xscale and/or image_yscale back to 1.
Finally, if you need to flip the sprite for a specific drawing event rather than altering the instance itself, use the draw_sprite_ext function:
// Draw the sprite flipped horizontally without affecting the instance's actual image_xscaledraw_sprite_ext(sprite_index,image_index,x,y,-1,1,0,c_white,1);// Draw the sprite flipped vertically without affecting the instance's actual image_yscaledraw_sprite_ext(sprite_index,image_index,x,y,1,-1,0,c_white,1);
In this way, flipping is done on-the-fly during rendering and does not change the underlying properties of the instance.