Question: How do you flip a sprite in GameMaker?
Answer
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:
Horizontally:
// This will flip the sprite horizontally image_xscale = -1;
Vertically:
// This will flip the sprite vertically image_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_xscale draw_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_yscale draw_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.
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