While all the animations in this book will be using GIF images for the sake of expediency, it would be remiss if we did not cover how to import a sprite sheet. A sprite sheet is generally a PNG file with all the frames of animation of an object, such as a character, placed evenly in a grid. We can then quickly cut out each frame of animation in GameMaker to build the individual sprites we need. Let's try this out!
- Let's start by opening a New Project called
Chapter_02. - Create a new Sprite and name it
spr_PlayerSpriteSheet. - Click on the Edit Sprite button to open the Sprite Editor.
- Under File, select Create from Strip, and then open
Chapter 2/Sprites/PlayerSpriteSheet.pngwith nothing selected in the Image Information section. This will open the Loading a strip image editor. - The sprite sheet we just loaded consists of a six frame run cycle. Since we want all the frames, we need to set number of images to
6. - The layout of the sprite sheet has two rows of three images. Set images per row to
3. - Since each image is 64 x 64 pixels in size we need to set image width and image height to
64. The other options for offsets and separation are not necessary for such a small sprite sheet, but they would come in handy if we had a complete set of animations for this character. The setting should look like the following image:
- Click on OK. We now have an animated sprite with smooth edges!
- We are finished with this sprite. Now click the check mark of the Sprite Editor and the Sprite Properties editor and click on the OK button to close it down.
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