I'm trying to make a walking animation for automatically moving Camels, consisting in 2 sprites I made. The Object should switch out per act() round, but I have no clue how to do this.
Philinö wrote ...
2021/2/18
Animation per act()
You need to save which image is currently being shown. Since it’s only 2 images you can simply use a boolean for that:
Then in your act method, you need to change the current image to the opposite one:
This however will load an image from a file every frame, which, like you might imagine, is not very efficient. The better way to do this is to load both images right away and store them:
// In your class, as a global variable private boolean firstImage = true;
// Inside of act() firstImage = !firstImage; if(firstImage) setImage(„path/to/image1.png“); else setImage(„path/to/image2.png“);
// Globally private GreenfootImage image1 = new GreenfootImage(„path/to/image1.png“); private GreenfootImage image2 = new GreenfootImage(„path/to/image2.png“); // In act() firstImage = !firstImage; if(firstImage) setImage(image1); else setImage(image2); // Or the last two lines shorter setImage(firstImage ? image1 : image2);
RcCookie wrote...
You need to save which image is currently being shown. Since it’s only 2 images you can simply use a boolean for that:
// In your class, as a global variable private boolean firstImage = true;
// Inside of act() firstImage = !firstImage; if(firstImage) setImage(„path/to/image1.png“); else setImage(„path/to/image2.png“);
// Globally private GreenfootImage image1 = new GreenfootImage(„path/to/image1.png“); private GreenfootImage image2 = new GreenfootImage(„path/to/image2.png“); // In act() firstImage = !firstImage; if(firstImage) setImage(image1); else setImage(image2); // Or the last two lines shorter setImage(firstImage ? image1 : image2);
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