我正在创建一个需要翻转图像的瓷砖游戏。使用我拥有的代码会产生此错误:
Exception in thread "main" java.lang.IllegalArgumentException: Width (-1) and height (-1) cannot be <= 0
从这一行:
Image newImage = gc.createCompatibleImage(
image.getWidth(null),
image.getHeight(null),
Transparency.BITMASK);
这是我的编码:
public Image getMirrorImage(Image image) {
return getScaledImage(image, -1, 1);
}
private Image getScaledImage(Image image, float x, float y) {
// set up the transform
AffineTransform transform = new AffineTransform();
transform.scale(x, y);
transform.translate(
(x-1) * image.getWidth(null) / 2,
(y-1) * image.getHeight(null) / 2);
// create a transparent (not translucent) image
Image newImage = gc.createCompatibleImage(
image.getWidth(null),
image.getHeight(null),
Transparency.BITMASK);
// draw the transformed image
Graphics2D g = (Graphics2D)newImage.getGraphics();
g.drawImage(image, transform, null);
g.dispose();
return newImage;
}
任何人都可以向我解释我可能需要做哪些不同的事情或如何让它发挥作用吗?非常感谢