所以,我试图尝试BufferedImage中特定像素的颜色...
public void LoadImageLevel (BufferedImage image) {
int w = image.getWidth ();
int h = image.getHeight ();
System.out.println (w + " " + h);
for (int xx = 0; xx < h; xx++) {
for (int yy = 0; yy < w; yy++) {
int pixel = image.getRGB (xx, yy);
int red = (pixel >> 16) & 0xff;
int green = (pixel >> 8) & 0xff;
int blue = (pixel) & 0xff;
if (red == 255 && green == 255 && blue == 255) {
handler.addObject (new Block (xx * 32, yy * 32, ObjectID.Block, 32, 32));
}
}
}
}
它是从Main类构造函数调用的:
ImageLoader imageLoader = new ImageLoader ();
level = imageLoader.loadImage ("/levels/level_test.png");
LoadImageLevel (level);
BufferedImage是从我的BufferedImageLoader类加载的:
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
public class ImageLoader {
private BufferedImage image;
public BufferedImage loadImage (String path) {
try {
image = ImageIO.read (getClass ().getResource (path));
} catch (IOException e) {
e.printStackTrace ();
}
return image;
}
}
当我运行项目时,我收到此错误:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Coordinate out of bounds!
at sun.awt.image.ByteInterleavedRaster.getDataElements(Unknown Source)
at java.awt.image.BufferedImage.getRGB(Unknown Source)
at com.main.index.Game.LoadImageLevel(Game.java:190)
at com.main.index.Game.<init>(Game.java:41)
at com.main.index.Game.main(Game.java:206)
第190行是&#34; int pixel = image.getRGB(xx,yy);&#34;,第41行是在构造函数中调用的地方,第206行是主要方法。
提前致谢! ^ _ ^
答案 0 :(得分:2)
问题出在这里:
int pixel = image.getRGB (xx, yy);
应该是:
int pixel = image.getRGB (yy, xx);
答案 1 :(得分:1)
你的xx
从0变为高度,而不是从0变为宽度。你的yy
从0变为宽度,而不是从0变为高度。
答案 2 :(得分:1)
level = imageLoader.loadImage ("/levels/level_test.png");
您使用的图像应小于主窗口的总宽度和高度。在这种情况下,采用RGB值拍摄尺寸为2 ^ X的图片,其中X = 1,2,3,4,5,6,7,8,9 ...... ..
试试这个: 将level_test.png调整为512 x 512像素。
上面是解决方案,因为Array包含边界。
java.lang.ArrayIndexOutOfBoundsException: Coordinate out of bounds!
at sun.awt.image.ByteInterleavedRaster.getDataElements(Unknown Source)