1 files changed, 133 insertions, 0 deletions
diff --git a/tools/Reorganize.java b/tools/Reorganize.java
new file mode 100644
index 00000000..19a17b99
--- /dev/null
+++ b/tools/Reorganize.java
@@ -0,0 +1,133 @@
+/* Reorganize (c) 2006 Bjørn Lindeijer
+ * License: GPL, v2 or later
+ */
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.image.BufferedImage;
+import java.util.Vector;
+import java.io.IOException;
+import java.io.File;
+import javax.imageio.ImageIO;
+
+/**
+ * Very simple tool to reorganize the monster spritesets.
+ */
+public class Reorganize
+{
+    private static final int SPRITE_WIDTH = 60;
+    private static final int SPRITE_HEIGHT = 60;
+    private static final int FRAMES = 10;
+    private static final int DIRECTIONS = 4;
+    private static final int TRANSPARENT = new Color(255, 0, 255).getRGB();
+
+    public static void main(String[] arg)
+    {
+        if (arg.length != 2) {
+            System.out.println("Usage:\n   java Reorganize [source] [target]");
+            return;
+        }
+
+        BufferedImage source = null;
+        try {
+            source = ImageIO.read(new File(arg[0]));
+        } catch (IOException e) {
+            System.out.println("Error while trying to read " + arg[0] + ".");
+            e.printStackTrace();
+            System.exit(1);
+        }
+
+        Rectangle cropRect = null;
+
+        // Read the existing frames into a vector and determine minimal
+        // rectangle that still can contain the contents of any frame.
+        Vector<BufferedImage> spriteSet = new Vector<BufferedImage>();
+        for (int x = 0; x < DIRECTIONS; x++) {
+            for (int y = 0; y < FRAMES; y++) {
+                BufferedImage sprite = source.getSubimage(
+                        x * SPRITE_WIDTH,
+                        y * SPRITE_HEIGHT,
+                        SPRITE_WIDTH,
+                        SPRITE_HEIGHT);
+
+                spriteSet.add(sprite);
+
+                Rectangle frameCropRect = determineCropRect(sprite);
+
+                if (cropRect == null) {
+                    cropRect = frameCropRect;
+                } else {
+                    cropRect.add(frameCropRect);
+                }
+            }
+        }
+
+        if (cropRect == null) {
+            System.out.println(
+                    "Error: no optimal crop rect could be determined.");
+            System.exit(1);
+        }
+
+        // Make crop rect one pixel larger (since we want an inclusive rect)
+        cropRect.add(
+                cropRect.x + cropRect.width + 1,
+                cropRect.y + cropRect.height + 1);
+
+        System.out.println(arg[0] + ": width=\"" +
+                cropRect.width + "\" height=\"" + cropRect.height + "\"");
+
+        // Create a new image (with frame direction flipped)
+        BufferedImage target = new BufferedImage(
+                FRAMES * cropRect.width,
+                DIRECTIONS * cropRect.height,
+                BufferedImage.TYPE_INT_ARGB);
+
+        // Draw the frames onto the target image
+        Graphics g = target.getGraphics();
+        for (int y = 0; y < DIRECTIONS; y++) {
+            for (int x = 0; x < FRAMES; x++) {
+                g.drawImage(
+                        spriteSet.get(x + FRAMES * y).getSubimage(
+                            cropRect.x,
+                            cropRect.y,
+                            cropRect.width,
+                            cropRect.height),
+                        x * cropRect.width,
+                        y * cropRect.height,
+                        null);
+            }
+        }
+
+        // Save the target image
+        try {
+            ImageIO.write(target, "png", new File(arg[1]));
+        } catch (IOException e) {
+            System.out.println("Error while trying to write " + arg[1] + ".");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static Rectangle determineCropRect(BufferedImage image)
+    {
+        // Loop through all the pixels, ignoring transparent ones.
+        Rectangle rect = null;
+
+        for (int y = 0; y < image.getHeight(); y++) {
+            for (int x = 0; x < image.getWidth(); x++) {
+                int color = image.getRGB(x, y);
+
+                if (color != TRANSPARENT && (color & 0xFF000000) != 0) {
+                    if (rect == null) {
+                        rect = new Rectangle(x, y, 0, 0);
+                    } else {
+                        rect.add(x, y);
+                    }
+                }
+            }
+        }
+
+        return rect;
+    }
+}