graphics: move "MakeTiles" program into src/ directory

(but do not include it in the generated jar file)

git-svn-id: https://micropolis.googlecode.com/svn/trunk/micropolis-java@714 d9718cc8-9f43-0410-858b-315f434eb58c

src/micropolisj/build_tool/MakeTiles.java

@@ -0,0 +1,131 @@
+package micropolisj.build_tool;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.*;
+import java.util.*;
+import javax.imageio.*;
+import javax.swing.ImageIcon;
+
+public class MakeTiles
+{
+	static HashMap<String,String> tileData = new HashMap<String,String>();
+	static HashMap<String,Image> loadedImages = new HashMap<String,Image>();
+
+	static final int NTILES = 960;
+	static final int TILE_SIZE = 16;
+
+	public static void main(String [] args)
+		throws Exception
+	{
+		File recipeFile = new File(args[0]);
+		File outputFile = new File(args[1]);
+
+		BufferedReader in = new BufferedReader(
+			new FileReader(recipeFile));
+		String l;
+		while ( (l=in.readLine()) != null )
+		{
+			if (l.startsWith("#")) {
+				continue;
+			}
+			String[] parts = l.split("\\s+", 2);
+			String tileName = parts[0];
+			String tileImage = parts[1];
+			tileData.put(tileName, tileImage);
+		}
+		in.close();
+
+		// actually assemble the image
+		BufferedImage buf = new BufferedImage(TILE_SIZE,TILE_SIZE*NTILES,BufferedImage.TYPE_INT_RGB);
+		Graphics2D gr = buf.createGraphics();
+
+		for (int i = 0; i < NTILES; i++) {
+			String tileImage = tileData.get(Integer.toString(i));
+			assert tileImage != null;
+
+			ImageSpec ref = parseImageSpec(tileImage);
+			drawTo(ref, gr, 0, TILE_SIZE*i);
+		}
+
+		ImageIO.write(buf, "png", outputFile);
+	}
+
+	static void drawTo(ImageSpec ref, Graphics2D gr, int destX, int destY)
+		throws IOException
+	{
+		if (ref.background != null) {
+			drawTo(ref.background, gr, destX, destY);
+		}
+
+		if (!loadedImages.containsKey(ref.fileName)) {
+			loadedImages.put(ref.fileName,
+				loadImage(ref.fileName));
+		}
+
+		Image sourceImg = loadedImages.get(ref.fileName);
+		int srcWidth = sourceImg.getWidth(null);
+		int srcHeight = sourceImg.getHeight(null);
+
+		gr.drawImage(
+			sourceImg,
+			destX, destY,
+			destX+TILE_SIZE, destY+TILE_SIZE,
+			ref.offsetX, ref.offsetY,
+			ref.offsetX + (ref.width != 0 ? ref.width : srcWidth),
+			ref.offsetY + (ref.height != 0 ? ref.height : srcHeight),
+			null);
+	}
+
+	static class ImageSpec
+	{
+		ImageSpec background;
+		String fileName;
+		int offsetX;
+		int offsetY;
+		int width;
+		int height;
+	}
+
+	static ImageSpec parseImageSpec(String chain)
+	{
+		ImageSpec result = null;
+
+		for (String layerStr : chain.split("\\s*\\|")) {
+
+		ImageSpec rv = new ImageSpec();
+		rv.background = result;
+		result = rv;
+
+		String [] parts = layerStr.split("@", 2);
+		rv.fileName = parts[0];
+
+		if (parts.length >= 2) {
+			String offsetInfo = parts[1];
+			parts = offsetInfo.split(",");
+			if (parts.length >= 1) {
+				rv.offsetX = Integer.parseInt(parts[0]);
+			}
+			if (parts.length >= 2) {
+				rv.offsetY = Integer.parseInt(parts[1]);
+			}
+			if (parts.length >= 3) {
+				rv.width = Integer.parseInt(parts[2]);
+			}
+			if (parts.length >= 4) {
+				rv.height = Integer.parseInt(parts[3]);
+			}
+		}//endif something given after '@' in image specifier
+
+		}//end foreach layer in image specification
+
+		return result;
+	}
+
+	static Image loadImage(String fileName)
+		throws IOException
+	{
+		ImageIcon ii = new ImageIcon(fileName+".png");
+		return ii.getImage();
+	}
+}