added sources for Slick

Former-commit-id: 1647fa32ef6894bd7db44f741f07c2f4dcdf9054
Former-commit-id: 0e5810dcfbe1fd59b13e7cabe9f1e93c5542da2d

lib/slick-source/org/newdawn/slick/tests/AlphaMapTest.java

@@ -0,0 +1,84 @@
+package org.newdawn.slick.tests;
+
+import org.newdawn.slick.AppGameContainer;
+import org.newdawn.slick.BasicGame;
+import org.newdawn.slick.Color;
+import org.newdawn.slick.GameContainer;
+import org.newdawn.slick.Graphics;
+import org.newdawn.slick.Image;
+import org.newdawn.slick.SlickException;
+
+/**
+ * A test to demonstrate world clipping as opposed to screen clipping
+ *
+ * @author kevin
+ */
+public class AlphaMapTest extends BasicGame {
+	/** The alpha map being applied */
+	private Image alphaMap;
+	/** The texture to apply over the top */
+	private Image textureMap;
+	
+	/**
+	 * Create a new tester for the clip plane based clipping
+	 */
+	public AlphaMapTest() {
+		super("AlphaMap Test");
+	}
+	
+	/**
+	 * @see org.newdawn.slick.BasicGame#init(org.newdawn.slick.GameContainer)
+	 */
+	public void init(GameContainer container) throws SlickException {
+		alphaMap = new Image("testdata/alphamap.png");
+		textureMap = new Image("testdata/grass.png");
+		container.getGraphics().setBackground(Color.black);
+	}
+
+	/**
+	 * @see org.newdawn.slick.BasicGame#update(org.newdawn.slick.GameContainer, int)
+	 */
+	public void update(GameContainer container, int delta)
+			throws SlickException {
+	}
+
+	/**
+	 * @see org.newdawn.slick.Game#render(org.newdawn.slick.GameContainer, org.newdawn.slick.Graphics)
+	 */
+	public void render(GameContainer container, Graphics g)
+			throws SlickException {
+		g.clearAlphaMap();
+		g.setDrawMode(Graphics.MODE_NORMAL);
+		textureMap.draw(10,50);
+		g.setColor(Color.red);
+		g.fillRect(290,40,200,200);
+		g.setColor(Color.white);
+		// write only alpha
+		g.setDrawMode(Graphics.MODE_ALPHA_MAP);
+		alphaMap.draw(300,50);
+		g.setDrawMode(Graphics.MODE_ALPHA_BLEND);
+		textureMap.draw(300,50);
+		g.setDrawMode(Graphics.MODE_NORMAL);
+	}
+
+	/**
+	 * @see org.newdawn.slick.BasicGame#keyPressed(int, char)
+	 */
+	public void keyPressed(int key, char c) {
+	}
+	
+	/**
+	 * Entry point to our test
+	 * 
+	 * @param argv The arguments to pass into the test
+	 */
+	public static void main(String[] argv) {
+		try {
+			AppGameContainer container = new AppGameContainer(new AlphaMapTest());
+			container.setDisplayMode(800,600,false);
+			container.start();
+		} catch (SlickException e) {
+			e.printStackTrace();
+		}
+	}
+}