/*
 * Copyright (c) 2003-2006 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package jmetest.terrain;

import javax.swing.ImageIcon;

import com.jme.app.SimpleGame;
import com.jme.image.Texture;
import com.jme.input.NodeHandler;
import com.jme.light.DirectionalLight;
import com.jme.math.Vector3f;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.CameraNode;
import com.jme.scene.state.CullState;
import com.jme.scene.state.TextureState;
import com.jme.util.TextureManager;
import com.jmex.terrain.TerrainPage;
import com.jmex.terrain.util.HillHeightMap;
import com.jmex.terrain.util.ProceduralTextureGenerator;

/**
 * <code>TestHillHeightmap</code> demonstrates the usage of
 * <code>HillHeightMap</code>.
 * 
 * @author Frederik Bülthoff
 * @version $Id: TestHillHeightmap.java,v 1.4 2006/05/12 21:29:21 nca Exp $
 */
public class TestHillHeightmap extends SimpleGame {

	/**
	 * Entry point for the test
	 * 
	 * @param args
	 *            arguments passed to the program
	 */
	public static void main(String[] args) {
		TestHillHeightmap app = new TestHillHeightmap();
		app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG);
		app.start();
	}

	/**
	 * Sets up the test.
	 */
	protected void simpleInitGame() {
		display.setTitle("Hill Heightmap");

		// Set cam above terrain
		CameraNode camNode = new CameraNode("Camera Node", cam);
		camNode.setLocalTranslation(new Vector3f(0, 250, -20));
		camNode.updateWorldData(0);
		input = new NodeHandler(camNode, 150, 1);
		rootNode.attachChild(camNode);

		// Set basic render states
		CullState cs = display.getRenderer().createCullState();
		cs.setCullMode(CullState.CS_BACK);
		cs.setEnabled(true);
		rootNode.setRenderState(cs);

		// Some light
		DirectionalLight dl = new DirectionalLight();
		dl.setDiffuse(new ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f));
		dl.setDirection(new Vector3f(1, -0.5f, 1));
		dl.setEnabled(true);
		lightState.attach(dl);

		// The terrain
		HillHeightMap heightMap = new HillHeightMap(129, 2000, 5.0f, 20.0f,
				(byte) 2);
		heightMap.setHeightScale(0.001f);
		Vector3f terrainScale = new Vector3f(10, 1, 10);
		TerrainPage terrain = new TerrainPage("Terrain", 33, heightMap
				.getSize(), terrainScale, heightMap.getHeightMap(), false);
		terrain.setDetailTexture(1, 16);
		rootNode.attachChild(terrain);

		// Some textures
		ProceduralTextureGenerator pt = new ProceduralTextureGenerator(
		        heightMap);
		    pt.addTexture(new ImageIcon(TestTerrain.class.getClassLoader()
		                                .getResource("jmetest/data/texture/grassb.png")),
		                  -128, 0, 128);
		    pt.addTexture(new ImageIcon(TestTerrain.class.getClassLoader()
		                                .getResource("jmetest/data/texture/dirt.jpg")),
		                  0, 128, 255);
		    pt.addTexture(new ImageIcon(TestTerrain.class.getClassLoader()
		                                .getResource("jmetest/data/texture/highest.jpg")),
		                  128, 255,
		                  384);

		    pt.createTexture(256);

		TextureState ts = display.getRenderer().createTextureState();
		ts.setEnabled(true);
		Texture t1 = TextureManager.loadTexture(pt.getImageIcon().getImage(),
				Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR, true);
		ts.setTexture(t1, 0);

		Texture t2 = TextureManager.loadTexture(TestTerrain.class
				.getClassLoader().getResource("jmetest/data/texture/Detail.jpg"),
				Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR);
		ts.setTexture(t2, 1);
		t2.setWrap(Texture.WM_WRAP_S_WRAP_T);

		t1.setApply(Texture.AM_COMBINE);
		t1.setCombineFuncRGB(Texture.ACF_MODULATE);
		t1.setCombineSrc0RGB(Texture.ACS_TEXTURE);
		t1.setCombineOp0RGB(Texture.ACO_SRC_COLOR);
		t1.setCombineSrc1RGB(Texture.ACS_PRIMARY_COLOR);
		t1.setCombineOp1RGB(Texture.ACO_SRC_COLOR);
		t1.setCombineScaleRGB(1.0f);

		t2.setApply(Texture.AM_COMBINE);
		t2.setCombineFuncRGB(Texture.ACF_ADD_SIGNED);
		t2.setCombineSrc0RGB(Texture.ACS_TEXTURE);
		t2.setCombineOp0RGB(Texture.ACO_SRC_COLOR);
		t2.setCombineSrc1RGB(Texture.ACS_PREVIOUS);
		t2.setCombineOp1RGB(Texture.ACO_SRC_COLOR);
		t2.setCombineScaleRGB(1.0f);
		rootNode.setRenderState(ts);
	}
}