/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.example.collision;
import java.util.Random;
import com.ardor3d.example.ExampleBase;
import com.ardor3d.example.Purpose;
import com.ardor3d.image.Texture;
import com.ardor3d.image.TextureStoreFormat;
import com.ardor3d.intersection.PickingUtil;
import com.ardor3d.math.ColorRGBA;
import com.ardor3d.math.Matrix3;
import com.ardor3d.math.Vector3;
import com.ardor3d.renderer.queue.RenderBucketType;
import com.ardor3d.renderer.state.CullState;
import com.ardor3d.renderer.state.MaterialState;
import com.ardor3d.renderer.state.TextureState;
import com.ardor3d.renderer.state.MaterialState.MaterialFace;
import com.ardor3d.scenegraph.Mesh;
import com.ardor3d.scenegraph.Node;
import com.ardor3d.scenegraph.hint.LightCombineMode;
import com.ardor3d.scenegraph.shape.Sphere;
import com.ardor3d.ui.text.BasicText;
import com.ardor3d.util.ReadOnlyTimer;
import com.ardor3d.util.TextureManager;
/**
* A demonstration on how to determine if collisions exist between two nodes.
*/
@Purpose(htmlDescriptionKey = "com.ardor3d.example.collision.ManyCollisionsExample", //
thumbnailPath = "com/ardor3d/example/media/thumbnails/collision_ManyCollisionsExample.jpg", //
maxHeapMemory = 64)
public class ManyCollisionsExample extends ExampleBase {
private final Matrix3 rotation = new Matrix3();
private BasicText t;
private Node n1;
private Node n2;
/** Console fps output */
private double counter = 0;
private int frames = 0;
public static void main(final String[] args) {
start(ManyCollisionsExample.class);
}
@Override
protected void updateExample(final ReadOnlyTimer timer) {
final boolean hasCollision = PickingUtil.hasCollision(n1, n2, false);
if (hasCollision) {
t.setText("Collision!");
} else {
t.setText("No Collision!");
}
final double time = timer.getTimeInSeconds() * 0.2;
n1.setRotation(rotation.fromAngles(time, time, time));
n1.setTranslation(Math.sin(time) * 20.0, 0, -200);
n2.setRotation(rotation.fromAngles(-time, -time, -time));
n2.setTranslation(Math.cos(time * 0.7) * 20.0, 0, -200);
counter += timer.getTimePerFrame();
frames++;
if (counter > 1) {
final double fps = (frames / counter);
counter = 0;
frames = 0;
System.out.printf("%7.1f FPS\n", fps);
}
}
@Override
protected void initExample() {
_canvas.setTitle("ManyCollisionsExample");
t = BasicText.createDefaultTextLabel("Text", "");
t.getSceneHints().setRenderBucketType(RenderBucketType.Ortho);
t.getSceneHints().setLightCombineMode(LightCombineMode.Off);
t.setTranslation(new Vector3(0, 20, 0));
_root.attachChild(t);
final CullState cs = new CullState();
cs.setCullFace(CullState.Face.Back);
cs.setEnabled(true);
_root.setRenderState(cs);
final TextureState ts = new TextureState();
ts.setEnabled(true);
ts.setTexture(TextureManager.load("images/ardor3d_white_256.jpg", Texture.MinificationFilter.Trilinear,
TextureStoreFormat.GuessCompressedFormat, true));
n1 = new Node("n1");
n1.setTranslation(new Vector3(0, 0, -200));
_root.attachChild(n1);
final Random rand = new Random(1337);
final Sphere sphere = new Sphere("Sphere", 8, 8, 1);
sphere.updateModelBound();
for (int i = 0; i < 200; i++) {
final Mesh sm = sphere.makeCopy(true);
sm.setTranslation(new Vector3(rand.nextDouble() * 100.0 - 50.0, rand.nextDouble() * 100.0 - 50.0, rand
.nextDouble() * 100.0 - 50.0));
sm.setRenderState(ts);
n1.attachChild(sm);
}
n2 = new Node("n2");
n2.setTranslation(new Vector3(0, 0, -200));
final MaterialState ms = new MaterialState();
ms.setDiffuse(MaterialFace.FrontAndBack, ColorRGBA.RED);
n2.setRenderState(ms);
_root.attachChild(n2);
for (int i = 0; i < 200; i++) {
final Mesh sm = sphere.makeCopy(true);
sm.setTranslation(new Vector3(rand.nextDouble() * 100.0 - 50.0, rand.nextDouble() * 100.0 - 50.0, rand
.nextDouble() * 100.0 - 50.0));
sm.setRenderState(ts);
n2.attachChild(sm);
}
}
}