roadtrip/src/roadtrip/PhysicsTestHelper.java

/*
 * Copyright (c) 2009-2012 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
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * 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 roadtrip;

import com.jme3.app.Application;
import com.jme3.asset.AssetManager;
import com.jme3.asset.TextureKey;
import com.jme3.bullet.PhysicsSpace;
import com.jme3.bullet.collision.shapes.CollisionShape;
import com.jme3.bullet.collision.shapes.MeshCollisionShape;
import com.jme3.bullet.control.RigidBodyControl;
import com.jme3.input.MouseInput;
import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.MouseButtonTrigger;
import com.jme3.light.AmbientLight;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.renderer.queue.RenderQueue.ShadowMode;
import com.jme3.scene.Geometry;
import com.jme3.scene.Node;
import com.jme3.scene.shape.Box;
import com.jme3.scene.shape.Sphere;
import com.jme3.scene.shape.Sphere.TextureMode;
import com.jme3.texture.Texture;

/**
 *
 * @author normenhansen
 */
public class PhysicsTestHelper {

    /**
     * creates a simple physics test world with a floor, an obstacle and some test boxes
     * @param rootNode
     * @param assetManager
     * @param space
     */
    public static void createPhysicsTestWorld(Node rootNode, AssetManager assetManager, PhysicsSpace space) {
        AmbientLight light = new AmbientLight();
        light.setColor(ColorRGBA.LightGray);
        rootNode.addLight(light);

        Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));

        //movable boxes
        for (int i = 0; i < 20; i++) {
            float s = i % 3 == 0 ? 1f : 0.4f;
            Box box = new Box(s, s, s);
            Geometry boxGeometry = new Geometry("Box", box);
            boxGeometry.setMaterial(material);
            boxGeometry.setLocalTranslation(i * 1.2f, 35, -3);
            //RigidBodyControl automatically uses box collision shapes when attached to single geometry with box mesh
            boxGeometry.addControl(new RigidBodyControl(2));
            rootNode.attachChild(boxGeometry);
            space.add(boxGeometry);
        }
    }
    
    public static void createPhysicsTestWorldSoccer(Node rootNode, AssetManager assetManager, PhysicsSpace space) {
        AmbientLight light = new AmbientLight();
        light.setColor(ColorRGBA.LightGray);
        rootNode.addLight(light);

        Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));

        Box floorBox = new Box(20, 0.25f, 20);
        Geometry floorGeometry = new Geometry("Floor", floorBox);
        floorGeometry.setMaterial(material);
        floorGeometry.setLocalTranslation(0, -0.25f, 0);
//        Plane plane = new Plane();
//        plane.setOriginNormal(new Vector3f(0, 0.25f, 0), Vector3f.UNIT_Y);
//        floorGeometry.addControl(new RigidBodyControl(new PlaneCollisionShape(plane), 0));
        floorGeometry.addControl(new RigidBodyControl(0));
        rootNode.attachChild(floorGeometry);
        space.add(floorGeometry);

        //movable spheres
        for (int i = 0; i < 5; i++) {
            Sphere sphere = new Sphere(16, 16, .5f);
            Geometry ballGeometry = new Geometry("Soccer ball", sphere);
            ballGeometry.setMaterial(material);
            ballGeometry.setLocalTranslation(i, 2, -3);
            //RigidBodyControl automatically uses Sphere collision shapes when attached to single geometry with sphere mesh
            ballGeometry.addControl(new RigidBodyControl(.001f));
            ballGeometry.getControl(RigidBodyControl.class).setRestitution(1);
            rootNode.attachChild(ballGeometry);
            space.add(ballGeometry);
        }
        {
        //immovable Box with mesh collision shape
        Box box = new Box(1, 1, 1);
        Geometry boxGeometry = new Geometry("Box", box);
        boxGeometry.setMaterial(material);
        boxGeometry.setLocalTranslation(4, 1, 2);
        boxGeometry.addControl(new RigidBodyControl(new MeshCollisionShape(box), 0));
        rootNode.attachChild(boxGeometry);
        space.add(boxGeometry);
        }
        {
        //immovable Box with mesh collision shape
        Box box = new Box(1, 1, 1);
        Geometry boxGeometry = new Geometry("Box", box);
        boxGeometry.setMaterial(material);
        boxGeometry.setLocalTranslation(4, 3, 4);
        boxGeometry.addControl(new RigidBodyControl(new MeshCollisionShape(box), 0));
        rootNode.attachChild(boxGeometry);
        space.add(boxGeometry);
        }
    }

    /**
     * creates a box geometry with a RigidBodyControl
     * @param assetManager
     * @return
     */
    public static Geometry createPhysicsTestBox(AssetManager assetManager) {
        Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
        Box box = new Box(0.25f, 0.25f, 0.25f);
        Geometry boxGeometry = new Geometry("Box", box);
        boxGeometry.setMaterial(material);
        //RigidBodyControl automatically uses box collision shapes when attached to single geometry with box mesh
        boxGeometry.addControl(new RigidBodyControl(2));
        return boxGeometry;
    }

    /**
     * creates a sphere geometry with a RigidBodyControl
     * @param assetManager
     * @return
     */
    public static Geometry createPhysicsTestSphere(AssetManager assetManager) {
        Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
        material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
        Sphere sphere = new Sphere(8, 8, 0.25f);
        Geometry boxGeometry = new Geometry("Sphere", sphere);
        boxGeometry.setMaterial(material);
        //RigidBodyControl automatically uses sphere collision shapes when attached to single geometry with sphere mesh
        boxGeometry.addControl(new RigidBodyControl(2));
        return boxGeometry;
    }

    /**
     * creates an empty node with a RigidBodyControl
     * @param manager
     * @param shape
     * @param mass
     * @return
     */
    public static Node createPhysicsTestNode(AssetManager manager, CollisionShape shape, float mass) {
        Node node = new Node("PhysicsNode");
        RigidBodyControl control = new RigidBodyControl(shape, mass);
        node.addControl(control);
        return node;
    }

    /**
     * creates the necessary inputlistener and action to shoot balls from teh camera
     * @param app
     * @param rootNode
     * @param space
     */
    public static void createBallShooter(final Application app, final Node rootNode, final PhysicsSpace space) {
        ActionListener actionListener = new ActionListener() {

            public void onAction(String name, boolean keyPressed, float tpf) {
                Sphere bullet = new Sphere(32, 32, 0.4f, true, false);
                bullet.setTextureMode(TextureMode.Projected);
                Material mat2 = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Unshaded.j3md");
                TextureKey key2 = new TextureKey("Textures/Terrain/Rock/Rock.PNG");
                key2.setGenerateMips(true);
                Texture tex2 = app.getAssetManager().loadTexture(key2);
                mat2.setTexture("ColorMap", tex2);
                if (name.equals("shoot") && !keyPressed) {
                    Geometry bulletg = new Geometry("bullet", bullet);
                    bulletg.setMaterial(mat2);
                    bulletg.setShadowMode(ShadowMode.CastAndReceive);
                    bulletg.setLocalTranslation(app.getCamera().getLocation());
                    RigidBodyControl bulletControl = new RigidBodyControl(10);
                    bulletg.addControl(bulletControl);
                    bulletControl.setLinearVelocity(app.getCamera().getDirection().mult(25));
                    bulletg.addControl(bulletControl);
                    rootNode.attachChild(bulletg);
                    space.add(bulletControl);
                }
            }
        };
        app.getInputManager().addMapping("shoot", new MouseButtonTrigger(MouseInput.BUTTON_LEFT));
        app.getInputManager().addListener(actionListener, "shoot");
    }
}