159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 jMonkeyEngine 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage jme3test.helloworld; 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.app.SimpleApplication; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.asset.TextureKey; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.BulletAppState; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.control.RigidBodyControl; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.font.BitmapText; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.input.MouseInput; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.input.controls.ActionListener; 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.input.controls.MouseButtonTrigger; 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.material.Material; 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector2f; 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Geometry; 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.shape.Box; 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.shape.Sphere; 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.shape.Sphere.TextureMode; 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.texture.Texture; 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.texture.Texture.WrapMode; 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Example 12 - how to give objects physical properties so they bounce and fall. 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author base code by double1984, updated by zathras 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class HelloPhysics extends SimpleApplication { 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void main(String args[]) { 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta HelloPhysics app = new HelloPhysics(); 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta app.start(); 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Prepare the Physics Application State (jBullet) */ 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private BulletAppState bulletAppState; 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Prepare Materials */ 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Material wall_mat; 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Material stone_mat; 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Material floor_mat; 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Prepare geometries and physical nodes for bricks and cannon balls. */ 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private RigidBodyControl brick_phy; 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final Box box; 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private RigidBodyControl ball_phy; 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final Sphere sphere; 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private RigidBodyControl floor_phy; 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final Box floor; 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** dimensions used for bricks and wall */ 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float brickLength = 0.48f; 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float brickWidth = 0.24f; 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final float brickHeight = 0.12f; 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta static { 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Initialize the cannon ball geometry */ 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sphere = new Sphere(32, 32, 0.4f, true, false); 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sphere.setTextureMode(TextureMode.Projected); 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Initialize the brick geometry */ 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta box = new Box(Vector3f.ZERO, brickLength, brickHeight, brickWidth); 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta box.scaleTextureCoordinates(new Vector2f(1f, .5f)); 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Initialize the floor geometry */ 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor = new Box(Vector3f.ZERO, 10f, 0.1f, 5f); 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor.scaleTextureCoordinates(new Vector2f(3, 6)); 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void simpleInitApp() { 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Set up Physics Game */ 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bulletAppState = new BulletAppState(); 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta stateManager.attach(bulletAppState); 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta //bulletAppState.getPhysicsSpace().enableDebug(assetManager); 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Configure cam to look at scene */ 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta cam.setLocation(new Vector3f(0, 4f, 6f)); 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta cam.lookAt(new Vector3f(2, 2, 0), Vector3f.UNIT_Y); 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Initialize the scene, materials, inputs, and physics space */ 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta initInputs(); 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta initMaterials(); 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta initWall(); 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta initFloor(); 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta initCrossHairs(); 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Add InputManager action: Left click triggers shooting. */ 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private void initInputs() { 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta inputManager.addMapping("shoot", 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta new MouseButtonTrigger(MouseInput.BUTTON_LEFT)); 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta inputManager.addListener(actionListener, "shoot"); 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Every time the shoot action is triggered, a new cannon ball is produced. 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The ball is set up to fly from the camera position in the camera direction. 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private ActionListener actionListener = new ActionListener() { 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void onAction(String name, boolean keyPressed, float tpf) { 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (name.equals("shoot") && !keyPressed) { 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta makeCannonBall(); 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }; 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Initialize the materials used in this scene. */ 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void initMaterials() { 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta wall_mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TextureKey key = new TextureKey("Textures/Terrain/BrickWall/BrickWall.jpg"); 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta key.setGenerateMips(true); 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Texture tex = assetManager.loadTexture(key); 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta wall_mat.setTexture("ColorMap", tex); 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta stone_mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TextureKey key2 = new TextureKey("Textures/Terrain/Rock/Rock.PNG"); 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta key2.setGenerateMips(true); 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Texture tex2 = assetManager.loadTexture(key2); 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta stone_mat.setTexture("ColorMap", tex2); 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TextureKey key3 = new TextureKey("Textures/Terrain/Pond/Pond.jpg"); 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta key3.setGenerateMips(true); 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Texture tex3 = assetManager.loadTexture(key3); 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tex3.setWrap(WrapMode.Repeat); 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_mat.setTexture("ColorMap", tex3); 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Make a solid floor and add it to the scene. */ 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void initFloor() { 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Geometry floor_geo = new Geometry("Floor", floor); 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_geo.setMaterial(floor_mat); 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_geo.setLocalTranslation(0, -0.1f, 0); 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.rootNode.attachChild(floor_geo); 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /* Make the floor physical with mass 0.0f! */ 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_phy = new RigidBodyControl(0.0f); 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta floor_geo.addControl(floor_phy); 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bulletAppState.getPhysicsSpace().add(floor_phy); 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** This loop builds a wall out of individual bricks. */ 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void initWall() { 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float startpt = brickLength / 4; 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float height = 0; 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int j = 0; j < 15; j++) { 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < 6; i++) { 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f vt = 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta new Vector3f(i * brickLength * 2 + startpt, brickHeight + height, 0); 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta makeBrick(vt); 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta startpt = -startpt; 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta height += 2 * brickHeight; 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** This method creates one individual physical brick. */ 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void makeBrick(Vector3f loc) { 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Create a brick geometry and attach to scene graph. */ 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Geometry brick_geo = new Geometry("brick", box); 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta brick_geo.setMaterial(wall_mat); 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta rootNode.attachChild(brick_geo); 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Position the brick geometry */ 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta brick_geo.setLocalTranslation(loc); 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Make brick physical with a mass > 0.0f. */ 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta brick_phy = new RigidBodyControl(2f); 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Add physical brick to physics space. */ 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta brick_geo.addControl(brick_phy); 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bulletAppState.getPhysicsSpace().add(brick_phy); 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** This method creates one individual physical cannon ball. 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * By defaul, the ball is accelerated and flies 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * from the camera position in the camera direction.*/ 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void makeCannonBall() { 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Create a cannon ball geometry and attach to scene graph. */ 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Geometry ball_geo = new Geometry("cannon ball", sphere); 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ball_geo.setMaterial(stone_mat); 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta rootNode.attachChild(ball_geo); 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Position the cannon ball */ 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ball_geo.setLocalTranslation(cam.getLocation()); 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Make the ball physcial with a mass > 0.0f */ 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ball_phy = new RigidBodyControl(1f); 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Add physical ball to physics space. */ 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ball_geo.addControl(ball_phy); 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta bulletAppState.getPhysicsSpace().add(ball_phy); 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** Accelerate the physcial ball to shoot it. */ 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ball_phy.setLinearVelocity(cam.getDirection().mult(25)); 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** A plus sign used as crosshairs to help the player with aiming.*/ 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected void initCrossHairs() { 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta guiNode.detachAllChildren(); 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta guiFont = assetManager.loadFont("Interface/Fonts/Default.fnt"); 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BitmapText ch = new BitmapText(guiFont, false); 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ch.setSize(guiFont.getCharSet().getRenderedSize() * 2); 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ch.setText("+"); // fake crosshairs :) 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta ch.setLocalTranslation( // center 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta settings.getWidth() / 2 - guiFont.getCharSet().getRenderedSize() / 3 * 2, 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta settings.getHeight() / 2 + ch.getLineHeight() / 2, 0); 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta guiNode.attachChild(ch); 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 229