159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2012 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 Bartapackage jme3test.bullet; 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.PhysicsSpace; 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.PhysicsTickListener; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.collision.shapes.CollisionShape; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.control.PhysicsControl; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.bullet.objects.PhysicsVehicle; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.InputCapsule; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.JmeExporter; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.JmeImporter; 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.OutputCapsule; 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.FastMath; 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.renderer.RenderManager; 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.renderer.ViewPort; 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Spatial; 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.control.Control; 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.io.IOException; 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PhysicsHoverControl uses a RayCast Vehicle with "slippery wheels" to simulate a hovering tank 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author normenhansen 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class PhysicsHoverControl extends PhysicsVehicle implements PhysicsControl, PhysicsTickListener { 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Spatial spatial; 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected boolean enabled = true; 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected PhysicsSpace space = null; 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected float steeringValue = 0; 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected float accelerationValue = 0; 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected int xw = 3; 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected int zw = 5; 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected int yw = 2; 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_LF_START = new Vector3f(xw, 1, zw); 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_RF_START = new Vector3f(-xw, 1, zw); 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_LR_START = new Vector3f(xw, 1, -zw); 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_RR_START = new Vector3f(-xw, 1, -zw); 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_LF = new Vector3f(xw, -yw, zw); 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_RF = new Vector3f(-xw, -yw, zw); 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_LR = new Vector3f(xw, -yw, -zw); 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f HOVER_HEIGHT_RR = new Vector3f(-xw, -yw, -zw); 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f tempVect1 = new Vector3f(0, 0, 0); 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f tempVect2 = new Vector3f(0, 0, 0); 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected Vector3f tempVect3 = new Vector3f(0, 0, 0); 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// protected float rotationCounterForce = 10000f; 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// protected float speedCounterMult = 2000f; 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// protected float multiplier = 1000f; 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public PhysicsHoverControl() { 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Creates a new PhysicsNode with the supplied collision shape 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param shape 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public PhysicsHoverControl(CollisionShape shape) { 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super(shape); 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta createWheels(); 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public PhysicsHoverControl(CollisionShape shape, float mass) { 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super(shape, mass); 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta createWheels(); 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Control cloneForSpatial(Spatial spatial) { 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new UnsupportedOperationException("Not supported yet."); 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setSpatial(Spatial spatial) { 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.spatial = spatial; 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setUserObject(spatial); 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (spatial == null) { 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return; 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setPhysicsLocation(spatial.getWorldTranslation()); 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setPhysicsRotation(spatial.getWorldRotation().toRotationMatrix()); 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setEnabled(boolean enabled) { 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.enabled = enabled; 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean isEnabled() { 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return enabled; 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private void createWheels() { 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addWheel(HOVER_HEIGHT_LF_START, new Vector3f(0, -1, 0), new Vector3f(-1, 0, 0), yw, yw, false); 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addWheel(HOVER_HEIGHT_RF_START, new Vector3f(0, -1, 0), new Vector3f(-1, 0, 0), yw, yw, false); 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addWheel(HOVER_HEIGHT_LR_START, new Vector3f(0, -1, 0), new Vector3f(-1, 0, 0), yw, yw, false); 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addWheel(HOVER_HEIGHT_RR_START, new Vector3f(0, -1, 0), new Vector3f(-1, 0, 0), yw, yw, false); 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < 4; i++) { 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta getWheel(i).setFrictionSlip(0.001f); 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void prePhysicsTick(PhysicsSpace space, float f) { 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f angVel = getAngularVelocity(); 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float rotationVelocity = angVel.getY(); 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f dir = getForwardVector(tempVect2).multLocal(1, 0, 1).normalizeLocal(); 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta getLinearVelocity(tempVect3); 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f linearVelocity = tempVect3.multLocal(1, 0, 1); 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (steeringValue != 0) { 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (rotationVelocity < 1 && rotationVelocity > -1) { 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyTorque(tempVect1.set(0, steeringValue, 0)); 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // counter the steering value! 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (rotationVelocity > 0.2f) { 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyTorque(tempVect1.set(0, -mass * 20, 0)); 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else if (rotationVelocity < -0.2f) { 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyTorque(tempVect1.set(0, mass * 20, 0)); 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (accelerationValue > 0) { 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // counter force that will adjust velocity 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // if we are not going where we want to go. 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // this will prevent "drifting" and thus improve control 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // of the vehicle 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float d = dir.dot(linearVelocity.normalize()); 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f counter = dir.project(linearVelocity).normalizeLocal().negateLocal().multLocal(1 - d); 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyForce(counter.multLocal(mass * 10), Vector3f.ZERO); 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (linearVelocity.length() < 30) { 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyForce(dir.multLocal(accelerationValue), Vector3f.ZERO); 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // counter the acceleration value 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (linearVelocity.length() > FastMath.ZERO_TOLERANCE) { 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta linearVelocity.normalizeLocal().negateLocal(); 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta applyForce(linearVelocity.mult(mass * 10), Vector3f.ZERO); 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void physicsTick(PhysicsSpace space, float f) { 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void update(float tpf) { 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (enabled && spatial != null) { 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta getMotionState().applyTransform(spatial); 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void render(RenderManager rm, ViewPort vp) { 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (enabled && space != null && space.getDebugManager() != null) { 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (debugShape == null) { 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta attachDebugShape(space.getDebugManager()); 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta debugShape.setLocalTranslation(motionState.getWorldLocation()); 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta debugShape.setLocalRotation(motionState.getWorldRotation()); 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta debugShape.updateLogicalState(0); 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta debugShape.updateGeometricState(); 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta rm.renderScene(debugShape, vp); 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setPhysicsSpace(PhysicsSpace space) { 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (space == null) { 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (this.space != null) { 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.space.removeCollisionObject(this); 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.space.removeTickListener(this); 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.space = space; 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta space.addCollisionObject(this); 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta space.addTickListener(this); 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.space = space; 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public PhysicsSpace getPhysicsSpace() { 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return space; 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void write(JmeExporter ex) throws IOException { 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super.write(ex); 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta OutputCapsule oc = ex.getCapsule(this); 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(enabled, "enabled", true); 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(spatial, "spatial", null); 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void read(JmeImporter im) throws IOException { 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta super.read(im); 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta InputCapsule ic = im.getCapsule(this); 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta enabled = ic.readBoolean("enabled", true); 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta spatial = (Spatial) ic.readSavable("spatial", null); 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param steeringValue the steeringValue to set 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 22959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void steer(float steeringValue) { 23059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.steeringValue = steeringValue * getMass(); 23159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 23259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 23459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param accelerationValue the accelerationValue to set 23559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 23659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 23759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void accelerate(float accelerationValue) { 23859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.accelerationValue = accelerationValue * getMass(); 23959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 241