CameraNode : created a simple testCase to demonstrate how easy it is to make a camera follow a spatial using a Camera Node.
git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7970 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
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engine/src/test/jme3test/input/TestCameraNode.java
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engine/src/test/jme3test/input/TestCameraNode.java
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/*
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* Copyright (c) 2009-2010 jMonkeyEngine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package jme3test.input;
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import com.jme3.app.SettingsDialog;
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import com.jme3.app.SimpleApplication;
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import com.jme3.input.ChaseCamera;
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import com.jme3.input.KeyInput;
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import com.jme3.input.MouseInput;
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import com.jme3.input.controls.ActionListener;
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import com.jme3.input.controls.AnalogListener;
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import com.jme3.input.controls.KeyTrigger;
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import com.jme3.input.controls.MouseAxisTrigger;
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import com.jme3.input.controls.MouseButtonTrigger;
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import com.jme3.material.Material;
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import com.jme3.math.FastMath;
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import com.jme3.math.Quaternion;
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import com.jme3.math.Vector3f;
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import com.jme3.scene.CameraNode;
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import com.jme3.scene.Geometry;
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import com.jme3.scene.Node;
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import com.jme3.scene.control.CameraControl.ControlDirection;
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import com.jme3.scene.shape.Quad;
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import com.jme3.system.AppSettings;
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import java.awt.event.KeyEvent;
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public class TestCameraNode extends SimpleApplication implements AnalogListener, ActionListener {
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private Geometry teaGeom;
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private Node teaNode;
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CameraNode camNode;
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public static void main(String[] args) {
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TestCameraNode app = new TestCameraNode();
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AppSettings s = new AppSettings(true);
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s.setFrameRate(100);
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app.setSettings(s);
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app.start();
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}
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public void simpleInitApp() {
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// Load a teapot model
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teaGeom = (Geometry) assetManager.loadModel("Models/Teapot/Teapot.obj");
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Material mat = new Material(assetManager, "Common/MatDefs/Misc/ShowNormals.j3md");
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teaGeom.setMaterial(mat);
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//creating a node to attach the geometry and the camera node
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teaNode = new Node("teaNode");
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teaNode.attachChild(teaGeom);
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mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
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mat.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
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Geometry ground = new Geometry("ground", new Quad(50, 50));
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ground.setLocalRotation(new Quaternion().fromAngleAxis(-FastMath.HALF_PI, Vector3f.UNIT_X));
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ground.setLocalTranslation(-25, -1, 25);
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ground.setMaterial(mat);
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rootNode.attachChild(ground);
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rootNode.attachChild(teaNode);
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//creating the camera Node
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camNode = new CameraNode("CamNode", cam);
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//Setting the direction to Spatial to camera, this means the camera will copy the movements of the Node
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camNode.setControlDir(ControlDirection.SpatialToCamera);
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//attaching the camNode to the teaNode
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teaNode.attachChild(camNode);
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//setting the local translation of the cam node to move it away from the teanNode a bit
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camNode.setLocalTranslation(new Vector3f(-10, 0, 0));
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//setting the camNode to look at the teaNode
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camNode.lookAt(teaNode.getLocalTranslation(), Vector3f.UNIT_Y);
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//disabling the flyCam (don't forget that!!)
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flyCam.setEnabled(false);
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regsiterInput();
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}
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public void regsiterInput() {
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inputManager.addMapping("moveForward", new KeyTrigger(KeyInput.KEY_W));
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inputManager.addMapping("moveBackward", new KeyTrigger(KeyInput.KEY_S));
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inputManager.addMapping("moveRight", new KeyTrigger(KeyInput.KEY_D));
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inputManager.addMapping("moveLeft", new KeyTrigger(KeyInput.KEY_A));
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inputManager.addMapping("toggleRotate", new MouseButtonTrigger(MouseInput.BUTTON_LEFT));
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inputManager.addMapping("rotateRight", new MouseAxisTrigger(MouseInput.AXIS_X, true));
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inputManager.addMapping("rotateLeft", new MouseAxisTrigger(MouseInput.AXIS_X, false));
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inputManager.addListener(this, "moveForward", "moveBackward", "moveRight", "moveLeft");
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inputManager.addListener(this, "rotateRight", "rotateLeft", "toggleRotate");
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}
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boolean rotate = false;
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Vector3f direction = new Vector3f();
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public void onAnalog(String name, float value, float tpf) {
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//computing the normalized direction of the cam to move the teaNode
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direction.set(cam.getDirection()).normalizeLocal();
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if (name.equals("moveForward")) {
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direction.multLocal(5 * tpf);
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teaNode.move(direction);
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}
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if (name.equals("moveBackward")) {
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direction.multLocal(-5 * tpf);
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teaNode.move(direction);
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}
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if (name.equals("moveRight")) {
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direction.crossLocal(Vector3f.UNIT_Y).multLocal(5 * tpf);
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teaNode.move(direction);
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}
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if (name.equals("moveLeft")) {
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direction.crossLocal(Vector3f.UNIT_Y).multLocal(-5 * tpf);
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teaNode.move(direction);
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}
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if (name.equals("rotateRight") && rotate) {
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teaNode.rotate(0, 5 * tpf, 0);
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}
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if (name.equals("rotateLeft") && rotate) {
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teaNode.rotate(0, -5 * tpf, 0);
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}
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}
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public void onAction(String name, boolean keyPressed, float tpf) {
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//toggling rotation on or off
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if (name.equals("toggleRotate") && keyPressed) {
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rotate = true;
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inputManager.setCursorVisible(false);
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}
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if (name.equals("toggleRotate") && !keyPressed) {
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rotate = false;
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inputManager.setCursorVisible(true);
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}
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}
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}
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