1 package jme3test.model.anim; 2 3 import com.jme3.animation.AnimControl; 4 import com.jme3.animation.Animation; 5 import com.jme3.animation.SpatialTrack; 6 import com.jme3.app.SimpleApplication; 7 import com.jme3.light.AmbientLight; 8 import com.jme3.light.DirectionalLight; 9 import com.jme3.math.Quaternion; 10 import com.jme3.math.Vector3f; 11 import com.jme3.scene.Geometry; 12 import com.jme3.scene.Node; 13 import com.jme3.scene.shape.Box; 14 import java.util.HashMap; 15 16 public class TestSpatialAnim extends SimpleApplication { 17 main(String[] args)18 public static void main(String[] args) { 19 TestSpatialAnim app = new TestSpatialAnim(); 20 app.start(); 21 } 22 23 @Override simpleInitApp()24 public void simpleInitApp() { 25 26 AmbientLight al = new AmbientLight(); 27 rootNode.addLight(al); 28 29 DirectionalLight dl = new DirectionalLight(); 30 dl.setDirection(Vector3f.UNIT_XYZ.negate()); 31 rootNode.addLight(dl); 32 33 // Create model 34 Box box = new Box(1, 1, 1); 35 Geometry geom = new Geometry("box", box); 36 geom.setMaterial(assetManager.loadMaterial("Textures/Terrain/BrickWall/BrickWall.j3m")); 37 Node model = new Node("model"); 38 model.attachChild(geom); 39 40 Box child = new Box(0.5f, 0.5f, 0.5f); 41 Geometry childGeom = new Geometry("box", child); 42 childGeom.setMaterial(assetManager.loadMaterial("Textures/Terrain/BrickWall/BrickWall.j3m")); 43 Node childModel = new Node("childmodel"); 44 childModel.setLocalTranslation(2, 2, 2); 45 childModel.attachChild(childGeom); 46 model.attachChild(childModel); 47 48 //animation parameters 49 float animTime = 5; 50 int fps = 25; 51 float totalXLength = 10; 52 53 //calculating frames 54 int totalFrames = (int) (fps * animTime); 55 float dT = animTime / totalFrames, t = 0; 56 float dX = totalXLength / totalFrames, x = 0; 57 float[] times = new float[totalFrames]; 58 Vector3f[] translations = new Vector3f[totalFrames]; 59 Quaternion[] rotations = new Quaternion[totalFrames]; 60 Vector3f[] scales = new Vector3f[totalFrames]; 61 for (int i = 0; i < totalFrames; ++i) { 62 times[i] = t; 63 t += dT; 64 translations[i] = new Vector3f(x, 0, 0); 65 x += dX; 66 rotations[i] = Quaternion.IDENTITY; 67 scales[i] = Vector3f.UNIT_XYZ; 68 } 69 SpatialTrack spatialTrack = new SpatialTrack(times, translations, rotations, scales); 70 71 //creating the animation 72 Animation spatialAnimation = new Animation("anim", animTime); 73 spatialAnimation.setTracks(new SpatialTrack[] { spatialTrack }); 74 75 //create spatial animation control 76 AnimControl control = new AnimControl(); 77 HashMap<String, Animation> animations = new HashMap<String, Animation>(); 78 animations.put("anim", spatialAnimation); 79 control.setAnimations(animations); 80 model.addControl(control); 81 82 rootNode.attachChild(model); 83 84 //run animation 85 control.createChannel().setAnim("anim"); 86 } 87 } 88