[SOLVED] Animation doesn't work

Troubleshooting General Help
1

Hello! I have NullPointerException in string "“control.addListener(this);”

package mygame.utils;

import com.jme3.animation.AnimChannel;
import com.jme3.animation.AnimControl;
import com.jme3.animation.AnimEventListener;
import com.jme3.animation.Animation;
import com.jme3.animation.LoopMode;
import com.jme3.animation.SpatialTrack;
import com.jme3.app.SimpleApplication;
import com.jme3.bullet.BulletAppState;
import com.jme3.bullet.collision.shapes.CapsuleCollisionShape;
import com.jme3.bullet.control.RigidBodyControl;
import com.jme3.math.Quaternion;
import com.jme3.math.Vector3f;
import com.jme3.scene.Node;
import com.jme3.scene.Spatial;
import controls.avatarCameraInputControl;
import java.util.HashMap;

/**
 *
 * @author vik24rus
 */
public class Avatar implements AnimEventListener {
    Spatial objectAvatar;
    SimpleApplication app;
    RigidBodyControl phyAvatar;
    BulletAppState bulletApp;
    avatarCameraInputControl avatarCameraInputControl;
    AnimControl avatarAnimaControl;
    AnimChannel avatarAnimaChannel;
    Node player;
    private AnimChannel channel;
    private AnimControl control;
    public Avatar(SimpleApplication app , BulletAppState bulletApp ) {
        this.app = app;
        this.bulletApp = bulletApp;
        objectAvatar = app.getAssetManager().loadModel("Models/Player/Player.j3o"); //LoadPlayerModel
        player = (Node) app.getAssetManager().loadModel("Models/Player/Player.j3o");
        objectAvatar.setLocalTranslation(new Vector3f(0.5f,0.5f,0.5f));  //StartPlayerPosition
        avatarCameraInputControl = new avatarCameraInputControl(app , objectAvatar);
        objectAvatar.addControl(avatarCameraInputControl);
        addPhysics();
        addAnimation();
    }
    
    private void addPhysics(){
        phyAvatar = new RigidBodyControl( new CapsuleCollisionShape(1 , 2) , 2.0f );
        objectAvatar.addControl(phyAvatar);
        phyAvatar.setPhysicsSpace(bulletApp.getPhysicsSpace());
        phyAvatar.setKinematic(true) ;
    }
    
    private void addAnimation(){
        
        control = player.getControl(AnimControl.class);
        control.addListener(this);
        channel = control.createChannel();
        channel.setAnim("ArmatureAction");

    }
    
    
    
    
    public Spatial getObjectAvatar(){
        return objectAvatar;
    }

    @Override
    public void onAnimCycleDone(AnimControl control, AnimChannel channel, String animName)
    {
        channel.setAnim("ArmatureAction", 0.50f);
        channel.setLoopMode(LoopMode.DontLoop);
        channel.setSpeed(1f);
    }

    @Override
    public void onAnimChange(AnimControl control, AnimChannel channel, String animName)
    {
        
    }
    
    public void onAction(String binding, boolean value, float tpf) {
       
    }
        
}

I think that because AnimControl is not in the main node in my model? or no?
All examples what I found locate animation in class which extends SimpleApplication, but I use animation in my class. Tell me please,what i make not properly

2

the control is not in the root node of the model. getControl does not traverse the scenegraph, so you must obtain the correct child node “Cube”.

something like player.getchild(0).getChild(0).getControl(AnimControl.class) should suffice. use the string names if you prefer. Case sensitive.

sorry for the terrible grammar, i do not get on well with tablets.

3

or player.getChild(“Cube”)

https://javadoc.jmonkeyengine.org/com/jme3/scene/Node.html#getChild-java.lang.String-

Edit: and note: I know jayfella mentioned that in his but I missed it the first time I read it and others might also. It does the traversal through the children to find the node named that.

…it’s a bit dangerous if all of your nodes are generically named, though.

4

you know i never knew it traversed. i presumed it wouldnt due to so many potential conflicts. quite convenient for models. ty. :slight_smile:

5

ALL WORKS!!! Best game engine! :slight_smile: so simple! And I wait new Monkanim :smiley:

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