fix for issue #989 (RollingTheMonkey works with JBullet but not native)

jme3-examples/src/main/java/jme3test/games/RollingTheMonkey.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2017 jMonkeyEngine
+ * Copyright (c) 2009-2018 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,8 +34,6 @@ package jme3test.games;
 import com.jme3.app.SimpleApplication;
 import com.jme3.bullet.BulletAppState;
 import com.jme3.bullet.PhysicsSpace;
-import com.jme3.bullet.collision.PhysicsCollisionEvent;
-import com.jme3.bullet.collision.PhysicsCollisionListener;
 import com.jme3.bullet.collision.shapes.BoxCollisionShape;
 import com.jme3.bullet.collision.shapes.CompoundCollisionShape;
 import com.jme3.bullet.collision.shapes.SphereCollisionShape;
@@ -66,7 +64,7 @@ import java.util.concurrent.Callable;
  * 
  * @author SkidRunner (Mark E. Picknell)
  */
-public class RollingTheMonkey extends SimpleApplication implements ActionListener, PhysicsCollisionListener {
+public class RollingTheMonkey extends SimpleApplication implements ActionListener {
     
     private static final String TITLE           = "Rolling The Monkey";
     private static final String MESSAGE         = "Thanks for Playing!";
@@ -125,7 +123,6 @@ public class RollingTheMonkey extends SimpleApplication implements ActionListene
         BulletAppState bulletState = new BulletAppState();
         stateManager.attach(bulletState);
         space = bulletState.getPhysicsSpace();
-        space.addCollisionListener(this);
         
         // create light
         DirectionalLight sun = new DirectionalLight();
@@ -313,10 +310,21 @@ public class RollingTheMonkey extends SimpleApplication implements ActionListene
         scoreText.setLocalTranslation((cam.getWidth() - scoreText.getLineWidth()) / 2.0f,
                 scoreText.getLineHeight(), 0.0f);
         
-        // Rotate all the pickups
+        // Rotate all the pickups and check for overlaps
         float pickUpSpeed = PICKUP_SPEED * tpf;
         for(Spatial pickUp : pickUps.getChildren()) {
             pickUp.rotate(pickUpSpeed, pickUpSpeed, pickUpSpeed);
+            
+            GhostControl pickUpControl = pickUp.getControl(GhostControl.class);
+            if (pickUpControl.isEnabled() 
+                    && pickUpControl.getOverlappingCount() > 1) {
+                pickUpControl.setEnabled(false);
+                pickUp.setLocalScale(0f);
+                ++score;
+                if (score >= PICKUP_COUNT) {
+                    messageText.setLocalScale(1.0f);
+                }
+            }
         }
         
         Vector3f centralForce = new Vector3f();
@@ -363,37 +371,6 @@ public class RollingTheMonkey extends SimpleApplication implements ActionListene
                 break;
         }
     }
-    @Override
-    public void collision(PhysicsCollisionEvent event) {
-        Spatial nodeA = event.getNodeA();
-        Spatial nodeB = event.getNodeB();
-        
-        String nameA = nodeA == null ? "" : nodeA.getName();
-        String nameB = nodeB == null ? "" : nodeB.getName();
-        
-        if(nameA.equals("player") && nameB.startsWith("pickUp")) {
-            GhostControl pickUpControl = nodeB.getControl(GhostControl.class);
-            if(pickUpControl != null && pickUpControl.isEnabled()) {
-                pickUpControl.setEnabled(false);
-                nodeB.removeFromParent();
-                nodeB.setLocalScale(0.0f);
-                score += 1;
-                if(score >= PICKUP_COUNT) {
-                    messageText.setLocalScale(1.0f);
-                }
-            }
-        } else if(nameA.startsWith("pickUp") && nameB.equals("player")) {
-            GhostControl pickUpControl = nodeA.getControl(GhostControl.class);
-            if(pickUpControl != null && pickUpControl.isEnabled()) {
-                pickUpControl.setEnabled(false);
-                nodeA.setLocalScale(0.0f);
-                score += 1;
-                if(score >= PICKUP_COUNT) {
-                    messageText.setLocalScale(1.0f);
-                }
-            }
-        }
-    }
     
     private void reset() {
         // Reset the pickups