UnsupportedCollisionException : Is it something normal?

Troubleshooting physics
1

Hello,



When I try to check collision between two of my characters ( OtoMesh models ), an exception is thrown :



com.jme3.collision.UnsupportedCollisionException

at com.jme3.collision.bih.BIHTree.collideWith(BIHTree.java:479)

at com.jme3.scene.Mesh.collideWith(Mesh.java:512)

at com.jme3.scene.Geometry.collideWith(Geometry.java:260)

at com.jme3.scene.Node.collideWith(Node.java:512)

at com.didigame.acariaempire.scene.SceneCharacter.collideWith(SceneCharacter.java:1384)

at com.didigame.acariaempire.action.MoveAction.managePreparation(MoveAction.java:178)

at com.didigame.acariaempire.scene.SceneCharacter.managePreparation(SceneCharacter.java:775)

at com.didigame.acariaempire.ActionController.doScheduledActions(ActionController.java:350)

at com.didigame.acariaempire.ActionController.loopOnActions(ActionController.java:241)

at com.didigame.acariaempire.GameApplication.simpleUpdate(GameApplication.java:235)

at com.jme3.app.SimpleApplication.update(SimpleApplication.java:248)

at com.jme3.system.lwjgl.LwjglAbstractDisplay.runLoop(LwjglAbstractDisplay.java:137)

at com.jme3.system.lwjgl.LwjglDisplay.runLoop(LwjglDisplay.java:161)

at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:205)

at java.lang.Thread.run(Unknown Source)



Is it normal ?

If yes, how can I check that two of my characters are not colliding one which each other ?



Thanks in advance

2

What collisionshape you sue for your characters? For me this looks like it is sueing the one for only static meshes, but not exactly sure.

3

Here is where I add my physics control and my collision shape :

[java]

//

//Calculate collision shape
//
BoundingBox box = ((BoundingBox)model.getWorldBound());
float xHalfExtent = box.getXExtent();
float yHalfExtent = box.getYExtent();
float zHalfExtent = box.getZExtent();
float radius = Math.max(xHalfExtent, zHalfExtent);
//float height = yHalfExtent - radius;
float height = yHalfExtent;
CapsuleCollisionShape shape = new CapsuleCollisionShape( radius, height, 1);

//
//Create physics node
//
this.physicNode = new CharacterControl(shape, 0.01f );
//this.physicNode = new CharacterControl(shape, 0.01f );
this.model.addControl( physicNode );
this.physicNode.setUpAxis(1);
this.physicNode.setGravity(10.0f);
this.physicNode.setFallSpeed(0.1f);
this.physicNode.setJumpSpeed(10);
this.physicNode.setMaxSlope( FastMath.PI / 2.0f );
[/java]

Shoud I change my CollisionShape ?
4

You are mixing up physics and geometry based collision here. Geometry based collision throws these exceptions and yes, they are normal when you try and do unsupported collisions.

5

Hmmm,

Geometry based collision : I can use something like collideWith( Ray ) for geomtry based collision, but can’t use it with custom Spatial ?



Physics collisions : Can I use my physicsNode to manually see if there is a collision with another physicsNode ?

Like a physicNode.getCollisionGroup().get[…] ?

6

You can sweep and do ray tests like in geometry based collision, read the manual and javadoc.