public void dynamics(boolean restore) {
if (currBodyType.equals("DYNAMIC") || currBodyType.equals("RIGID_BODY")) {
if (restore) {
bodyType(currBodyType);
} else { // suspend
body.setCollisionFlags(body.getCollisionFlags() | CollisionFlags.KINEMATIC_OBJECT);
}
}
}
public void ghostNoChildren(boolean ghost) {
int flags = body.getCollisionFlags();
int noContact = CollisionFlags.NO_CONTACT_RESPONSE;
if (ghost) flags |= noContact;
else flags &= ~noContact;
body.setCollisionFlags(flags);
}
public void bodyType(String s) {
int flags = body.getCollisionFlags();
if (body.isInWorld()) scene.world.removeRigidBody(body);
if (s.equals("NO_COLLISION")) {
for (GameObject g : touchingObjects) g.activate();
flags &= ~CollisionFlags.KINEMATIC_OBJECT;
} else {
if (s.equals("STATIC")) {
flags |= CollisionFlags.KINEMATIC_OBJECT;
} else if (s.equals("SENSOR")) {
flags |= CollisionFlags.KINEMATIC_OBJECT;
flags |= CollisionFlags.NO_CONTACT_RESPONSE;
} else {
// NO_COLLISION -> DYNAMIC or RIGID_BODY hack
if (currBodyType.equals("NO_COLLISION")) {
body.clearForces();
body.setLinearVelocity(new Vector3f());
}
// kinematic initialization hack
if (mass() == Float.POSITIVE_INFINITY) {
mass(1); // Blender default
flags &= ~CollisionFlags.KINEMATIC_OBJECT;
body.setCollisionFlags(flags);
}
flags &= ~CollisionFlags.KINEMATIC_OBJECT;
if (s.equals("DYNAMIC")) {
body.setAngularVelocity(new Vector3f());
body.setAngularFactor(0);
} else if (s.equals("RIGID_BODY")) {
body.setAngularFactor(1);
} else {
throw new RuntimeException(s + " is no valid bodyType name.");
}
}
scene.world.addRigidBody(body);
activate();
}
body.setCollisionFlags(flags);
currBodyType = s;
}