public void update(float delta) {
// tmp.set(acceleration);
// tmp.scl(delta);
// velocity.add(tmp);
// velocity = velocity.scl(0.95f);
tmp.set(velocity);
tmp.scl(delta);
position.add(tmp);
transform.setTranslation(position);
collisionObject.setWorldTransform(transform);
}
public Projectile(
Vector3 startingPosition, Vector3 direction, float msSpeed, btCollisionWorld world) {
btCollisionShape sphere = new btSphereShape(0.5f);
collisionObject = new btCollisionObject();
collisionObject.setCollisionShape(sphere);
collisionObject.userData = this;
world.addCollisionObject(collisionObject);
position = new Vector3(startingPosition);
/*
acceleration = new Vector3(direction);
acceleration.nor().scl(msSpeed);*/
velocity = new Vector3(direction);
velocity.nor().scl(msSpeed);
transform = new Matrix4();
transform.setTranslation(position);
collisionObject.setWorldTransform(transform);
}