/**
* @param restitution反弹系数
* @param friction摩擦力系数
* @param mass
*/
public void init(float restitution, float friction, float mass) {
this.restitution = restitution;
this.friction = friction;
this.mass = mass;
intertia = new javax.vecmath.Vector3f();
RigidBodyConstructionInfo info;
if (mass == 0) {
info = new RigidBodyConstructionInfo(this.mass, state, shape);
} else {
shape.calculateLocalInertia(mass, intertia);
info = new RigidBodyConstructionInfo(this.mass, state, shape, intertia);
}
rigidBody = new RigidBody(info);
rigidBody.setFriction(friction);
rigidBody.setRestitution(restitution);
world.addRigidBody(rigidBody);
}
RigidBody createBody(
float mass,
Vector3f position,
CollisionShape shape,
Float initialVelocity,
Matrix3f orientation) {
// Create Dynamic Objects
Transform startTransform = new Transform();
startTransform.setIdentity();
// rigidbody is dynamic if and only if mass is non zero,
// otherwise static
boolean isDynamic = (mass != 0f);
Vector3f localInertia = new Vector3f(0, 0, 0);
if (isDynamic) {
shape.calculateLocalInertia(mass, localInertia);
}
if (orientation != null) {
startTransform.set(orientation);
}
startTransform.origin.set(position);
// using motionstate is recommended, it provides
// interpolation capabilities, and only synchronizes
// 'active' objects
DefaultMotionState myMotionState = new DefaultMotionState(startTransform);
RigidBodyConstructionInfo rbInfo =
new RigidBodyConstructionInfo(mass, myMotionState, shape, localInertia);
RigidBody rb = new RigidBody(rbInfo);
rb.setFriction(0.4f);
// rb.setDamping(0.7f, 0.7f);
if (initialVelocity != 0f && orientation != null) {
synchronized (initialVelocityVector) {
initialVelocityVector.set(0f, 0f, initialVelocity);
orientation.transform(initialVelocityVector);
rb.setLinearVelocity(initialVelocityVector);
}
}
return rb;
}
