r3-legacy/bak/r3-d3-rigid-body.js

/**
 * RigidBody Superset
 * @param engine R3.D3.Engine
 * @param mass
 * @param friction
 * @param position
 * @param quaternion
 * @param velocity
 * @param angularVelocity
 * @param linearDamping
 * @param angularDamping
 * @param allowSleep
 * @param sleepSpeedLimit
 * @param sleepTimeLimit
 * @param collisionFilterGroup
 * @param collisionFilterMask
 * @param fixedRotation
 * @param shape R3.D3.Shape
 * @param kinematic Boolean
 * @returns {R3.D3.Physics.RigidBody}
 * @constructor
 */
R3.D3.RigidBody = function(
    engine,
    mass,
    friction,
    position,
    quaternion,
    velocity,
    angularVelocity,
    linearDamping,
    angularDamping,
    allowSleep,
    sleepSpeedLimit,
    sleepTimeLimit,
    collisionFilterGroup,
    collisionFilterMask,
    fixedRotation,
    shape,
    kinematic
) {
    this.id = R3.Utils.RandomId();
    this.position = position || new R3.API.Vector3();
    this.velocity = velocity || new R3.API.Vector3();
    this.angularVelocity = angularVelocity || new R3.API.Vector3();
    this.quaternion = quaternion || new R3.API.Quaternion(0, 0, 0, 1);
    this.mass = typeof mass == "undefined" ? 0 : mass;
    this.friction = typeof friction == "undefined" ? 5 : friction;
    this.linearDamping = typeof linearDamping == "undefined" ? 0.01 : linearDamping;
    this.angularDamping = typeof angularDamping == "undefined" ? 0.01 : angularDamping;
    this.allowSleep = typeof allowSleep == "undefined" ? true : allowSleep;
    this.sleepSpeedLimit = typeof sleepSpeedLimit == "undefined" ? 0.1 : sleepSpeedLimit;
    this.sleepTimeLimit = typeof sleepTimeLimit == "undefined" ? 1.0 : sleepTimeLimit;
    this.collisionFilterGroup = typeof collisionFilterGroup == "undefined" ? 1 : collisionFilterGroup;
    this.collisionFilterMask = typeof collisionFilterMask == "undefined" ? 1 : collisionFilterMask;
    this.fixedRotation = typeof fixedRotation == "undefined" ? false : fixedRotation;
    this.shape = typeof shape == "undefined" ? null : shape;
    this.kinematic = kinematic || false;

    this.engine = engine;
    this.engine.isNotCannonThrow();
    this.instance = this.createInstance();

    // Todo: this should be executed somewhere in r3-z, so that we don't execute it on every construction of an object.
    R3.Utils.Extend(R3.D3.RigidBody, R3.Component);
};

/**
 * private function
 * @returns {*}
 */
R3.D3.RigidBody.prototype.createInstance = function() {

    var instance = new this.engine.instance.Body({
        mass: this.mass,
        friction: this.friction,
        position: new this.engine.instance.Vec3(
            this.position.x,
            this.position.y,
            this.position.z
        ),
        velocity: new this.engine.instance.Vec3(
            this.velocity.x,
            this.velocity.y,
            this.velocity.z
        ),
        quaternion: new this.engine.instance.Quaternion(
            this.quaternion.x,
            this.quaternion.y,
            this.quaternion.z,
            this.quaternion.w
        ),
        angularVelocity: new this.engine.instance.Vec3(
            this.angularVelocity.x,
            this.angularVelocity.y,
            this.angularVelocity.z
        ),
        linearDamping: this.linearDamping,
        angularDamping: this.angularDamping,
        allowSleep: this.allowSleep,
        sleepSpeedLimit: this.sleepSpeedLimit,
        sleepTimeLimit: this.sleepTimeLimit,
        collisionFilterGroup: this.collisionFilterGroup,
        collisionFilterMask: this.collisionFilterMask,
        fixedRotation: this.fixedRotation,
        shape: this.shape && this.shape.instance ? this.shape.instance : null
    });

    this.instance = instance;

    return instance;
};

R3.D3.RigidBody.prototype.toApiRigidBody = function() {
    return null;
};

/**
 * Adds a shape to this rigid body
 * @param shape R3.D3.Shape
 * @param offset R3.API.Vector3
 * @param orientation R3.API.Quaternion
 * @constructor
 */
R3.D3.RigidBody.prototype.addShape = function(
    shape,
    offset,
    orientation
) {
    if (!offset || typeof offset == 'undefined') {
        offset = new R3.API.Vector3(0,0,0);
    }

    if (!orientation || typeof orientation == 'undefined') {
        orientation = new R3.API.Quaternion(0,0,0,1);
    }

    this.instance.addShape(
        shape.instance,
        new this.engine.instance.Vec3(
            offset.x,
            offset.y,
            offset.z
        ),
        new this.engine.instance.Quaternion(
            orientation.x,
            orientation.y,
            orientation.z,
            orientation.w
        )
    );
};

///////////////////////// Methods to override //////////////////////////
R3.D3.RigidBody.prototype.onUpdate = function(
    deltaTime,
    parentEntity
) {
    if(parentEntity) {
        if (this.kinematic) {
            // reapply the entity's transform back to the rigid body, since it is kinematic
            this.instance.position.x = parentEntity.position.x;
            this.instance.position.y = parentEntity.position.y;
            this.instance.position.z = parentEntity.position.z;

            this.instance.quaternion.x = parentEntity.quaternion.x;
            this.instance.quaternion.y = parentEntity.quaternion.y;
            this.instance.quaternion.z = parentEntity.quaternion.z;
            this.instance.quaternion.w = parentEntity.quaternion.w;

            this.instance.inertia.x = 0;
            this.instance.inertia.y = 0;
            this.instance.inertia.z = 0;

            this.instance.velocity.x = 0;
            this.instance.velocity.y = 0;
            this.instance.velocity.z = 0;
        } else {
            var quaternion = new THREE.Quaternion();
            quaternion.copy(this.instance.quaternion);

            var position = new THREE.Vector3();
            position.copy(this.instance.position);

            parentEntity.position.x = position.x;
            parentEntity.position.y = position.y;
            parentEntity.position.z = position.z;

            parentEntity.quaternion.x = quaternion.x;
            parentEntity.quaternion.y = quaternion.y;
            parentEntity.quaternion.z = quaternion.z;
            parentEntity.quaternion.w = quaternion.w;
        }
    }
};