/**
 * This component makes the parentEntity (ex. car) follow the path provided by the spline
 * @param id String
 * @param name String
 * @param spline R3.D3.API.Spline
 * @param mesh R3.D3.API.Mesh
 * @param raytraceMesh R3.D3.API.Mesh
 * @param accelleration Number
 * @param maxSpeed Number
 * @param baseOffset R3.API.Vector
 * @param maxOffset R3.API.Vector
 * @param steeringSpeed Number
 * @param targetOffset R3.API.Vector3
 * @param currentOffset R3.API.Vector3
 * @param currentPathValue Number
 * @param currentSpeed Number
 * @param direction Number
 * @param raycaster R3.D3.Raycaster
 * @param currentPosition R3.API.Vector3
 * @param futurePosition R3.API.Vector3
 * @param up R3.API.Vector3
 * @param rotationMatrix R3.API.Matrix4
 * @param rotationVector R3.API.Quaternion
 * @param parentEntity
 * @constructor
 */
R3.D3.API.PathFollowing = function (
    id,
    name,
    spline,
    mesh,
    raytraceMesh,
    accelleration,
    maxSpeed,
    baseOffset,
    maxOffset,
    steeringSpeed,
    targetOffset,
    currentOffset,
    currentPathValue,
    currentSpeed,
    direction,
    raycaster,
    currentPosition,
    futurePosition,
    up,
    rotationMatrix,
    rotationVector,
    parentEntity
) {
    if (R3.Utils.UndefinedOrNull(id)) {
        id = R3.Utils.RandomId();
    }
    this.id = id;

    if (R3.Utils.UndefinedOrNull(name)) {
        name = this.constructor.name;
    }
    this.name = name;

    if (R3.Utils.UndefinedOrNull(spline)) {
        spline = null;
    }
    this.spline = spline;

    if (R3.Utils.UndefinedOrNull(mesh)) {
        mesh = null;
    }
    this.mesh = mesh;

    if (R3.Utils.UndefinedOrNull(raytraceMesh)) {
        raytraceMesh = null;
    }
    this.raytraceMesh = raytraceMesh;

    if (R3.Utils.UndefinedOrNull(maxSpeed)) {
        maxSpeed = 0.03;
    }
    this.maxSpeed = maxSpeed;

    if (R3.Utils.UndefinedOrNull(accelleration)) {
        accelleration = 0.1;
    }
    this.accelleration = accelleration;

    if (R3.Utils.UndefinedOrNull(baseOffset)) {
        baseOffset = new R3.API.Vector3();
    }
    this.baseOffset = baseOffset;

    if (R3.Utils.UndefinedOrNull(maxOffset)) {
        maxOffset = new R3.API.Vector3();
    }
    this.maxOffset = maxOffset;

    if (R3.Utils.UndefinedOrNull(steeringSpeed)) {
        steeringSpeed = 1.0;
    }
    this.steeringSpeed = steeringSpeed;

    if (R3.Utils.UndefinedOrNull(targetOffset)) {
        targetOffset = new R3.API.Vector3();
    }
    this.targetOffset = targetOffset;

    if (R3.Utils.UndefinedOrNull(currentOffset)) {
        currentOffset = new R3.API.Vector3();
    }
    this.currentOffset = currentOffset;

    if (R3.Utils.UndefinedOrNull(currentPathValue)) {
        currentPathValue = 0;
    }
    this.currentPathValue = currentPathValue;

    if (R3.Utils.UndefinedOrNull(currentSpeed)) {
        currentSpeed = 0;
    }
    this.currentSpeed = currentSpeed;

    if (R3.Utils.UndefinedOrNull(direction)) {
        direction = 1;
    }
    this.direction = direction;

    if (R3.Utils.UndefinedOrNull(raycaster)) {
        raycaster = new R3.D3.API.Raycaster();
    }
    this.raycaster = raycaster;

    if (R3.Utils.UndefinedOrNull(currentPosition)) {
        currentPosition = new R3.API.Vector3();
    }
    this.currentPosition = currentPosition;

    if (R3.Utils.UndefinedOrNull(futurePosition)) {
        futurePosition = new R3.API.Vector3();
    }
    this.futurePosition = futurePosition;

    if(R3.Utils.UndefinedOrNull(up)) {
        up = new R3.API.Vector3(0, 1, 0);
    }
    this.up = up;

    if (R3.Utils.UndefinedOrNull(rotationMatrix)) {
        rotationMatrix = new R3.API.Matrix4();
    }
    this.rotationMatrix = rotationMatrix;

    if (R3.Utils.UndefinedOrNull(rotationVector)) {
        rotationVector = new R3.API.Quaternion();
    }
    this.rotationVector = rotationVector;

    if (R3.Utils.UndefinedOrNull(parentEntity)) {
        parentEntity = null;
    }
    this.parentEntity = parentEntity;

};

R3.D3.API.PathFollowing.prototype = Object.create(R3.Component.prototype);
R3.D3.API.PathFollowing.prototype.constructor = R3.D3.API.PathFollowing;

/**
 * Returns an API path following component from an Object path following component
 * @param objectComponent
 * @constructor
 */
R3.D3.API.PathFollowing.FromObject = function(objectComponent) {

    var apiRaycaster = null;

    if (objectComponent.raycaster) {
        apiRaycaster = R3.D3.API.Raycaster.FromObject(objectComponent.raycaster);
    }

    return new R3.D3.API.PathFollowing(
        objectComponent.id,
        objectComponent.name,
        objectComponent.spline,
        objectComponent.mesh,
        objectComponent.raytraceMesh,
        objectComponent.accelleration,
        objectComponent.maxSpeed,
        R3.API.Vector3.FromObject(objectComponent.baseOffset),
        R3.API.Vector3.FromObject(objectComponent.maxOffset),
        objectComponent.steeringSpeed,
        R3.API.Vector3.FromObject(objectComponent.targetOffset),
        R3.API.Vector3.FromObject(objectComponent.currentOffset),
        objectComponent.currentPathValue,
        objectComponent.currentSpeed,
        objectComponent.direction,
        apiRaycaster,
        R3.API.Vector3.FromObject(objectComponent.currentPosition),
        R3.API.Vector3.FromObject(objectComponent.futurePosition),
        R3.API.Vector3.FromObject(objectComponent.up),
        R3.API.Matrix4.FromObject(objectComponent.rotationMatrix),
        R3.API.Quaternion.FromObject(objectComponent.rotationVector),
        objectComponent.parentEntity
    );
};