コード例 #1
0
    /**
     * Transformiert (rotiert) alle übergebenen Räder anhand des Wheelcolliders
     */
    private void ApplyTransformsToWheels(AxleInfo front, AxleInfo rear)
    {
        WheelCollider[] wheels = new WheelCollider[4];
        wheels[0] = front.leftWheel;
        wheels[1] = front.rightWheel;
        wheels[2] = rear.leftWheel;
        wheels[3] = rear.rightWheel;

        for (int i = 0; i < 4; i++)
        {
            if (wheels[i].transform.childCount == 0)
            {
                return;
            }

            //get child elem of the wheel collider elem
            Transform visualWheel = wheels[i].transform.GetChild(0);

            Vector3    position;
            Quaternion rotation;
            //returns the position and rotation of the wheel collider
            wheels[i].GetWorldPose(out position, out rotation);
            //out is like a return, a method can only return one value, with out you can get multiple

            visualWheel.transform.position = position;
            visualWheel.transform.rotation = rotation;
        }
    }
コード例 #2
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    private void AntiRoll(AxleInfo axel)
    {
        WheelHit hit;
        float    travelL = 1.0f;
        float    travelR = 1.0f;

        bool groundedL = axel.leftWheel.GetGroundHit(out hit);

        if (groundedL)
        {
            travelL = ((axel.leftWheel.transform.InverseTransformPoint(hit.point).y + axel.leftWheel.radius) * -1) / axel.leftWheel.suspensionDistance;
        }

        bool groundedR = axel.rightWheel.GetGroundHit(out hit);

        if (groundedR)
        {
            travelR = ((axel.rightWheel.transform.InverseTransformPoint(hit.point).y + axel.rightWheel.radius) * -1) / axel.rightWheel.suspensionDistance;
        }

        float antiRollForce = (travelL - travelR) * anitRoll;

        if (groundedL)
        {
            _rb.AddForceAtPosition(axel.leftWheel.transform.up * -antiRollForce, axel.leftWheel.transform.position);
        }
        if (groundedR)
        {
            _rb.AddForceAtPosition(axel.rightWheel.transform.up * antiRollForce, axel.rightWheel.transform.position);
        }

        _grounded |= (groundedL || groundedR);
    }
コード例 #3
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    private void Deceleration(AxleInfo axleInfo)
    {
        axleInfo.leftWheelCollider.brakeTorque  = decelerationForce;
        axleInfo.rightWheelCollider.brakeTorque = decelerationForce;

        axleInfo.leftWheelCollider.motorTorque  = 0;
        axleInfo.rightWheelCollider.motorTorque = 0;
    }
コード例 #4
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 private void SetTorque(AxleInfo axel)
 {
     if (axel.motor)
     {
         axel.leftWheel.motorTorque  = _currTorque;
         axel.rightWheel.motorTorque = _currTorque;
     }
 }
コード例 #5
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 private void SetSteering(AxleInfo axel)
 {
     if (axel.steering)
     {
         axel.leftWheel.steerAngle  = _currSteering;
         axel.rightWheel.steerAngle = _currSteering;
     }
 }
コード例 #6
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 public void SetTurningStiffness(AxleInfo axleInfo, float newStiffness)
 {
     if (axleInfo.turning)
     {
         ModifySidewaysStiffness(axleInfo.leftWheel, newStiffness);
         ModifySidewaysStiffness(axleInfo.rightWheel, newStiffness);
     }
 }
コード例 #7
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ファイル: NewBikeController.cs プロジェクト: LucasBoe/Postman
    public void ApplyAxleToVisuals(AxleInfo axle, Transform visual)
    {
        axle.leftWheel.GetWorldPose(out Vector3 pLeft, out Quaternion rotLeft);
        axle.rightWheel.GetWorldPose(out Vector3 pRight, out Quaternion rotRight);

        visual.position = Vector3.Lerp(pLeft, pRight, 0.5f);
        visual.rotation = Quaternion.Lerp(rotLeft, rotRight, 0.5f);
    }
コード例 #8
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    private void Steering(AxleInfo axleInfo, float steering)
    {
        var speedFactor = (rg.velocity.magnitude * 1.1f) / lowestSteerAtSpeed;

        currentSteerAngle  = Mathf.Lerp(lowSpeedSteerAngel, highSpeedSteerAngel, speedFactor);
        currentSteerAngle *= steering;
        axleInfo.leftWheelCollider.steerAngle  = currentSteerAngle;
        axleInfo.rightWheelCollider.steerAngle = currentSteerAngle;
    }
コード例 #9
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ファイル: RedCarController.cs プロジェクト: Kr4yZ33/WreckRace
 public void ApplyLocalPositionToVisuals(AxleInfo axleInfo)
 {
     axleInfo.leftWheelCollider.GetWorldPose(out Vector3 position, out Quaternion rotation);
     axleInfo.leftWheelMesh.transform.position = position;
     axleInfo.leftWheelMesh.transform.rotation = rotation;
     axleInfo.rightWheelCollider.GetWorldPose(out position, out rotation);
     axleInfo.rightWheelMesh.transform.position = position;
     axleInfo.rightWheelMesh.transform.rotation = rotation;
 }
コード例 #10
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ファイル: CarDriver.cs プロジェクト: pashara/diploma
    public void ApplyLocalPositionToVisuals(AxleInfo axleInfo)
    {
        Vector3    position;
        Quaternion rotation;

        axleInfo.leftWheelCollider.GetWorldPose(out position, out rotation);
        axleInfo.leftWheelMesh.transform.position = position;
        axleInfo.rightWheelCollider.GetWorldPose(out position, out rotation);
        axleInfo.rightWheelMesh.transform.position = position;

        axleInfo.rightWheelMesh.transform.rotation = rotation * Quaternion.AngleAxis(-90, Vector3.forward) * Quaternion.AngleAxis(-90, Vector3.up);
        axleInfo.leftWheelMesh.transform.rotation  = rotation * Quaternion.AngleAxis(-90, Vector3.forward) * Quaternion.AngleAxis(-90, Vector3.up);
    }
コード例 #11
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    public void ApplyLocalPositionToVisuals(AxleInfo axleInfo)
    {
        if (!useJob)
        {
            Vector3    position;
            Quaternion rotation;
            axleInfo.leftWheelCollider.GetWorldPose(out position, out rotation);
            axleInfo.leftWheelMesh.transform.position = position;
            axleInfo.leftWheelMesh.transform.rotation = rotation;
            axleInfo.rightWheelCollider.GetWorldPose(out position, out rotation);
            axleInfo.rightWheelMesh.transform.position = position;
            axleInfo.rightWheelMesh.transform.rotation = rotation;
        }
        else
        {
            Transform[] _transforms = new Transform[2];

            _transforms[0] = axleInfo.leftWheelMesh.transform;
            _transforms[1] = axleInfo.rightWheelMesh.transform;
            var transAccessArray = new TransformAccessArray(_transforms);


            Vector3[]    pos = new Vector3[2];
            Quaternion[] rot = new Quaternion[2];

            Vector3    position;
            Quaternion rotation;
            axleInfo.leftWheelCollider.GetWorldPose(out position, out rotation);
            pos[0] = position;
            rot[0] = rotation;

            axleInfo.rightWheelCollider.GetWorldPose(out position, out rotation);
            pos[1] = position;
            rot[1] = rotation;


            var posArray    = new NativeArray <Vector3>(pos, Allocator.TempJob);
            var rotateArray = new NativeArray <Quaternion>(rot, Allocator.TempJob);

            ApplyLocalPositionJob job0 = new ApplyLocalPositionJob()
            {
                position = posArray,
                rotation = rotateArray
            };

            JobHandle handle0 = job0.Schedule(transAccessArray);
            transAccessArray.Dispose();
            rotateArray.Dispose();
            posArray.Dispose();
        }
    }
コード例 #12
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 private void Acceleration(AxleInfo axleInfo, float motor)
 {
     if (motor != 0f)
     {
         axleInfo.leftWheelCollider.brakeTorque = 0;
         // axleInfo.rightWheelCollider.brakeTorque = 0;
         axleInfo.leftWheelCollider.motorTorque = motor;
         //axleInfo.rightWheelCollider.motorTorque = motor;
     }
     else
     {
         Deceleration(axleInfo);
     }
 }
コード例 #13
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ファイル: Frontend.cs プロジェクト: prowestgis/upp-wg
        public PermitView(Services services, NancyContext context)
        {
            User = context.CurrentUser as AuthUser;

            Hauler    = User.ToHaulerInfo();
            Company   = new CompanyInfo();
            Insurance = new InsuranceInfo();
            Vehicle   = new VehicleInfo();
            Truck     = new TruckInfo();
            Axle      = new AxleInfo();
            Trailer   = new TrailerInfo();
            Load      = new LoadInfo();
            Movement  = new MovementInfo();
        }
コード例 #14
0
ファイル: CarDriver.cs プロジェクト: pashara/diploma
    private void Acceleration(AxleInfo axleInfo, float motor)
    {
        if (motor != 0f)
        {
            axleInfo.leftWheelCollider.brakeTorque  = 0;
            axleInfo.rightWheelCollider.brakeTorque = 0;

            axleInfo.leftWheelCollider.motorTorque  = (Mathf.Sign(motor)) * momentByRpm(axleInfo.leftWheelCollider.rpm);  //motor
            axleInfo.rightWheelCollider.motorTorque = (Mathf.Sign(motor)) * momentByRpm(axleInfo.rightWheelCollider.rpm); //motor
        }
        else
        {
            Deceleration(axleInfo);
        }
    }
コード例 #15
0
    // --------------------------------------------------------------------------------------------
    // Name	:	ApplyBrakeTorque
    // Desc	:	Applies any braking torque if the controller is braking
    //          and applies engine braking when decelerating
    // ---------------------------------------------------------------------------------------------
    private void ApplyBrakeTorque(AxleInfo axleInfo)
    {
        bool handBreakOn = Input.GetKey(KeyCode.LeftShift);

        // Handbrake
        if (handBreakOn)
        {
            axleInfo.leftWheel.brakeTorque  = 1000f;
            axleInfo.rightWheel.brakeTorque = 1000f;
        }
        else
        {
            axleInfo.leftWheel.brakeTorque  = 0.0f;
            axleInfo.rightWheel.brakeTorque = 0.0f;
        }
    }
コード例 #16
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    public void ControlCar()
    {
        float motor    = currentGear.MaxMotorTorque * Input.GetAxis("Vertical");
        float steering = currentGear.MaxSteeringAngle * Input.GetAxis("Horizontal");


        //speedText.text = "Speed: " + rb.velocity.magnitude.ToString();

        if (rb.velocity.magnitude > currentGear.MinimumSpeed)
        {
            motor *= 2.0f;
        }
        else
        {
            motor *= 0.25f;
        }

        if (Input.GetKey(KeyCode.Space))
        { //if braking you cannot stear?!
            Brake();
            return;
        }

        for (int i = 0; i < axleInfos.Length; i++)
        {
            AxleInfo axle = axleInfos[i];

            //Adjust steering
            if (axle.Steering)
            {
                axle.LeftWheel.steerAngle  = steering;
                axle.RightWheel.steerAngle = steering;
            }

            //Adjust motor power
            if (axle.Motor)
            {
                axle.LeftWheel.motorTorque  = motor;
                axle.RightWheel.motorTorque = motor;
                axle.LeftWheel.brakeTorque  = 0.0f;
                axle.RightWheel.brakeTorque = 0.0f;
            }

            ApplyLocalPositionsToVisuals(axle.LeftWheel);
            ApplyLocalPositionsToVisuals(axle.RightWheel);
        }
    }
コード例 #17
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    public void ApplyLocalPositionToVisuals(AxleInfo axleInfo)
    {
        Vector3    position;
        Quaternion rotation;

        axleInfo.leftWheelCollider.GetWorldPose(out position, out rotation);
        Transform leftWheelMesh = axleInfo.leftWheelCollider.transform.GetChild(0);

        leftWheelMesh.transform.position = position;
        leftWheelMesh.transform.rotation = axleInfo.leftMeshDefaultRotation * rotation;

        axleInfo.rightWheelCollider.GetWorldPose(out position, out rotation);
        Transform rightWheelMesh = axleInfo.rightWheelCollider.transform.GetChild(0);

        rightWheelMesh.transform.position = position;
        rightWheelMesh.transform.rotation = axleInfo.rightMeshDefaultRotation * rotation;
    }
コード例 #18
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 private void Acceleration(AxleInfo axleInfo, float motor)
 {
     brakeLights.SetActive(false);
     if (motor > 0f &&
         currentSpeed <= topSpeed)
     {
         axleInfo.leftWheelCollider.brakeTorque  = 0;
         axleInfo.rightWheelCollider.brakeTorque = 0;
         axleInfo.leftWheelCollider.motorTorque  = motor * (int)gearStatus;
         axleInfo.rightWheelCollider.motorTorque = motor * (int)gearStatus;
         brakeLights.SetActive(false);
     }
     else
     {
         Deceleration(axleInfo);
         //brakeLights.SetActive(true);
     }
 }
コード例 #19
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    //[SerializeField]
    //private Text speedText;

    //[SerializeField]
    //private Text gearText;

    // Start is called before the first frame update
    void Start()
    {
        rb = this.GetComponent <Rigidbody>();

        visualWheelOffset = axleInfos[0].LeftWheel.transform.GetChild(0).eulerAngles;

        currentGear = gears[0];
        //speedText.text = "Speed: 0";
        //gearText.text = "Gear: 1";

        for (int i = 0; i < axleInfos.Length; i++)
        {
            AxleInfo axle = axleInfos[i];

            axle.RightWheel.ConfigureVehicleSubsteps(20, 12, 16);
            axle.LeftWheel.ConfigureVehicleSubsteps(20, 12, 16);
        }
    }
コード例 #20
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    private void Brake()
    {
        for (int i = 0; i < axleInfos.Length; i++)
        {
            AxleInfo axle = axleInfos[i];

            if (axle.Motor)
            {
                axle.LeftWheel.motorTorque  = 0.0f;
                axle.RightWheel.motorTorque = 0.0f;

                axle.LeftWheel.brakeTorque  = brakespeed;
                axle.RightWheel.brakeTorque = brakespeed;
            }

            ApplyLocalPositionsToVisuals(axle.LeftWheel); //Don't think this should be here!
            ApplyLocalPositionsToVisuals(axle.RightWheel);
        }
    }
コード例 #21
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    private void ApplyLocalPositionToVisuals(AxleInfo axleInfo)
    {
        WheelCollider leftWheel       = axleInfo.leftWheel;
        WheelCollider rightWheel      = axleInfo.rightWheel;
        Transform     leftWheelModel  = axleInfo.leftWheelModel;
        Transform     rightWheelModel = axleInfo.rightWheelModel;

        Vector3    position1, position2;
        Quaternion rotation1, rotation2;

        leftWheel.GetWorldPose(out position1, out rotation1);

        leftWheelModel.position = position1;
        leftWheelModel.rotation = rotation1;

        rightWheel.GetWorldPose(out position2, out rotation2);

        rightWheelModel.position = position2;
        rightWheelModel.rotation = rotation2;
    }
コード例 #22
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ファイル: carController_01.cs プロジェクト: fsmccrea/AG_Car
    void StabilizerBars(float antiRoll, AxleInfo axleInfo)
    {
        WheelHit hit;
        float    travelL = 1.0f;
        float    travelR = 1.0f;

        bool groundedL = axleInfo.leftWheelW.GetGroundHit(out hit);

        //vvv calculates ratio of compression by getting distance between the center of the wheel and the suspension origin and dividing by suspension distance
        if (groundedL)
        {
            travelL = (-axleInfo.leftWheelW.transform.InverseTransformPoint(hit.point).y - axleInfo.leftWheelW.radius) / axleInfo.leftWheelW.suspensionDistance;
        }
        else
        {
            travelL = 1.0f;
        }

        bool groundedR = axleInfo.rightWheelW.GetGroundHit(out hit);

        if (groundedR)
        {
            travelR = (-axleInfo.rightWheelW.transform.InverseTransformPoint(hit.point).y - axleInfo.leftWheelW.radius) / axleInfo.rightWheelW.suspensionDistance;
        }
        else
        {
            travelR = 1.0f;
        }

        float antiRollForce = (travelL - travelR) * antiRoll;

        if (groundedL)
        {
            rb.AddForceAtPosition(axleInfo.leftWheelW.transform.up * -antiRollForce, axleInfo.leftWheelW.transform.position);
        }
        if (groundedR)
        {
            rb.AddForceAtPosition(axleInfo.rightWheelW.transform.up * antiRollForce, axleInfo.rightWheelW.transform.position);
        }
    }
コード例 #23
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    private void handleAntiRoll(AxleInfo axleInfo)
    {
        WheelCollider WheelL = axleInfo.leftWheel;
        WheelCollider WheelR = axleInfo.rightWheel;
        WheelHit      hit;

        float travelL  = 1.0f;
        float travelR  = 1.0f;
        float AntiRoll = 5000.0f;

        bool groundedL = WheelL.GetGroundHit(out hit);

        if (groundedL)
        {
            travelL = (-WheelL.transform.InverseTransformPoint(hit.point).y - WheelL.radius) / WheelL.suspensionDistance;
        }

        bool groundedR = WheelR.GetGroundHit(out hit);

        if (groundedR)
        {
            travelR = (-WheelR.transform.InverseTransformPoint(hit.point).y - WheelR.radius) / WheelR.suspensionDistance;
        }

        float antiRollForce = (travelL - travelR) * AntiRoll;

        if (groundedL)
        {
            rigidbody.AddForceAtPosition(WheelL.transform.up * -antiRollForce, WheelL.transform.position);
        }

        if (groundedR)
        {
            rigidbody.AddForceAtPosition(WheelR.transform.up * antiRollForce, WheelR.transform.position);
        }
    }
コード例 #24
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        private void addCarControllerScript()
        {
            SimpleCarController simpleCarController = machineGameObject.AddComponent <SimpleCarController>();
            AxleInfo            frontAxle           = new AxleInfo();

            frontAxle.wheels   = new WheelCollider[] { wheels[0].GetComponent <WheelCollider>(), wheels[1].GetComponent <WheelCollider>() };
            frontAxle.motor    = true;
            frontAxle.steering = true;


            AxleInfo rearAxle = new AxleInfo();

            rearAxle.wheels               = new WheelCollider[] { wheels[2].GetComponent <WheelCollider>(), wheels[3].GetComponent <WheelCollider>() };
            rearAxle.motor                = true;
            rearAxle.steering             = false;
            simpleCarController.axleInfos = new List <AxleInfo>()
            {
                frontAxle, rearAxle
            };;
            simpleCarController.maxMotorTorque          = DEFAULT_MOTOR_TORQUE;
            simpleCarController.maxSteeringAngle        = 50;
            simpleCarController.verticalAxisInputName   = verticalAxisInputName;
            simpleCarController.horizontalAxisInputName = horizontalAxisInputName;
        }
コード例 #25
0
 private void Brake(AxleInfo axleInfo)
 {
     axleInfo.leftWheelCollider.brakeTorque = brakeTorque;
     // axleInfo.rightWheelCollider.brakeTorque = brakeTorque;
 }
コード例 #26
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 private void Steering(AxleInfo axleInfo, float steering)
 {
     axleInfo.leftWheelCollider.steerAngle = steering;
     //axleInfo.rightWheelCollider.steerAngle = steering;
 }
コード例 #27
0
ファイル: CarController.cs プロジェクト: kartsofchaos/game
    private void handleAntiRoll(AxleInfo axleInfo)
    {
        WheelCollider WheelL = axleInfo.leftWheel;
        WheelCollider WheelR = axleInfo.rightWheel;
        WheelHit hit;

        float travelL = 1.0f;
        float travelR = 1.0f;
        float AntiRoll = 5000.0f;

        bool groundedL = WheelL.GetGroundHit(out hit);

        if (groundedL)
        {
            travelL = (-WheelL.transform.InverseTransformPoint(hit.point).y - WheelL.radius) / WheelL.suspensionDistance;
        }

        bool groundedR = WheelR.GetGroundHit(out hit);

        if (groundedR)
        {
            travelR = (-WheelR.transform.InverseTransformPoint(hit.point).y - WheelR.radius) / WheelR.suspensionDistance;
        }

        float antiRollForce = (travelL - travelR) * AntiRoll;

        if (groundedL)
        {
            rigidbody.AddForceAtPosition(WheelL.transform.up * -antiRollForce, WheelL.transform.position);
        }

        if (groundedR)
        {
            rigidbody.AddForceAtPosition(WheelR.transform.up * antiRollForce, WheelR.transform.position);
        }
    }
コード例 #28
0
ファイル: CarController.cs プロジェクト: kartsofchaos/game
    // --------------------------------------------------------------------------------------------
    // Name	:	ApplyBrakeTorque
    // Desc	:	Applies any braking torque if the controller is braking
    //          and applies engine braking when decelerating
    // ---------------------------------------------------------------------------------------------
    private void ApplyBrakeTorque(AxleInfo axleInfo)
    {
        bool handBreakOn = Input.GetKey(KeyCode.LeftShift);

        // Handbrake
        if (handBreakOn)
        {
            axleInfo.leftWheel.brakeTorque = 1000f;
            axleInfo.rightWheel.brakeTorque = 1000f;
        }
        else
        {
            axleInfo.leftWheel.brakeTorque = 0.0f;
            axleInfo.rightWheel.brakeTorque = 0.0f;
        }
    }
コード例 #29
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 private void Brake(AxleInfo axleInfo)
 {
     axleInfo.leftWheelCollider.brakeTorque  = brakeTorque;
     axleInfo.rightWheelCollider.brakeTorque = brakeTorque;
     brakeLights.SetActive(true);
 }
コード例 #30
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 private void Deceleration(AxleInfo axleInfo)
 {
     axleInfo.leftWheel.brakeTorque  = decelerationForce;
     axleInfo.rightWheel.brakeTorque = decelerationForce;
 }
コード例 #31
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    void OnGUI()
    {
        CarMesh      = EditorGUILayout.ObjectField("CarMesh", CarMesh, typeof(GameObject), true);
        Root         = EditorGUILayout.ObjectField("Root", Root, typeof(GameObject), true);
        IsFrontWheel = EditorGUILayout.Toggle("Front Wheel", IsFrontWheel);

        if (GUILayout.Button("Rig Body"))
        {
            CarMesh = Selection.activeGameObject;
            Object baseCar = AssetDatabase.LoadAssetAtPath("Assets/Prefabs/Vehicles/PrefabPieces/VehicleRoot.prefab", typeof(GameObject));

            Root = Instantiate(baseCar, (CarMesh as GameObject).transform.position, (CarMesh as GameObject).transform.rotation);
            (CarMesh as GameObject).transform.parent = (Root as GameObject).transform;
        }
        if (GUILayout.Button("Rig Wheel"))
        {
            GameObject WheelMesh = Selection.activeGameObject;

            // Front Wheel
            if (IsFrontWheel)
            {
                // Create Wheel Collider
                Object     Wheel         = AssetDatabase.LoadAssetAtPath("Assets/Prefabs/Vehicles/PrefabPieces/FrontWheel.prefab", typeof(GameObject));
                GameObject wheelCollider = Instantiate(Wheel, WheelMesh.transform.position, WheelMesh.transform.rotation) as GameObject;

                // Set parent/child relationships in hierarchy
                wheelCollider.transform.parent = WheelMesh.transform.parent;
                WheelMesh.transform.parent     = wheelCollider.transform;


                AxleInfo ax = (Root as GameObject).GetComponent <BasicVehicle>().axleInfos[0];
                if (ax.leftWheel == null)
                {
                    ax.leftWheel = wheelCollider.GetComponent <WheelCollider>();
                }
                else
                {
                    ax.rightWheel = wheelCollider.GetComponent <WheelCollider>();
                }
            }

            // Back Wheel
            else
            {
                // Create Wheel Collider
                Object     Wheel         = AssetDatabase.LoadAssetAtPath("Assets/Prefabs/Vehicles/PrefabPieces/RearWheel.prefab", typeof(GameObject));
                GameObject wheelCollider = Instantiate(Wheel, WheelMesh.transform.position, WheelMesh.transform.rotation) as GameObject;

                // Set parent/child relationships in hierarchy
                wheelCollider.transform.parent = WheelMesh.transform.parent;
                WheelMesh.transform.parent     = wheelCollider.transform;


                AxleInfo ax = (Root as GameObject).GetComponent <BasicVehicle>().axleInfos[1];
                if (ax.leftWheel == null)
                {
                    ax.leftWheel = wheelCollider.GetComponent <WheelCollider>();
                }
                else
                {
                    ax.rightWheel = wheelCollider.GetComponent <WheelCollider>();
                }
            }
        }


        GUILayout.Label(text);
    }
コード例 #32
0
 public void CalculateAndApplySteering(AxleInfo axleInfo, float speed, float maxSteeringAngle)
 {
     axleInfo.leftWheel.steerAngle  = 30 * speed;
     axleInfo.rightWheel.steerAngle = 30 * speed;
 }