Скрипт:
/ Steering
Vector3 carDir = transform.forward;
float fVelo = rigidbody.velocity.magnitude;
Vector3 veloDir = rigidbody.velocity * (1/fVelo);
float angle = -Mathf.Asin(Mathf.Clamp( Vector3.Cross(veloDir, carDir).y, -1, 1));
float optimalSteering = angle / (wheels[0].maxSteeringAngle * Mathf.Deg2Rad);
if (fVelo < 1)
optimalSteering = 0;
float steerInput = 0;
if (Input.GetKey (KeyCode.LeftArrow))
steerInput = -1;
if (Input.GetKey (KeyCode.RightArrow))
steerInput = 1;
if (steerInput < steering)
{
float steerSpeed = (steering>0)?(1/(steerReleaseTime+veloSteerReleaseTime*fVelo))
1/(steerTime+veloSteerTime*fVelo));if (steering > optimalSteering)
steerSpeed *= 1 + (steering-optimalSteering) * steerCorrectionFactor;
steering -= steerSpeed * Time.deltaTime;
if (steerInput > steering)
steering = steerInput;
}
else if (steerInput > steering)
{
float steerSpeed = (steering<0)?(1/(steerReleaseTime+veloSteerReleaseTime*fVelo))
1/(steerTime+veloSteerTime*fVelo));if (steering < optimalSteering)
steerSpeed *= 1 + (optimalSteering-steering) * steerCorrectionFactor;
steering += steerSpeed * Time.deltaTime;
if (steerInput < steering)
steering = steerInput;
}
// Throttle/Brake
bool accelKey = Input.GetKey (KeyCode.UpArrow);
bool brakeKey = Input.GetKey (KeyCode.DownArrow);
if (drivetrain.automatic && drivetrain.gear == 0)
{
accelKey = Input.GetKey (KeyCode.DownArrow);
brakeKey = Input.GetKey (KeyCode.UpArrow);
}
if (Input.GetKey (KeyCode.LeftShift))
{
throttle += Time.deltaTime / throttleTime;
throttleInput += Time.deltaTime / throttleTime;
}
else if (accelKey)
{
if (drivetrain.slipRatio < 0.10f)
throttle += Time.deltaTime / throttleTime;
else if (!tractionControl)
throttle += Time.deltaTime / throttleTimeTraction;
else
throttle -= Time.deltaTime / throttleReleaseTime;
if (throttleInput < 0)
throttleInput = 0;
throttleInput += Time.deltaTime / throttleTime;
brake = 0;
}
else
{
if (drivetrain.slipRatio < 0.2f)
throttle -= Time.deltaTime / throttleReleaseTime;
else
throttle -= Time.deltaTime / throttleReleaseTimeTraction;
}
throttle = Mathf.Clamp01 (throttle);
if (brakeKey)
{
if (drivetrain.slipRatio < 0.2f)
brake += Time.deltaTime / throttleTime;
else
brake += Time.deltaTime / throttleTimeTraction;
throttle = 0;
throttleInput -= Time.deltaTime / throttleTime;
}
else
{
if (drivetrain.slipRatio < 0.2f)
brake -= Time.deltaTime / throttleReleaseTime;
else
brake -= Time.deltaTime / throttleReleaseTimeTraction;
}
brake = Mathf.Clamp01 (brake);
throttleInput = Mathf.Clamp (throttleInput, -1, 1);
// Handbrake
handbrake = Mathf.Clamp01 ( handbrake + (Input.GetKey (KeyCode.Space)? Time.deltaTime: -Time.deltaTime) );
// Gear shifting
float shiftThrottleFactor = Mathf.Clamp01((Time.time - lastShiftTime)/shiftSpeed);
drivetrain.throttle = throttle * shiftThrottleFactor;
drivetrain.throttleInput = throttleInput;
if(Input.GetKeyDown(KeyCode.A))
{
lastShiftTime = Time.time;
drivetrain.ShiftUp ();
}
if(Input.GetKeyDown(KeyCode.Z))
{
lastShiftTime = Time.time;
drivetrain.ShiftDown ();
}
// Apply inputs
foreach(Wheel w in wheels)
{
w.brake = brake;
w.handbrake = handbrake;
w.steering = steering;
}
}
