void FixedUpdate()
{
//玩家控制键盘输入 AD键控制赛车方向，WS键分别控制赛车前进、后退，空格键控制手闸
float h = CrossPlatformInputManager.GetAxis("Horizontal");
float v = CrossPlatformInputManager.GetAxis("Vertical");
float handbrake = Input.GetAxis("Jump");
//将玩家输入的参数值传入CarMove函数
_car.CarMove(h, v, v, handbrake);
}
void OnJoystickMove(MovingJoystick move)
{
Debug.Log("Arrive");
// Debug.Log ("accel:" + accel.ToString());
if (move.joystickName != "MoveJoystick")
{
return;
}
//获取摇杆中心偏移的坐标
float joyPositionX = move.joystickAxis.x;
float joyPositionY = move.joystickAxis.y;
if (joyPositionY != 0 || joyPositionX != 0)
{
float h = 0;
float v = 0;
float handbreak = 0;
if (joyPositionX > 0)
{
h = 1;
}
else
{
h = -1;
}
if (joyPositionY > 0)
{
v = 1;
}
else
{
v = -1;
}
_car.CarMove(h, v, v, handbreak);
}
}
void OnJoystickMove(MovingJoystick move)
{
Debug.Log("Arrive");
// Debug.Log ("accel:" + accel.ToString());
if (move.joystickName != "MovingJoystick")
{
return;
}
//获取摇杆中心偏移的坐标
float joyPositionX = move.joystickAxis.x;
float joyPositionY = move.joystickAxis.y;
Debug.Log("joyPositionX:" + joyPositionX);
Debug.Log("joyPositionY:" + joyPositionY);
if (joyPositionY != 0 || joyPositionX != 0)
{
// float h = 0;
// float v = 0;
float handbreak = 0;
// if (joyPositionX > 0) {
// h = 1;
// } else {
// h = -1;
// }
//
// if (joyPositionY > 0) {
// v = 1;
// } else {
// v = -1;
// }
_car.CarMove(joyPositionX, joyPositionY, joyPositionY, handbreak);
}
}
private void FixedUpdate()
{
if (m_Target == null || !m_Driving)
{
m_CarController.CarMove(0, 500f, 0f, 0f);
}
else
{
Vector3 fwd = transform.forward;
if (m_Rigidbody.velocity.magnitude > m_CarController.MaxSpeed * 0.1f)
{
fwd = m_Rigidbody.velocity;
}
float desiredSpeed = m_CarController.MaxSpeed;
// now it's time to decide if we should be slowing down...
switch (m_BrakeCondition)
{
case BrakeCondition.TargetDirectionDifference:
{
// the car will brake according to the upcoming change in direction of the target. Useful for route-based AI, slowing for corners.
// check out the angle of our target compared to the current direction of the car
float approachingCornerAngle = Vector3.Angle(m_Target.forward, fwd);
// also consider the current amount we're turning, multiplied up and then compared in the same way as an upcoming corner angle
float spinningAngle = m_Rigidbody.angularVelocity.magnitude * m_CautiousAngularVelocityFactor;
// if it's different to our current angle, we need to be cautious (i.e. slow down) a certain amount
float cautiousnessRequired = Mathf.InverseLerp(0, m_CautiousMaxAngle,
Mathf.Max(spinningAngle,
approachingCornerAngle));
desiredSpeed = Mathf.Lerp(m_CarController.MaxSpeed, m_CarController.MaxSpeed * m_CautiousSpeedFactor,
cautiousnessRequired);
break;
}
case BrakeCondition.TargetDistance:
{
// the car will brake as it approaches its target, regardless of the target's direction. Useful if you want the car to
// head for a stationary target and come to rest when it arrives there.
// check out the distance to target
Vector3 delta = m_Target.position - transform.position;
float distanceCautiousFactor = Mathf.InverseLerp(m_CautiousMaxDistance, 0, delta.magnitude);
// also consider the current amount we're turning, multiplied up and then compared in the same way as an upcoming corner angle
float spinningAngle = m_Rigidbody.angularVelocity.magnitude * m_CautiousAngularVelocityFactor;
// if it's different to our current angle, we need to be cautious (i.e. slow down) a certain amount
float cautiousnessRequired = Mathf.Max(
Mathf.InverseLerp(0, m_CautiousMaxAngle, spinningAngle), distanceCautiousFactor);
desiredSpeed = Mathf.Lerp(m_CarController.MaxSpeed, m_CarController.MaxSpeed * m_CautiousSpeedFactor,
cautiousnessRequired);
break;
}
case BrakeCondition.NeverBrake:
break;
}
// Evasive action due to collision with other cars:
// our target position starts off as the 'real' target position
Vector3 offsetTargetPos = m_Target.position;
// if are we currently taking evasive action to prevent being stuck against another car:
if (Time.time < m_AvoidOtherCarTime)
{
// slow down if necessary (if we were behind the other car when collision occured)
desiredSpeed *= m_AvoidOtherCarSlowdown;
// and veer towards the side of our path-to-target that is away from the other car
offsetTargetPos += m_Target.right * m_AvoidPathOffset;
}
else
{
// no need for evasive action, we can just wander across the path-to-target in a random way,
// which can help prevent AI from seeming too uniform and robotic in their driving
offsetTargetPos += m_Target.right *
(Mathf.PerlinNoise(Time.time * m_LateralWanderSpeed, m_RandomPerlin) * 2 - 1) *
m_LateralWanderDistance;
}
// use different sensitivity depending on whether accelerating or braking:
float accelBrakeSensitivity = (desiredSpeed < m_CarController.CurrentSpeed)
? m_BrakeSensitivity
: m_AccelSensitivity;
// decide the actual amount of accel/brake input to achieve desired speed.
float accel = Mathf.Clamp((desiredSpeed - m_CarController.CurrentSpeed) * accelBrakeSensitivity, -1, 1);
// add acceleration 'wander', which also prevents AI from seeming too uniform and robotic in their driving
// i.e. increasing the accel wander amount can introduce jostling and bumps between AI cars in a race
accel *= (1 - m_AccelWanderAmount) +
(Mathf.PerlinNoise(Time.time * m_AccelWanderSpeed, m_RandomPerlin) * m_AccelWanderAmount);
// calculate the local-relative position of the target, to steer towards
Vector3 localTarget = transform.InverseTransformPoint(offsetTargetPos);
// work out the local angle towards the target
float targetAngle = Mathf.Atan2(localTarget.x, localTarget.z) * Mathf.Rad2Deg;
// get the amount of steering needed to aim the car towards the target
float steer = Mathf.Clamp(targetAngle * m_SteerSensitivity, -1, 1) * Mathf.Sign(m_CarController.CurrentSpeed);
// feed input to the car controller.
m_CarController.CarMove(steer, accel, accel, 0f);
// if appropriate, stop driving when we're close enough to the target.
if (m_StopWhenTargetReached && localTarget.magnitude < m_ReachTargetThreshold)
{
m_Driving = false;
}
}
}
