public void Arrive()
{
if (!target)
{
return;
}
Vector3 direction = target.transform.position - transform.position;
float distance = direction.magnitude;
//1.确定速度
float speed = 0;
if (distance < targetRadius)
{
steering.ResetSteering();
isArrived = true;
}
else if (distance > slowRadius)
{
speed = agent.maxSpeed;
}
else
{
speed = agent.maxSpeed * distance / slowRadius;
}
//2.指定理想速度
Vector2 desiredVelocity = direction;
desiredVelocity.Normalize();
desiredVelocity *= speed;
//3.计算实际速度
steering.accel = desiredVelocity - rigidbody2D.velocity;
steering.accel /= timeToTarget;
steering.accel = Vector2.ClampMagnitude(steering.accel, agent.maxAccel);
}