滑板控制器

private var character :CharacterController;
private var speed
=0.0;
private var trans:Transform;
private var targetRot:Quaternion;

var rotationSpeed = 90 ;
 var pedalImpulse = 3.5;
 var
maxSpeed = 15;
 var decayRate = 0.1;
 var jumpSpeed : float =
8.0;
 var raycastMask :LayerMask;
 
function
Start()
{
   character =
GetComponent(CharacterController);
   trans= transform ;
}

function pedal()
{
    speed +=
pedalImpulse;
    speed = Mathf.Min(speed, maxSpeed);
}

function Update ()
{
   var horizontal =
Input.GetAxis("Horizontal");
   var Vertical =
Input.GetAxis("Vertical");
  
transform.Rotate(0,rotationSpeed*horizontal*Time.deltaTime,0);
  

   if(character.isGrounded)
  
  pedal();
   //For normalized vectors Dot returns 1 if
they point in exactly the same direction, -1
   //if they point in
completely opposite directions and zero if the vectors are
perpendicular.
   var moveDirection =
trans.forward*speed*Vertical;
   var upright =
Vector3.Dot(trans.forward,Vector3.up);//upright >0 是向上行走
<0向下行走
   Debug.Log(upright.ToString());
   //we
want fake gravity when the character becomes upright
   //become
the characterController dosen`t rotate
  
  
//当x>0，sign(x)=1;当x=0，sign(x)=0; 当x<0， sign(x)=-1
  
//Clamp01  Clamps value between 0 and 1 and returns value.
  
moveDirection += Vector3.Lerp(
Physics.gravity,Mathf.Sign(upright)
              
* -trans.forward *
Physics.gravity.magnitude,
              
Mathf.Clamp01(Mathf.Abs(upright)));
  
  
character.Move(moveDirection*Time.deltaTime);
  
  
//旋转角色根据地形法线
   var ray = new
Ray(trans.position+Vector3.up,-Vector3.up);
   var hit :
RaycastHit;
   if (character.isGrounded &&
Physics.Raycast(ray,hit,100,raycastMask))
  
{
       var targetRight =
Vector3.Cross(hit.normal,trans.forward);
      
var targetForward =
Vector3.Cross(targetRight,hit.normal);
      
targetRot = Quaternion.LookRotation(targetForward,hit.normal);
  
}
  
   trans.rotation =
Quaternion.Slerp(trans.rotation,targetRot,5*Time.deltaTime);
  

   if(character.isGrounded)
  
{
      
if(speed<0.3)
        
speed=0;
    else
   
{
       speed -=
decayRate*Time.deltaTime*speed;
    }
  
}
  
  
}