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标题: 关于Transform;这个组件的疑问 [打印本页]

作者: may 时间: 2013-5-28 06:31
标题: 关于Transform;这个组件的疑问
网上搜集的一个摄像机脚本：刚开始直接定义几个参数对于这几个参数比较晕  求大侠指教

// Cache缓存
private var target : Transform;
private var myTrans : Transform;
private var parentTrans : Transform;
var transitionPlane : Transform;
var occlusionDetectorPrefab : Transform;

// Attribute属性
private var distance : float = 10;
private var maxDistance : float = 15;
private var minDistance : float = 5;
//private var height : float = (distance * 2.5) - 5.5;

// Script 脚本
//X角
private var xAngle : float;
//初始X角
private var initialXAngle : float;
//上升速度
private var riseSpeed : int = 30;
//是否有碰撞
private var isColliding : boolean = false;
//目标位置
private var targetPosition : Vector3;
//对这档观看
private var toWatchForOcclusion : Array = new Array();
//遮挡探测器
private var occlusionDetector : Transform;
//走
private var go : boolean = false;
//死亡
private var dead : boolean = false;
//是否暴击
private var isCrit : boolean = false;
//暴击命中
private var critHitVec : Vector3 = Vector3.zero;

function Start()
{
//这个不懂
DontDestroyOnLoad(this);
//赋值位置？？
myTrans = transform;
//赋值
parentTrans = myTrans.root;
//赋值
target = Statics.myTrans;
//
xAngle = parentTrans.localEulerAngles.x;
//初始角度==角度
initialXAngle = xAngle;
//遮挡探测器
occlusionDetector = Instantiate(occlusionDetectorPrefab, myTrans.position, myTrans.rotation);
occlusionDetector.parent = myTrans;
occlusionDetector.localScale.z = (target.position - myTrans.position).magnitude;
occlusionDetector.localPosition.z = occlusionDetector.localScale.z/2;
//Physics.IgnoreCollision(GetComponent(typeof(BoxCollider)), occlusionDetector.GetComponent(typeof(BoxCollider)));
//执行函数
BlackIn();
Execute();
}

function Execute()
{
  yield;  // For Statics
  go = true;
}

function Update ()
{
//判断摄像机有么有碰撞：如果没有碰撞..
  if (isColliding)
  {
parentTrans.localEulerAngles.x = Mathf.Lerp(parentTrans.localEulerAngles.x, xAngle, .2);
  }//如果有碰撞：还要判断角度是不是大于初始角度
  else if (xAngle > initialXAngle)
  {
xAngle -= Time.deltaTime * riseSpeed;
parentTrans.localEulerAngles.x = Mathf.Lerp(parentTrans.localEulerAngles.x, xAngle, .2);
  }
  //如果走=false为真：不走
  if (go)
  {
if (target)
{
      if (PlayerControls.isMoveable){
      //如果角色的控制的可以移动是真
         targetPosition = target.position;
         //targetPosition += Vector3(distance,height,-distance);
      }
      else
      {
      targetPosition = parentTrans.position;
   }

   parentTrans.position = targetPosition;//Vector3.Slerp(myTrans.position, targetPosition, Time.deltaTime);

   if (isCrit)
   {
      myTrans.Translate(critHitVec);
}
else//走
{
      // Don't look at while critting
      myTrans.LookAt(parentTrans);
      // Move camera to position distance distance away from parent
         myTrans.position = parentTrans.position;
   myTrans.Translate(0,0,-distance);
   }

      if (PlayerControls.isControllable)
      {
         if (Input.GetAxis("Zoom"))
         {
            if (distance <= maxDistance ;; distance >= minDistance)
            {
                  distance -= Input.GetAxis("Zoom") * Time.deltaTime * 10;
      //          height -= Input.GetAxis("Zoom") * Time.deltaTime * 10 * 2.5;
            }

            if (distance > maxDistance || distance < minDistance){
                  distance += Input.GetAxis("Zoom") * Time.deltaTime * 10;
      //          height += Input.GetAxis("Zoom") * Time.deltaTime * 10 * 2.5;
            }

            // Only do while zooming
      occlusionDetector.localScale.z = (target.position - myTrans.position).magnitude-1;
      occlusionDetector.localPosition.z = occlusionDetector.localScale.z/2;
         }

         if (Input.GetAxis("Mouse Wheel"))
         {
            print ("Mouse wheel is being used");
            distance += Input.GetAxis("Zoom") * Time.deltaTime * 10;
         }

      }

}
// No target
else if (dead)
{
      myTrans.Translate(Time.deltaTime,0,0);
      myTrans.LookAt(target);
}
else
      print ("oh noes! No target...");

}
}

function StartRising()
{
  isColliding = true;
  if (xAngle < 89)
xAngle += Time.deltaTime * riseSpeed;
}

function StopRising()
{
  isColliding = false;
}

function PlayerDied()
{
go = false;
dead = true;
for (x=0.0; x<1; x+=Time.deltaTime)
{
      myTrans.LookAt(target);
      myTrans.Translate(0,0, ((target.position - myTrans.position).magnitude) * Time.deltaTime);
      yield;
}
}

// Goes from full black to transparent 从全黑到透明
function BlackIn()
{
var transitionTime : float = .5;
for (x=0.0; x<transitionTime; x+=Time.deltaTime)
{
      transitionPlane.renderer.material.color.a = (transitionTime - x)/transitionTime;
      yield;
}
transitionPlane.renderer.material.color.a = 0;
}
//从透明到全黑
function BlackOut()
{
var transitionTime : float = .5;
      for (x=0.0; x<transitionTime; x+=Time.deltaTime)
      {
         transitionPlane.renderer.material.color.a = (x)/transitionTime;
         yield;
      }
}

function TransitionSlideIn()
{
transitionPlane.localPosition = Vector3(-1,0,.3);
var transitionTime : float = .5;
for (x=0.0; x<transitionTime; x+=Time.deltaTime)
{
      transitionPlane.Translate(1/transitionTime*Time.deltaTime,0,0);
      yield;
}
transitionPlane.localPosition = Vector3(0,0,.3);
}

function TransitionSlideOut()
{
transitionPlane.localPosition = Vector3(0,0,.3);
var transitionTime : float = .5;
for (x=0.0; x<transitionTime; x+=Time.deltaTime)
{
      transitionPlane.Translate(1/transitionTime*Time.deltaTime,0,0);
      yield;
}
transitionPlane.localPosition = Vector3(-1,0,.3);
}

function CriticalHit(crit : int)
{
  isCrit = true;
  critHitVec = Vector3.zero;

  var strength : int = (crit - 30) / 5; // Assuming crit is between 30 and 80, should yield a strength between 2 and 10;

  // Strength should be between 1 and 10
  if (strength < 1) strength = 1;
  else if (strength > 10) strength = 10;

  var increase : float = strength * .02;
  var max : float = .07;

  for (x=0.0; x<max; x+=Time.deltaTime)
  {
//critHitVec = Vector3( 0, 0, Random.Range(-1,1) ) * .3;
if (x < max/2)
{
   critHitVec.z += increase;
}
else
{
   critHitVec.z -= increase;
}
yield;
  }

  isCrit = false;
  critHitVec = Vector3.zero;
}

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