实现物体绕不同轴旋转，并可以外部调用的函数

第一个文件，声明枚举类型，分别为均匀变化和加速变化

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using UnityEngine; using System.Collections;   public enum CTRotationType {     Uniform,     AccelerateUniformly }

 

第二个文件：主函数，实现围绕轴变化的两个函数，分别为均匀变化和加速变化

 

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using UnityEngine; using System.Collections;   public class CTRotation : MonoBehaviour {    // Use this for initialization  void Start () {     }     // Update is called once per frame  void Update () {         if (isRotating)         {             executeRotate();         }     }       bool isRotating = false;       Quaternion definedRotation = new Quaternion(0, 0, 0,0);        Vector3 rotateVector = new Vector3(1,0,0);        float rotateVelocity = 0;     float accelerateDuration = 0;  float leftDuration = 0;  float rotateDuration = 0;        int rotateAxis = 0;  float angleRange = 0;  float deltaRotate = 0;//0;        // acceleration when it is in the accelerating process.     float rotateAcceleration = 0;       CTRotationType rotateType;     //int RotateType = 0;       private void initRotateArgument( float _initAngleRange, int _initRotateAxis, float _initRotateDuration)     {   rotateAxis = _initRotateAxis;         rotateDuration = _initRotateDuration;         leftDuration = _initRotateDuration;   angleRange = _initAngleRange;   rotateType = CTRotationType.Uniform;     }       public void RotateTo(float _angleRange, int _axis, float _duration)     {   print("in the rotateto");         isRotating = false;         rotateType = CTRotationType.Uniform;   //RotateType = 0;       initRotateArgument(_angleRange, _axis, _duration);       switch(rotateAxis)   {    case 0: //rotate around X axis    {     rotateVector = Vector3.right;     break;    }    case 1://rotate around Y axis    {     rotateVector = Vector3.up;     break;    }    case 2://rotate around Z axis    {     rotateVector = Vector3.forward;     break;    }    default:     break;   }       deltaRotate = angleRange/rotateDuration;             isRotating = true;     }       public void RotateTo(float _angleRange, int _axis, float _duration, float _accelerateDuration)     {         isRotating = false;         rotateType = CTRotationType.AccelerateUniformly;   //RotateType = 1;     rotateAcceleration = 1/((rotateDuration - accelerateDuration)*accelerateDuration);         initRotateArgument(_angleRange, _axis, _duration);       switch(rotateAxis)   {    case 0: //rotate around X axis    {     rotateVector = Vector3.right;     break;    }    case 1://rotate around Y axis    {     rotateVector = Vector3.up;     break;    }    case 2://rotate around Z axis    {     rotateVector = Vector3.forward;     break;    }    default:     break;   }           accelerateDuration = _accelerateDuration;          //   deltaRotate = angleRange/(_duration - _accelerateDuration*2);           isRotating = true;     }       void executeRotate()     {         switch (rotateType)         {             //case 0://CTMoveType.Uniform:    case CTRotationType.Uniform:                 uniformRotate();                 break;               //case 1://CTMoveType.AccelerateUniformly:    case CTRotationType.AccelerateUniformly:                 accelerateRotate();                 break;         }                  leftDuration -= Time.deltaTime;        /* if (leftDuration <= 0)         {             transform.position = targetPosition;             isMoving = false;         }*/     }       private void accelerateRotate()     {   print(leftDuration);         if (leftDuration > (rotateDuration - accelerateDuration))         {    rotateVelocity = (float)((angleRange*(rotateDuration - leftDuration))*rotateAcceleration);           //  transform.Rotate(rotateVelocity * Time.deltaTime*rotateVector, Space.World);    transform.Rotate(rotateVelocity * rotateVector*Time.deltaTime, Space.World);         }         else if (leftDuration > accelerateDuration)         {    rotateVelocity = (float)((angleRange*accelerateDuration)*rotateAcceleration);             transform.Rotate(rotateVelocity*rotateVector*Time.deltaTime, Space.World);         }         else if (leftDuration > 0)         {    rotateVelocity= (float)((angleRange*leftDuration)*rotateAcceleration);    transform.Rotate(rotateVelocity*rotateVector*Time.deltaTime, Space.World);         }   else    isRotating = false;     }       private void uniformRotate()     {   print(leftDuration);   //if(leftDuration)   if(leftDuration > 0)   {    transform.Rotate(rotateVector*deltaRotate*Time.deltaTime, Space.World);    //transform.Rotate(rotateVector * Time.deltaTime*deltaRotate, Space.World);   }   else    isRotating = false;     } }

 

第三个文件，测试脚本

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using UnityEngine; using System.Collections;   public class TestRotationScript : MonoBehaviour {    // Use this for initialization  void Start () {     }     // Update is called once per frame  void Update () {          }    void OnGUI ()     {   CTRotation ttscript;   CTChangeAlpha colorScript;   GameObject testObject = GameObject.Find("TestCube");         //Component testObjectScript = testObject.GetComponent("CRotation");         ttscript = (CTRotation)testObject.GetComponent("CTRotation");   colorScript = (CTChangeAlpha)testObject.GetComponent("CTChangeAlpha");        if (GUI.Button (new Rect (20,40,80,20), "UniRotate")) {        ttscript.RotateTo(3600f, 2, 2f);   }        if(GUI.Button(new Rect(20,60,80,20),"AccRotate")){   ttscript.RotateTo(3600f, 2, 2f, 0.5f);    }         if(GUI.Button(new Rect(20,80,80,20),"Color")){      colorScript.ColorTo(2,5.0f);     }     } }

其中：第一个和第二脚本赋给目标物体；第三个脚本赋给任何一个物体作为测试物体使用

 

代码目的是方便外部调用和函数重用；注意isRotating参数的使用