Unity3D 改良行为控制脚本

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using UnityEngine;

using System.Collections;

public class FpsWalker_edit02 : MonoBehaviour

{

/// 类似于VRML的控制方式

/// ↑前进 ↓后退 →右转 ←左转

/// Ctrl + →右平移 Ctrl + ←左平移

/// 按住鼠标左键，可以通过鼠标上下左右转动视角

public float speed = 6.0f;

public float jumpSpeed = 8.0f;

public float gravity = 20.0f;

public bool MouseChange = ***e;

private Vector3 moveDirection = Vector3.zero;

private bool grounded = false;

void FixedUpdate()

{

if (grounded)

{

if (!(Input.GetKey(KeyCode.LeftControl)||Input.GetKey(KeyCode.RightControl))) //如果没有按下左Ctrl键

{

//只能前后平移

moveDirection = new Vector3(0, 0, Input.GetAxis("Vertical"));

moveDirection = transform.TransformDirection(moveDirection);

moveDirection *= speed;

}

else //

{

//可前后左右平移

moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));

moveDirection = transform.TransformDirection(moveDirection);

moveDirection *= speed;

}

if (Input.GetButton("Jump")) //跳跃

{

moveDirection.y = jumpSpeed;

}

}

//重力

moveDirection.y -= gravity * Time.deltaTime;

//移动controller

CharacterController controller = GetComponent("CharacterController") as CharacterController;

CollisionFlags flags = controller.Move(moveDirection * Time.deltaTime);

grounded = (flags & CollisionFlags.CollidedBelow) != 0; //当controller处在空中间，grounded为false，即跳动和行走都无效

//鼠标控制视角

// if (Input.GetMouseButton(0) && (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl)) && MouseChange) //如果按下鼠标左键并且鼠标MouseChange为真

if (Input.GetMouseButton(0) && MouseChange) //如果按下鼠标左键并且鼠标MouseChange为真

{

///鼠标旋转视角部分

///

if (axes == RotationAxes.MouseXAndY)

{

// Read the mouse input axis

//这里，rotationX和rotationY用来保存对象现有的角度，同时还将鼠标的移动中计算出增减的角度并合进来

rotationX += Input.GetAxis("Mouse X") * sensitivityX;

rotationY += Input.GetAxis("Mouse Y") * sensitivityY;

rotationX = ClampAngle(rotationX, minimumX, maximumX);

rotationY = ClampAngle(rotationY, minimumY, maximumY);

Quaternion xQuaternion = Quaternion.AngleAxis(rotationX, Vector3.up); //通过左右值和Vector3.up（作为以Y为旋转轴的向量值）求出左右旋转度的四元数值

Quaternion yQuaternion = Quaternion.AngleAxis(rotationY, Vector3.left); //通过上下值和Vector3.left（作为以X为旋转轴的向量值）求出上下旋转度的四元数值

//originalRotation = transform.localRotation;

transform.localRotation = originalRotation * xQuaternion * yQuaternion; //将上面求出来的左右和上下两个四元数值添加入角度中

}

else if (axes == RotationAxes.MouseX)

{

rotationX += Input.GetAxis("Mouse X") * sensitivityX;

rotationX = ClampAngle(rotationX, minimumX, maximumX);

Quaternion xQuaternion = Quaternion.AngleAxis(rotationX, Vector3.up);

transform.localRotation = originalRotation * xQuaternion;

}

else

{

rotationY += Input.GetAxis("Mouse Y") * sensitivityY;

rotationY = ClampAngle(rotationY, minimumY, maximumY);

Quaternion yQuaternion = Quaternion.AngleAxis(rotationY, Vector3.left);

transform.localRotation = originalRotation * yQuaternion;

}

}

else

{

///左右旋转

///并且没有按下左或右ctrl键时

if (!(Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl)))

{

Vector3 angle_temp = transform.eulerAngles;

angle_temp.y += Input.GetAxis("Horizontal") * sensitivityX * 0.3f;

rotationX = ClampAngle(angle_temp.y, minimumX, maximumX);

//rotationY = ClampAngle(rotationY, minimumY, maximumY);

transform.eulerAngles = angle_temp;

}

//键盘上下键控制俯仰角

//else

//{

// Vector3 angle_temp = transform.eulerAngles;

// angle_temp.x += Input.GetAxis("Vertical") * -1 * sensitivityY * 0.3f;

// rotationY = ClampAngle(angle_temp.x , minimumY , maximumY);

// transform.eulerAngles = angle_temp;

//}

}

}

public enum RotationAxes { MouseXAndY = 0, MouseX = 1, MouseY = 2 }

public RotationAxes axes = RotationAxes.MouseXAndY;

public float sensitivityX = 15F;

public float sensitivityY = 15F;

public float minimumX = -360F;

public float maximumX = 360F;

public float minimumY = -60F;

public float maximumY = 60F;

public float rotationX = 0F;

public float rotationY = 0F;

Quaternion originalRotation;

void Start()

{

// Make the rigid body not change rotation

//使刚体不会改变角度

if (rigidbody)

rigidbody.freezeRotation = ***e;

//originalRotation = transform.localRotation;     //BUG处

originalRotation = new Quaternion(0f, 0f, 0f, 1f);     //修正代码

}

public static float ClampAngle(float angle, float min, float max)

{

if (angle < -360F)

angle += 360F;

if (angle > 360F)

angle -= 360F;

return Mathf.Clamp(angle, min, max);

}

}

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