我的游戏开发笔记（一）：完善并把u3d自带的ThirdPersonController.js改成cs版本

刚开始学习u3d，u3d自带的ThirdPersonController.js实在是看得不太懂，而且动作实在太少了，想做一个动作类游戏都做不成。

今天初步把它改成了cs版本，并随便加了几个动作，以便后期使用。

每天奋斗一点点

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using UnityEngine;using System.Collections;public class ThirdPersonControl : MonoBehaviour {    #region 动作片段    public AnimationClip idleAnimation;    public AnimationClip walkAnimation;    public AnimationClip runAnimation;    public AnimationClip jumpPoseAnimation;    public AnimationClip jumpFallAnimation;    public AnimationClip kickAnimation;    public AnimationClip utimateAnimation;    private Animation _animation;     #endregion    #region 动作片段枚举值    enum CharacterState    {        Idle = 0,        Walking = 1,        Trotting = 2,        Running = 3,        Jumping = 4,        Falling = 5,        Kicking = 6,        Utimate = 7    }     #endregion    #region 最大限速    public float walkMaxAnimationSpeed = 0.75f;    public float trotMaxAnimationSpeed = 1.0f;    public float runMaxAnimationSpeed = 1.0f;    public float jumpAnimationSpeed = 1.15f;    public float landAnimationSpeed = 1.0f;    public float kickMaxAnimationSpeed = 0.8f;     #endregion    //判断游戏是否开始    public static int jug = 0;        //判断角色状态    private CharacterState _characterState;    #region 角色在做什么    // Are we jumping? (Initiated with jump button and not grounded yet)    //是否正在跳跃    public bool jumping = false;    private bool jumpingReachedApex = false;    //是否正在踢人    public bool kicking = false;    //是否正在放大    public bool utimating = false;    //各种状态    public bool slow = false;    #endregion    #region 记录动作开始时间以及各种参数    // When did the user start walking (Used for going into trot after a while)    //走路开始时间，一段时间后进入快跑状态    private float walkTimeStart = 0.0f;    // Last time the jump button was clicked down    //最后一次按“跳跃按键的时间”    private float lastJumpButtonTime = -10.0f;    //跳    private float lastJumpTime = -1.0f;    //踢    private float lastKickTime = -1.0f;    //绝技    private float lastUtimateTime = -0.1f;    // the height we jumped from (Used to determine for how long to apply extra jump power after jumping.)    //记录最后一次跳跃时的高度(高度过高会受伤之类的)    private float lastJumpStartHeight = 0.0f;    //绝技    private float lastUtimateStartHeight = 0.0f;    //落地    private float lastGroundedTime = 0.0f;    //跳跃参数    private float jumpRepeatTime = 0.05f;    private float jumpTimeout = 0.15f;    private float groundedTimeout = 0.25f;    //减速时间    public float slowTime=0.0f;    #endregion    #region 角色基本属性，可以外部修改    // The speed when walking    public float walkSpeed = 2.0f;    // after trotAfterSeconds of walking we trot with trotSpeed    public float trotSpeed = 4.0f;    // when pressing "Fire3" button (cmd) we start running    public float runSpeed = 6.0f;    public float kickSpeed = 3.0f;    //????    public float inAirControlAcceleration = 3.0f;    // How high do we jump when pressing jump and letting go immediately    public float jumpHeight = 0.5f;    // The gravity for the character    public float gravity = 20.0f;    // The gravity in controlled descent mode    public float speedSmoothing = 10.0f;    public float rotateSpeed = 500.0f;    public float trotAfterSeconds = 3.0f;    //可跳与否    public bool canJump = true;    #endregion    #region 各种私有变量    // The camera doesnt start following the target immediately but waits for a split second to avoid too much waving around.    private float lockCameraTimer = 0.0f;    // The current move direction in x-z    private Vector3 moveDirection = Vector3.zero;    // The current vertical speed    private float verticalSpeed = 0.0f;    // The current x-z move speed    private float moveSpeed = 0.0f;    // The last collision flags returned from controller.Move    private CollisionFlags collisionFlags;    // Are we moving backwards (This locks the camera to not do a 180 degree spin)    //是否往回走    private bool movingBack = false;    // Is the user pressing any keys?    private bool isMoving = false;    private Vector3 inAirVelocity = Vector3.zero;    //是否可以控制    private bool isControllable = true;     #endregion    void Awake ()    {    moveDirection = transform.TransformDirection(Vector3.forward);    _animation = gameObject.GetComponent<Animation>();        //若没有animation组件则报错    if(!_animation)    Debug.Log("The character you would like to control doesn't have animations. Moving her might look weird.");        //检查各个Animation是否都存在对应动作    if(!idleAnimation) {    _animation = null;    Debug.Log("No idle animation found. Turning off animations.");    }    if(!walkAnimation) {    _animation = null;    Debug.Log("No walk animation found. Turning off animations.");    }    if(!runAnimation) {    _animation = null;    Debug.Log("No run animation found. Turning off animations.");    }    if(!jumpPoseAnimation && canJump) {    _animation = null;    Debug.Log("No jump animation found and the character has canJump enabled. Turning off animations.");    }        if(!jumpFallAnimation) {    _animation = null;    Debug.Log("No fall animation found and the character has canJump enabled. Turning off animations.");    }        if(!kickAnimation) {    _animation = null;    Debug.Log("No kick animation found. Turning off animations.");    }        if(!utimateAnimation) {    _animation = null;    Debug.Log("No utimate animation found. Turning off animations.");    }    }    void UpdateSmoothedMovementDirection ()    {        //找到主摄像机的位置    Transform cameraTransform = Camera.main.transform;        //与操作，返回值为bool型，1为在地上，0为在空中    bool grounded = IsGrounded();    // Forward vector relative to the camera along the x-z plane        //找到摄像机向前一步的向量，并把向量中的y置0    Vector3 forward = cameraTransform.TransformDirection(Vector3.forward);    forward.y = 0;    forward = forward.normalized;    // Right vector relative to the camera    // Always orthogonal to the forward vector        //跟着摄像机的移动方向往右走    Vector3 right = new Vector3(forward.z, 0, -forward.x);        //获得水平移动和垂直移动的float值    float v = Input.GetAxisRaw("Vertical");    float h = Input.GetAxisRaw("Horizontal");    // Are we moving backwards or looking backwards        //若垂直移动距离太小，movingBack值置为true，意思是已进行后移    if (v < -0.2)    movingBack = true;    else    movingBack = false;        //wasMoving存isMoving，表示是否正在移动    bool wasMoving = isMoving;        //或操作，若水平移动或者垂直移动的绝对值>0.1，则返回1，表示正在移动0    isMoving = Mathf.Abs (h) > 0.1 || Mathf.Abs (v) > 0.1;    // Target direction relative to the camera        //    Vector3 targetDirection = h * right + v * forward;    // Grounded controls        //若在地上    if (grounded && !kicking)    {    // Lock camera for short period when transitioning moving & standing still            //控制对应的ThirdPerson Camera 本游戏用不到    lockCameraTimer += Time.deltaTime;    if (isMoving != wasMoving)    lockCameraTimer = 0.0f;    // We store speed and direction seperately,    // so that when the character stands still we still have a valid forward direction    // moveDirection is always normalized, and we only update it if there is user input.    if (targetDirection != Vector3.zero)    {    // If we are really slow, just snap to the target direction    if (moveSpeed < walkSpeed * 0.9 && grounded)    {    moveDirection = targetDirection.normalized;    }    // Otherwise smoothly turn towards it    else    {    moveDirection = Vector3.RotateTowards(moveDirection, targetDirection, rotateSpeed * Mathf.Deg2Rad * Time.deltaTime, 1000);    moveDirection = moveDirection.normalized;    }    }    // Smooth the speed based on the current target direction    float curSmooth = speedSmoothing * Time.deltaTime;    // Choose target speed    //* We want to support analog input but make sure you cant walk faster diagonally than just forward or sideways    float targetSpeed = Mathf.Min(targetDirection.magnitude, 1.0f);    _characterState = CharacterState.Idle;    // Pick speed modifier    if (Input.GetKey (KeyCode.LeftShift) || Input.GetKey (KeyCode.RightShift))    {    targetSpeed *= runSpeed;    _characterState = CharacterState.Running;    }    else if (Time.time - trotAfterSeconds > walkTimeStart)    {    targetSpeed *= trotSpeed;    _characterState = CharacterState.Trotting;    }    else    {    targetSpeed *= walkSpeed;    _characterState = CharacterState.Walking;    }    moveSpeed = Mathf.Lerp(moveSpeed, targetSpeed, curSmooth);    // Reset walk time start when we slow down    if (moveSpeed < walkSpeed * 0.3)    walkTimeStart = Time.time;    }    // In air controls    else    {    // Lock camera while in air    if (jumping)    lockCameraTimer = 0.0f;    if (isMoving)    inAirVelocity += targetDirection.normalized * Time.deltaTime * inAirControlAcceleration;    }    }    void ApplyJumping ()    {    // Prevent jumping too fast after each other        //设置一个时间间隔，这里为Time.time，在这间隔内不能连续跳跃    if (lastJumpTime + jumpRepeatTime > Time.time)    return;    if (IsGrounded()&&!utimating&&!kicking) {    // Jump    // - Only when pressing the button down    // - With a timeout so you can press the button slightly before landing            //若可以跳跃，则跳    if (canJump && Time.time < lastJumpButtonTime + jumpTimeout) {    verticalSpeed = CalculateJumpVerticalSpeed (jumpHeight);    SendMessage("DidJump", SendMessageOptions.DontRequireReceiver);    }    }    }    void ApplyGravity ()    {        //若角色处于可控状态    if (isControllable&&!utimating)// don't move player at all if not controllable.    {    // Apply gravity    var jumpButton = Input.GetButton("Jump");    // When we reach the apex of the jump we send out a message            //若jumping、并没有达到跳跃最高点、垂直速度<0    if (jumping && !jumpingReachedApex && verticalSpeed <= 0.0)    {                //把角色已到达最高点置为真    jumpingReachedApex = true;                //执行DidJumpReachApex，这里没有    SendMessage("DidJumpReachApex", SendMessageOptions.DontRequireReceiver);    }                //若已到达地面    if (IsGrounded ())            //垂直速度置0    verticalSpeed = 0.0f;    else            //若没到达地面，设置下落速度    verticalSpeed -= gravity * Time.deltaTime;    }    }    void ApplyKicking()    {    if (lastKickTime + 0.5 > Time.time)    return;        if (IsGrounded()&&!kicking)         {    SendMessage("DidKick", SendMessageOptions.DontRequireReceiver);        }    }    void ApplyUtimating()    {    if (lastUtimateTime + 0.5 > Time.time)    return;        if(!IsGrounded())        {            SendMessage("DidUtimate", SendMessageOptions.DontRequireReceiver);           }    }    float CalculateJumpVerticalSpeed (float targetJumpHeight)    {    // From the jump height and gravity we deduce the upwards speed     // for the character to reach at the apex.    return Mathf.Sqrt(2 * targetJumpHeight * gravity);    }    void DidJump ()    {    jumping = true;    jumpingReachedApex = false;    lastJumpTime = Time.time;    lastJumpStartHeight = transform.position.y;    lastJumpButtonTime = -10;    _characterState = CharacterState.Jumping;    }    void DidKick()    {        kicking = true;         lastKickTime = Time.time;        _characterState = CharacterState.Kicking;    }    void DidUtimate()    {        utimating=true;        lastUtimateTime = Time.time;        lastUtimateStartHeight = transform.position.y;        _characterState = CharacterState.Utimate;    }    void Update() {    if(jug==1){        //如果不能控制，则重置输入轴    if (!isControllable)    {    // kill all inputs if not controllable.    Input.ResetInputAxes();    }        //如果按下跳（就是空格）键，把最后起跳时间记录下来    if (Input.GetButtonDown ("Jump"))    {    lastJumpButtonTime = Time.time;    }        //这东西是对对应ThirdPersonCamera的摄像机的位置进行修正，本游戏用不到    UpdateSmoothedMovementDirection();    // Apply gravity    // - extra power jump modifies gravity    // - controlledDescent mode modifies gravity    ApplyGravity ();    // Apply jumping logic    ApplyJumping ();        if(Input.GetKeyDown(KeyCode.K))        {            ApplyUtimating();        }        if(Input.GetKeyDown(KeyCode.J))        {            ApplyKicking();        }    // Calculate actual motion        //计算角色的移动向量    var movement = moveDirection * moveSpeed +  new Vector3 (0, verticalSpeed, 0) + inAirVelocity;    movement *= Time.deltaTime;    // Move the controller        //移动角色    CharacterController controller = gameObject.GetComponent<CharacterController>();    collisionFlags = controller.Move(movement);    // ANIMATION sector        //若每一个动作片段都存在    if(_animation) {            //若角色的状态处于跳跃状态    if(_characterState == CharacterState.Jumping)     {                //若没到达跳跃顶峰    if(!jumpingReachedApex) {                    //执行跳跃动作    _animation[jumpPoseAnimation.name].speed = jumpAnimationSpeed;                    //重复执行这一动作直到结束    _animation[jumpPoseAnimation.name].wrapMode = WrapMode.ClampForever;    _animation.CrossFade(jumpPoseAnimation.name);    } else {                //若已到达顶峰                    //执行下落动作    _animation[jumpFallAnimation.name].speed = -landAnimationSpeed;                    //重复执行这一动作直到结束    _animation[jumpFallAnimation.name].wrapMode = WrapMode.ClampForever;    _animation.CrossFade(jumpFallAnimation.name);    }    }             else if(_characterState == CharacterState.Kicking)            {            //若处于踢人状态                if(Time.time - lastKickTime<0.8)                {                    _animation[kickAnimation.name].speed = kickMaxAnimationSpeed;        _animation[kickAnimation.name].wrapMode = WrapMode.Loop;        _animation.CrossFade(kickAnimation.name);                }else                {                    //lastKickTime = Time.time;                    kicking = false;                }            }            else if(_characterState == CharacterState.Utimate)            {                //若处于放大招状态                if(Time.time - lastUtimateTime<0.5)                {                    //_animation[utimateAnimation.name].speed = jumpAnimationSpeed;                    Vector3 newY = transform.position;                    newY.y = lastUtimateStartHeight;                    transform.position = newY;                _animation[utimateAnimation.name].wrapMode = WrapMode.ClampForever;                _animation.CrossFade(utimateAnimation.name);                    verticalSpeed -= gravity * Time.deltaTime*0.5f;                                 }else{                    utimating=false;                    jumpingReachedApex = true;                    _characterState = CharacterState.Jumping;                }            }    else     {                //若不处于跳跃状态                //若角色的运行向量开方小于0.1，执行Idle动作    if(controller.velocity.sqrMagnitude < 0.1) {    _animation.CrossFade(idleAnimation.name);    }    else     {                //若角色的运行向量开方大于0.1                    //若角色处于奔跑状态    if(_characterState == CharacterState.Running) {    _animation[runAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, runMaxAnimationSpeed);    _animation.CrossFade(runAnimation.name);    }                    //若处于快步走状态    else if(_characterState == CharacterState.Trotting) {    _animation[walkAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, trotMaxAnimationSpeed);    _animation.CrossFade(walkAnimation.name);    }                    //若处于走路状态    else if(_characterState == CharacterState.Walking) {    _animation[walkAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, walkMaxAnimationSpeed);    _animation.CrossFade(walkAnimation.name);    }    }    }    }    // ANIMATION sector    // Set rotation to the move direction    if (IsGrounded())    {    transform.rotation = Quaternion.LookRotation(moveDirection);    }    else    {    var xzMove = movement;    xzMove.y = 0;    if (xzMove.sqrMagnitude > 0.001)    {    transform.rotation = Quaternion.LookRotation(xzMove);    }    }    // We are in jump mode but just became grounded    if (IsGrounded())    {    lastGroundedTime = Time.time;    inAirVelocity = Vector3.zero;    if (jumping)    {    jumping = false;    SendMessage("DidLand", SendMessageOptions.DontRequireReceiver);    }    }        }    }    void OnControllerColliderHit (ControllerColliderHit hit )    {    //Debug.DrawRay(hit.point, hit.normal);    if (hit.moveDirection.y > 0.01)     return;    }    float GetSpeed () {    return moveSpeed;    }    bool IsJumping () {    return jumping;    }    bool IsGrounded () {    return (collisionFlags & CollisionFlags.CollidedBelow) != 0;    }    Vector3 GetDirection () {    return moveDirection;    }    bool IsMovingBackwards () {    return movingBack;    }    float GetLockCameraTimer ()     {    return lockCameraTimer;    }    bool IsMoving ()    {    return Mathf.Abs(Input.GetAxisRaw("Vertical")) + Mathf.Abs(Input.GetAxisRaw("Horizontal")) > 0.5;    }    bool HasJumpReachedApex ()    {    return jumpingReachedApex;    }    bool IsGroundedWithTimeout ()    {    return lastGroundedTime + groundedTimeout > Time.time;    }    void Reset ()    {    gameObject.tag = "Player";    }}

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存此记录我的游戏开发过程。