C#&Unity3D 角色跟随鼠标点击移动

首先，搭建好场景：导入角色控制器、导入SmoothFollow脚本、创建好地形、创建两个预设(用来在不同时间下克隆鼠标位置)、开光(打灯);

其次，理清思路：

最后，细节修改和编写脚本：

细节：角色控制器上的脚本ThirdPersonController(控制角色移动)和ThirdPersonController(控制相机跟随)关闭或者移;

将 SmoothFollow拖给相机，调整参数。

脚本：按照上面的构思去写，代码如下

using UnityEngine;
 
using System.Collections;
 
public class MouseMove : MonoBehaviour
 
{
 
public const int ANIMATION_IDLE = 0; //动画状态
 
public const int ANIMATION_WALK = 1;
 
public const int ANIMATION_RUN = 2;
 
private int AnimationState; //当前动画状态
 
private Vector3 targetPos; //存储鼠标点击在地形上的位置
 
public GameObject cube; //存储预设cube
 
public GameObject sphere; //存储预设sphere
 
void Start ()
 
{
 
AnimationState = ANIMATION_IDLE; //初始化动画状态为idle
 
//animation.wrapMode = WrapMode.Loop; //设置动画播放模式为循环播放
 
}
 
void Update ()
 
{
 
FindMouseHitPos(); //检测鼠标碰撞并获取位置方法
 
MoveState(); //检测动画状态方法
 
}
 
void FindMouseHitPos()
 
{
 
Ray myRay;
 
RaycastHit myHit;
 
myRay = Camera.main.ScreenPointToRay(Input.mousePosition);
 
if(Input.GetMouseButtonDown(0))
 
{
 
if(Physics.Raycast(myRay,out myHit))
 
{
 
targetPos = myHit.point;
 
transform.LookAt(new Vector3(targetPos.x,transform.position.y,targetPos.z));
 
Debug.DrawLine(myRay.GetPoint(0),targetPos,Color.red);
 
Event mouseHit = Event.current;
 
if(mouseHit.isMouse)
 
{
 
if(mouseHit.clickCount==1)
 
{
 
AnimationState = ANIMATION_WALK;
 
GameObject mycube = Instantiate(cube,targetPos,Quaternion.identity)as GameObject;
 
}
 
else if (mouseHit.clickCount == 2)
 
{
 
AnimationState = ANIMATION_RUN;
 
GameObject mysphere = Instantiate(sphere, targetPos, Quaternion.identity) as GameObject;
 
}
 
}
 
}
 
}
 
}
 
void MoveState()
 
{
 
switch(AnimationState)
 
{
 
case ANIMATION_IDLE:
 
//animation.CrossFade("idle",0.5f);
 
targetPos = transform.position;
 
animation.Play("idle");
 
print("idle");
 
break;
 
case ANIMATION_WALK:
 
//animation.CrossFade("walk",0.5f);
 
animation.Play("walk");
 
MoveTo(1.0f);
 
print("walk");
 
break;
 
case ANIMATION_RUN:
 
//animation.CrossFade("run",0.5f);
 
animation.Play("run");
 
MoveTo(4.0f);
 
print("run");
 
break;
 
}
 
}
 
void MoveTo(float XCspeed)
 
{
 
CharacterController myControl=gameObject.GetComponent();
 
//之所以选择1.2是因为角色的中心点与 碰撞点之间有高度差
 
if (Mathf.Abs(Vector3.Distance(targetPos, transform.position)) >= 1.2f) //之所以选择1.2是因为角色的中心点与
 
{
 
Vector3 moveself = transform.TransformDirection(Vector3.forward);
 
myControl.SimpleMove(moveself * XCspeed);
 
}
 
else
 
{
 
AnimationState = ANIMATION_IDLE;
 
}
 
}
 
}

总结，下次会在这个工程的基础上添加自动寻路的功能，即智慧的绕过障碍物。

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