先展示下執行效果圖：

這裡主要介紹主角的控制，敵人的AI邏輯，相機的跟隨

可以參考遊戲原始碼來分析點選開啟連結

一.主角的控制

新增尋路元件，以及Animation動畫元件

CustomEvent.cs

using UnityEngine;
using System.Collections;

public class customEvent : MonoBehaviour {

	/// <summary>
	/// 尋路元件
	/// </summary>
	private NavMeshAgent nav;

	/// <summary>
	/// 動作元件
	/// </summary>
	private Animation ani;
	

	// Use this for initialization
	void Start ()
	{
		//獲取尋路元件
		nav=this.transform.GetComponent<NavMeshAgent>();
		//獲取動作元件
		ani=this.transform.GetComponent<Animation>();
	}


	// Update is called once per frame
	void Update () 
	{
		//按鍵
		if(Input.GetKey(KeyCode.Z))
		{
			nav.SetDestination(this.transform.position);

			ani.CrossFade("swordStrike1");
		}
		if(Input.GetKey(KeyCode.X))
		{
			nav.SetDestination(this.transform.position);

			ani.CrossFade("swordStrike2");
		}
		if(Input.GetKey(KeyCode.C))
		{
			nav.SetDestination(this.transform.position);

			ani.CrossFade("swordStrike3");
		}

		//按下滑鼠
		if (Input.GetMouseButtonDown (0)) {
			//玩家移動
			MoveCharactor (Input.mousePosition);
		}

		if(Vector3.Distance(this.transform.position,hit.point)<=0.1f)
		{
			//停止動作，恢復原來預設動作
			ReturnIdle();
		}
	}

	private RaycastHit hit;
	void MoveCharactor(Vector3 mousePos)
	{
		Ray ray = Camera.main.ScreenPointToRay (mousePos);

		//將變數hit回撥給函式，進行相應處理
		if(Physics.Raycast(ray,out hit))
		{
			if(hit.collider.CompareTag("terrain"))
			{
				//切換動作
				ani.CrossFade("runSword");

				//開始尋路
				nav.SetDestination(hit.point);
				nav.speed=5.0f;
			}
			if(hit.collider.CompareTag("Enemmy"))
			{
				Vector3 enemyPos = hit.transform.position;
				this.transform.rotation=Quaternion.LookRotation(enemyPos);

				nav.SetDestination(hit.point);
				nav.speed=6.0f;
			}
		}  
	}


	void ReturnIdle()
	{
		ani.CrossFade ("swordStrike3");
	}
	
}
 

敵人的AI邏輯與我之前上一篇文章類似參考

EnemyAI.cs

using UnityEngine;
using System.Collections;

public class EnemyAI : MonoBehaviour {

	/// <summary>
	/// 尋路元件
	/// </summary>
	private NavMeshAgent nav;

	/// <summary>
	/// 動作元件
	/// </summary>
	private Animation ani;

	/// <summary>
	/// 主角
	/// </summary>
	private Transform player;

	/// <summary>
	/// 主角與敵人的距離
	/// </summary>
	public float distance=15;

	/// <summary>
	///是否尋路狀態 
	/// </summary>
	private bool isFund=false;

	/// <summary>
	/// 隨機值
	/// </summary>
	private int RANDrange=20;

	/// <summary>
	/// 隨機位置
	/// </summary>
	Vector3 RandVector;

	// Use this for initialization
	void Start () 
	{
		//獲取尋路元件
		nav=this.transform.GetComponent<NavMeshAgent>();

		//獲取動作元件
		ani = this.transform.GetComponent<Animation> ();

		//獲取主角
		player = GameObject.FindGameObjectWithTag ("Player").transform;
	}
	
	// Update is called once per frame
	void Update () 
	{
		float m_distance = Vector3.Distance (this.transform.position, player.position);

		//敵人在視察範圍內
		if (m_distance <= distance) 
		{
			isFund=false;

			//面向主角
			//this.transform.rotation=Quaternion.LookRotation(player.position);

			if (m_distance <= player.GetComponent<NavMeshAgent> ().radius + nav.radius+4.0f) 
			{
				ani.CrossFade ("walk");
			} 
			else 
			{			
				ani.CrossFade ("run");

				//重新尋路
				nav.Resume();
				nav.SetDestination (player.position);
				nav.speed = 3.0f;
			}
		}
		//不在視察範圍內，敵人自動行走
		else 
		{
			if(!isFund)
			{
				isFund=true;

				RandVector=new Vector3(Random.Range(-RANDrange,RANDrange),0,Random.Range(-RANDrange,RANDrange))+this.transform.position;

				ani.CrossFade("walk");
				
				nav.SetDestination(RandVector);
			}
			if(Vector3.Distance(this.transform.position,RandVector)<=0.02f)
			{
				isFund=!isFund;
			}
		}
	}
}
 

三.相機的跟隨

（1）按下A和D鍵相機將繞著主角旋轉

（2）滾動滑鼠滑輪，將擴大和縮放場景

using UnityEngine;
using System.Collections;

public class CameraFollow : MonoBehaviour {

	/// <summary>
	/// 跟隨目標
	/// </summary>
	public Transform target;

	/// <summary>
	/// 平滑速度
	/// </summary>
	public float speed=3.6f;

	/// <summary>
	/// 攝像機與主角方位距離
	/// </summary>
	private Vector3 offset;

	// Use this for initialization
	void Start () 
	{
		offset = this.transform.position - target.position;
	}
	
	// Update is called once per frame
	void Update () 
	{
		if (Input.GetKey (KeyCode.A)) 
		{
			this.transform.RotateAround (target.transform.position, Vector3.up, Time.deltaTime * speed*2);
		}
		if (Input.GetKey (KeyCode.D)) 
		{
			this.transform.RotateAround (target.transform.position, Vector3.up, -Time.deltaTime * speed*2);
		}

		//平滑移動攝像機
		SmoothMoveCamera ();

		//滾動輪子
		if (Input.GetAxis ("Mouse ScrollWheel") < 0) 
		{
			if(Camera.main.fieldOfView<=80.0f)
			{
				Camera.main.fieldOfView+=5.0f;
			}
		}
		if (Input.GetAxis ("Mouse ScrollWheel") > 0)
		{
			if(Camera.main.fieldOfView>=20.0f)
			{
				Camera.main.fieldOfView-=5.0f;
			}
		}

	}


	void SmoothMoveCamera()
	{
		Vector3 cameraFrom = this.transform.position;
		Vector3 cameraTo = target.position + offset;
		this.transform.position =Vector3.Lerp (cameraFrom, cameraTo, Time.deltaTime*speed);
	}
}
 

本人也在尋找一份遊戲開發實習工作，如果大佬們需要開發人員，請把我帶走

作品的話可以私聊我哦！