贪吃蛇游戏

先建造一个场景 加入背景 灯光和蛇头 在四周建立Empty添加Boxcollider作为边界 之后将食物和蛇身做成预制件

制作游戏结束场景，添加一个text文本改为“贪吃蛇游戏，点击鼠标左键继续”

建立脚本添加在文字上

	using System.Collections;
	using System.Collections.Generic;
	using UnityEngine;
	using UnityEngine.SceneManagement;

	public class SnakeUI : MonoBehaviour {

		// Use this for initialization
		void Start () {
			
		}

		// Update is called once per frame
		void Update () {
			if(Input.GetMouseButtonDown(0))
	      {
				SceneManager.LoadScene(1);
	       }
		}
	}

给食物添加脚本使其随机在地图上生成

	using System.Collections;
	using System.Collections.Generic;
	using UnityEngine;

	public class FoodCreat : MonoBehaviour {
		public GameObject s_food;
		public int x_limit = 30;
		public int y_limit = 16;
		void Food()
		{
			int x = Random.Range(-x_limit, x_limit);
			int y = Random.Range(-y_limit, y_limit);
			Instantiate(s_food, new Vector2(x, y), Quaternion.identity);
		}
		// Use this for initialization
		void Start () {
			InvokeRepeating("Food",2,3f);
		}

		// Update is called once per frame
		void Update () {

		}
	}

蛇头的脚本，包括身体的移动，碰撞检测

	using System.Collections;
	using System.Collections.Generic;
	using UnityEngine;
	using System.Linq;
	using UnityEngine.SceneManagement;
	public class SnakeMove : MonoBehaviour
	{
		List<Transform> body = new List<Transform>();
		Vector2 direction = Vector2.up;
		public GameObject snakeBody;
		private bool flag;
		float speed = 0.3f;
		void Move()
		{
			Vector2 position = transform.position;


			if (flag)
			{
				GameObject bodypfb = (GameObject)Instantiate(snakeBody, position, Quaternion.identity);
				body.Insert(0, bodypfb.transform);
				flag = false;
			}
			else if (body.Count > 0)
			{
				body.Last().position = position;
				body.Insert(0, body.Last().transform);
				body.RemoveAt(body.Count - 1);
			}
			this.transform.Translate(direction);
		}
		// Use this for initialization
		void Start()
		{
			InvokeRepeating("Move", speed, speed);
		}

		// Update is called once per frame
		void Update()
		{
			if (Input.GetKeyDown(KeyCode.W) || (Input.GetKeyDown(KeyCode.UpArrow)))
			{
				direction = Vector2.up;
			}
			else if (Input.GetKeyDown(KeyCode.S) || (Input.GetKeyDown(KeyCode.DownArrow)))
			{
				direction = Vector2.down;
			}
			else if (Input.GetKeyDown(KeyCode.A) || (Input.GetKeyDown(KeyCode.LeftArrow)))
			{
				direction = Vector2.left;
			}
			else if (Input.GetKeyDown(KeyCode.D) || (Input.GetKeyDown(KeyCode.RightArrow)))
			{
				direction = Vector2.right;
			}
		}

	void OnTriggerEnter(Collider other)
		{
			if(other.gameObject.CompareTag("food"))
			{
				Destroy(other.gameObject);
				flag = true;
			}
			else
			{
				SceneManager.LoadScene(0);
			}
		}
	}

来源：oschina

链接：https://my.oschina.net/u/4462186/blog/3217460