【Unity】FlappyBird剖析－附源码

public class road : MonoBehaviour {	
	....
	// Update is called once per frame
	void Update () {
	 	Vector3 pos = trans.position;
		pos.x -= speed * Time.deltaTime;
		trans.position = pos;
		if(pos.x <= -1.6f - 3.35f*idx) {   //当道路移出屏幕后，从小调整其位置
			Vector3 pp = roads[idx%2].transform.position;
			pp.x += 3.35f;
			idx++;
			roads[idx%2].transform.position = pp;
			if(isBegin){
				roads[idx%2].GetComponent<roadGen>().gen();
			}
		}
	}

public class roadGen : MonoBehaviour {  
    public GameObject[] zhuzi;  
    public float down=3.8f, upper = 6.0f;     ...  
    public void gen() { // 一格道路有两个柱子  
        zhuzi[0].SetActive(true);  
        zhuzi[1].SetActive(true);  
        Vector3 p = zhuzi[0].transform.localPosition;    
        float vv = Random.value;  
        p.y = Mathf.Lerp(down, upper, vv);   
        zhuzi[0].transform.localPosition = p; //设置第一个柱子的位置  
  
        p = zhuzi[1].transform.localPosition;  
         vv = Random.value;  
        p.y = Mathf.Lerp(down, upper, vv);  
        zhuzi[1].transform.localPosition = p; //设置第二个柱子的位置
    }  
  
    public void hidden() {  
        zhuzi[0].SetActive(false);  
        zhuzi[1].SetActive(false);  
    }  
}  

大嘴唇的小鸟

using UnityEngine;
using System.Collections;

public class clider : MonoBehaviour {
	public score s;
	public int clideNum;
	public string tag;
	public bool isSuccess = false, isFail = false;

	// Use this for initialization
	void Start () {
		s = GameObject.Find("score").GetComponent<score>();
		clideNum = 0;
		tag = "";
		isSuccess = false;
		isFail = false;
	}
	
	// Update is called once per frame
	void Update () {
	}
	void OnTriggerEnter2D(Collider2D other) {

		if(other.gameObject.tag.Equals("success")) {
			if(!isSuccess) {
				print("===trigger enter==");
				isSuccess = true;
				s.success();
				print ("success");
			}
		} else if(!isFail) {
			print("===trigger enter==");
			isFail = true;
			s.fail();
			print ("fail");
		}
	}

	void OnTriggerExit2D(Collider2D other) {
		print("===trigger exit==");
		isSuccess = false;
	}

	void OnCollisionEnter2D(Collision2D other) { 

		if(other.gameObject.tag.Equals("success")) {
			if(!isSuccess) {
				print("===collision enter==");
				isSuccess = true;
				s.success();
			}
		} else if(!isFail) {
			print("===collision enter==");
			isFail = true;
			s.fail();
		}
	}
	void OnCollisionExit2D(Collision2D coll) {
		print("===collision exit==");
		isSuccess = false;
	}

	public void reset() {
		isSuccess = false;
		isFail = false;
	}
}

public class isReady : MonoBehaviour {  
    public GameObject road, bird;  
    // Use this for initialization  
    void Start () {  
      
    }  
      
    // Update is called once per frame  
    void Update () {  
        if(Input.GetButtonDown("Fire1")){ //用户触摸屏幕之后，就开始游戏了  
            gameObject.SetActive(false);  
            road.GetComponent<road>().isBegin = true;  
            bird.GetComponent<Rigidbody2D>().isKinematic = false;//欢迎页面，这里设置为true，使小鸟不响应重力，开始后要设置为false 
            bird.GetComponent<Animator>().enabled = false;  
        }  
    }  
}  

public class restart : MonoBehaviour {  
    public Camera cam2d;  
    public GameObject ready;   
      
    void Update () {  
        if(Input.GetButtonDown("Fire1")){   
            Collider2D h = Physics2D.OverlapPoint(cam2d.ScreenToWorldPoint(Input.mousePosition), (1<<LayerMask.NameToLayer("btn")));    
            if(h) {  // 如果点击play按钮  
                gameObject.SetActive(false);  
                Time.timeScale = 1;   
                ready.SetActive(true);  
                GameObject[] resets = GameObject.FindGameObjectsWithTag("needReset"); //查找所有tag为needReset的对象 
                foreach(GameObject r in resets) {  
                    r.BroadcastMessage("reset"); //调用其自身以及子对象中的代码中的reset函数来进行游戏的重置
                }  
            }    
        }  
    }