Unity3d实现Flappy Bird游戏

本文实例为大家分享了Unity3d实现Flappy Bird的具体代码，供大家参考，具体内容如下

一、小鸟

在游戏中，小鸟并不做水平位移，而是通过障碍物的移动让小鸟有水平运动的感觉，小鸟只需要对鼠标的点击调整竖直加速度就可以了，同时加上水平旋转模仿原版的FlappyBird的运动。同时，还要对竖直位置进行判断，否则游戏不能正常结束。

这里贴上小鸟上附加的脚本代码

Player.cs

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {

private Rigidbody body;
public Vector3 jumpForce = new Vector3(0, 300, 0);
private bool state = true; //确保只执行一次
private int bestScore = 0;

// Use this for initialization
void Start () {

body = transform.GetComponent<Rigidbody>();  
}

void OnCollisionEnter(Collision collisionInfo)
{
 if (state)
 {
  //碰撞游戏结束
  state = false;
  Score.instance.state = false;
  AudioManager.instance.PlayHit();
  AudioManager.instance.PlayDie();
  Invoke("EndGame", 0.4f);
 }

}

// Update is called once per frame
void Update ()
{
 //下限
 if (transform.position.y < -20)
 {
  if (state)
  {
   state = false;
   Score.instance.state = false;
   AudioManager.instance.PlayDie();
   Invoke("EndGame", 0.4f);
  }
 }

//上限
 if (transform.position.y > 20)
 {
  if (state)
  {
   state = false;
   Score.instance.state = false;
   AudioManager.instance.PlayDie();
   Invoke("EndGame", 0.4f);
  }
 }
 //判断鼠标左键点击或者空格
 if (Input.GetKeyDown(KeyCode.Space)||Input.GetMouseButtonDown(0))
 {
  AudioManager.instance.PlayFly();
  body.velocity = Vector3.zero;
  //加速度
  body.AddForce(jumpForce);
  //控制旋转量
  this.transform.rotation = Quaternion.Euler(45, 270, 0);
 }  
 else
 {
   //旋转
  if (transform.rotation.eulerAngles.x >= 280||transform.rotation.eulerAngles.x<=50)
  {

transform.Rotate(-150 * Time.deltaTime, 0, 0);
  }
 }

}

public void EndGame()
{
 //保存最佳成绩
 PlayerPrefs.SetInt("PlayerScore", Score.instance.score);
 bestScore = PlayerPrefs.GetInt("PlayerBestScore");
 if (Score.instance.score > bestScore)
  bestScore = Score.instance.score;
 PlayerPrefs.SetInt("PlayerBestScore", bestScore);
 //跳转到结束场景
 Application.LoadLevel("End");
}

}

二、障碍物

障碍物只要定时产生，随机设定偏移量，然后添加向左运动的速度就行了，同时要设定自动销毁的时间，回收障碍物，否则内存占用会越来越大。

这里用了三个脚本，分别是上下障碍物和障碍物生成脚本。附加到一个空物体上就行了。

GenerateObstacle.cs

using UnityEngine;
using System.Collections;

public class GenrateObstacle : MonoBehaviour {

public GameObject obstacle;
public GameObject obstacle1;
public float startTime = 1f;
public float gapTime=1.5f;
public float gapDistance = 13;
private Vector3 gapVector;
private Vector3 midVector;
// Use this for initialization
void Start () {
 InvokeRepeating("InitiateObstacle", startTime, gapTime);
 gapVector = new Vector3(0, gapDistance / 2, 0);

}

void InitiateObstacle()
{
 midVector = new Vector3(8,Random.Range(-3.2f, 3.2f),0);

Instantiate(obstacle, midVector+gapVector,new Quaternion(0,0,180,0));
 Instantiate(obstacle1, midVector-gapVector, Quaternion.identity);

}
}

Obstacle.cs

using UnityEngine;
using System.Collections;

public class Obstacle : MonoBehaviour {

public float speed = -8f;
private Rigidbody body;
private Transform player;
private bool isPassed = false;
// Use this for initialization
void Start () {
 Destroy(this.gameObject, 4);
 body = this.GetComponent<Rigidbody>();
 body.velocity = new Vector3(speed, 0, 0);
 player = GameObject.FindGameObjectWithTag("Bird").transform;
}

// Update is called once per frame
void Update () {
 if (player.transform.position.x > transform.position.x && isPassed == false)
 {
  isPassed = true;

Score.instance.GetScore();
 }
}
}

Obstacle1.cs

using UnityEngine;
using System.Collections;

public class Obstacle1 : MonoBehaviour {
public float speed = -8f;
private Rigidbody body;
private Transform player;
private bool isPassed = false;
// Use this for initialization
void Start()
{
 Destroy(this.gameObject, 4);
 body = this.GetComponent<Rigidbody>();
 body.velocity = new Vector3(speed, 0, 0);
 player = GameObject.FindGameObjectWithTag("Bird").transform;
}

}

此外还有分数显示，最佳分数显示，音效等等，都是细节。

来源：https://blog.csdn.net/qq402335257/article/details/51591001