Unity GoldGame小游戏实现（Collision碰撞检测）

游戏界面：

游戏实现思路：

游戏开始随机生成5个Box

键盘输入控制Player移动 当Player碰撞到物体 检测物体身上标签 

如果Tag为Box则Box销毁 在其位置生成一个Gold

如果Tag为Gold则Gold销毁 得分+1

游戏实现过程：

所需物体： Box Gold（Prefabs）用于实例化、Player、Text（计算得分）CreatBOx（空物体，控制Box生成）

所需脚本：

Gold  挂载在预制体Gold上，实现金币自动旋转

using UnityEngine;
using System.Collections;

public class Gold : MonoBehaviour {

    private Transform transform;
	void Start () {
        transform = gameObject.GetComponent<Transform>();
	}
	void Update () {
       //使物体旋转
        transform.Rotate(Vector3.left,5);
	}
}

Box 挂载在预制体Box上 实现物体生成后3-5s内销毁

using UnityEngine;
using System.Collections;

public class Box : MonoBehaviour {

	// Use this for initialization
	void Start () {
        //销毁物体 随机3-5s
        GameObject.Destroy(gameObject, Random.Range(3, 5));
	}
	
}

CreatBox 挂载在物体CreatBox上 实现Box的生成

using UnityEngine;
using System.Collections;

public class CreatBox : MonoBehaviour {

    public GameObject prefabs;
	void Start () {
        //调用函数 开始3s后调用 每隔3s执行一次
        InvokeRepeating("Creatbox", 3, 3);
	}
    void Creatbox() {
        for (int i = 0; i < 5; i++)
        {
            //实例化对象（预制体，随机位置，不旋转）
            GameObject.Instantiate(prefabs,new Vector3(Random.Range(-4.5f,4.5f),5, Random.Range(-4.5f, 4.5f)),Quaternion.identity);
        }
    }
}

Play 挂载在物体Palyer上 控制物体移动 及碰撞检测及得分

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Play: MonoBehaviour
{
    private Rigidbody rigidbody;
    public GameObject gold;
    public Text text;
    int Score = 0;
    void Start()
    {
        rigidbody = gameObject.GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update()
    {
        //输入检测 给Rigidbody添加力 实现物体移动 
        if (Input.GetKey(KeyCode.W))
        {
            rigidbody.AddForce(Vector3.forward * 10, ForceMode.Force);
        }
        if (Input.GetKey(KeyCode.S))
        {
            rigidbody.AddForce(Vector3.back * 10, ForceMode.Force);
        }
        if (Input.GetKey(KeyCode.A))
        {
            rigidbody.AddForce(Vector3.left * 10, ForceMode.Force);
        }
        if (Input.GetKey(KeyCode.D))
        {
            rigidbody.AddForce(Vector3.right * 10, ForceMode.Force);
        }
    }
    private void OnCollisionEnter(Collision collision)
    {
        //碰撞检测 
        /*Box就销毁盒子 然后实例化金币
         * Gold就得分+1
         */
        if (collision.gameObject.tag == "Box")
        {
            print("1");
            Vector3 vector = collision.transform.position;
            print("2");
            GameObject.Destroy(collision.gameObject);
            GameObject.Instantiate(gold, vector + Vector3.forward, Quaternion.identity);
        }
        if (collision.gameObject.tag == "Gold")
        {
            GameObject.Destroy(collision.gameObject);
            Score++;
            text.text = "得分：" + Score;

        }
    }
}