Unity案例——滚球游戏

新建一个项目，在Assets里建立子文件夹并保存场景。首先建立一个Plane做为场景的地面并附上资源包里Background的材质，而后建立一个空的游戏对象，将其命名为Wall,在它的目录下建立4个Cube,调整它们的位置及大小以做为场景的墙体。接着建立一个Cube小方块，为了让小方块旋转起来，咱们须要编写一个脚本,代码以下：

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

public class RotatePickUp : MonoBehaviour {

	// Use this for initialization
	void Start () {
		
	}
	
	// Update is called once per frame
	void Update () {
		this.transform.Rotate(new Vector3(15,30,45)*Time.deltaTime);
	}
}

建立一个Sphere小球，为它添加一个刚体Rigidbody,编写一个脚本控制小球的移动，代码以下：

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

public class PlayerController : MonoBehaviour {
	public float speed;
	private Rigidbody rb;
	public Text countText;
	public Text winText;
	private int count;

	// Use this for initialization
	void Start () 
	{
		rb=GetComponent<Rigidbody>();
		count=0;
		winText.text="";
		SetCountText();
	}
    void FixedUpdate() 
	{
		float moveHorizontal=Input.GetAxis("Horizontal");
		float moveVertical=Input.GetAxis("Vertical");
		Vector3 movement=new Vector3(moveHorizontal,0,moveVertical);
		rb.AddForce(movement*speed);
	}
	
    void OnTriggerEnter(Collider other) 
	{
		if(other.gameObject.CompareTag ("Pick Up"))
		{
			other.gameObject.SetActive(false);
			count+=1;
			SetCountText();
		}
	}

	void SetCountText()
	{
		countText.text="Count:"+count.ToString();
		if(count>=12)
		{
			winText.text="You Win";
		}
	}
	// Update is called once per frame
	void Update () {
		
	}
}

关于小球的参数设置：

建立一个脚原本使摄像机跟着小球一块儿移动，代码以下：

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

public class CameraController : MonoBehaviour 
{
     public GameObject player;
	 private Vector3 offset;
	 public GameObject pickupPfb;
	 private GameObject[] obj1;
	 private int objCount=0;
	// Use this for initialization
	void Start () 
	{
		offset=this.transform.position-player.transform.position;

        //自动生成12个小方块
		obj1=new GameObject[12];
		for(objCount=0;objCount<12;objCount++)
		{
			obj1[objCount]=GameObject.Instantiate(pickupPfb);
			obj1[objCount].name="pickup"+objCount.ToString();
			obj1[objCount].transform.position=new Vector3(4*Mathf.Sin(Mathf.PI/6*objCount),1,4*Mathf.Cos(Mathf.PI/6*objCount));
		}
	}
	void LateUpdate() 
	{
		this.transform.position=player.transform.position +offset;
	}
	
	// Update is called once per frame
	void Update () 
	{
		
	}
}

关于摄像机的参数设置：