打飞碟小游戏
这次的主要任务是写一个打飞碟的小游戏，熟悉一下之前的MVC模式和动作分离，可以复用一部分前面的代码。
游戏场景截图
这次建立了一个简单的天空盒和地面。场记依旧加载到空对象GameObject上，并且控制飞碟加载。
代码组织结构
-
这次代码的核心是Disk和DiskFactory，也就是用工厂模式来控制物体的产生和复用。
- Disk类：储存了一些基本属性，并且可以通过这些属性直接修改gameObject的属性。
public class Disk : MonoBehaviour { public Vector3 StartPoint { get { return gameObject.transform.position; } set { gameObject.transform.position = value; } } public Color color { get { return gameObject.GetComponent().material.color; } set { gameObject.GetComponent ().material.color = value; } } public float speed { get;set; } public Vector3 Direction { get { return Direction; } set { gameObject.transform.Rotate(value); } } } - DiskFactory类：Disk的道具工厂，减少游戏对象的销毁次数，复用游戏对象，且屏蔽创建和销毁的业务逻辑，使程序易于扩展。具体在这个代码中，DiskFactory还负责在生产Disk时随机指定起始位置，方向，速度，颜色。
public class DiskFactory { //开始时继承了MonoBehaviour后来发现不继承也可以
public GameObject diskPrefab;
public static DiskFactory DF = new DiskFactory();
private Dictionary used = new Dictionary();//used是用来保存正在使用的飞碟
private List free = new List();//free是用来保存未激活的飞碟
private DiskFactory()
{
diskPrefab = GameObject.Instantiate(Resources.Load("Prefabs/disk"));//获取预制的游戏对象
diskPrefab.AddComponent();
diskPrefab.SetActive(false);
}
public void FreeDisk()
{
foreach (Disk x in used.Values)
{
if (!x.gameObject.activeSelf)
{
free.Add(x);
used.Remove(x.GetInstanceID());
return;
}
}
}
public Disk GetDisk(int round)
{
FreeDisk();
GameObject newDisk = null;
Disk diskdata;
if (free.Count > 0)
{
//从之前生产的Disk中拿出可用的
newDisk = free[0].gameObject;
free.Remove(free[0]);
}
else
{
//克隆预制对象，生产新Disk
newDisk = GameObject.Instantiate(diskPrefab, Vector3.zero, Quaternion.identity);
}
newDisk.SetActive(true);
diskdata = newDisk.AddComponent();
int swith;
/**
* 根据回合数来生成相应的飞碟,难度逐渐增加。
*/
float s;
if (round == 1)
{
swith = Random.Range(0, 3);
s = Random.Range(30, 40);
}
else if (round == 2)
{
swith = Random.Range(0, 4);
s = Random.Range(40, 50);
}
else {
swith = Random.Range(0, 6);
s = Random.Range(50, 60);
}
switch (swith)
{
case 0:
{
diskdata.color = Color.yellow;
diskdata.speed = s;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(-130, -110), Random.Range(30,90), Random.Range(110,140));
break;
}
case 1:
{
diskdata.color = Color.red;
diskdata.speed = s + 10;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(-130, -110), Random.Range(30, 80), Random.Range(110, 130));
break;
}
case 2:
{
diskdata.color = Color.black;
diskdata.speed = s + 15;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(-130,-110), Random.Range(30, 70), Random.Range(90, 120));
break;
}
case 3:
{
diskdata.color = Color.yellow;
diskdata.speed = -s;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(130, 110), Random.Range(30, 90), Random.Range(110, 140));
break;
}
case 4:
{
diskdata.color = Color.red;
diskdata.speed = -s - 10;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(130, 110), Random.Range(30, 80), Random.Range(110, 130));
break;
}
case 5:
{
diskdata.color = Color.black;
diskdata.speed = -s - 15;
float RanX = UnityEngine.Random.Range(-1f, 1f) < 0 ? -1 : 1;
diskdata.Direction = new Vector3(RanX, 1, 0);
diskdata.StartPoint = new Vector3(Random.Range(130, 110), Random.Range(30, 70), Random.Range(90, 120));
break;
}
}
used.Add(diskdata.GetInstanceID(), diskdata); //添加到使用中
diskdata.name = diskdata.GetInstanceID().ToString();
return diskdata;
}
} -
上次已经写过了运动分离版的牧师与魔鬼了，这次可以将一部分运动分离的代码直接复用，主要的修改就是重写MoveToAction使Disk做类似有水平初速自由落体的运动（其实可以用刚体属性然后添加重力，此处我为了少修改代码而没有选择使用），然后重写一下具体在这个场景中的CCActionManager类。下面是重写的代码：
- 重写的MoveToAction类：
public class CCMoveToAction : SSAction { public float speedx; public float speedy = 0; private CCMoveToAction() { } public static CCMoveToAction getAction(float speedx) { CCMoveToAction action = CreateInstance(); action.speedx = speedx; return action; } public override void Update() { //模拟加速度为10的抛物线运动 this.transform.position += new Vector3(speedx*Time.deltaTime, -speedy*Time.deltaTime+(float)-0.5*10*Time.deltaTime*Time.deltaTime,0); speedy += 10*Time.deltaTime; if (transform.position.y <= 1)//被点击和运动到地面都满足回收条件 { destroy = true; CallBack.SSActionCallback(this); } } public override void Start() { } } - 重写的CCActionManager类：
using Interfaces; public class CCActionManager : SSActionManager, SSActionCallback { int count = 0;//记录所有在移动的碟子的数量 public SSActionEventType Complete = SSActionEventType.Completed; public void MoveDisk(Disk Disk) { count++; Complete = SSActionEventType.Started; CCMoveToAction action = CCMoveToAction.getAction(Disk.speed); addAction(Disk.gameObject,action,this); } public void SSActionCallback(SSAction source) //运动事件结束后的回调函数 { count--; Complete = SSActionEventType.Completed; source.gameObject.SetActive(false); } public bool IsAllFinished() //主要为了防止游戏结束时场景还有对象但是GUI按钮已经加载出来 { if (count == 0) return true; else return false; } } -
重写一下Interfaces，根据交互的需要定义函数。
namespace Interfaces { public interface ISceneController { void LoadResources(); } public interface UserAction { void Hit(Vector3 pos); // 发生点击事件，传送点击位置给场记 void Restart();//重新开始游戏 int GetScore(); bool RoundStop(); void RoundPlus(); } public enum SSActionEventType : int { Started, Completed } public interface SSActionCallback { void SSActionCallback(SSAction source); } } -
最后最重要的就是重写场记了，导演和之前还是一样的。
using System.Collections; using System.Collections.Generic; using UnityEngine; using Interfaces; public class FirstSceneController : MonoBehaviour, ISceneController, UserAction { int score = 0; int round = 1; int tral = 0; bool start = false; CCActionManager Manager; DiskFactory DF; void Awake() { SSDirector director = SSDirector.getInstance(); director.currentScenceController = this; DF = DiskFactory.DF; Manager = GetComponent(); } // Use this for initialization void Start () { } // Update is called once per frame int count = 0; void Update () { if(start == true) { count++; if (count >= 80) { count = 0; if(DF == null) { Debug.LogWarning("DF is NUll!"); return; } tral++; Disk d = DF.GetDisk(round); Manager.MoveDisk(d); if (tral == 10) { round++; tral = 0; } } } } public void LoadResources() { } public void Hit(Vector3 pos) { Ray ray = Camera.main.ScreenPointToRay(pos); RaycastHit[] hits; hits = Physics.RaycastAll(ray); for (int i = 0; i < hits.Length; i++) { RaycastHit hit = hits[i]; if (hit.collider.gameObject.GetComponent () != null) { Color c = hit.collider.gameObject.GetComponent ().material.color; if (c == Color.yellow) score += 1; if (c == Color.red) score += 2; if (c == Color.black) score += 3; hit.collider.gameObject.transform.position = new Vector3(0, -5, 0); } } } public int GetScore() { return score; } public void Restart() { score = 0; round = 1; start = true; } public bool RoundStop() { if (round > 3) { start = false; return Manager.IsAllFinished(); } else return false; } public int GetRound() { return round; } } - 用户界面GUI，这次GUI还算简单，主要加了显示分数，时间，以及轮次的面板。
public class InterfaceGUI : MonoBehaviour {
UserAction UserActionController;
public GameObject t;
bool ss = false;
float S;
float Now;
int round = 1;
// Use this for initialization
void Start () {
UserActionController = SSDirector.getInstance().currentScenceController as UserAction;
S = Time.time;
}
private void OnGUI()
{
if(!ss) S = Time.time;
GUI.Label(new Rect(1000, 50, 500, 500),"Score: " + UserActionController.GetScore().ToString() + " Time: " + ((int)(Time.time - S)).ToString() + " Round: " + round );
if (!ss && GUI.Button(new Rect(Screen.width / 2 - 30, Screen.height / 2 - 30, 100, 50), "Start"))
{
S = Time.time;
ss = true;
UserActionController.Restart();
}
if (ss)
{
round = UserActionController.GetRound();
if (Input.GetButtonDown("Fire1"))
{
Vector3 pos = Input.mousePosition;
UserActionController.Hit(pos);
}
if (round > 3)
{
round = 3;
if (UserActionController.RoundStop())
{
ss = false;
}
}
}
}
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