制作菜单栏、选择题、搓组合键、小僵尸-unity3D游戏开发入门

0.键盘事件
任务一：编写菜单栏
任务二：做一道单项选择题
任务三：写多项选择题（多选错选不得分，少选得一半分，80分以上赏朵小红花）
任务四：键盘键响应通过敲ASDW方向键在屏幕上打出相应方向箭头
任务五：基于任务四，“搓组合键” ，当按顺序WSAD（上下左右）敲击时释放技能（test：可以跳出一张图片代替技能hhh）
任务六：小僵尸和老奶奶和猫咪的故事

C#数组初始化详解 - CSDN博客
http://blog.csdn.net/u010975088/article/details/45532671

正文：今天上午做了菜单栏，编写选择题，响应事件，下午做了第一个动态游戏基础的材料导入、位置移动的脚本编写。

0.键盘事件

响应事件分三种：键盘事件，鼠标事件，触摸事件
今天只介绍键盘事件：即不同的按键响应

1.按下

Input.GetKeyDown(KeyCode.W){} //W为按键，，空格键 Space 箭头（方向键）KeyCode.UpArrow

        //实战：void Update (){   if (Input.GetKeyDown(KeyCode.A))Debug.Log("1");}   //可以看见在面板console下显示响应，也就是说Debug是给开发人员test用的

2.按键抬起

 Input.GetKeyUp(KeyCode.W){}

3.长按

 Input.GetKey(KeyCode.W){frame++；//计时
}

4.按任意键继续：

input.anyKeyDown

任务一：编写菜单栏

public class NewBehaviourScript : MonoBehaviour {private int toolbarID; private string[] toolbarinfo; //矩阵？数组？private bool start;void OnGUI(){toolbarID = GUI.Toolbar(new Rect (10,10,600,30),toolbarID,toolbarinfo); //toolbar不能直接显示，需要to stringGUI.Label(new Rect(10,50,100,100),toolbarinfo[toolbarID]);}void Start () {//toolbarID = 0; //为什么不能赋初值？--meaning is wrong!toolbarinfo = new string[]{"File","Edit","Assets"}; //可以发现如果再加几个变量，在长度和大小上它们均分矩形框（即矩形框是确定的）}void Update () {   }
}

任务二：做一道单项选择题

要点1：Toggle控件（单选框）(比如益智类测试游戏)
Bool Toggle(rect,tool(确定是否被选中因此布尔型)，string)
Toggle(rect,tool(确定是否被选中因此布尔型)，img)
GUIStyle
要点2：尝试如果选择A 则将BCD置false 若选了B 则ACD置0；总之是个单选框
要点3：
GUI.changed：（只要用户有动作，则变为触）
问题1：选择定义私有还是public？若不能被用户更改则pvivate
问题2：关于返回值？？

public class NewBehaviourScript : MonoBehaviour {private bool toggle0;private bool toggle1;private bool toggle2;private bool toggle3;private bool[] ischange = new bool[]{false,false,false,false};private string info;void OnGUI(){GUI.Label(new Rect(10,10,200,50),"2+3=?");toggle0 = GUI.Toggle(new Rect(10,40,100,20),toggle0,"A 3");toggle1 = GUI.Toggle(new Rect(10,60,100,20),toggle1,"B 4");toggle2 = GUI.Toggle(new Rect(10,80,100,20),toggle2,"C 5");toggle3 = GUI.Toggle(new Rect(10,100,100,20),toggle3,"D 6");GUI.Label(new Rect(10,140,200,30),info);if (GUI.Button(new Rect (40,120,70,20),"Submit")){if(toggle2){info = "Right!";}else info = "Wrong!";}if (GUI.changed){if (toggle0 && !ischange[0]){toggle1 = false;toggle2 = false;toggle3 = false;ischange = new bool[]{true,false,false,false};}if (toggle1 && !ischange[1]){toggle0 = false;toggle2 = false;toggle3 = false;ischange = new bool[]{false,true,false,false};}if (toggle2 && !ischange[2]){toggle0 = false;toggle1 = false;toggle3 = false;ischange = new bool[]{false,false,true,false};}if (toggle3 && !ischange[3]){toggle0 = false;toggle2 = false;toggle1 = false;ischange = new bool[]{false,false,false,true};}}}void Start(){info="";}void Update () {}
}

任务三：写多项选择题（多选错选不得分，少选得一半分，80分以上赏朵小红花）

下面代码是挺笨拙的，在此基础上你还要优化的地方：
1.提交之后再显示分数（而现在是一开始就可见）
2.用循环或者什么的减少代码量

using UnityEngine;
using System.Collections;public class select : MonoBehaviour {private bool toggle0;private bool toggle1;private bool toggle2;private bool toggle3;private bool toggle4;private bool toggle5;private bool toggle6;private bool toggle7;private bool toggle8;private bool toggle9;private bool toggle10;private bool toggle11;private bool[] ischange = new bool[]{false,false,false,false};private bool[] ischange1 = new bool[]{false,false,false,false};private int scores;public Texture img;public Texture img0;void OnGUI(){GUIStyle mystyle = new GUIStyle ();mystyle.fontSize = 20;GUI.Label(new Rect(370,160,100,130),img0);GUI.Label(new Rect(180,230,150,20),"Your test score is: "+scores,mystyle);GUI.Label(new Rect(10,10,800,20),"这是三道小题，1.2题为单选30分/道，3题为多选，全对得40分，少答得20分，多答错答无分，总分100");GUI.Label(new Rect(10,40,200,50),"（1）以下哪个为素数？");toggle0 = GUI.Toggle(new Rect(50,70,100,20),toggle0,"A 10");toggle1 = GUI.Toggle(new Rect(50,90,100,20),toggle1,"B 8");toggle2 = GUI.Toggle(new Rect(50,110,100,20),toggle2,"C 3"); //toggle2 is Truetoggle3 = GUI.Toggle(new Rect(50,130,100,20),toggle3,"D 4");GUI.Label(new Rect(180,40,200,50),"（2）以下哪个为小数？");toggle4 = GUI.Toggle(new Rect(220,70,100,20),toggle4,"A 6.111"); //toggle4 is Truetoggle5 = GUI.Toggle(new Rect(220,90,100,20),toggle5,"B 5");toggle6 = GUI.Toggle(new Rect(220,110,100,20),toggle6,"C 4");toggle7 = GUI.Toggle(new Rect(220,130,100,20),toggle7,"D 3");GUI.Label(new Rect(350,40,200,50),"（3） 以下哪些为奇数？");toggle8 = GUI.Toggle(new Rect(390,70,100,20),toggle8,"A 1");//toggle8 is Truetoggle9 = GUI.Toggle(new Rect(390,90,100,20),toggle9,"B 3");//toggle9 is Truetoggle10 = GUI.Toggle(new Rect(390,110,100,20),toggle10,"C 8");toggle11 = GUI.Toggle(new Rect(390,130,100,20),toggle11,"D 10");if (GUI.Button(new Rect (220,180,100,20),"Submit")){if(toggle2)scores += 30;if(toggle4)scores += 30;if(toggle10 || toggle11)scores = scores + 0;else if (toggle8 && toggle9)scores +=40;elsescores +=20;}if (scores > 80)img0 = img;if (GUI.changed){if (toggle0 && !ischange[0]){toggle1 = false;toggle2 = false;toggle3 = false;ischange = new bool[]{true,false,false,false};}if (toggle1 && !ischange[1]){toggle0 = false;toggle2 = false;toggle3 = false;ischange = new bool[]{false,true,false,false};}if (toggle2 && !ischange[2])//True{toggle0 = false;toggle1 = false;toggle3 = false;ischange = new bool[]{false,false,true,false};}if (toggle3 && !ischange[3]){toggle0 = false;toggle2 = false;toggle1 = false;ischange = new bool[]{false,false,false,true};}if (toggle4 && !ischange1[0])//True{toggle5 = false;toggle6 = false;toggle7 = false;ischange1 = new bool[]{true,false,false,false};}if (toggle5 && !ischange1[1]){toggle4 = false;toggle6 = false;toggle7 = false;ischange1 = new bool[]{false,true,false,false};}if (toggle6 && !ischange1[2]){toggle4 = false;toggle5 = false;toggle7 = false;ischange1 = new bool[]{false,false,true,false};}if (toggle7 && !ischange1[3]){toggle4 = false;toggle5 = false;toggle6 = false;ischange1 = new bool[]{false,false,false,true};}}}// Use this for initializationvoid Start(){scores = 0;}// Update is called once per framevoid Update () {}
}

任务四：键盘键响应通过敲ASDW方向键在屏幕上打出相应方向箭头

要点一：是否需要OnGUI? 哪些内容才是给用户看到的？

问：unity中，一些行为代码放在void Start或void Update中，start和update这两个有什么区别或作用？
答：Start可以做一些初始化的事情，Update是循环，每帧都会调用。请先学习一下Unity基础吧。

要点二：既然按键时不给用户看到，自己编程过程中如何test？

//就叫它箭头覆盖型吧..因为下个任务是每按一次箭头改变位置 即多个箭头连续全部显示出来
public class NewBehaviourScript1 : MonoBehaviour {public Texture imgUp;public Texture imgDown;public Texture imgLeft;public Texture imgRight;public Texture tempimage;public const int KEY_UP = 1;public const int KEY_DOWN = 2;public const int KEY_LEFT = 3;public const int KEY_RIGHT = 4;int keyid;void OnGUI(){Texture tempimage = null;  //可注释掉，只是增强代码易读性switch (keyid){case KEY_UP:tempimage = imgUp;break;case KEY_DOWN:tempimage= imgDown;break;case KEY_LEFT:tempimage= imgLeft;break;case KEY_RIGHT:tempimage= imgRight;break;}if(tempimage != null)GUILayout.Label(tempimage);}void Start () {}void Update () {if (Input.GetKeyDown(KeyCode.A))keyid = KEY_LEFT;if (Input.GetKeyDown(KeyCode.S))keyid = KEY_DOWN;if (Input.GetKeyDown(KeyCode.D))keyid = KEY_RIGHT;if (Input.GetKeyDown(KeyCode.W))keyid = KEY_UP;}
}

任务五：基于任务四，“搓组合键” ，当按顺序WSAD（上下左右）敲击时释放技能（test：可以跳出一张图片代替技能hhh）


public class NewBehaviourScript1 : MonoBehaviour {public Texture imgUp;public Texture imgDown;public Texture imgLeft;public Texture imgRight;public Texture tempimage;public Texture imageskill;public const int KEY_UP = 1;public const int KEY_DOWN = 2;public const int KEY_LEFT = 3;public const int KEY_RIGHT = 4;int keyid;bool isSuccess;bool isskill;int result = 0;void OnGUI(){Texture tempimage = null;  //可注if(!isSuccess){switch (keyid){case KEY_UP:tempimage = imgUp;break;case KEY_DOWN:tempimage= imgDown;break;case KEY_LEFT:tempimage= imgLeft;break;case KEY_RIGHT:tempimage= imgRight;break;}if(Input.GetKeyDown(KeyCode.Space))isSuccess = true;if(tempimage != null)GUILayout.Label(tempimage);}else {Debug.Log(result);if(result == 1234)GUILayout.Label(imageskill);}}void Start () {isSuccess = false;}void Update () {if (Input.GetKeyDown(KeyCode.A)){keyid = KEY_LEFT;result = result*10+keyid;//前移}if (Input.GetKeyDown(KeyCode.S)){keyid = KEY_DOWN;result = result*10+keyid;//！！ 改变位置}if (Input.GetKeyDown(KeyCode.D)){keyid = KEY_RIGHT;result = result*10+keyid;}if (Input.GetKeyDown(KeyCode.W)){keyid = KEY_UP;result = result*10+keyid;}}
}
--------------
public class NewBehaviourScript1 : MonoBehaviour {public Texture imgUp;public Texture imgDown;public Texture imgLeft;public Texture imgRight;public Texture tempimage;public Texture imageskill;public const int KEY_UP = 1;public const int KEY_DOWN = 2;public const int KEY_LEFT = 3;public const int KEY_RIGHT = 4;int keyid;bool isSuccess;bool isskill;int result = 0;void OnGUI(){Texture tempimage = null;  //可注释掉if(!isSuccess){switch (keyid){case KEY_UP:tempimage = imgUp;break;case KEY_DOWN:tempimage= imgDown;break;case KEY_LEFT:tempimage= imgLeft;break;case KEY_RIGHT:tempimage= imgRight;break;}if(Input.GetKeyDown(KeyCode.Space))isSuccess = true;if(tempimage != null)GUILayout.Label(tempimage);}else {Debug.Log(result); //test，一般可删除if(result == 1234) //！GUILayout.Label(imageskill);}}void Start () {isSuccess = false;}void Update () {if (Input.GetKeyDown(KeyCode.A)){keyid = KEY_LEFT;result = result*10+keyid;//前移}if (Input.GetKeyDown(KeyCode.S)){keyid = KEY_DOWN;result = result*10+keyid;}if (Input.GetKeyDown(KeyCode.D)){keyid = KEY_RIGHT;result = result*10+keyid;}if (Input.GetKeyDown(KeyCode.W)){keyid = KEY_UP;result = result*10+keyid;}}
}

任务六：小僵尸和老奶奶和猫咪的故事

要点一：导入素材
要点二：关于尺寸：unity里一个特点是设计后的尺寸在实际效果中不会更改，比如一开始在game视图里将尺寸为iphone尺寸（看好啦尺寸在这里设置），那么实际中在其他手机播放可能出现显示不完全的情况，而无法更改。
要点三：一个长图（连续动作）的处理，比如下图：
需要切割，可选自动/手动-按网格或者其他
要点四：当后面导入了很大张的图，发现素材会相互覆盖，怎么处理？
因为它们都在默认图层。需要增加新图层，把它们放到各自的新图层里。

要点五：脚本编写。这个就有点没看懂了以下。。

//由四幅图连接起的小僵尸原地走动/注意除了要拖入纹理，还要在主界面右侧栏赋速度。
using UnityEngine;
using System.Collections;
public class zombie : MonoBehaviour {public Sprite[] sprites;public float framesspeed;private SpriteRenderer spriterender; //SpriteRenderer是这种人物功能实现的必要东西// Use this for initializationvoid Start () {spriterender = GetComponent<SpriteRenderer>();}// Update is called once per framevoid Update () {//动画在的地方int index =(int) (Time.timeSinceLevelLoad * framesspeed);    //关于时间index = index % sprites.Length; //求余spriterender.sprite = sprites [index]; //zombie小僵尸}
}//接着新建一个脚本文件，实现小僵尸位置的移动
using UnityEngine;
using System.Collections;public class weizhi : MonoBehaviour {public float movespeed; // this is unitsprivate Vector3 moveDirection;void Start () {}void Update () {Vector3 currentPostion = transform.position;if(Input.GetButton("Fire1")) //本演示采取鼠标控制，课下练习自己改为方向键操控{   Vector3 moveToward = Camera.main.ScreenToWorldPoint(Input.mousePosition);//主摄像机视角moveDirection = moveToward - currentPostion; //moveDirection.z = 0;  //becase of 2DmoveDirection.Normalize();  //all move}Vector3 targetPosition = currentPostion + moveDirection * movespeed;transform.position = Vector3.Lerp(currentPostion,targetPosition,Time.deltaTime); //Lerp是差值。让小僵尸在某处停顿一下 （是么？）}