贪吃蛇Word文档格式.docx
《贪吃蛇Word文档格式.docx》由会员分享，可在线阅读，更多相关《贪吃蛇Word文档格式.docx（51页珍藏版）》请在冰豆网上搜索。
如果用户在游戏期间离开游戏界面，游戏暂停；
或者由于内存比较紧张，Android关闭游戏释放内存，那么当用户返回游戏界面的时候恢复到上次离开时的界面。
三、源码解析
详细解析下源代码，由于代码量不大，以注释的方式列出如下：
1、Snake.java
viewplaincopytoclipboardprint?
1./**
2.*<
p>
Title:
Snake<
/p>
3.*<
Copyright:
（C）2007TheAndroidOpenSourceProject.LicensedundertheApacheLicense,Version2.0（the"
License"
）<
4.*@authorGavin标注
5.*/
6.packagecom.deaboway.snake;
7.importandroid.app.Activity;
8.importandroid.os.Bundle;
9.importandroid.widget.TextView;
10./**
11.*Snake:
asimplegamethateveryonecanenjoy.
12.*
13.*ThisisanimplementationoftheclassicGame"
Snake"
inwhichyoucontrola
14.*serpentroamingaroundthegardenlookingforapples.Becareful,though,
15.*becausewhenyoucatchone,notonlywillyoubecomelonger,butyou'
llmove
16.*faster.Runningintoyourselforthewallswillendthegame.
17.*
18.*/
19.//贪吃蛇：
经典游戏，在一个花园中找苹果吃，吃了苹果会变长，速度变快。
碰到自己和墙就挂掉。
20.publicclassSnakeextendsActivity{
21.privateSnakeViewmSnakeView;
22.privatestaticStringICICLE_KEY="
snake-view"
;
23./**
24.*CalledwhenActivityisfirstcreated.Turnsoffthetitlebar,setsup
25.*thecontentviews,andfiresuptheSnakeView.
26.*
27.*/
28.//在activity第一次创建时被调用
29.@Override
30.publicvoidonCreate（BundlesavedInstanceState）{
31.super.onCreate（savedInstanceState）;
32.setContentView（R.layout.snake_layout）;
33.mSnakeView=（SnakeView）findViewById（R.id.snake）;
34.mSnakeView.setTextView（（TextView）findViewById（R.id.text））;
35.//检查存贮状态以确定是重新开始还是恢复状态
36.if（savedInstanceState==null）{
37.//存储状态为空，说明刚启动可以切换到准备状态
38.mSnakeView.setMode（SnakeView.READY）;
39.}else{
40.//已经保存过，那么就去恢复原有状态
41.Bundlemap=savedInstanceState.getBundle（ICICLE_KEY）;
42.if（map!
=null）{
43.//恢复状态
44.mSnakeView.restoreState（map）;
45.}else{
46.//设置状态为暂停
47.mSnakeView.setMode（SnakeView.PAUSE）;
48.}
49.}
50.}
51.//暂停事件被触发时
52.@Override
53.protectedvoidonPause（）{
54.super.onPause（）;
55.//Pausethegamealongwiththeactivity
56.mSnakeView.setMode（SnakeView.PAUSE）;
57.}
58.//状态保存
59.@Override
60.publicvoidonSaveInstanceState（BundleoutState）{
61.//存储游戏状态到View里
62.outState.putBundle（ICICLE_KEY,mSnakeView.saveState（））;
63.}
64.}
2、SnakeView.java
7.importjava.util.ArrayList;
8.importjava.util.Random;
9.importandroid.content.Context;
10.importandroid.content.res.Resources;
11.importandroid.os.Handler;
12.importandroid.os.Message;
13.importandroid.util.AttributeSet;
14.importandroid.os.Bundle;
15.importandroid.util.Log;
16.importandroid.view.KeyEvent;
17.importandroid.view.View;
18.importandroid.widget.TextView;
19./**
20.*SnakeView:
implementationofasimplegameofSnake
21.*
22.*
23.*/
24.publicclassSnakeViewextendsTileView{
25.privatestaticfinalStringTAG="
Deaboway"
26./**
27.*Currentmodeofapplication:
READYtorun,RUNNING,oryouhavealready
28.*lost.staticfinalintsareusedinsteadofanenumforperformance
29.*reasons.
30.*/
31.//游戏状态，默认值是准备状态
32.privateintmMode=READY;
33.//游戏的四个状态暂停准备运行和失败
34.publicstaticfinalintPAUSE=0;
35.publicstaticfinalintREADY=1;
36.publicstaticfinalintRUNNING=2;
37.publicstaticfinalintLOSE=3;
38.//游戏中蛇的前进方向，默认值北方
39.privateintmDirection=NORTH;
40.//下一步的移动方向，默认值北方
41.privateintmNextDirection=NORTH;
42.//游戏方向设定北南东西
43.privatestaticfinalintNORTH=1;
44.privatestaticfinalintSOUTH=2;
45.privatestaticfinalintEAST=3;
46.privatestaticfinalintWEST=4;
47./**
48.*LabelsforthedrawablesthatwillbeloadedintotheTileViewclass
49.*/
50.//三种游戏元
51.privatestaticfinalintRED_STAR=1;
52.privatestaticfinalintYELLOW_STAR=2;
53.privatestaticfinalintGREEN_STAR=3;
54./**
55.*mScore:
usedtotrackthenumberofapplescapturedmMoveDelay:
numberof
56.*millisecondsbetweensnakemovements.Thiswilldecreaseasapplesare
57.*captured.
58.*/
59.//游戏得分
60.privatelongmScore=0;
61.//移动延迟
62.privatelongmMoveDelay=600;
63./**
64.*mLastMove:
trackstheabsolutetimewhenthesnakelastmoved,andis
65.*usedtodetermineifamoveshouldbemadebasedonmMoveDelay.
66.*/
67.//最后一次移动时的毫秒时刻
68.privatelongmLastMove;
69./**
70.*mStatusText:
textshowstotheuserinsomerunstates
71.*/
72.//显示游戏状态的文本组件
73.privateTextViewmStatusText;
74./**
75.*mSnakeTrail:
alistofCoordinatesthatmakeupthesnake'
sbody
76.*mAppleList:
thesecretlocationofthejuicyapplesthesnakecraves.
77.*/
78.//蛇身数组（数组以坐标对象为元素）
79.privateArrayList<
Coordinate>
mSnakeTrail=newArrayList<
（）;
80.//苹果数组（数组以坐标对象为元素）
81.privateArrayList<
mAppleList=newArrayList<
82./**
83.*Everyoneneedsalittlerandomnessintheirlife
84.*/
85.//随机数
86.privatestaticfinalRandomRNG=newRandom（）;
87./**
88.*Createasimplehandlerthatwecanusetocauseanimationtohappen.We
89.*setourselvesasatargetandwecanusethesleep（）functiontocausean
90.*update/invalidatetooccuratalaterdate.
91.*/
92.//创建一个RefreshHandler来产生动画：
通过sleep（）来实现
93.privateRefreshHandlermRedrawHandler=newRefreshHandler（）;
94.//一个Handler
95.classRefreshHandlerextendsHandler{
96.//处理消息队列
97.@Override
98.publicvoidhandleMessage（Messagemsg）{
99.//更新View对象
100.SnakeView.this.update（）;
101.//强制重绘
102.SnakeView.this.invalidate（）;
103.}
104.//延迟发送消息
105.publicvoidsleep（longdelayMillis）{
106.this.removeMessages（0）;
107.sendMessageDelayed（obtainMessage（0）,delayMillis）;
108.}
109.};
110./**
111.*ConstructsaSnakeViewbasedoninflationfromXML
112.*
113.*@paramcontext
114.*@paramattrs
115.*/
116.//构造函数
117.publicSnakeView（Contextcontext,AttributeSetattrs）{
118.super（context,attrs）;
119.//构造时初始化
120.initSnakeView（）;
121.}
122.publicSnakeView（Contextcontext,AttributeSetattrs,intdefStyle）{
123.super（context,attrs,defStyle）;
124.initSnakeView（）;
125.}
126.//初始化
127.privatevoidinitSnakeView（）{
128.//可选焦点
129.setFocusable（true）;
130.Resourcesr=this.getContext（）.getResources（）;
131.//设置贴片图片数组
132.resetTiles（4）;
133.//把三种图片存到Bitmap对象数组
134.loadTile（RED_STAR,r.getDrawable（R.drawable.redstar））;
135.loadTile（YELLOW_STAR,r.getDrawable（R.drawable.yellowstar））;
136.loadTile（GREEN_STAR,r.getDrawable（R.drawable.greenstar））;
137.}
138.//开始新的游戏——初始化
139.privatevoidinitNewGame（）{
140.//清空ArrayList列表
141.mSnakeTrail.clear（）;
142.mAppleList.clear（）;
143.//Fornowwe'
rejustgoingtoloadupashortdefaulteastboundsnake
144.//that'
sjustturnednorth
145.//创建蛇身
146.mSnakeTrail.add（newCoordinate（7,7））;
147.mSnakeTrail.add（newCoordinate（6,7））;
148.mSnakeTrail.add（newCoordinate（5,7））;
149.mSnakeTrail.add（newCoordinate（4,7））;
150.mSnakeTrail.add（newCoordinate（3,7））;
151.mSnakeTrail.add（newCoordinate（2,7））;
152.//新的方向：
北方
153.mNextDirection=NORTH;
154.//2个随机位置的苹果
155.addRandomApple（）;
156.addRandomApple（）;
157.//移动延迟
158.mMoveDelay=600;
159.//初始得分0
160.mScore=0;
161.}
3、TileView.java
7.importandroid.content.Context;
8.importandroid.content.res.TypedArray;
9.importandroid.graphics.Bitmap;
10.importandroid.graphics.Canvas;
11.importandroid.graphics.Paint;
12.importandroid.graphics.drawable.Drawable;
14.importandroid.view.View;
15./**
16.*TileView:
aView-variantdesignedforhandlingarraysof"
icons"
orother
17.*drawables.
18.*
19.*/
20.//View变种，用来处理一组贴片——“icons”或其它可绘制的对象
21.publicclassTileViewextendsView{
22./**
23.*Parameterscontrollingthesizeofthetilesandtheirrangewithinview.
24.*Width/Heightareinpixels,andDrawableswillbescaledtofittothese
25.*dimensions.X/YTileCountsarethe
升级会员 