学习核心内容：
1. 学会SurfaceView的绘图技巧。
2. 掌握神经猫的游戏逻辑设计。
第一阶段主要完成内容：
- 并且创建游戏所需的类，搭建基本的代码结构。
- 创建一个二维数组，用于保存游戏场景，并且将场景初始化。
- SurfaceView中根据场景数据，在界面中绘制点阵。
先上代码
1 package com.ryan.catchcrazycat; 2 3 /** 4 * Created by air on 15-8-1. 5 */ 6 public class Dot { 7 8 /* 9 记录当前点的X，Y坐标10 */11 int x,y;12 13 /*14 记录点的状态15 */16 int status;17 18 public static final int STATUS_ON = 1;19 public static final int STATUS_OFF = 0;20 public static final int STATUS_IN = 9;21 22 public Dot(int x,int y) {23 this.x = x;24 this.y = y;25 status = STATUS_OFF;26 }27 28 public int getX() {29 return x;30 }31 32 public int getY() {33 return y;34 }35 36 public void setX(int x) {37 this.x = x;38 }39 40 public void setY(int y) {41 this.y = y;42 }43 44 public void setX(int x,int y) {45 this.x = x;46 this.y = y;47 }48 49 public void setStatus(int status){50 this.status = status;51 }52 }
1 package com.ryan.catchcrazycat; 2 3 import android.content.Context; 4 import android.graphics.Canvas; 5 import android.graphics.Color; 6 import android.graphics.Paint; 7 import android.graphics.RectF; 8 import android.view.SurfaceHolder; 9 import android.view.SurfaceView; 10 11 /** 12 * Created by air on 15-8-1. 13 */ 14 public class playground extends SurfaceView implements SurfaceHolder.Callback{ 15 16 17 18 private static int WIDTH = 40; 19 private static final int COL = 10; 20 private static final int ROM = 10; 21 private static final int BLOCKS = 10;//默认添加的路障数量 22 23 private Dot matrix[][]; 24 private Dot cat; 25 26 public playground(Context context) { 27 super(context); 28 getHolder().addCallback(this); 29 matrix = new Dot[ROM][COL]; 30 for (int i = 0; i < ROM; i++) { 31 for (int j = 0; j < COL; j++) { 32 matrix[i][j] = new Dot(j,i); 33 } 34 } 35 36 initGame(); 37 } 38 39 40 private void redraw() { 41 Canvas canvas = getHolder().lockCanvas(); 42 canvas.drawColor(Color.LTGRAY); 43 Paint paint = new Paint(); 44 paint.setFlags(Paint.ANTI_ALIAS_FLAG); 45 for (int i = 0; i < ROM; i++) { 46 int offset = 0; //错位解决 47 if (i%2==0){ 48 offset = WIDTH/2; 49 } 50 for (int j = 0; j < COL; j++) { 51 Dot one = getDot(j,i); 52 switch (one.status){ 53 case Dot.STATUS_OFF: 54 paint.setColor(0xFFEEEEEE); 55 break; 56 case Dot.STATUS_ON: 57 paint.setColor(0xFFFFAA00); 58 break; 59 case Dot.STATUS_IN: 60 paint.setColor(0xFFFF0000); 61 break; 62 default: 63 break; 64 } 65 canvas.drawOval( 66 new RectF(one.getX()*WIDTH+offset,one.getY()*WIDTH,(one.getX()+1)*WIDTH+offset,(one.getY()+1)*WIDTH),paint); 67 } 68 } 69 getHolder().unlockCanvasAndPost(canvas); 70 } 71 72 @Override 73 public void surfaceCreated(SurfaceHolder holder) { 74 redraw(); 75 } 76 77 @Override 78 public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { 79 WIDTH = width/(COL+1); 80 redraw(); 81 } 82 83 @Override 84 public void surfaceDestroyed(SurfaceHolder holder) { 85 86 } 87 88 private void initGame(){ 89 for (int i = 0; i < ROM; i++) { 90 for (int j = 0; j < COL; j++) { 91 matrix[i][j].setStatus(Dot.STATUS_OFF); 92 } 93 } 94 cat = new Dot(4,5); 95 getDot(4,5).setStatus(Dot.STATUS_IN); 96 for (int i = 0; i < BLOCKS; ) { 97 int x = (int)(Math.random()*1000%COL); 98 int y = (int)(Math.random()*1000%COL); 99 if (getDot(x,y).status==Dot.STATUS_OFF){100 getDot(x,y).setStatus(Dot.STATUS_ON);101 i++;102 System.out.println("BLOCKS"+i);103 }104 }105 }106 107 private Dot getDot(int x,int y){108 return matrix[y][x];109 }110 111 }
1 package com.ryan.catchcrazycat; 2 3 import android.support.v7.app.ActionBarActivity; 4 import android.os.Bundle; 5 import android.view.Menu; 6 import android.view.MenuItem; 7 8 9 public class MainActivity extends ActionBarActivity {10 11 @Override12 protected void onCreate(Bundle savedInstanceState) {13 super.onCreate(savedInstanceState);14 setContentView(new playground(this));15 }16 17 18 }
来张截图。
还没有来得及细细品味，想法感悟心得，后续跟进。