Android self-taught course-surrounded by neural cat development and android

Android self-taught course-surrounded by neural cat development and android

Core content:
1. Learn SurfaceView plotting skills.
2. Master the game logic design of neural cats.

 

The main content of the first phase is as follows:

• Create the classes required for the game and build the basic code structure.
• Create a two-dimensional array to save the game scenario and initialize the scenario.
• Draw a dot matrix in SurfaceView Based on the scene data.

Code first

1 package com. ryan. catchcrazycat; 2 3/** 4 * Created by air on 15-8-1. 5 */6 public class Dot {7 8/* 9 records the X and Y coordinates of the current vertex 10 */11 int x and y; status of 12 13/* 14 record points 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}Dot. java 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; // The default number of roadblocks Added 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; // dislocation solution 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 (0 xFFEEEEEE); 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}Playground. java 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}MainActivity

Laizhang.

 

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