JAVA遊戲程式設計之二----j2me MIDlet 手機遊戲入門開發--貪吃蛇_1

作者：雷神

QQ:38929568

QQ群：28048051JAVA遊戲程式設計（滿） 28047782（将滿）

修改貪吃蛇一些BUG，主要在cGame.java Gif.java這連個類其他的可以參考上一片

JAVA遊戲程式設計之二----j2me MIDlet 手機遊戲入門開發--貪吃蛇

本文給出的是程式代碼，需要圖檔才能編譯程式，

Gif.java 這個類是繪制動畫的類，也是蛇的食物類

cGame.java

////////////////////////////////////////////////////////////////////////////////

// cGame.java

// Project: Minesweeper

// Author(s): Gao Lei

// Create: 2007-10-12

package code;

import java.util.Random;

import javax.microedition.lcdui.*;

class cGame extends Canvas implements Runnable

...{

private static final int STATEPLAY = 0;

private static final int STATELOST = 1;

private static final int STATEWIN = 2;

private static final int KEY_UP = 1;

private static final int KEY_DOWN = 2;

private static final int KEY_LEFT = 3;

private static final int KEY_RIGHT = 4;

private static final int KEY_FIRE = 5;

public static int s_width = 0;

public static int s_height = 0;

public static long updates = 0;

public static Random rand;

private int maxRand = 1000;

private int map_x = 10;

private int map_y = 10;

private int map_w = 16;

private int map_h = 16;

private int key_x = map_x / 2;

private int key_y = map_y / 2;

private int snake_w = 8;

private int snake_h = 8;

private int pos_x = map_x / 2;

private int pos_y = map_y / 2;

private int aspect_x= 0;

private int aspect_y= 1;

private int snake_max = 50;

private int snake_min = 5;

private int snake_n = snake_min;

private int gameState = STATEPLAY;

private int level = 1;

private long sleepTime =300;

private int[] snake_x = new int[ snake_max ];

private int[] snake_y = new int[ snake_max ];

private int[][] map;

private boolean isShowInfo = false;

private Font font = Font.getFont( Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE );

private Thread thread;

private Image[] imgGameBg = new Image[4];

private Image[] imgItem = new Image[3];

private Gif[] gold = new Gif[5];

private Gif[] dung = new Gif[2];

private Gif fungus;

cGame()

...{

setFullScreenMode(true);

s_width = getWidth();

s_height= getHeight();

rand = new Random( System.currentTimeMillis() );

try

...{

for( int i=0; i<gold.length; i++ )

...{

gold[i]= new Gif("gold", 5, 19, 15 );

}

for( int i=0; i<dung.length; i++ )

dung[i]= new Gif("dung", 6, 21, 30 );

dung[i].life = -2; // --life

fungus = new Gif("fungus", 12, 25, 23 );

fungus.setFormTime

(

new int[] ...{ 2000, 150, 150, 150,

150, 200, 100, 100,

200, 150, 200, 200

}

);

fungus.life = 5; // --life +5

fungus.isShow = false;

for( int i=0; i<imgItem.length; i++ )

imgItem[i]=Image.createImage("/pics/item_16_"+i+".png");

Image temp = Image.createImage("/pics/bg_tile_0.png");

Graphics gn;

for( int i=0; i<imgGameBg.length; i++ )

imgGameBg[i] = Image.createImage(16, 16);

gn = imgGameBg[i].getGraphics();

gn.drawImage(temp, -i*16, 0, gn.LEFT|gn.TOP);

gn = null;

temp = null;

System.gc();

}catch(Exception e)...{ e.printStackTrace(); }

rePlay( level );

thread = new Thread(this);

thread.start();

}

public void run()

while( true )

try

updates++;

repaint();

serviceRepaints();

thread.sleep(sleepTime);

}catch(Exception e)

e.printStackTrace();

}

public void paint(Graphics g)

g.setClip(0, 0, s_width, s_height);

g.setColor(0x000000);

g.fillRect(0, 0, s_width, s_height);

for( int i=0; i<map_x; i++ )

for( int j=0; j<map_y; j++ )

g.drawImage(imgGameBg[ map[i][j] ], j*map_h, i*map_w, g.LEFT|g.TOP);

}

for( int i=0; i<gold.length; i++ )

gold[i].paint(g);

for( int i=0; i<dung.length; i++ )

dung[i].paint(g);

if( snake_n>20 )

fungus.isShow = true;

fungus.paint( g );

paintSnake( g );

if( isShowInfo || gameState != STATEPLAY )

g.setColor(0xFFFFFF);

for( int i=0; i<=map_y; i++ ) // |||

g.drawLine(i*map_w, 0, i*map_w, map_h*map_x);

for( int i=0; i<=map_x; i++ ) // ===

g.drawLine(0, i*map_h, map_y*map_w, i*map_h);

g.setFont( font );

g.setColor( 0xff0000 );

g.setFont( font );

g.drawString( "life:"+snake_n, 2, 2, 0 );

g.drawString( "level:"+level, 2, 18, 0 );

void paintSnake( Graphics g )

g.setColor(0x0000FF);

for( int i=snake_n; i>0; i-- )

snake_x[i] = snake_x[i-1];

snake_y[i] = snake_y[i-1];

g.fillRect(snake_x[i]-snake_w/2, snake_y[i]-snake_h/2, snake_w, snake_h);

snake_x[0] += aspect_x*8;

snake_y[0] += aspect_y*8;

g.setColor(0x6666FF);

g.fillRect(snake_x[0]-snake_w/2, snake_y[0]-snake_h/2, snake_w, snake_h);

if( snake_x[0]<0 || snake_x[0]>s_width || snake_y[0]<0 ||snake_y[0]>s_height )

rePlay(level);

for( int i=snake_min; i<snake_n; i++ )

if( isIntersect(snake_x[0], snake_y[0], snake_w, snake_h,

snake_x[i], snake_y[i], snake_w, snake_h )

)

rePlay(level);

if( isIntersect(snake_x[0], snake_y[0], snake_w, snake_h,

gold[i].pos_x, gold[i].pos_y, gold[i].w, gold[i].h )

)

addSnake( gold[i].life );

gold[i].setPos();

dung[i].pos_x, dung[i].pos_y, dung[i].w, dung[i].h )

addSnake( dung[i].life );

dung[i].setPos();

if( fungus.isShow && isIntersect(snake_x[0], snake_y[0], snake_w, snake_h,

fungus.pos_x, fungus.pos_y, fungus.w, fungus.h )

)

addSnake( fungus.life );

fungus.setPos();

boolean isIntersect(int x1,int y1, int w1, int h1, int x2, int y2, int w2, int h2)

if( Math.abs(x2-x1) < (w1+w2)/2 && Math.abs(y2-y1) < (h1+h2)/2 )

return true;

else

return false;

public void keyPressed(int key)

key = Math.abs(key);

System.out.println("key="+key);

switch( key )

case KEY_NUM2:

case KEY_UP:

if( gameState != STATEPLAY )

break;

else

...{

if( aspect_y <= 0 )

...{

aspect_x = 0;

aspect_y = -1;

}

break;

case KEY_NUM8:

case KEY_DOWN:

if( gameState != STATEPLAY )

if( aspect_y >= 0 )

aspect_y = +1;

case KEY_NUM4:

case KEY_LEFT:

if( aspect_x <= 0 )

aspect_y = 0;

aspect_x = -1;

case KEY_NUM6:

case KEY_RIGHT:

if( aspect_x >= 0 )

aspect_x = +1;

case KEY_FIRE:

case KEY_NUM5:

if( gameState == STATEPLAY )

// addSnake();

// System.out.println("snake_n="+snake_n);

case KEY_NUM1:

case KEY_NUM3:

isShowInfo = !isShowInfo;

case KEY_NUM0:

rePlay( level );

repaint();

private void addSnake(int life)

int s_n = snake_n;

snake_n += life;

if( snake_n >= snake_max )

level++;

else if( snake_n < snake_min ) //game over

else if( life>0 )

for( int i=s_n; i<snake_n; i++ )

snake_x[i] = -snake_w;

snake_y[i] = -snake_h;

public void rePlay( int level )

sleepTime = 300-level*20;

map_x = s_height/16;

map_y = s_width/16;

key_x = map_x>>1;

key_y = map_y>>1;

gameState = STATEPLAY;

map = new int[map_x][map_y];

isShowInfo = false;

snake_n = snake_min;

aspect_x = 0;

aspect_y = 0;

Image temp = Image.createImage("/pics/bg_tile_"+(level%2)+".png");

for( int i=0; i<map_x; i++ ) //draw bg

int r = rand.nextInt(maxRand);

for( int k=0; k<imgGameBg.length; k++ )

if( r < (maxRand>>(k+1)) )

map[i][j] = k;

for( int i=0; i<snake_n; i++ ) //init snake

snake_x[i] = s_width >>1;

snake_y[i] = s_height>>1; //-(i*snake_h);

}

本文轉自 kome2000 51CTO部落格，原文連結:http://blog.51cto.com/kome2000/578512

JAVA遊戲程式設計之二----j2me MIDlet 手機遊戲入門開發--貪吃蛇_1

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