j2me学习－－是男人就下１００层代码学习
先贴出代码随后加上自己的注释．
自己感觉程序的运行效果不好但是很适合处学者学习．
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.util.*;
import javax.microedition.lcdui.game.GameCanvas;
public class Man extends MIDlet
{
private Game game;
public Display display;
public Man()
{
game = new Game(this);
display = Display.getDisplay(this);
}
public void startApp()
{
game.startGame();
}
public void pauseApp()
{
}
public void destroyApp(boolean unconditional)
{
}
public void closeman()
{
destroyApp(false);
notifyDestroyed();
}
}
class Game
{
public MainMenu mainmenu;
public ManDown mandown;
private Man G_man;
private Image imgEmpty;
public int man_mov_x = 3;
public int man_mov_y = 3;
public int obj_mov = 4;
public Game(Man man)
{
this.G_man = man;
this.mainmenu = new MainMenu(this);
}
public void startGame()
{
G_man.display.setCurrent(this.mainmenu);
}
public void startmandown()
{
this.mandown = new ManDown(this,G_man);
setgame(man_mov_x,man_mov_y,obj_mov);
G_man.display.setCurrent(this.mandown);
}
public void exitGame()
{
G_man.destroyApp(false);
G_man.notifyDestroyed();
}
public void setgame(int manmovx, int manmovy, int objmov)
{
this.mandown.MAN_MOV_X = manmovx;
this.mandown.MAN_MOV_Y = manmovy;
this.mandown.OBJ_MOV = objmov;
}
public void MydrawRegion(Graphics graphics,Image imgSrc,
int SrcX,int SrcY,
int TargetX, int TargetY,
int TargetWidth,int TargetHeight)
{
graphics.setClip(TargetX, TargetY, TargetWidth, TargetHeight);
graphics.drawImage(imgSrc, TargetX-SrcX, TargetY-SrcY, Graphics.LEFT | Graphics.TOP);
}
}
class MainMenu extends Canvas
{
private int SCREEN_WIDTH = this.getWidth();
private int SCREEN_HEIGHT = this.getHeight();
public int menuindex = 0;
private int setindex= 0;
private Game game;
private String menustr[] = new String[4];
private String setstr[] = new String[4];
public MainMenu(Game game)
{
this.game = game;
try
{
setFullScreenMode(true);
menustr[0] = "开始";
menustr[1] = "设置";
menustr[2] = "退出";
menustr[3] = "关于";
setstr[0] = "简单";
setstr[1] = "普通";
setstr[2] = "困难";
setstr[3] = "返回";
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
protected void keyPressed(int key)
{
if(menuindex < 5)
{
switch (getGameAction(key))
{
case Canvas.UP:
menuindex --;
if(menuindex < 0) menuindex = 3;
break;
case Canvas.DOWN:
menuindex ++;
if(menuindex > 3) menuindex = 0;
break;
case Canvas.FIRE:
switch(menuindex)
{
case 0:
// 开始游戏
this.game.startmandown();
break;
case 1:
// 设置难度
menuindex = 5;
break;
case 2:
// 退出
this.game.exitGame();
break;
case 3:
// 关于
menuindex = 4;
break;
case 4:
//从关于中退出
menuindex = 3;
break;
}
break;
}
}
else
{
switch (getGameAction(key))
{
case Canvas.UP:
setindex --;
if(setindex < 0) setindex = 3;
break;
case Canvas.DOWN:
setindex ++;
if(setindex > 3) setindex = 0;
break;
case Canvas.FIRE:
switch(setindex)
{
case 0:
// 简单
this.game.man_mov_x = 3;
this.game.man_mov_y = 3;
this.game.obj_mov = 2;
this.game.startmandown();
break;
case 1:
// 一般
this.game.man_mov_x = 3;
this.game.man_mov_y = 3;
this.game.obj_mov = 4;
this.game.startmandown();
break;
case 2:
// 困难
this.game.man_mov_x = 4;
this.game.man_mov_y = 4;
this.game.obj_mov = 5;
this.game.startmandown();
break;
case 3:
// 返回
setindex = 0;
menuindex = 1;
break;
}
break;
}
}
this.repaint();
}
protected void sizeChanged(int w, int h)
{
SCREEN_WIDTH = w ;
SCREEN_HEIGHT = h ;
}
public void paint(Graphics graphics)
{
if(menuindex < 4)
{
graphics.setColor(96,57,19);
graphics.fillRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.clipRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
for(int i =0;i < 4;i++)
{
if(i == menuindex)
{
graphics.setColor(218,218,218);
graphics.drawString(menustr[i],this.getWidth()/2,this.getHeight()/6*(1+i),Graphics.HCENTER|Graphics.TOP);
}
else
{
graphics.setColor(198,156,109);
graphics.drawString(menustr[i],this.getWidth()/2,this.getHeight()/6*(1+i),Graphics.HCENTER|Graphics.TOP);
}
}
}
else if(menuindex == 4)
{
graphics.setColor(96,57,19);
graphics.fillRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.clipRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.setColor(198,156,109);
graphics.drawString("雨石工作室",this.getWidth()/2,this.getHeight()/5*1,Graphics.HCENTER|Graphics.TOP);
graphics.drawString("设计开发",this.getWidth()/2,this.getHeight()/5*2,Graphics.HCENTER|Graphics.TOP);
}
else if(menuindex == 5)
{
graphics.setColor(96,57,19);
//graphics.fillRect(0,0,this.getWidth(),this.getHeight());
//graphics.clipRect(0,0,this.getWidth(),this.getHeight());
graphics.fillRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.clipRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
for(int i =0;i < 4;i++)
{
if(i == setindex)
{
graphics.setColor(218,218,218);
graphics.drawString(setstr[i],this.getWidth()/2,this.getHeight()/6*(1+i),Graphics.HCENTER|Graphics.TOP);
}
else
{
graphics.setColor(198,156,109);
graphics.drawString(setstr[i],this.getWidth()/2,this.getHeight()/6*(1+i),Graphics.HCENTER|Graphics.TOP);
}
}
}
}
}
class ManDown extends GameCanvas implements Runnable
{
private static int MAN_WIDTH = 16;
private static int MAN_HEIGHT = 16;
private static int OBJ_WIDTH = 48;
private static int OBJ_HEIGHT = 8;
private static int SIDE_WIDTH = 8;
private static int SIDE_HEIGHT = 16;
private static int MAX_LIFE = 15;
//private int SCREEN_WIDTH = this.getWidth();
//private int SCREEN_HEIGHT = this.getHeight();
private int SCREEN_WIDTH;
private int SCREEN_HEIGHT;
public int MAN_MOV_X;
public int MAN_MOV_Y;
public int OBJ_MOV;
private Random rnd;
private Game game;
private Man man;
private Image I_man,I_obj1,I_obj2,I_side,I_top;
private Image image_temp;
private Thread thread;
private int man_picIndex = 0;
public int position_obj_x[] = new int[16];
public int position_obj_y[] = new int[16];
public int position_man_x;
public int position_man_y;
public int position_side_y = 0;
public int direction = 0;
public int directionup = 0;
public int directionhit = 0;
public int time_num = 0;
public int life;
public int level = 0;
public int life_change = 0;
public int level_change = 0;
private Image I_tmp[] = new Image[5];
private int Int_tmp[] = new int[16];
public boolean isgameover = false;
public boolean running = true;
public ManDown(Game game, Man man)
{
super(true);
thread = new Thread(this);
rnd = new Random();
this.game = game;
this.man = man;
setFullScreenMode(true);
SCREEN_WIDTH = this.getWidth();
SCREEN_HEIGHT = this.getHeight();
try
{
life = MAX_LIFE;
I_man = Image.createImage("/man.png");
I_obj1 = Image.createImage("/obj1.png");
I_side = Image.createImage("/side.png");
I_top = Image.createImage("/top.png");
initobj(16);
}
catch(Exception ex)
{
ex.printStackTrace();
}
thread.start();
}
public void run()
{
try
{
while (running)
//while (true)
{
man_picIndex++;
man_picIndex = man_picIndex % 4;
thread.sleep(100);
inputs();
changelevel(SCREEN_HEIGHT/3);
scrollside(OBJ_MOV,14);
objup(OBJ_MOV);
this.repaint();
//flushGraphics();
}
}
catch(InterruptedException ie)
{
ie.printStackTrace();
}
}
protected void sizeChanged(int w, int h)
{
SCREEN_WIDTH = w ;
SCREEN_HEIGHT = h ;
}
//产生物体的坐标以及物体
public void initobj(int obj_num)
{
for(int i=0;i
{
if (i==0)
{
position_obj_x[0] = (SCREEN_WIDTH - OBJ_WIDTH)/2;
position_obj_y[0] = SCREEN_HEIGHT;
position_man_x = (SCREEN_WIDTH - MAN_WIDTH)/2;
position_man_y = SCREEN_HEIGHT - MAN_HEIGHT;
Int_tmp[0] = 0;
}
else
{
position_obj_x[i] = SIDE_WIDTH + (rnd.nextInt() >>> 1)%(SCREEN_WIDTH/12-1)*12;
if (position_obj_x[i]>SCREEN_WIDTH - OBJ_WIDTH - SIDE_WIDTH)
{
position_obj_x[i] = position_obj_x[i] - OBJ_WIDTH - SIDE_WIDTH;
}
position_obj_y[i]=position_obj_y[i-1]+30;
Int_tmp[i] = (rnd.nextInt() >>> 1)%6;
}
}
}
public void gameover()
{
/*if(isgameover == true)
running = false;*/
}
public void changelevel(int levelHeight)
{
level_change++;
if (level_change/levelHeight == 1)
{
level_change = 0;
level++;
}
}
public void scrollside(int chg_side,int max_chg)
{
position_side_y = position_side_y - chg_side;
if (position_side_y < -max_chg)
position_side_y = 0;
}
public void objup(int chg_obj_y)
{
for(int i=0;i<16;i++)
{
//坐标减小,物体上移
position_obj_y[i] = position_obj_y[i] - chg_obj_y;
//使物体坐标循环出现
if (position_obj_y[i] < 15)
{
Int_tmp[i] = (rnd.nextInt() >>> 1)%6;
if (i == 0 )
{
position_obj_y[0] = position_obj_y[15] + 30;
Int_tmp[0] = (rnd.nextInt() >>> 1) % 6;
}
else
{
position_obj_y[i] = position_obj_y[i-1] + 30;
Int_tmp[i] = (rnd.nextInt() >>> 1) % 6;
}
position_obj_x[i] = SIDE_WIDTH + (rnd.nextInt() >>> 1)%(SCREEN_WIDTH/12-1)*12;
if (position_obj_x[i]>SCREEN_WIDTH - OBJ_WIDTH - SIDE_WIDTH)
{
position_obj_x[i] = position_obj_x[i] - OBJ_WIDTH - SIDE_WIDTH;
}
}
}
}
//画屏幕
public void paint(Graphics graphics)
{
graphics.setColor(0,0,0);
graphics.fillRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.clipRect(0,0,SCREEN_WIDTH,SCREEN_HEIGHT);
graphics.setColor(255,0,0);
graphics.drawString("生命: "+life,10,0,Graphics.LEFT|Graphics.TOP);
graphics.drawString("层数: "+level,70,0,Graphics.LEFT|Graphics.TOP);
if(isgameover)
{
level_change = level;
graphics.drawString("GameOver",SCREEN_WIDTH/2,SCREEN_HEIGHT*1/3,Graphics.TOP|Graphics.HCENTER);
graphics.drawString("层数:"+level_change,SCREEN_WIDTH/2,SCREEN_HEIGHT*1/3+20,Graphics.TOP|Graphics.HCENTER);
}
else
{
//显示物体
for(int i=0;i<16;i++)
{
draw_obj(graphics, I_obj1, Int_tmp[i], position_obj_x[i], position_obj_y[i]);
}
}
//顶端 左侧 右侧
for(int i=0;i
{
game.MydrawRegion(graphics,I_top,0,0,8*i,14,8,8);
}
for(int i=0;i
{
game.MydrawRegion(graphics,I_side,0,0,0,position_side_y + SIDE_HEIGHT * i,SIDE_WIDTH,SIDE_HEIGHT);
game.MydrawRegion(graphics,I_side, SIDE_WIDTH, 0, SCREEN_WIDTH - SIDE_WIDTH, position_side_y + SIDE_HEIGHT * i,SIDE_WIDTH,SIDE_HEIGHT);
}
gameover();
checkman(graphics);
checkposition(graphics, 2, (MAN_MOV_Y + OBJ_MOV)/2, MAN_MOV_Y);
checktop(16, 3, MAN_MOV_Y);
checkbottom(SCREEN_HEIGHT,MAN_MOV_Y);
checkside();
serviceRepaints();
}
//检查状态以显示小人状态public void checkman(Graphics graphics)
{
if (directionup == 0)
{
switch(direction)
{
case 0:
game.MydrawRegion(graphics,I_man,8 * MAN_WIDTH,directionhit *16, position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
case 1:
game.MydrawRegion(graphics,I_man,directionhit*4*MAN_WIDTH + man_picIndex * MAN_WIDTH,0,position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
case 2:
game.MydrawRegion(graphics,I_man,directionhit*4*MAN_WIDTH + man_picIndex * MAN_WIDTH,16,position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
}
}
else if (directionup == 1)
{
switch(direction)
{
case 0:
game.MydrawRegion(graphics,I_man,directionhit*4*MAN_WIDTH + man_picIndex * MAN_WIDTH,48,position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
case 1:
game.MydrawRegion(graphics,I_man,directionhit*4*MAN_WIDTH + man_picIndex * MAN_WIDTH,32,position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
case 2:
game.MydrawRegion(graphics,I_man,directionhit*4*MAN_WIDTH + man_picIndex * MAN_WIDTH,64,position_man_x,position_man_y, MAN_WIDTH, MAN_HEIGHT);
break;
}
}
}
//检查人物是否到达顶部public void checktop(int topposition,int lifevalue,int chg_man_y)
{
if(position_man_y <= topposition)
{
life = life- lifevalue;
position_man_y = topposition + chg_man_y;
directionhit = 1;
}
if(life < 1)
{
isgameover = true;
position_man_y = SCREEN_HEIGHT + position_man_y;
}
}
//检查人物是否到达底部public void checkbottom(int bottomposition,int chg_man_y)
{
if(position_man_y > bottomposition - 16)
{
life = 0;
isgameover = true;
position_man_y = bottomposition + MAN_HEIGHT + chg_man_y;
}
}
public void checkside()
{
if(position_man_x < 9)
{
position_man_x = 8;
}
if(position_man_x > SCREEN_WIDTH-16-9)
{
position_man_x = SCREEN_WIDTH-16-8;
}
}
public void checkposition(Graphics graphics, int nearly_x, int nearly_y, int chg_man_y)
{
int check_num=1;
for(int i=0;i<16;i++)
{
if (position_man_x + MAN_WIDTH - nearly_x >= position_obj_x[i] && position_man_x <= position_obj_x[i] + OBJ_WIDTH - nearly_x)
{
switch(Int_tmp[i])
{
case 0://平板
if(position_obj_y[i] - position_man_y - MAN_HEIGHT >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT <= nearly_y)
{
life_change++;
if(life_change == 1 && life < 15)
life++;
position_man_y=position_obj_y[i]-16;
position_man_y = position_man_y - chg_man_y;
check_num = 0;
directionup = 0;
directionhit = 0;
}
break;
case 1://右滚板
if(position_obj_y[i] - position_man_y - MAN_HEIGHT >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT <= nearly_y)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y=position_obj_y[i]-16;
position_man_y = position_man_y - chg_man_y;
check_num = 0;
position_man_x++;
directionup = 0;
directionhit = 0;
}
break;
case 2://左滚板
if(position_obj_y[i] - position_man_y - MAN_HEIGHT >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT <= nearly_y)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y=position_obj_y[i]-16;
position_man_y = position_man_y - chg_man_y;
check_num = 0;
position_man_x--;
directionup = 0;
directionhit = 0;
}
break;
case 3://翻板
if(position_obj_y[i] - position_man_y - MAN_HEIGHT >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT <= nearly_y)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y = position_obj_y[i]-MAN_HEIGHT;
position_man_y = position_man_y - chg_man_y;
check_num = 0;
time_num++;
directionup = 0;
directionhit = 0;
if (time_num == 1)
{
game.MydrawRegion(graphics,I_obj1,0,96,position_obj_x[i], position_obj_y[i]-3,48,14);
}
else if (time_num == 2)
{
game.MydrawRegion(graphics,I_obj1,0,110,position_obj_x[i], position_obj_y[i]-4,48,16);
}
else if (time_num == 3)
{
game.MydrawRegion(graphics,I_obj1,0,126,position_obj_x[i], position_obj_y[i]-3,48,15);
}
else if (time_num == 4)
{
game.MydrawRegion(graphics,I_obj1,0,88,position_obj_x[i], position_obj_y[i],48,8);
position_man_y = position_man_y + chg_man_y + 2;
time_num = 0;
}
}
break;
case 4://弹板
//if(position_obj_y[i] - position_man_y - MAN_HEIGHT >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT <= nearly_y)
{
time_num++;
if (time_num == 1&&position_obj_y[i]-position_man_y-16>=-3&&position_obj_y[i]-position_man_y-16<=3)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y = position_obj_y[i]-16;
//position_man_y--;
check_num = 0;
game.MydrawRegion(graphics,I_obj1,0,147,position_obj_x[i], position_obj_y[i]-2,48,8);
position_man_y = position_man_y - OBJ_MOV*2;
directionup = 1;
directionhit = 0;
}
else if (time_num == 2&&position_obj_y[i]-position_man_y-16>=2&&position_obj_y[i]-position_man_y-16<=7)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y = position_obj_y[i]-16-5;
check_num = 0;
game.MydrawRegion(graphics,I_obj1,0,155,position_obj_x[i], position_obj_y[i]-3,48,9);
position_man_y = position_man_y - OBJ_MOV*2;
directionup = 1;
directionhit = 0;
}
else if (time_num == 3&&position_obj_y[i]-position_man_y-16>=7&&position_obj_y[i]-position_man_y-16<=12)
{
life_change++;
if(life_change == 1 && life < MAX_LIFE)
life++;
position_man_y = position_obj_y[i]-16-10;
check_num = 0;
game.MydrawRegion(graphics,I_obj1,0,164,position_obj_x[i], position_obj_y[i]-4,48,10);
position_man_y = position_man_y - OBJ_MOV*2;
time_num = 0;
directionup = 1;
directionhit = 0;
}
else
{
time_num--;
directionup = 0;
directionhit = 0;
}
}
break;
case 5://带刺的板
if(position_obj_y[i] - position_man_y - MAN_HEIGHT/2 >=- nearly_y && position_obj_y[i] - position_man_y - MAN_HEIGHT/2 <= nearly_y)
{
life_change++;
if(life_change == 1)
{
life = life - 3;
if(life < 1)
{
position_man_y = SCREEN_HEIGHT + position_man_y;
isgameover = true;
}
}
position_man_y=position_obj_y[i]-8;
position_man_y--;
check_num = 0;
directionup = 0;
directionhit = 1;
}
break;
}
}
}
if (check_num != 0)
{
position_man_y = position_man_y + MAN_MOV_Y;
life_change = 0;
directionup = 1;
directionhit = 0;
}
}
//检测按键信息public void inputs()
{
int keyState = getKeyStates();
if((keyState & LEFT_PRESSED)!=0)
{
if(position_man_x < SIDE_WIDTH)
{
position_man_x = SIDE_WIDTH;
}
else
{
position_man_x = position_man_x - MAN_MOV_X;
}
direction = 1;
}
else if((keyState & RIGHT_PRESSED )!=0)
{
if(position_man_x > SCREEN_WIDTH -MAN_WIDTH - SIDE_WIDTH - 1)
{
position_man_x = SCREEN_WIDTH - MAN_WIDTH - SIDE_WIDTH;
}
else
{
position_man_x = position_man_x + MAN_MOV_X;
}
direction = 2;
}
else if(((keyState & GAME_A_PRESSED)!=0 || (keyState & GAME_B_PRESSED)!=0 ||(keyState & GAME_C_PRESSED)!=0 || (keyState & GAME_D_PRESSED)!=0 || (keyState & FIRE_PRESSED)!=0 || (keyState & UP_PRESSED)!=0 || (keyState & DOWN_PRESSED)!=0 )&& isgameover)//(keyState & FIRE_PRESSED)!=0 &&
{
/*this.game.mainmenu.menuindex = 1;
game.startGame();*/
running = false;
man.closeman();
}
else direction = 0;
}
//显示物体public void draw_obj(Graphics graphics,Image image_show, int obj_id,int pos_x,int pos_y)
{
switch(obj_id)
{
case 0://平板
game.MydrawRegion(graphics,image_show,0,16,pos_x,pos_y, 48, 8);
break;
case 1://右滚板
game.MydrawRegion(graphics,image_show,0,24+man_picIndex * 8,pos_x,pos_y, 48, 8);
break;
case 2://左滚板
game.MydrawRegion(graphics,image_show,0,56+man_picIndex * 8,pos_x,pos_y, 48, 8);
break;
case 3://翻板
game.MydrawRegion(graphics,image_show,0,88,pos_x,pos_y, 48, 8);
break;
case 4://弹板
game.MydrawRegion(graphics,image_show,0,141,pos_x,pos_y, 48, 6);
break;
case 5://带刺的板
game.MydrawRegion(graphics,image_show,0,0,pos_x,pos_y, 48, 15);
break;
}
}
}