Android平台2D游戏简单实例，android平台2d
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Android平台2D游戏简单实例，android平台2d
基于Android平台开发小游戏的首次尝试,通过自己设计的简易android框架,实现的简单2D壁球游戏1.[Java]代码
package com.tabletennis.main;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.view.KeyEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View;
public class MySurfaceView extends SurfaceView implements Callback,Runnable {
private SurfaceHolder sfh;
private Thread th;
private Canvas canvas;
private Paint paint;
private int ScreenW,ScreenH;
//ball informationetContentView
private int moveSpeedX=10;
private int moveSpeedY=10;
private int tempSpeedX=moveSpeedX;
private int tempSpeedY=moveSpeedY;
private int head_left=21;
private int head_top=41;
private int radius=10;//半径
private int ball_score=100;
//Bat information
private int bat_left=10;
private int bat_right=10;
private int bat_width=55;
private int bat_ply=5;
private int bat_move_speed=16;
private int ball_color=Color.WHITE;
//Process information
private int refresh_circle_time=50;
//Game status
private int score=0;
private int score_count=0;
private double time=0.0;
private boolean show_score=false;
private int game_status=GameStatus.GAME_READY;
private int chances=0;
//Window variabele
int off_count=1;
private Activity main_activity;
public MySurfaceView(Context context) {
super(context);
// TODO Auto-generated constructor stub
main_activity=(Activity) context;
sfh = this.getHolder();
sfh.addCallback(this);
paint=new Paint();
paint.setAntiAlias(true);
paint.setColor(Color.WHITE);
paint.setTextSize(16);
this.setKeepScreenOn(true);// 保持屏幕常亮
setFocusable(true);
th=new Thread(this);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if(game_status==GameStatus.GAME_NEW){
if(keyCode==KeyEvent.KEYCODE_DPAD_UP){
game_status=GameStatus.GAME_READY;
drawReadyWindow();
}
}
if(game_status==GameStatus.GAME_OVER){
if(keyCode==KeyEvent.KEYCODE_DPAD_UP){
init_game_data();
game_status=GameStatus.GAME_READY;
drawReadyWindow();
}
}
if(game_status==GameStatus.GAME_PAUSED){
//drawPausedWindow();
/*
* 显示快捷键菜单，并提示游戏已经ready
* */
if(keyCode==KeyEvent.KEYCODE_DPAD_RIGHT||keyCode==KeyEvent.KEYCODE_DPAD_LEFT||keyCode==KeyEvent.KEYCODE_DPAD_DOWN){
game_status=GameStatus.GAME_ON;
}else if(keyCode==KeyEvent.KEYCODE_DPAD_UP){
init_game_data();
drawReadyWindow();
game_status=GameStatus.GAME_READY;
}
}
if(game_status==GameStatus.GAME_READY){
//drawPausedWindow();
/*
* 显示快捷键菜单，并提示游戏已经ready
*/
if(keyCode==KeyEvent.KEYCODE_DPAD_RIGHT||keyCode==KeyEvent.KEYCODE_DPAD_LEFT){
game_status=GameStatus.GAME_ON;
}else if(keyCode==KeyEvent.KEYCODE_DPAD_DOWN){
game_status=GameStatus.GAME_OFF;
};
}
if(game_status==GameStatus.GAME_ON){
if(keyCode==KeyEvent.KEYCODE_DPAD_RIGHT){
if(bat_left+bat_width<ScreenW-5){
bat_left+=bat_move_speed;
bat_right=ScreenW-bat_left;
}
}else if(keyCode==KeyEvent.KEYCODE_DPAD_LEFT){
if(bat_left>5){
bat_left-=bat_move_speed;
bat_right=ScreenW-bat_left;
}
}else if(keyCode==KeyEvent.KEYCODE_DPAD_DOWN){
game_status=GameStatus.GAME_PAUSED;
}
}
return super.onKeyDown(keyCode, event);
}
private void drawRectFrame(Canvas canvas,Paint paint,int margin_left,int margin_right,int margin_top,int margin_bottom){
canvas.drawLine(margin_left, margin_top, margin_left,ScreenH-margin_bottom, paint);
canvas.drawLine(margin_left,margin_top,ScreenW-margin_right,margin_top,paint);
canvas.drawLine(ScreenW-margin_right,ScreenH-margin_bottom,ScreenW-margin_right,margin_top,paint);
canvas.drawLine(margin_left,ScreenH-margin_bottom,ScreenW-margin_right,ScreenH-margin_bottom,paint);
}
private void drawGameMonitor(Canvas canvas,Paint paint){
paint.setColor(Color.WHITE);
drawRectFrame(canvas,paint,10,10,ScreenH-40,10);
paint.setTextSize(18);
canvas.drawText("Time:"+(int)time, 20,ScreenH-20 , paint);
canvas.drawText("Score:"+score, 110,ScreenH-20 , paint);
canvas.drawText("Chances: "+chances, 200,ScreenH-20 , paint);
paint.setTextSize(16);
}
private void drawMainWindow(){
try{
canvas=sfh.lockCanvas();
Paint ball_paint=new Paint();
ball_paint.setAntiAlias(true);
ball_paint.setColor(ball_color);
canvas.drawColor(Color.DKGRAY);
canvas.drawLine(0,0,ScreenW/5-20,ScreenH/5-20,ball_paint);
canvas.drawLine(ScreenW,0,4*ScreenW/5+20,ScreenH/5-20,ball_paint);
canvas.drawLine(ScreenW/5-20,ScreenH/5-20,4*ScreenW/5+20,ScreenH/5-20,ball_paint);
canvas.drawLine(ScreenW/5-20,ScreenH/5-20,0,ScreenH,ball_paint);
canvas.drawLine(ScreenW*4/5+20,ScreenH/5-20,ScreenW,ScreenH,ball_paint);
canvas.drawCircle(head_left, head_top, radius, ball_paint);
canvas.drawRect(bat_left,ScreenH-bat_ply-100,bat_left+bat_width,ScreenH-90, paint);
paint.setColor(Color.RED);
canvas.drawLine(0, ScreenH-bat_ply-100, ScreenW, ScreenH-bat_ply-100, paint);
drawGameMonitor(canvas,paint);
paint.setColor(Color.RED);
//canvas.drawLine(0, ScreenH-92, ScreenW, ScreenH-92, paint);
head_left+=moveSpeedX;
head_top+=moveSpeedY;
paint.setColor(Color.WHITE);
if(show_score){
ball_paint.setTextSize(50);
canvas.drawText("+"+ball_score, ScreenW/2-50, ScreenH/2, ball_paint);
}
//paint.setColor(Color.WHITE);
if(head_left>=ScreenW-2*radius-20){
//Right edge
moveSpeedX*=-1;
show_score=false;
head_left=ScreenW-2*radius-20;
}
if(head_left<=20){
//Left edge
moveSpeedX*=-1;
show_score=false;
head_left=20;
}
if(head_top<=40){
//Top edge
moveSpeedY*=-1;
randomBallData();
show_score=false;
head_top=40;
}
if(head_top>=ScreenH-2*radius-100){
float ball_current_pos=(float)(head_left+radius);
if(ball_current_pos>=bat_left&&ball_current_pos<=bat_left+bat_width){
tempSpeedX=moveSpeedX;
tempSpeedY=moveSpeedY;
moveSpeedY*=-1;
score+=ball_score;
show_score=true;
score_count=100;
}else{
chances--;
if(chances>0){
game_status=GameStatus.GAME_CHANCES;
head_left=(int)(Math.random()*ScreenW-2*radius-20);
head_top=41;
if(head_left<=20){
head_left=21;
}
randomBallData();
}else
game_status=GameStatus.GAME_OVER;
}
}
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void drawPausedWindow() {
// TODO Auto-generated method stub
try{
canvas=sfh.lockCanvas();
paint.setColor(Color.WHITE);
canvas.drawColor(Color.DKGRAY);
drawRectFrame(canvas,paint,50,50,100,220);
Paint title_paint=new Paint();
title_paint.setTextSize(20);
title_paint.setAntiAlias(true);
title_paint.setColor(Color.YELLOW);
canvas.drawText("Game is paused!",78, 160, title_paint);
canvas.drawText("Press any key to continue", 70, 200, paint);
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void drawReadyWindow(){
// TODO Auto-generated method stub
try{
canvas=sfh.lockCanvas();
paint.setColor(Color.WHITE);
canvas.drawColor(Color.DKGRAY);
Paint title_paint=new Paint();
//canvas.drawRect(50, 100, 200, 200, paint);
drawRectFrame(canvas,paint,10,10,10,10);
//drawRectFrame(canvas,paint,20,20,20,20);
canvas.drawText("WELCOME TO PAY MY GAME", 50, 100, paint);
canvas.drawText("------Copyright by Skyrain-------", 42, 300, paint);
title_paint.setTextSize(35);
title_paint.setAntiAlias(true);
title_paint.setColor(Color.WHITE);
title_paint.setTypeface(Typeface.SANS_SERIF);
canvas.drawText("Tennis Game", 55, 250, title_paint);
Resources res=getResources();
Bitmap bmp=BitmapFactory.decodeResource(res, R.drawable.icon);
canvas.drawBitmap(bmp, 120,150, title_paint);
paint.setTextSize(10);
canvas.drawText("************************", 80, 350, paint);
canvas.drawText("* [Left]or[Right]: Start/Move", 80, 365, paint);
canvas.drawText("*", 220, 365, paint);
canvas.drawText("* [Down]: Exit", 80, 380, paint);
canvas.drawText("*", 220, 380, paint);
canvas.drawText("************************", 80, 395, paint);
//Thread.sleep(3000);
//game_status=GameStatus.GAME_READY;
paint.setTextSize(16);
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void drawOffWindow() {
// TODO Auto-generated method stub
if(off_count==7){
main_activity.finish();
}
try{
canvas=sfh.lockCanvas();
paint.setColor(Color.WHITE);
canvas.drawColor(Color.DKGRAY);
drawRectFrame(canvas,paint,50,50,100,250);
Paint title_paint=new Paint();
title_paint.setTextSize(20);
title_paint.setAntiAlias(true);
title_paint.setColor(Color.RED);
canvas.drawText("Game is Exiting", 93, 140, title_paint);
title_paint.setColor(Color.GREEN);
for(int i=0;i<off_count;i++){
canvas.drawCircle(80+i*28, 160, 5, title_paint);
}
off_count++;
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void drawOverWindow() {
// TODO Auto-generated method stub
try{
canvas=sfh.lockCanvas();
paint.setColor(Color.WHITE);
canvas.drawColor(Color.DKGRAY);
drawRectFrame(canvas,paint,50,50,100,200);
Paint title_paint=new Paint();
title_paint.setTextSize(20);
title_paint.setAntiAlias(true);
title_paint.setColor(Color.YELLOW);
canvas.drawText("Your Total Score", 90, 140, title_paint);
//canvas.drawText("[YOUR SCORE]: 0000", 100, 150, paint);
//paint.setColor(Color.RED);
//canvas.drawText("[score] ", 130, 170, paint);
title_paint.setTextSize(43);
title_paint.setColor(Color.RED);
canvas.drawText(""+score, 120, 195, title_paint);
paint.setColor(Color.WHITE);
canvas.drawText("Press [UP] to continue", 80, 230, paint);
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void drawChancesWindow() {
// TODO Auto-generated method stub
try{
canvas=sfh.lockCanvas();
paint.setColor(Color.WHITE);
canvas.drawColor(Color.DKGRAY);
drawRectFrame(canvas,paint,15,15,120,200);
Paint title_paint=new Paint();
title_paint.setTextSize(20);
title_paint.setAntiAlias(true);
title_paint.setColor(Color.YELLOW);
canvas.drawText("You have chances left!", 35, 210, title_paint);
title_paint.setTextSize(50);
title_paint.setColor(Color.RED);
canvas.drawText(""+chances,130,220,title_paint);
}catch(Exception e){
e.printStackTrace();
}finally{
if(canvas!=null){
sfh.unlockCanvasAndPost(canvas);
}
}
}
private void init_game_data() {
// TODO Auto-generated method stub
head_left=(int)(Math.random()*ScreenW-2*radius-20);
head_top=41;
if(head_left<=20){
head_left=21;
}
randomBallData();
bat_left=ScreenW/2;
score=0;
chances=3;
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
return super.onKeyUp(keyCode, event);
}
public void draw() throws InterruptedException{
if(game_status==GameStatus.GAME_ON){
drawMainWindow();
}else if(game_status==GameStatus.GAME_OVER){
drawOverWindow();
}else if(game_status==GameStatus.GAME_PAUSED){
drawPausedWindow();
}else if(game_status==GameStatus.GAME_OFF){
drawOffWindow();
try {
Thread.sleep(500);
//main_activity.finish();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else if(game_status==GameStatus.GAME_CHANCES){
drawChancesWindow();
Thread.sleep(2000);
game_status=GameStatus.GAME_ON;
}
}
@Override
public void run() {
// TODO Auto-generated method stub
while(true){
time+=0.1;
try{
draw();
Thread.sleep(refresh_circle_time);
//Thread.sleep(100000);
}catch(InterruptedException e){
e.printStackTrace();
}
}
}
private void randomBallData(){
int x=moveSpeedX/Math.abs(moveSpeedX);
int y=moveSpeedY/Math.abs(moveSpeedY);
ball_score=(int)(Math.random()*100);
if(ball_score==0){
ball_score=100;
}
if(ball_score<30){
ball_color=Color.LTGRAY;
moveSpeedX=12;
moveSpeedY=12;
}else if(ball_score>=30&&ball_score<50){
ball_color=Color.WHITE;
moveSpeedX=14;
moveSpeedY=14;
}else if(ball_score>=50&&ball_score<70){
ball_color=Color.YELLOW;
moveSpeedX=16;
moveSpeedY=16;
}else if(ball_score>=70&&ball_score<90){
ball_color=Color.BLUE;
moveSpeedX=18;
moveSpeedY=18;
}else if(ball_score>=90&&ball_score<=100){
ball_color=Color.RED;
moveSpeedX=20;
moveSpeedY=20;
}
moveSpeedX*=x;
moveSpeedY*=y;
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
init_game_data();
ScreenW=this.getWidth();
ScreenH=this.getHeight();
head_left=21;
head_top=41;
bat_left=21;
bat_right=ScreenW-bat_left;
drawReadyWindow();
th.start();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
}
}
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