为了学习android，写了一个贪吃蛇，并没有看过谷歌的SDK中的贪吃蛇，凭着感觉写的，期间也学到了不少的知识，貌似在获取屏幕大小的时候用了过时的方法，那些以后再谈。
#代码：
Gameview.class
package cn.silenttt.tcs;
/**
+ Created by tt on 15-5-11.
+ 游戏主程序，将这个View设置为Activity就行了
+ File:GameView.class
*/
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.DisplayMetrics;
import android.view.Display;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import java.util.Random;
public class GameView extends View implements Runnable {
/* 声明Paint对象 */
private Paint mPaint = null;
private WindowManager wm ;
private Random rd= new Random();
private int Hight,Whight,bc,x=0,y=0,fx=1,WL,HL,ex,ey,Wei,Hei;
private int line,df=100;
private Canvas cs;
private GestureDetector gestureDetector;
private boolean alive=true;
private int score = 0,skill=0,type;
private skill SK = new skill();
public class mL extends GestureDetector.SimpleOnGestureListener {
public boolean onFling(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
float x = e2.getX() - e1.getX();
float y = e2.getY() - e1.getY();
System.out.println(x+" "+y);
if (Math.abs(x) > Math.abs(y) ) {
if(x>0) {
if (fx != 3) {
fx = 1;
}
}
else {
if (fx != 1) {
fx = 3;
}
}
} else{
if(y>0) {
if (fx != 0) {
fx = 2;
}
}
else {
if (fx != 2) {
fx = 0;
}
}
}
return true;
}
public boolean onDoubleTap(MotionEvent e){
if(alive){
if(bodynum==0) return true;
SK.skillNum=bd[1].type;
for(int i=1;i<bodynum;i++){
bd[i].type=bd[i+1].type;
}
bodynum--;
return true;
}
else {
x = 0;
y = 0;
alive = true;
fx = 1;
bodynum = 0;
score = 0;
return true;
}
}
}
class body {
public int x,y,type;
}
private body[] bd;
private int bodynum=0;
public void CreadEat(){
ex = rd.nextInt(WL/bc)*bc+Hei/96;
ey = rd.nextInt(HL/bc)*bc+Hei/96;
type = rd.nextInt(3);
}
public GameView(Context context,WindowManager yooooo) {
super(context);
wm = yooooo;
Hei = wm.getDefaultDisplay().getHeight();
Wei = wm.getDefaultDisplay().getWidth();
line = Hei/48;
Hight = Hei*5/6;
Whight = Wei*25/27;
//Hight = wm.getDefaultDisplay().getHeight()-320;
//Whight = wm.getDefaultDisplay().getWidth()*25/27;80
WL = Whight-Wei/27-line;
HL = Hight-Hei/48-line;
bc = Hei/48;
CreadEat();
bd = new body[1000];
bd[0] = new body();
gestureDetector = new GestureDetector(new mL());
/* 构建对象 */
mPaint = new Paint();
/* 开启线程 */
new Thread(this).start();
new Thread(SK).start();
}
public void UseSkill(){
}
public void Draw(int x,int y,int color){
int sx = Hei/48,sy = Hei/48;
mPaint.setColor(color);
mPaint.setStyle(Paint.Style.FILL);
cs.drawRect(sx+x,sy+y,sx+x+line,sy+y+line,mPaint);
}
public void GameOver(){
mPaint.setTextSize(100);
alive=false;
cs.drawText("Score:"+score,Wei/4,Hei/2,mPaint);
}
public void DrawEat(int x,int y,int color){
int sx = Hei/48,sy = Hei/48;
mPaint.setColor(color);
mPaint.setStyle(Paint.Style.FILL);
cs.drawCircle(x+sx,y+sy,20,mPaint);
}
public boolean Eat(){
if(ex==x+Hei/96&&ey==y+Hei/96){
return true;
}
else {
return false;
}
}
public int ColorTran(int a){
switch (a){
case 0:return Color.RED;//红色有角三倍速
case 1:return Color.GREEN;//绿色分数*2
case 2:return Color.WHITE;//白色减速
}
return Color.WHITE;
}
public int V(int score,int skill){
int ans=50;
if (score < 2500) {
ans=300 - score / 10;
}
if (score >= 2500) {
ans=50;
}
if(skill==-1) df=100;
if(skill==0) return ans/3;
if(skill==1) df=200;
if(skill==2) return ans*2;
return ans;
}
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
/* 设置画布的颜色 */
canvas.drawColor(Color.BLACK);
cs=canvas;
/* 设置取消锯齿效果 */
mPaint.setAntiAlias(true);
/* 设置裁剪区域 */
/* 线锁定画布 */
canvas.save();
/* 旋转画布 */
//canvas.rotate(45.0f);
/* 设置颜色及绘制矩形 */
mPaint.setTextSize(Hei/48);
mPaint.setColor(Color.YELLOW);
canvas.drawRect(new Rect(), mPaint);
cs.drawText("Score:"+score+" V="+V(score,SK.skillNum),Wei/4,80,mPaint);
/* 解除画布的锁定 */
canvas.restore();
if(Eat()){
if(bodynum==0){
bd[0]=new body();
bd[0].x=x;
bd[0].y=y;
}
score+=df;
bodynum++;
bd[bodynum]=new body();
bd[bodynum].x=ex-Hei/96;bd[bodynum].y=ey-Hei/96;bd[bodynum].type=type;
CreadEat();
}
for(int i=bodynum;i>=0;i--){
if(i==0){
switch (fx){
case 0:y-=bc;break;
case 1:x+=bc;break;
case 2:y+=bc;break;
case 3:x-=bc;break;
}
bd[i].x=x;bd[i].y=y;
Draw(x,y,Color.YELLOW);
}
else{
if(bd[i].x!=bd[i-1].x||bd[i].y!=bd[i-1].y) {
bd[i].x = bd[i - 1].x;
bd[i].y = bd[i - 1].y;
DrawEat(bd[i].x+Hei/96, bd[i].y+Hei/96, ColorTran(bd[i].type));
}
}
}
if(x>WL||x<0||y>HL||y<0){
GameOver();
}
DrawEat(ex,ey,ColorTran(type));
/* 设置颜色及绘制另一个矩形 */
mPaint.setColor(Color.GREEN);
mPaint.setStyle(Paint.Style.STROKE);
canvas.drawRect(new Rect(Hei/48,Hei/48,Whight,Hight), mPaint);
}
// 触笔事件
public boolean onTouchEvent(MotionEvent event) {
gestureDetector.onTouchEvent(event);
return true;
}
// 按键按下事件
public boolean onKeyDown(int keyCode, KeyEvent event) {
return true;
}
// 按键弹起事件
public boolean onKeyUp(int keyCode, KeyEvent event) {
return false;
}
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
return true;
}
public void run() {
while (true) {
try {
Thread.sleep(V(score,SK.skillNum));
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
// 使用postInvalidate可以直接在线程中更新界面
if(alive) postInvalidate();
}
}
}
MainActivity.class
package cn.silenttt.tcs;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WindowManager wm = this.getWindowManager();
GameView a = new GameView(this,wm);
setContentView(a);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
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