android 放烟花效果

package com.dsl.fireworks;
//Download by http://www.codefans.net
import java.util.Random;


import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Paint;
import android.graphics.Shader;


public class Fires {
public int number;
public int colorNumber;
public int x;
public int y;
public int height;
public int width;
public int count;
public int nowY=0;

public long cTime;

public boolean isEnd=false;

public Paint paint;
public int nextColor;

public final static String red="#FD0303";
public final static String orange="#FD6703";
public final static String yellow="#FDE803";
public final static String green="#2DFD03";
public final static String blue="#03F1FD";
public final static String spinning ="#0B03FD";
public final static String purple="#CB03FD";

public Fires(FireworksSurface f){
Random r = new Random();
number=Math.abs(r.nextInt(9)); 
height=f.height;
width=f.width;
y=height*number/9;
nowY=height;
colorNumber=Math.abs(r.nextInt(7)); 
x=width*colorNumber/7;
paint=getPaint(colorNumber);
paint.setStyle(Paint.Style.FILL);
//paint.set
cTime=System.currentTimeMillis();
}

public void start(Canvas cs){
long nTime=System.currentTimeMillis();
if(nTime-cTime>=100){
cTime=nTime;
count++;

if(count>=number){
spread(cs);
isEnd=true;
}
else{
nowY-=height/9;
cs.drawCircle(x, nowY, 10, paint);
}
}
}

public void spread(Canvas cs){
paint.setStrokeWidth(3f);
LinearGradient lg=new LinearGradient(0,0,100,100,paint.getColor(),this.nextColor,Shader.TileMode.MIRROR);
paint.setShader(lg);
show(cs);
}


public Paint getPaint(int pN){
Paint p=new Paint();
switch(pN){
case 1:
p.setColor(Color.parseColor(red));
nextColor=Color.parseColor(orange);
break;
case 2:
p.setColor(Color.parseColor(orange));
nextColor=Color.parseColor(yellow);
break;
case 3:
p.setColor(Color.parseColor(yellow));
nextColor=Color.parseColor(green);
break;
case 4:
p.setColor(Color.parseColor(green));
nextColor=Color.parseColor(blue);
break;
case 5:
p.setColor(Color.parseColor(blue));
nextColor=Color.parseColor(spinning);
break;
case 6:
p.setColor(Color.parseColor(spinning));
nextColor=Color.parseColor(purple);
break;
case 7:
p.setColor(Color.parseColor(purple));
nextColor=Color.parseColor(red);
break;
}
return p;
}

public void show(Canvas cs){
switch(number){
case 1:
one(cs);
break;
case 2:
tow(cs);
break;
case 3:
three(cs);
break;
case 4:
four(cs);
break;
case 5:
five(cs);
break;
case 6:
six(cs);
break;
case 7:
seven(cs);
break;
case 8:
eight(cs);
break;
case 9:
nigh(cs);
break;
}
}

public void one(Canvas cs){
int[][] zu={
{0,100}
};
cs.drawLine(x, nowY, x+zu[0][0], nowY-zu[0][1], paint);
//cs.drawCircle(x+zu[0][0], nowY-zu[0][1], 10, paint);
}

public void tow(Canvas cs){
int[][] zu={
{0,100},{0,-100}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void three(Canvas cs){
int[][] zu={
{0,100},{86,-50},{-86,-50}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void four(Canvas cs){
int[][] zu={
{0,100},{100,0},{0,-100},{-100,0}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void five(Canvas cs){
int[][] zu={
{0,100},{95,31},{59,-81},{-59,-81},{-95,31}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void six(Canvas cs){
int[][] zu={
{0,100},{87,50},{87,-50},{0,-100},{-87,-50},{-87,50}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void seven(Canvas cs){
int[][] zu={
{0,100},{78,63},{98,-20},{45,-89},{-45,-89},{-98,-20},{-78,63}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void eight(Canvas cs){
int[][] zu={
{0,100},{71,71},{100,0},{71,-71},{0,-100},{-71,-71},{-100,0},{-71,71}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

public void nigh(Canvas cs){
int[][] zu={
{0,100},{64,76},{98,17},{87,-50},{34,-93},{-34,-93},{-87,-50},{-98,17},{-64,76}
};
for(int i=0;i<zu.length;i++){
cs.drawLine(x, nowY, x+zu[i][0], nowY-zu[i][1], paint);
//cs.drawCircle(zu[i][0], nowY-zu[i][1], 10, paint);
}
}

}

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