point p[] = new point[60];
double hx[] = new double[p.length];
double hy[] = new double[p.length];
point op;
point cp;
double dist, dire;
double xx, yy, xxx, yyy;
int now;
int bai = 10;
double sx, sy, ex, ey;
double dx[][] = new double[bai][p.length];
double dy[][] = new double[bai][p.length];
double percentage;
boolean mouseP;
double hCol, sCol, bCol, ihCol, isCol, ibCol;
double ohCol, osCol, obCol, iohCol, iosCol, iobCol;
double lhCol, lsCol, lbCol, ilhCol, ilsCol, ilbCol;
Color col;
Polygon pl;
//sample

[setup, 600, 600]{
	cp = point(monitorWidth / 2, monitorHeight / 2);
	dist = 60;
	op = point(cp.x, cp.y - 5);
	for(int i = 0; i < p.length; i ++){
		op.rotate(cp.x, cp.y, Math.toRadians(360 / p.length));
		hx[i] = op.x;
		hy[i] = op.y;
		p[i] = point(op.x, op.y);
	}
	for(int i = 0; i < bai; i++){
		for(int ii = 0; ii < p.length; ii ++){
			dx[i][ii] = cp.x;
			dy[i][ii] = cp.y;
		}
	}
	now = 0;
	setBackColor(255, 255, 255);
	mouseP = false;
	hCol = 0.2;
	sCol = 0.0;
	bCol = 1.0;
	ohCol = 0.7;
	osCol = 1.0;
	obCol = 0.0;
	lhCol = 0.9;
	lsCol = 0.0;
	lbCol = 1.0;
	ihCol = hCol;
	isCol = sCol;
	ibCol = bCol;
	iohCol = ohCol;
	iosCol = osCol;
	iobCol = obCol;
	ilhCol = lhCol;
	ilsCol = lsCol;
	ilbCol = lbCol;
}

[paint]{
		col = Color.getHSBColor((float)hCol, (float)sCol, (float)bCol);
		setColor(col);
		fillRect(0, 0, monitorWidth, monitorHeight);
		setPenSize(1);
		dist = 60.;
	//line
		for(int i = 0; i < bai; i ++){
			pl = new Polygon();
			for(int ii = 0; ii < p.length; ii ++){
				pl.addPoint((int)dx[i][ii], (int)dy[i][ii]);
			}
			col = Color.getHSBColor((float)(lhCol + i / 100.0), (float)lsCol, (float)(lbCol));
			setColor(col);
			fillPolygon(pl);
			if(obCol < osCol){
				col = Color.getHSBColor((float)ohCol, (float)osCol, (float)obCol);
				setColor(col);
				for(int ii = 0; ii < p.length; ii ++){
					fillOval(dx[i][ii], dy[i][ii], 1, 1);
				}
			}
		}
}

[interval, 0.1]{
	dire = cp.directionTo(hx[now], hy[now]);
	p[now].push(100, dire);
	now = now +1;
	if(p.length - 1 < now) now = 0; 
}

[interval, 3]{
	for(int i = 0; i < p.length; i ++){
		dire = cp.directionTo(hx[i], hy[i]);
		p[i].push(70, dire);		
	}
}
[interval, 10]{
	System.gc();
}

[always]{
	for(int i = 0; i < p.length; i++){
		dist = p[i].distanceTo(hx[i], hy[i]);
		dire = p[i].directionTo(hx[i], hy[i]);
		p[i].push(dist / 4., dire);
		sx = cp.x + (cp.x - p[i].x)*8;
		sy = cp.y + (cp.y - p[i].y)*8;
		for(int ii = 0; ii < bai; ii ++){
			dx[ii][i] += (sx - dx[ii][i])/(double)(ii);
			dy[ii][i] += (sy - dy[ii][i])/(double)(ii);
		}
	}
	
//mouse event
	if(mouseP == true){
	//bg
		ihCol = 0.0;
		isCol = 0.99;
		ibCol = 0.99;
	//line
		ilhCol = 0.7;
		ilsCol = 0.99;
		ilbCol = 0.99;
	//oval
		iohCol = 0.2;
		iosCol = 0.0;
		iobCol = 0.99;
	}else{
	//bg
		ihCol = 0.2;
		isCol = 0.0;
		ibCol = 0.99;
	//line
		ilhCol = 0.9;
		ilsCol = 0.0;
		ilbCol = 0.99;
	//oval
		iohCol = 0.2;
		iosCol = 0.99;
		iobCol = 0.0;
	}
//color calculation	
	lhCol += (ilhCol - lhCol)/5.0;
	lsCol += (ilsCol - lsCol)/5.0;
	lbCol += (ilbCol - lbCol)/5.0;
	ohCol += (iohCol - ohCol)/5.0;
	osCol += (iosCol - osCol)/5.0;
	obCol += (iobCol - obCol)/5.0;
	hCol += (ihCol - hCol)/5.0;
	sCol += (isCol - sCol)/5.0;
	bCol += (ibCol - bCol)/5.0;
	colormanage(lhCol);
	colormanage(lsCol);
	colormanage(lbCol);
	colormanage(hCol);
	colormanage(sCol);
	colormanage(bCol);
	colormanage(ohCol);
	colormanage(osCol);
	colormanage(obCol);
}

void colormanage(double colcol){
	if(colcol < 0.0)	colcol = 0.0;
	if(0.99 < colcol)	colcol = 0.99;
}

[mousePressed]{
	mouseP =true;
}

[mouseReleased]{
	mouseP = false;
}