float angleX,angleY,bangleX,bangleY,scal,scal1,tempo;
	Croisillon letreillage,letreillage1;
void setup(){
	size(750,400);
	noStroke();
	letreillage=new Croisillon(800,730,2.9f);
	//letreillage1=new Croisillon(380,540,3);
	tempo=0;	
}
void loop(){
	tempo+=0.1f;
	background(255*sin(tempo),150*cos(tempo),0);
	translate(500,-7500,-13000);
	letreillage.dessiner(30,30);

}

//	++++++++++++++++++++++++++++++++++++++++
//	++++++++++++++++++++++++++++++++++++++++
class Croisillon{
		float a,b,n,na,nb,tempo,aa,bb,naa,nbb,nn,cor,sor;
	public Croisillon(float a,float b,float n){
		this.aa=a;
		this.bb=b;
		this.nn=n;
		tempo=0;
	}	
void recalculer(){
	tempo+=0.05f;
	a=aa+400*cos(tempo);
	b=bb+400*cos(tempo*2);
	n=nn+1.6f*cos(tempo*0.7f);
	na=a*n;
	nb=b*n;
	 cor=255*cos(tempo)*cos(tempo);
	sor=255*sin(tempo)*sin(tempo);	
}
void dessiner(int maxx,int maxy){

	recalculer();
	for(int i=-maxx;i<maxx;i+=2){
		for(int j=0;j<maxy;j+=2){
		 	barre1(i*na,j*nb,(i+1)*na,(j+1)*nb);
			barre2((i+2)*na,j*nb,(i+1)*na,(j+1)*nb);
			barre1((i+1)*na,(j+1)*nb,(i+2)*na,(j+2)*nb);
			barre2((i+1)*na,(j+1)*nb,i*na,(j+2)*nb);
					 	
		}
	}
}
void barre2(float x1,float y1,float x2,float y2){
	beginShape(POLYGON);

	fill(cor,0.7f*cor,155-0.2f*sor);
		vertex(x1-a,y1,0);vertex(x1,y1,0);vertex(x1,y1+b,0);

	fill(255-sor,255-0.5f*sor,0.3f*cor);	
		vertex(x2+a,y2,0);     fill(255);
vertex(x2,y2,0);vertex(x2,y2-b,0);
		endShape();
	flanc(x1-a,y1,x2,y2-b);
	flanc(x1,y1+b,x2+a,y2);				
}
void barre1(float x1,float y1,float x2,float y2){
	beginShape(POLYGON);
		//fill(150+scal,80,scal+50);
	fill(255-sor*0.1f,0.5f*cor,0.1f*cor);
		vertex(x1,y1+b,0);vertex(x1,y1,0);vertex(x1+a,y1,0);
		//fill(50+scal,50,scal1);
	fill(cor,0.5f*sor,0.5f*cor);	
		vertex(x2,y2-b,0);      fill(0);vertex(x2,y2,0);
   
                vertex(x2-a,y2,0);
	endShape();
	flanc(x1,y1+b,x2-a,y2);
	flanc(x1+a,y1,x2,y2-b);		
}
void flanc(float x1,float y1,float x2,float y2){

	beginShape(POLYGON);
	fill(255);	
	vertex(x1,y1,0);
	fill(255,sor,0.5f*cor);		
	        vertex(x1+2*cor,y1+3*sor,300+10*sor);
			
	fill(180+0.3f*sor,sor*0.8f,0.5f*cor);	
	        vertex(x2+2*cor,y2+3*sor,300+10*sor);
	fill(0);
	vertex(x2,y2,0);
	endShape();
}
}