void DrawQuad(int x, int y,int width,int height, int angle=0,float scalex=0,float scaley=0)
{
glPushMatrix();
glTranslatef(x,y,0);
glTranslatef(width*scalex/2,height*scaley/2,0);
glRotatef(angle,0,0,1);
glTranslatef(-(width*scalex/2),-(height*scaley/2),0);
glScalef(scalex,scaley,0);
glBegin(GL_QUADS);
glVertex2f(0,0);
glVertex2f(0,width);
glVertex2f(width,height);
glVertex2f(height,0);
glEnd();
glPopMatrix();

}