// ALUNO : Alex Zerio   970154
// 16/11/2000


#include "colors.inc"

camera {
	location <150, 30, 150>
	sky < 0, 1, 0>
    look_at <80, 7, 27>
  }

 light_source { <20,15,50> White }
 light_source { <120,15,50> White }
 background { White }

#declare X = 0;
#declare Z = 0;

#declare N = 1;
#declare i = 5;
#declare g = seed(pi);

#declare terreo =
difference{
	box { <0,0,0>, <27, 14, 27> pigment { color Blue } }
	box { <9,0,27.5>, <18, 9, 25> pigment { color Black } }
}

#declare andar =
difference{
	box { < 0, 14,  0>, <27, 28, 27> pigment { color Blue }}	
	box { < 3, 18, 27.5>, <12, 25, 25> pigment { color Black }}	
	box { <15, 18, 27.5>, <24, 25, 25> pigment { color Black }}
	box { <-0.5,  18, 8>,  < 2, 25, 24> pigment { color Black }}
	box { <27.5, 18, 8>,  <25, 25, 24> pigment { color Black }}
}


union{
    #while (i > 0)
		#declare X = int(rand(g)*5)+27;
    	#declare Z = int(rand(g)*5)+27;	
		object{terreo translate <30*(i-1), 0, 0>}
		#declare N = int(rand(g)*5)+1;
		#while (N > 0)
			object{andar translate <30*(i-1),14*(N-1),0>}
			#declare N = N - 1;
		#end
		#declare i = i - 1;
	#end

}