//Nome: Rodrigo de Sousa Serafim da Silva
//RA: 118607
//Laboratório

// ======================================================================
// CORES E TEXTURAS

background{ color rgb < 0.75, 0.80, 0.85 > }

#declare tx_plastico = 
  texture{
    pigment{ color rgb < 0.10, 0.80, 1.00 > }
    finish{ diffuse 0.8 ambient 0.1 specular 0.5 roughness 0.005 }
  }

#declare tx_fosca = 
  texture{
    pigment{ color rgb < 1.00, 0.80, 0.10 > }
    finish{ diffuse 0.9 ambient 0.1 }
  }

#declare tx_espelho = 
  texture{
    pigment{ color rgb < 1.00, 0.85, 0.30 > }
    finish{ diffuse 0.2 reflection 0.7*< 1.00, 0.85, 0.30 > ambient 0.1 }
  }

#declare tx_vidro = 
  texture{
    pigment{ color rgb < 0.85, 0.95, 1.00 > filter 0.70 }
    finish{ diffuse 0.03 reflection 0.25 ambient 0.02 specular 0.25 roughness 0.005 }
  }


#declare tx_xadrez =
  texture{
    pigment{ checker color rgb < 0.10, 0.32, 0.60 >, color rgb < 1.00, 0.97, 0.90 > }
    finish{ diffuse 0.9 ambient 0.1 }
    scale 2.0
  }



	

// ======================================================================
// DESCRIÇÃO DA CENA 

#declare raio = 2.000;

// Partes da cena:
  
#declare bolinha = 
  sphere{ < 0,0,0 >, 0.60 }
 
#declare bolota = 
  sphere{ < 0,0,0 >, 1.50 }
 
#declare bola =
  sphere{
    < 0.00, 0.00, 0.00 >, raio 
    texture{ tx_plastico }
  }
  
#declare pino = 
  cylinder{
    < -2.00, +2.00, -1.00 >,
    < +2.00, -2.00, +1.00 >,
    0.75
    texture{ tx_fosca }
  }
  
#declare furo = 
  cylinder{
    < -1.00, -2.00, -2.00 >,
    < +1.00, +2.00, +2.00 >,
    0.75*raio
    texture{ tx_fosca }
  }



#include "eixos.inc"

#include "retalho-simples.inc"

#declare P = array[4][4]{
{<0,0,2>, <3,0,2>,<7,0,2>,<10,0,2>}
{<0,3,2>, <3,3,3>,<7,3,3>,<10,3,2>}
{<0,7,2>, <3,7,3>,<7,7,3>,<10,7,2>}
{<0,10,2>, <3,10,2>,<7,10,2>, <10,10,2>}
}


#declare NH = 3;
#declare NV = 2;

#declare PP = array[NV][NH][4][4]

#macro carroceria(PP,NH,NV)
union{
	#local i = 0;
	#while(i<NV)
		#local j = 0;
		#while (j<NH)
			//object{retalho(P,0.1,tx_fosca,tx_plastico) translate <i*10,j*10,0>}
			#local i1 = 0;
			#while(i1<4)
				#local j1 = 0;
				#while (j1<4)
					#if(i=0 & j = 0)
					#declare PP[i][j][i1][j1] = P[i1][j1] * <1,1,0>;
					#else
					#declare PP[i][j][i1][j1] = P[i1][j1] + <10*i,10*j,(i+j)/3>+<(i+j)/3,i/5,j/4>;
					#end
					#local j1 = j1+1;
				#end
				#local i1 = i1+1;
			#end
			#local j = j+1;
		#end
		#local i = i+1;
	#end
	//emendar todos os retalhos horizontalmente
	#local i = 1;
	#while (i<NV)
		#local j = 0;
		#while (j<NH)
			emenda_retalho(PP,i-1,j,i,j)
			#local j = j+1;
		#end
		#local i = i+1;
	#end
	//emendar todos os retalhos verticalmente
	#local i = 0;
	#while (i<NV)
		#local j = 1;
		#while (j<NH)
			emenda_retalho(PP,i,j-1,i,j)
			#local j = j+1;
		#end
		#local i = i+1;
	#end

	//desenhar retalho
	#local i = 0;
	#while(i<NV)
		#local j = 0;
		#while (j<NH)
			#local B = array[4][4]
			#local i1 = 0;
			#while (i1<4)
				#local j1 = 0;
				#while (j1<4)
					#local B[i1][j1] = PP[i][j][i1][j1];
					#local j1 = j1+1;
				#end
				#local i1 = i1+1;
			#end
			object{retalho(B,0.1,tx_fosca,tx_plastico)}
			#local j = j+1;
		#end
		#local i = i+1;
	#end
}
#end

#macro emenda_retalho(PP,r0,s0,r1,s1)
	#local i = 0;
	#while (i<4)
		#if(s0=s1)
			#declare PP[r0][s0][i][3] = (PP[r0][s0][i][2] + PP[r1][s1][i][1])/2;
			#declare PP[r1][s1][i][0] = (PP[r0][s0][i][2] + PP[r1][s1][i][1])/2;
		#else
			#declare PP[r0][s0][3][i] = (PP[r0][s0][2][i] + PP[r1][s1][1][i])/2;
			#declare PP[r1][s1][0][i] = (PP[r0][s0][2][i] + PP[r1][s1][1][i])/2;
		#end
		#local i = i+1;
	#end
#end

object{carroceria(PP,NH,NV)}

#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 0.00 >;
#declare raio_cena = 50;
#declare dir_camera = < 1.50, 1.00, 0.20 >;
#declare dist_camera = raio_cena;
#declare intens_luz = 1;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)