// Exemplo de arquivo de descricao de cena para POV-ray
// Last edited on 2020-09-30 19:57:13 by jstolfi

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

 background{ color rgb < 0.75, 0.8, 0.85 > }

#declare tx_plastico = 
  texture{
    pigment{ color rgb < 0,1,1> }
    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 < 0, 0, 1 > }
    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
  }

// ======================================================================
// DESCRI��O DA CENA 


#include "eixos.inc"
object{ eixos(3.00)}

#declare A = array[1000];
#declare k = 0;

#macro tan1(i, j)
  #declare tanque1=
    union{
      cylinder{
            <0, 0,0>, <0, 0, 1>, 1
            texture{tx_plastico}
          }
      cone{
          <0,0,1>, 1
          <0, 0, 2> 2
          texture{tx_plastico}
          }
      cylinder{
            <0, 0,2>, <0, 0, 3>, 2
            texture{tx_plastico}
          }
        cone{
          <0,0,3>, 2
          <0, 0, 4> 1
          texture{tx_plastico}
          }
      cylinder{
            <0, 0,4>, <0, 0, 5>, 1
            texture{tx_plastico}
          }
      
      cylinder{
            <0, 0,1.5>, <1, 2, 4>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <0, 0,5>, <0, 0, 5.5>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <0, 0,2.5>, <3, 0, 2.5>, 0.2
            texture{tx_xadrez}
          }
    }

  union{object{tanque1 translate<i, j, 0> scale<0.5, 0.5, 0.5>}}
  #declare A[k] = <1/2 + i, 2/2 + j, 4/2>; 
  #declare A[k+1] = <0/2 + i, 0/2 + j, 5.5/2>;
  #declare A[k+2] = <3/2 + i, 0/2 + j, 2.5/2>; 
  #declare k = k+3;
#end

#macro tan2(i, j)
  #declare tanque2=
    union{
      box {
        <-1.2, -1.2, 0>, <1.2, 1.2, 1>
        texture{tx_plastico}        
      }
      cylinder{
            <0, 0,1>, <0, 0, 2>, 0.7
            texture{tx_plastico}
          }
      sphere{
        <0, 0, 4>, 2
        texture{tx_plastico}
      }
      cylinder{
            <0, 0,6>, <0, 0, 6.5>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <0, 0,4>, <3, 0, 4>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <0, 0,4>, <0, 3, 4>, 0.2
            texture{tx_xadrez}
          }
    
    }

  union{object{tanque2 translate<i, j, 0> scale<0.5, 0.5, 0.5>}}
  #declare A[k] = <0/2 + i, 0/2 + j, 6.5/2> ;
  #declare A[k+1] = <3/2 + i, 0/2 + j, 4/2>;
  #declare A[k+2] = <0/2 + i, 3/2 + j, 4/2>; 
  #declare k = k+3;
#end

#macro tan3(i, j)
  #declare tanque2=
    union{
      cylinder{
            <0, 0,0>, <0, 0, 1>, 0.7
            texture{tx_plastico}
          }
      cone{
          <0,0,1>, 1
          <0, 0, 4> 3
          texture{tx_plastico}
          }
      cylinder{
            <0, 0,4>, <0, 0, 4.5>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <-2.5, 0,4>, <-2.5, 0, 4.5>, 0.2
            texture{tx_xadrez}
          }
      cylinder{
            <2.5, 0,4>, <2.5, 0, 4.5>, 0.2
            texture{tx_xadrez}
          }
    }

  union{object{tanque2 translate<i, j, 0>  scale<0.5, 0.5, 0.5>}}
  #declare A[k] = <0/2 + i, 0/2 + j, 4.5/2>; 
  #declare A[k+1] = <-2.5/2 + i, 0/2 + j, 4.5/2>;
  #declare A[k+2] = <2.5/2 + i, 0/2 + j, 2.5/2> ;
  #declare k = k+3;
#end



#macro gera_tanques(m, n)
  #declare roleta1 = seed(2873);

  #declare i = 0;
  

  #while(i<m)
  #declare j = 0;
    #while(j<n)
      #declare random =rand(roleta1);
      #if(int(3*random) = 1)
        tan1(i*7, j*7)
      #else
        #if(int(3*random) = 2)
        tan2(i*7, j*7)
        #else
        tan3(i*7, j*7)
        #end
      #end
      #declare j = j+1;
    #end
    #declare i = i+1;
  #end

  #local alt = 5;
  #declare roleta2 = seed(2378);
  #while(k >1)
    #local random1 = int(k*rand(roleta2));
    #local random2 = int((k-1)*rand(roleta2));
    // if(random2 >=random1)
    //   #local random2 = random2 + 1;
    // #end

    union{
      cylinder{
        A[random1], <A[random1].x, A[random1].y, A[random1].x+alt>, 0.1
      }
      cylinder{
        A[random2], <A[random2].x, A[random2].y, A[random2].x+alt>, 0.1
      }
      
      
    }
    #declare k = k-2;

  #end

  


#end



gera_tanques(2, 2)



#include "camlight.inc"
#declare centro_cena = < 0.00, 0.00, 1.00 >;
#declare raio_cena = 8.0;
#declare dir_camera = < 100, 100, 60 >;
#declare dist_camera = 6*raio_cena;
#declare intens_luz = 1.20;
camlight(centro_cena, raio_cena, dir_camera, dist_camera , z, intens_luz)