#version 3.7;

global_settings {
    assumed_gamma 1.3 max_trace_level 16
    radiosity {
        pretrace_start 0.08
        pretrace_end   0.01
        count 200
        nearest_count 10
        error_bound 0.5
        recursion_limit 2
        low_error_factor 0.5
        gray_threshold 0.0
    }
}

#include "colors.inc"

background { color rgb <0.78, 0.86, 0.98> }

// -------------------- Camera --------------------
camera {
  location <0, 6.6, -18.5>
  look_at  <0, 2.9,  7.5>
  angle 40
  up <0,9,0>
  right <16,0,0>  // right,up -> 16:9
}

// -------------------- Lights (warm, soft shadows) --------------------
light_source {
  <45, 60, -35>
  color rgb <1.00, 0.92, 0.80>*1.10
  area_light <10,0,0>, <0,0,10>, 6, 6
  adaptive 1
  jitter
}

light_source {
  <-28, 28, -8>
  color rgb <1.00, 0.90, 0.78>*0.55
  area_light <8,0,0>, <0,0,8>, 5, 5
  adaptive 1
  jitter
}

// subtle sky fill (fast)
light_source {
  <0, 200, 0>
  color rgb <0.78, 0.86, 0.98>*0.18
  shadowless
}

// -------------------- Atmosphere --------------------
fog {
  distance 90
  color rgb <0.78, 0.86, 0.98>
  fog_type 2
  fog_offset 0.0
  fog_alt 20
  turbulence 0.0
}

// -------------------- Finishes --------------------
#declare F_Plaster = finish { diffuse 0.86 roughness 0.07 specular 0.06 };
#declare F_Stone   = finish { diffuse 0.82 roughness 0.12 specular 0.05 };
#declare F_Wood    = finish { diffuse 0.70 roughness 0.10 specular 0.10 };
#declare F_Roof    = finish { diffuse 0.78 roughness 0.09 specular 0.06 };
#declare F_Ground  = finish { diffuse 0.92 roughness 0.14 specular 0.02 };
#declare F_Glass   = finish { diffuse 0.03 specular 0.55 roughness 0.01 reflection 0.08 };

// -------------------- Palette --------------------
#declare C_Plaster1 = color rgb <0.88, 0.84, 0.78>;
#declare C_Plaster2 = color rgb <0.80, 0.85, 0.86>;
#declare C_Trim     = color rgb <0.32, 0.20, 0.12>;
#declare C_Roof     = color rgb <0.55, 0.25, 0.18>;
#declare C_Stone    = color rgb <0.72, 0.72, 0.70>;
#declare C_RoadA    = color rgb <0.52, 0.50, 0.48>;
#declare C_RoadB    = color rgb <0.62, 0.60, 0.57>;
#declare C_SideA    = color rgb <0.70, 0.68, 0.64>;
#declare C_SideB    = color rgb <0.78, 0.76, 0.72>;

// -------------------- Procedural textures (fast, no image maps) --------------------
#declare T_Wood =
texture {
  pigment {
    wood
    color_map {
      [0.00 color C_Trim*0.70]
      [0.30 color C_Trim*0.95]
      [0.60 color C_Trim*1.08]
      [1.00 color C_Trim*0.78]
    }
    scale 0.22
    rotate <0,90,0>
  }
  normal { ripples 0.14 scale 0.16 }
  finish { F_Wood }
};

#declare T_Roof =
texture {
  pigment {
    // tile-row suggestion + gentle speckle
    average
    pigment_map {
      [1 gradient x
        color_map {
          [0.00 color C_Roof*0.78]
          [0.10 color C_Roof*1.12]
          [0.20 color C_Roof*0.84]
          [1.00 color C_Roof*0.84]
        }
        scale 0.20
      ]
      [1 granite
        color_map {
          [0.00 color C_Roof*0.90]
          [1.00 color C_Roof*1.12]
        }
        scale 0.35
      ]
    }
  }
  normal { bumps 0.25 scale 0.09 }
  finish { F_Roof }
};

#declare T_StoneBlocks =
texture {
  pigment {
    // blocky stone feel using crackle + granite variation
    average
    pigment_map {
      [2 crackle
        color_map {
          [0.00 color C_Stone*0.82]
          [0.45 color C_Stone*1.05]
          [1.00 color C_Stone*0.76]
        }
        scale 0.85
      ]
      [1 granite
        color_map {
          [0.00 color C_Stone*0.86]
          [1.00 color C_Stone*1.18]
        }
        scale 0.55
      ]
    }
  }
  normal {
    average
    normal_map {
      [1 crackle 0.55 scale 0.55]
      [1 bumps   0.25 scale 0.35]
    }
  }
  finish { F_Stone }
};

#declare T_Plaster1 =
texture {
  pigment {
    granite
    color_map {
      [0.00 color C_Plaster1*0.86]
      [0.55 color C_Plaster1*1.03]
      [1.00 color C_Plaster1*1.14]
    }
    scale 0.55
  }
  normal { bumps 0.12 scale 0.22 }
  finish { F_Plaster }
};

#declare T_Plaster2 =
texture {
  pigment {
    granite
    color_map {
      [0.00 color C_Plaster2*0.86]
      [0.55 color C_Plaster2*1.03]
      [1.00 color C_Plaster2*1.14]
    }
    scale 0.55
  }
  normal { bumps 0.12 scale 0.22 }
  finish { F_Plaster }
};

#declare T_Door =
texture {
  pigment {
    wood
    color_map {
      [0.00 color rgb <0.14,0.10,0.07>]
      [0.55 color rgb <0.23,0.16,0.11>]
      [1.00 color rgb <0.11,0.08,0.05>]
    }
    scale 0.20
    rotate <0,90,0>
  }
  normal { ripples 0.18 scale 0.12 }
  finish { diffuse 0.66 roughness 0.10 specular 0.10 }
};

#declare T_Glass =
texture {
  pigment { color rgbf <0.70, 0.85, 0.95, 0.82> }
  finish { F_Glass }
};

// --- FIX: proper macro that EXPANDS a texture block (no invalid function()) ---
#macro Tex_Cobble(ColA, ColB, ScaleV)
texture {
  pigment {
    crackle
    color_map {
      [0.00 color (ColA*0.78)]
      [0.55 color (ColB*1.08)]
      [1.00 color (ColA*0.74)]
    }
    scale (ScaleV)
  }
  normal {
    average
    normal_map {
      [1 crackle 0.65 scale (ScaleV*0.55)]
      [1 bumps   0.18 scale (ScaleV*0.30)]
    }
  }
  finish { F_Ground }
}
#end

// -------------------- Sky gradient (fast) --------------------
sphere {
  <0,0,0>, 500
  hollow
  texture {
    pigment {
      gradient y
      color_map {
        [0.00 color rgb <0.65,0.76,0.90>]
        [0.55 color rgb <0.78,0.86,0.98>]
        [1.00 color rgb <0.92,0.95,1.00>]
      }
      scale 300
      translate <0,-30,0>
    }
    finish { diffuse 0 emission 1 }
  }
  no_shadow
}

// -------------------- Ground --------------------
plane {
  y, 0
  Tex_Cobble(color rgb <0.70,0.72,0.70>, color rgb <0.76,0.78,0.76>, 2.9)
}

// Road + sidewalks (slightly raised for clean edges)
union {
  box { <-3.2, 0.01, -2>, < 3.2, 0.04, 24> Tex_Cobble(C_RoadA, C_RoadB, 1.55) }
  box { <-6.5, 0.01, -2>, <-3.2, 0.05, 24> Tex_Cobble(C_SideA, C_SideB, 1.20) }
  box { < 3.2, 0.01, -2>, < 6.5, 0.05, 24> Tex_Cobble(C_SideA, C_SideB, 1.20) }
}

// -------------------- Building details --------------------
#macro WindowSet(X1,X2, Y1,Y2, Z, Depth)
union {
  // frame
  box { <X1, Y1, Z-Depth>, <X2, Y2, Z> texture { T_Wood } }
  // mullion (simple)
  box { <(X1+X2)/2-0.03, Y1+0.05, Z-Depth>, <(X1+X2)/2+0.03, Y2-0.05, Z> texture { T_Wood } }
  // glass inset
  box { <X1+0.06, Y1+0.06, Z-Depth+0.02>, <X2-0.06, Y2-0.06, Z-0.02> texture { T_Glass } }
}
#end

#macro DoorSimple(X1,X2, Y1,Y2, Z, Depth)
union {
  box { <X1, Y1, Z-Depth>, <X2, Y2, Z> texture { T_Door } }
  // small top lintel trim
  box { <X1-0.05, Y2, Z-Depth>, <X2+0.05, Y2+0.08, Z> texture { T_Wood } }
  // threshold stone
  box { <X1-0.02, 0.00, Z-0.02>, <X2+0.02, 0.06, Z+0.06> texture { T_StoneBlocks } }
}
#end

#macro Building(BaseMin, BaseMax, WallTex)
#local Zf = BaseMin.z;
#local Xc = (BaseMin.x+BaseMax.x)/2;
#local YTop = BaseMax.y;

union {
  // subtle corner trim pilasters
  box { <BaseMin.x-0.03, 0, Zf-0.02>, <BaseMin.x+0.15, YTop, Zf+0.06> texture { T_Wood } }
  box { <BaseMax.x-0.15, 0, Zf-0.02>, <BaseMax.x+0.03, YTop, Zf+0.06> texture { T_Wood } }

  // plinth band (stone base)
  box {
    <BaseMin.x, 0.00, BaseMin.z>,
    <BaseMax.x, 0.28, BaseMax.z>
    texture { T_StoneBlocks }
  }

  // main volume with cutouts
  difference {
    box { BaseMin, BaseMax texture { WallTex } }

    // door on front face
    box { <Xc-0.60, 0.00, Zf-0.001>, <Xc+0.60, 1.90, Zf+0.20> }

    // window recesses
    #local H = 0.62;
    #local Re = 0.10;
    #local Yw1 = 2.05;
    #local Yw2 = 3.10;
    #local Yw3 = 4.15;

    #if (YTop > 2.9)
      box { <Xc-1.12, Yw1, Zf-0.001>, <Xc-0.08, Yw1+H, Zf+Re> }
      box { <Xc+0.08, Yw1, Zf-0.001>, <Xc+1.12, Yw1+H, Zf+Re> }
    #end
    #if (YTop > 3.95)
      box { <Xc-1.12, Yw2, Zf-0.001>, <Xc-0.08, Yw2+H, Zf+Re> }
      box { <Xc+0.08, Yw2, Zf-0.001>, <Xc+1.12, Yw2+H, Zf+Re> }
    #end
    #if (YTop > 4.8)
      box { <Xc-1.12, Yw3, Zf-0.001>, <Xc-0.08, Yw3+H, Zf+Re> }
      box { <Xc+0.08, Yw3, Zf-0.001>, <Xc+1.12, Yw3+H, Zf+Re> }
    #end
  }

  // door + windows placed into recesses
  DoorSimple(Xc-0.58, Xc+0.58, 0.00, 1.85, Zf+0.19, 0.17)

  #if (YTop > 2.9)
    WindowSet(Xc-1.10, Xc-0.10, 2.05, 2.65, Zf+0.10, 0.12)
    WindowSet(Xc+0.10, Xc+1.10, 2.05, 2.65, Zf+0.10, 0.12)
  #end
  #if (YTop > 3.95)
    WindowSet(Xc-1.10, Xc-0.10, 3.10, 3.70, Zf+0.10, 0.12)
    WindowSet(Xc+0.10, Xc+1.10, 3.10, 3.70, Zf+0.10, 0.12)
  #end
  #if (YTop > 4.8)
    WindowSet(Xc-1.10, Xc-0.10, 4.15, 4.75, Zf+0.10, 0.12)
    WindowSet(Xc+0.10, Xc+1.10, 4.15, 4.75, Zf+0.10, 0.12)
  #end

  // roof trim band (sits on top)
  box {
    <BaseMin.x-0.04, YTop-0.16, BaseMin.z-0.04>,
    <BaseMax.x+0.04, YTop,      BaseMax.z+0.04>
    texture { T_Wood }
  }
}
#end

#macro RoofGable(CenterX, Z1, Z2, YBase, HalfW, Height)
union {
  // main gable prism
  prism {
    linear_sweep
    linear_spline
    Z1, Z2,
    3,
    <-HalfW, YBase>,
    < 0,     YBase+Height>,
    < HalfW, YBase>
    translate <CenterX, 0, 0>
    texture { T_Roof }
  }
  // thin cap ridge for readability
  box {
    <CenterX-0.05, YBase+Height-0.03, Z1>,
    <CenterX+0.05, YBase+Height+0.05, Z2>
    texture { T_Wood }
  }
}
#end

// -------------------- Left street buildings --------------------
union {
  Building(<-6.2, 0,  0>, <-3.4, 4.2,  6>, T_Plaster1)
  RoofGable(-4.8, 0, 6, 4.2, 1.55, 1.15)

  Building(<-6.4, 0,  7>, <-3.6, 5.0, 13>, T_Plaster2)
  RoofGable(-5.0, 7, 13, 5.0, 1.60, 1.30)

  Building(<-6.1, 0, 14>, <-3.3, 4.6, 20>, T_Plaster1)
  RoofGable(-4.7, 14, 20, 4.6, 1.55, 1.22)
}

// -------------------- Right street buildings --------------------
union {
  Building(< 3.4, 0,  1>, < 6.2, 4.8,  7>, T_Plaster2)
  RoofGable(4.8, 1, 7, 4.8, 1.55, 1.22)

  Building(< 3.6, 0,  8>, < 6.4, 4.2, 14>, T_Plaster1)
  RoofGable(5.0, 8, 14, 4.2, 1.60, 1.08)

  Building(< 3.3, 0, 15>, < 6.1, 5.2, 21>, T_Plaster2)
  RoofGable(4.7, 15, 21, 5.2, 1.55, 1.35)
}

// -------------------- Castle / gate --------------------
union {
  // main block + plinth
  box { <-2.2, 0, 22>, <2.2, 3.2, 26> texture { T_StoneBlocks } }
  box { <-2.6, 0, 21.6>, <2.6, 0.35, 26.4> texture { T_StoneBlocks } }

  // corner towers
  union {
    cylinder { <-2.6, 0, 22>, <-2.6, 4.0, 22>, 0.65 texture { T_StoneBlocks } }
    box { <-3.25, 4.0, 21.35>, <-1.95, 4.5, 22.65> texture { T_StoneBlocks } }
  }
  union {
    cylinder { <2.6, 0, 22>, <2.6, 4.0, 22>, 0.65 texture { T_StoneBlocks } }
    box { <1.95, 4.0, 21.35>, <3.25, 4.5, 22.65> texture { T_StoneBlocks } }
  }
  union {
    cylinder { <-2.6, 0, 26>, <-2.6, 4.0, 26>, 0.65 texture { T_StoneBlocks } }
    box { <-3.25, 4.0, 25.35>, <-1.95, 4.5, 26.65> texture { T_StoneBlocks } }
  }
  union {
    cylinder { <2.6, 0, 26>, <2.6, 4.0, 26>, 0.65 texture { T_StoneBlocks } }
    box { <1.95, 4.0, 25.35>, <3.25, 4.5, 26.65> texture { T_StoneBlocks } }
  }

  // gate door inset
  box { <-0.60, 0, 22.02>, <0.60, 1.65, 22.26> texture { T_Door } }

  // crenellations
  union {
    #local i = -4;
    #while (i <= 4)
      box { <i*0.5-0.12, 3.20, 22.05>, <i*0.5+0.12, 3.55, 22.35> texture { T_StoneBlocks } }
      box { <i*0.5-0.12, 3.20, 25.65>, <i*0.5+0.12, 3.55, 25.95> texture { T_StoneBlocks } }
      #local i = i + 1;
    #end
  }

  // arch hint above gate
  box { <-0.85, 1.65, 22.03>, <0.85, 2.05, 22.18> texture { T_StoneBlocks } }
}