// Neat European-style castle in summer (clean lighting, simple shading, fast)

#version 3.7;

global_settings {
  assumed_gamma 1.0
  max_trace_level 6
}

background { color rgb <0.62, 0.86, 1.00> } // clean summer sky

// --- Camera (kept similar; slightly tidied framing) ---
camera {
  location <0, 10.2, -27.5>
  look_at  <0, 5.6,  0.0>
  angle 36
}

// --- Neat summer lighting: warm sun + cool sky fill + soft rim + gentle bounce ---
// Key "sun" (warm, soft shadows)
light_source {
  <55, 75, -55>
  color rgb <1.00, 0.92, 0.78>*1.15
  area_light <10,0,0>, <0,0,10>, 6, 6
  adaptive 1
  jitter
}

// Sky fill (cooler, very soft)
light_source {
  <-40, 45, -10>
  color rgb <0.80, 0.90, 1.00>*0.45
  area_light <14,0,0>, <0,0,14>, 6, 6
  adaptive 1
  jitter
}

// Rim/back light (tiny lift on silhouettes)
light_source {
  <10, 35, 55>
  color rgb <1.00, 0.95, 0.90>*0.18
  area_light <10,0,0>, <0,6,0>, 5, 3
  adaptive 1
  jitter
}

// Big soft "bounce" from ground direction (shadow lift; very subtle)
light_source {
  <0, 8, -10>
  color rgb <1.00, 0.97, 0.92>*0.12
  area_light <30,0,0>, <0,0,30>, 4, 4
  adaptive 1
  jitter
}

// --- Simple shading (no textures) ---
#declare F_Stone = finish { diffuse 0.85 specular 0.10 roughness 0.06 };
#declare F_Roof  = finish { diffuse 0.82 specular 0.10 roughness 0.07 };
#declare F_Wood  = finish { diffuse 0.80 specular 0.06 roughness 0.10 };
#declare F_Grass = finish { diffuse 0.92 specular 0.02 roughness 0.25 };
#declare F_Dirt  = finish { diffuse 0.88 specular 0.02 roughness 0.25 };
#declare F_Floor = finish { diffuse 0.72 specular 0.02 roughness 0.30 };
#declare F_Metal = finish { diffuse 0.55 specular 0.18 roughness 0.06 };

#declare C_Stone = color rgb <0.78, 0.79, 0.77>;  // clean limestone feel
#declare C_Roof  = color rgb <0.55, 0.28, 0.20>;  // clay tile
#declare C_Wood  = color rgb <0.32, 0.20, 0.11>;
#declare C_Grass = color rgb <0.20, 0.62, 0.22>;
#declare C_Dirt  = color rgb <0.55, 0.46, 0.32>;
#declare C_Floor = color rgb <0.22, 0.23, 0.24>;

#declare T_Stone = texture { pigment { C_Stone } finish { F_Stone } }
#declare T_Roof  = texture { pigment { C_Roof  } finish { F_Roof  } }
#declare T_Wood  = texture { pigment { C_Wood  } finish { F_Wood  } }
#declare T_Grass = texture { pigment { C_Grass } finish { F_Grass } }
#declare T_Dirt  = texture { pigment { C_Dirt  } finish { F_Dirt  } }
#declare T_Floor = texture { pigment { C_Floor } finish { F_Floor } }

// --- Ground ---
plane { y, 0 texture { T_Grass } }

// Dirt path strip leading to gate (slightly raised to sit on grass cleanly)
box { <-1.8, 0.001, -28>, <1.8, 0.012, -6.9> texture { T_Dirt } }
// Small widening near the gate
box { <-3.0, 0.001, -8.2>, <3.0, 0.012, -6.7> texture { T_Dirt } }

// --- Castle dimensions (kept for precise fit) ---
#declare BaseY0 = 0.0;
#declare WallH  = 6.0;

// --- Main castle union ---
union {

  // --- Outer curtain wall (hollow box) ---
  difference {
    box { <-9, BaseY0, -7>, < 9, BaseY0+WallH, 7> }
    box { <-8, BaseY0-0.01, -6>, < 8, BaseY0+WallH-0.8, 6> }
    // front gate opening
    box { <-1.4, BaseY0, -7.2>, <1.4, BaseY0+3.2, -5.9> }
    texture { T_Stone }
  }

  // --- Wall crenellations ---
  union {
    #declare Step = 1.6;

    // front edge
    #declare X = -8.2;
    #while (X <= 8.2)
      box { <X, BaseY0+WallH, -7.0>, <X+0.8, BaseY0+WallH+1.0, -6.2> }
      #declare X = X + Step;
    #end

    // back edge
    #declare X2 = -8.2;
    #while (X2 <= 8.2)
      box { <X2, BaseY0+WallH, 6.2>, <X2+0.8, BaseY0+WallH+1.0, 7.0> }
      #declare X2 = X2 + Step;
    #end

    // left edge
    #declare Z = -5.6;
    #while (Z <= 5.6)
      box { <-9.0, BaseY0+WallH, Z>, <-8.2, BaseY0+WallH+1.0, Z+0.8> }
      #declare Z = Z + Step;
    #end

    // right edge
    #declare Z2 = -5.6;
    #while (Z2 <= 5.6)
      box { <8.2, BaseY0+WallH, Z2>, <9.0, BaseY0+WallH+1.0, Z2+0.8> }
      #declare Z2 = Z2 + Step;
    #end

    texture { T_Stone }
  }

  // --- Corner towers ---
  #declare TowerR = 2.1;
  #declare TowerH = 9.0;

  union {
    cylinder { <-9, BaseY0, -7>, <-9, BaseY0+TowerH, -7>, TowerR }
    cylinder { < 9, BaseY0, -7>, < 9, BaseY0+TowerH, -7>, TowerR }
    cylinder { <-9, BaseY0,  7>, <-9, BaseY0+TowerH,  7>, TowerR }
    cylinder { < 9, BaseY0,  7>, < 9, BaseY0+TowerH,  7>, TowerR }
    texture { T_Stone }
  }

  // --- Tower roofs ---
  union {
    cone { <-9, BaseY0+TowerH, -7>, TowerR+0.1, <-9, BaseY0+TowerH+2.4, -7>, 0.2 }
    cone { < 9, BaseY0+TowerH, -7>, TowerR+0.1, < 9, BaseY0+TowerH+2.4, -7>, 0.2 }
    cone { <-9, BaseY0+TowerH,  7>, TowerR+0.1, <-9, BaseY0+TowerH+2.4,  7>, 0.2 }
    cone { < 9, BaseY0+TowerH,  7>, TowerR+0.1, < 9, BaseY0+TowerH+2.4,  7>, 0.2 }
    texture { T_Roof }
  }

  // --- Central keep ---
  #declare KeepW = 7.0;
  #declare KeepD = 5.0;
  #declare KeepH = 10.5;

  difference {
    box { <-KeepW/2, BaseY0, -KeepD/2>, <KeepW/2, BaseY0+KeepH, KeepD/2> }

    // slit windows
    #declare WY0 = BaseY0+3.0;
    #declare WY1 = BaseY0+4.6;

    // front slits
    box { <-2.8, WY0, -KeepD/2-0.2>, <-2.4, WY1, -KeepD/2+0.4> }
    box { < 2.4, WY0, -KeepD/2-0.2>, < 2.8, WY1, -KeepD/2+0.4> }

    // side slits
    box { <-KeepW/2-0.2, WY0, -1.4>, <-KeepW/2+0.4, WY1, -1.0> }
    box { < KeepW/2-0.4, WY0,  1.0>, < KeepW/2+0.2, WY1,  1.4> }

    // higher slit
    #declare WY2 = BaseY0+6.3;
    #declare WY3 = BaseY0+7.9;
    box { <-0.2, WY2, -KeepD/2-0.2>, <0.2, WY3, -KeepD/2+0.4> }

    texture { T_Stone }
  }

  // Keep crenellations
  union {
    #declare S  = 1.2;

    // front
    #declare KX = -KeepW/2;
    #while (KX <= KeepW/2-0.6)
      box { <KX, BaseY0+KeepH, -KeepD/2>, <KX+0.6, BaseY0+KeepH+1.0, -KeepD/2+0.6> }
      #declare KX = KX + S;
    #end

    // back
    #declare KX2 = -KeepW/2;
    #while (KX2 <= KeepW/2-0.6)
      box { <KX2, BaseY0+KeepH, KeepD/2-0.6>, <KX2+0.6, BaseY0+KeepH+1.0, KeepD/2> }
      #declare KX2 = KX2 + S;
    #end

    // left
    #declare KZ = -KeepD/2;
    #while (KZ <= KeepD/2-0.6)
      box { <-KeepW/2, BaseY0+KeepH, KZ>, <-KeepW/2+0.6, BaseY0+KeepH+1.0, KZ+0.6> }
      #declare KZ = KZ + S;
    #end

    // right
    #declare KZ2 = -KeepD/2;
    #while (KZ2 <= KeepD/2-0.6)
      box { <KeepW/2-0.6, BaseY0+KeepH, KZ2>, <KeepW/2, BaseY0+KeepH+1.0, KZ2+0.6> }
      #declare KZ2 = KZ2 + S;
    #end

    texture { T_Stone }
  }

  // --- Gatehouse block with wooden door inset ---
  union {
    difference {
      box { <-3.2, BaseY0, -8.6>, <3.2, BaseY0+5.0, -6.2> }
      // door recess
      box { <-1.2, BaseY0, -8.7>, <1.2, BaseY0+3.0, -7.6> }
      texture { T_Stone }
    }

    // wooden door slab
    box { <-1.15, BaseY0, -7.65>, <1.15, BaseY0+2.95, -7.62> texture { T_Wood } }

    // small gatehouse crenels
    #declare GX = -3.0;
    #while (GX <= 2.4)
      box { <GX, BaseY0+5.0, -8.6>, <GX+0.6, BaseY0+5.8, -7.9> }
      #declare GX = GX + 1.2;
    #end

    texture { T_Stone }
  }

  // --- Courtyard floor hint ---
  box { <-7.7, BaseY0+0.02, -5.7>, <7.7, BaseY0+0.04, 5.7> texture { T_Floor } }

  // --- Simple banner on the keep ---
  union {
    // pole
    cylinder {
      <0, BaseY0+KeepH-0.4, -KeepD/2-0.05>, <0, BaseY0+KeepH+2.0, -KeepD/2-0.05>, 0.06
      texture { pigment { color rgb <0.25,0.25,0.26> } finish { F_Metal } }
    }
    // cloth
    box {
      <0.05, BaseY0+KeepH+1.1, -KeepD/2-0.04>, <1.85, BaseY0+KeepH+1.85, -KeepD/2-0.03>
      texture {
        pigment {
          gradient x
          color_map {
            [0.00 color rgb <0.78,0.12,0.12>]
            [0.50 color rgb <0.78,0.12,0.12>]
            [0.50 color rgb <0.98,0.93,0.72>]
            [1.00 color rgb <0.98,0.93,0.72>]
          }
          scale 1.8
        }
        finish { diffuse 0.90 specular 0.06 roughness 0.10 }
      }
    }
  }

  translate <0, 0.001, 0>
}

// --- Simple shrubs (clean, fast) ---
#declare T_Shrub =
texture {
  pigment { color rgb <0.12, 0.36, 0.14> }
  finish  { diffuse 0.88 specular 0.02 roughness 0.25 }
}

union {
  sphere { <-6.8, 0.55, -10.0>, 0.65 texture { T_Shrub } }
  sphere { <-7.6, 0.45, -9.2>,  0.55 texture { T_Shrub } }
  sphere { < 6.7, 0.55, -10.3>, 0.65 texture { T_Shrub } }
  sphere { < 7.5, 0.45, -9.4>,  0.55 texture { T_Shrub } }
}

// --- Very subtle summer atmosphere (cleaner than before) ---
fog {
  distance 220
  color rgb <0.62, 0.86, 1.00>
  fog_type 2
  fog_offset 0.0
  fog_alt 35
  turbulence 0.0
}