refactor: biome build (#5)

* refactor: rename Biome to BiomeType

* feat: add biome builder

CMakeLists.txt

@@ -111,6 +111,12 @@ add_executable(${PROJECT_NAME}
     src/tools/perlin_noise.cpp
     src/ui/text.cpp
     src/window.cpp
+    src/gameplay/builders/biome_builder.cpp
+    src/gameplay/builders/plain_builder.cpp
+    src/gameplay/builders/mountain_builder.cpp
+    src/gameplay/builders/river_builder.cpp
+    src/gameplay/builders/desert_builder.cpp
+    src/gameplay/builders/forest_builder.cpp
 )
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")

include/Cubed/constants.hpp

@@ -22,6 +22,9 @@ constexpr float DEFAULT_MAX_RUN_SPEED = 7.0f;
 constexpr float DEFAULT_ACCELERATION = 10.0f;
 constexpr float DEFAULT_DECELERATION = 15.0f;
 constexpr float DEFAULT_G = 22.5f;
+static constexpr int SIZE_X = CHUCK_SIZE;
+static constexpr int SIZE_Y = WORLD_SIZE_Y;
+static constexpr int SIZE_Z = CHUCK_SIZE;
 
 using HeightMapArray = std::array<std::array<float, CHUCK_SIZE>, CHUCK_SIZE>;
 

include/Cubed/gameplay/biome.hpp

@@ -7,12 +7,7 @@ namespace Cubed {
 
 constexpr float BIOME_NOISE_FREQUENCY = 0.03f;
 
-constexpr float PLAIN_FREQ = 0.4f;
-constexpr float FOREST_FREQ = 1.2f;
-constexpr float DESERT_FREQ = 1.2f;
-constexpr float MOUNTAIN_FREQ = 2.0f;
-
-enum class Biome { PLAIN = 0, FOREST, DESERT, MOUNTAIN, RIVER, NONE };
+enum class BiomeType { PLAIN = 0, FOREST, DESERT, MOUNTAIN, RIVER, NONE };
 
 struct BiomeHeightRange {
     int base_y;
@@ -20,19 +15,23 @@ struct BiomeHeightRange {
 };
 
 struct BiomeNonAdjacent {
-    Biome first;
-    std::vector<Biome> second;
-    Biome replace;
+    BiomeType first;
+    std::vector<BiomeType> second;
+    BiomeType replace;
 };
 
 static inline const std::vector<BiomeNonAdjacent> NON_ADJACENT{
-    {{Biome::PLAIN, {Biome::DESERT}, Biome::RIVER},
-     {Biome::FOREST, {Biome::DESERT}, Biome::RIVER},
-     {Biome::DESERT, {Biome::MOUNTAIN, Biome::FOREST}, Biome::RIVER},
-     {Biome::MOUNTAIN, {Biome::DESERT, Biome::FOREST}, Biome::RIVER}}};
+    {{BiomeType::PLAIN, {BiomeType::DESERT}, BiomeType::RIVER},
+     {BiomeType::FOREST, {BiomeType::DESERT}, BiomeType::RIVER},
+     {BiomeType::DESERT,
+      {BiomeType::MOUNTAIN, BiomeType::FOREST},
+      BiomeType::RIVER},
+     {BiomeType::MOUNTAIN,
+      {BiomeType::DESERT, BiomeType::FOREST},
+      BiomeType::RIVER}}};
 
 struct BaseBiomeParams {
-    Biome biome;
+    BiomeType biome;
     std::pair<float, float> temp;
     std::pair<float, float> humid;
     std::array<float, 3> frequencies;
@@ -51,11 +50,11 @@ struct MountainParams : public BaseBiomeParams {};
 
 struct RiverParams : public BaseBiomeParams {};
 
-std::string get_biome_str(Biome biome);
-Biome get_biome_from_noise(float temp, float humid);
-std::array<float, 3> get_noise_frequencies_for_biome(Biome biome);
-BiomeHeightRange get_biome_height_range(Biome biome);
-Biome safe_int_to_biome(int x);
+std::string get_biome_str(BiomeType biome);
+BiomeType get_biome_from_noise(float temp, float humid);
+std::array<float, 3> get_noise_frequencies_for_biome(BiomeType biome);
+BiomeHeightRange get_biome_height_range(BiomeType biome);
+BiomeType safe_int_to_biome(int x);
 int get_interpolated_height(float world_x, float world_z, float temp,
                             float humid);
 
@@ -64,4 +63,5 @@ ForestParams& forest_params();
 DesertParams& desert_params();
 MountainParams& mountain_params();
 RiverParams& river_params();
+
 } // namespace Cubed

include/Cubed/gameplay/builders/biome_builder.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+namespace Cubed {
+class ChunkGenerator;
+class BiomeBuilder {
+public:
+    BiomeBuilder() = default;
+    virtual ~BiomeBuilder() = default;
+    virtual ChunkGenerator& get_chunk_generator() = 0;
+    virtual void build_biome() = 0;
+    virtual void build_vegetation() = 0;
+
+protected:
+    void build_bottom();
+};
+} // namespace Cubed

include/Cubed/gameplay/builders/desert_builder.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+namespace Cubed {
+
+class ChunkGenerator;
+
+class DesertBuilder : public BiomeBuilder {
+public:
+    DesertBuilder(ChunkGenerator& chunk_generator);
+    void build_biome() override;
+    ChunkGenerator& get_chunk_generator() override;
+    void build_vegetation() override;
+
+private:
+    ChunkGenerator& m_chunk_generator;
+
+    void build_blocks();
+};
+
+} // namespace Cubed

include/Cubed/gameplay/builders/forest_builder.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+namespace Cubed {
+
+class ChunkGenerator;
+
+class ForestBuilder : public BiomeBuilder {
+public:
+    ForestBuilder(ChunkGenerator& chunk_generator);
+    void build_biome() override;
+    ChunkGenerator& get_chunk_generator() override;
+    void build_vegetation() override;
+
+private:
+    ChunkGenerator& m_chunk_generator;
+
+    void build_blocks();
+};
+
+} // namespace Cubed

include/Cubed/gameplay/builders/mountain_builder.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+namespace Cubed {
+
+class ChunkGenerator;
+
+class MountainBuilder : public BiomeBuilder {
+public:
+    MountainBuilder(ChunkGenerator& chunk_generator);
+    void build_biome() override;
+    ChunkGenerator& get_chunk_generator() override;
+    void build_vegetation() override;
+
+private:
+    ChunkGenerator& m_chunk_generator;
+
+    void build_blocks();
+};
+
+} // namespace Cubed

include/Cubed/gameplay/builders/plain_builder.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+namespace Cubed {
+
+class ChunkGenerator;
+
+class PlainBuilder : public BiomeBuilder {
+public:
+    PlainBuilder(ChunkGenerator& chunk_generator);
+    void build_biome() override;
+    ChunkGenerator& get_chunk_generator() override;
+    void build_vegetation() override;
+
+private:
+    ChunkGenerator& m_chunk_generator;
+
+    void build_blocks();
+};
+
+} // namespace Cubed

include/Cubed/gameplay/builders/river_builder.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+namespace Cubed {
+
+class ChunkGenerator;
+
+class RiverBuilder : public BiomeBuilder {
+public:
+    RiverBuilder(ChunkGenerator& chunk_generator);
+    void build_biome() override;
+    ChunkGenerator& get_chunk_generator() override;
+    void build_vegetation() override;
+
+private:
+    ChunkGenerator& m_chunk_generator;
+
+    void build_blocks();
+};
+
+} // namespace Cubed

include/Cubed/gameplay/chunk.hpp

@@ -24,7 +24,7 @@ private:
     std::atomic<bool> m_need_upload{true};
     std::atomic<bool> m_is_on_gen_vertex_data{false};
     std::atomic<size_t> m_vertex_sum = 0;
-    std::atomic<Biome> m_biome = Biome::PLAIN;
+    std::atomic<BiomeType> m_biome = BiomeType::PLAIN;
     std::mutex m_vertexs_data_mutex;
 
     std::unique_ptr<ChunkGenerator> m_generator;
@@ -50,7 +50,7 @@ public:
     Chunk(Chunk&&) noexcept;
     Chunk& operator=(Chunk&&) noexcept;
 
-    Biome get_biome() const;
+    BiomeType get_biome() const;
     ChunkPos get_chunk_pos() const;
     const std::vector<uint8_t>& get_chunk_blocks() const;
     HeightMapArray get_heightmap() const;
@@ -94,8 +94,8 @@ public:
     void set_chunk_block(int index, unsigned id);
 
     ChunkPos chunk_pos() const;
-    Biome biome() const;
-    void biome(Biome b);
+    BiomeType biome() const;
+    void biome(BiomeType b);
     HeightMapArray& heightmap();
     std::vector<uint8_t>& blocks();
 };

include/Cubed/gameplay/chunk_generator.hpp

@@ -2,21 +2,17 @@
 
 #include "Cubed/constants.hpp"
 #include "Cubed/gameplay/biome.hpp"
+#include "Cubed/gameplay/builders/biome_builder.hpp"
 #include "Cubed/tools/cubed_random.hpp"
 
 #include <atomic>
+#include <memory>
 #include <optional>
 namespace Cubed {
 
 class Chunk;
 
 class ChunkGenerator {
-    static constexpr int SIZE_X = CHUCK_SIZE;
-    static constexpr int SIZE_Y = WORLD_SIZE_Y;
-    static constexpr int SIZE_Z = CHUCK_SIZE;
-    using HeightMapArray =
-        std::array<std::array<float, CHUCK_SIZE>, CHUCK_SIZE>;
-
 public:
     ChunkGenerator(Chunk& chunk);
 
@@ -44,15 +40,22 @@ public:
     // Generate Structure
     void generate_vegetation();
 
+    Chunk& chunk();
+    Random& random();
+    bool neighbor_river() const;
+
 private:
     static inline std::atomic<bool> is_init{false};
     static inline unsigned m_generator_seed{0};
     static inline std::atomic<bool> is_seed_change{false};
     Chunk& m_chunk;
     Random m_random;
-    std::array<Biome, 4> neighbor_biome{Biome::NONE, Biome::NONE, Biome::NONE,
-                                        Biome::NONE};
+    std::array<BiomeType, 4> neighbor_biome{BiomeType::NONE, BiomeType::NONE,
+                                            BiomeType::NONE, BiomeType::NONE};
+    std::unique_ptr<BiomeBuilder> m_biome_builder{nullptr};
     bool is_neighbor_river = false;
+
+    void make_biome_builder();
 };
 
 } // namespace Cubed

src/gameplay/biome.cpp

@@ -2,20 +2,18 @@
 
 #include "Cubed/tools/cubed_assert.hpp"
 #include "Cubed/tools/log.hpp"
-#include "Cubed/tools/perlin_noise.hpp"
 
-#include <cmath>
 #include <unordered_map>
 
 namespace Cubed {
 
-static PlainParams plain{{Biome::PLAIN,
+static PlainParams plain{{BiomeType::PLAIN,
                           {0.0f, 0.5f},
                           {0.0f, 0.5f},
                           {0.003f, 0.010f, 0.020f},
                           {62, 8}}};
 
-static ForestParams forest{{Biome::FOREST,
+static ForestParams forest{{BiomeType::FOREST,
                             {0.5f, 1.0f},
                             {0.5f, 1.0f},
                             {0.004f, 0.010f, 0.020f},
@@ -24,27 +22,27 @@ static ForestParams forest{{Biome::FOREST,
 
 };
 
-static DesertParams desert{{Biome::DESERT,
+static DesertParams desert{{BiomeType::DESERT,
                             {0.5f, 1.0f},
                             {0.0f, 0.5f},
                             {0.003f, 0.010f, 0.020f},
                             {61, 12}}};
 
-static MountainParams mountain{{Biome::MOUNTAIN,
+static MountainParams mountain{{BiomeType::MOUNTAIN,
                                 {0.0f, 0.5f},
                                 {0.5f, 1.0f},
                                 {0.006f, 0.014f, 0.010f},
                                 {70, 70}}};
 
-static RiverParams river{{Biome::RIVER,
+static RiverParams river{{BiomeType::RIVER,
                           {-0.1f, -0.1f},
                           {-0.1f, -0.1f},
                           {0.003f, 0.010f, 0.020f},
                           {50, 6}}};
 
-std::string get_biome_str(Biome biome) {
+std::string get_biome_str(BiomeType biome) {
     std::string str;
-    using enum Biome;
+    using enum BiomeType;
     switch (biome) {
     case PLAIN:
         str = "Plain";
@@ -86,8 +84,8 @@ Biome get_biome_from_noise(float temp, float humid) {
     return Biome::FOREST;
 }
 */
-Biome get_biome_from_noise(float temp, float humid) {
-    using enum Biome;
+BiomeType get_biome_from_noise(float temp, float humid) {
+    using enum BiomeType;
     if (plain.temp.first <= temp && temp < plain.temp.second &&
         plain.humid.first <= humid && humid < plain.humid.second) {
         return PLAIN;
@@ -107,8 +105,8 @@ Biome get_biome_from_noise(float temp, float humid) {
     Logger::warn("Invail Temp {} or Humid {}", temp, humid);
     return PLAIN;
 }
-std::array<float, 3> get_noise_frequencies_for_biome(Biome biome) {
-    using enum Biome;
+std::array<float, 3> get_noise_frequencies_for_biome(BiomeType biome) {
+    using enum BiomeType;
     switch (biome) {
     case PLAIN:
         return plain.frequencies;
@@ -128,8 +126,8 @@ std::array<float, 3> get_noise_frequencies_for_biome(Biome biome) {
     return {0.003f, 0.015f, 0.06f};
 }
 
-BiomeHeightRange get_biome_height_range(Biome biome) {
-    using enum Biome;
+BiomeHeightRange get_biome_height_range(BiomeType biome) {
+    using enum BiomeType;
     switch (biome) {
     case PLAIN:
         return plain.height_range;
@@ -149,16 +147,16 @@ BiomeHeightRange get_biome_height_range(Biome biome) {
     return {62, 4};
 }
 
-Biome safe_int_to_biome(int x) {
-    using enum Biome;
-    static const std::unordered_map<int, Biome> INT_TO_BIOME_MAP{
+BiomeType safe_int_to_biome(int x) {
+    using enum BiomeType;
+    static const std::unordered_map<int, BiomeType> INT_TO_BIOME_MAP{
         {0, PLAIN}, {1, FOREST}, {2, DESERT}, {3, MOUNTAIN}, {4, RIVER}};
 
     auto it = INT_TO_BIOME_MAP.find(x);
     ASSERT_MSG(it != INT_TO_BIOME_MAP.end(), ":Can't Find");
     return it->second;
 }
-
+/*
 int get_interpolated_height(float world_x, float world_z, float temp,
                             float humid) {
 
@@ -186,7 +184,7 @@ int get_interpolated_height(float world_x, float world_z, float temp,
     w_desert /= total;
     w_forest /= total;
 
-    auto sample_height = [&](Biome b) -> float {
+    auto sample_height = [&](BiomeType b) -> float {
         auto range = get_biome_height_range(b);
         auto [f1, f2, f3] = get_noise_frequencies_for_biome(b);
         float n = 1.00f * PerlinNoise::noise(world_x * f1, 0.5f, world_z * f1) +
@@ -196,13 +194,13 @@ int get_interpolated_height(float world_x, float world_z, float temp,
         return range.base_y + n * range.amplitude;
     };
 
-    float h = w_mountain * sample_height(Biome::MOUNTAIN) +
-              w_plain * sample_height(Biome::PLAIN) +
-              w_desert * sample_height(Biome::DESERT) +
-              w_forest * sample_height(Biome::FOREST);
+    float h = w_mountain * sample_height(BiomeType::MOUNTAIN) +
+              w_plain * sample_height(BiomeType::PLAIN) +
+              w_desert * sample_height(BiomeType::DESERT) +
+              w_forest * sample_height(BiomeType::FOREST);
     return static_cast<int>(h);
 }
-
+*/
 PlainParams& plain_params() { return plain; }
 ForestParams& forest_params() { return forest; }
 DesertParams& desert_params() { return desert; }

src/gameplay/builders/biome_builder.cpp

@@ -0,0 +1,18 @@
+#include "Cubed/gameplay/builders/biome_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+namespace Cubed {
+void BiomeBuilder::build_bottom() {
+    ChunkGenerator& chunk_generator = get_chunk_generator();
+    Chunk& chunk = chunk_generator.chunk();
+    auto& m_blocks = chunk.blocks();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int y = 0; y < 5; y++) {
+            for (int z = 0; z < CHUCK_SIZE; z++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+        }
+    }
+}
+} // namespace Cubed

src/gameplay/builders/desert_builder.cpp

@@ -0,0 +1,55 @@
+#include "Cubed/gameplay/builders/desert_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+namespace Cubed {
+DesertBuilder::DesertBuilder(ChunkGenerator& chunk_generator)
+    : m_chunk_generator(chunk_generator) {}
+
+void DesertBuilder::build_biome() {
+    BiomeBuilder::build_bottom();
+    build_blocks();
+};
+
+void DesertBuilder::build_blocks() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int z = 0; z < CHUCK_SIZE; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            for (int y = 5; y < height - 5; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+
+            for (int y = height - 5; y <= height; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 4;
+            }
+        }
+    }
+}
+
+void DesertBuilder::build_vegetation() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    if (m_chunk_generator.neighbor_river()) {
+        for (int x = 0; x < SIZE_X; x++) {
+            for (int z = 0; z < SIZE_Z; z++) {
+                int height = static_cast<int>(m_heightmap[x][z]);
+                if (height >= SEA_LEVEL) {
+                    continue;
+                }
+                for (int y = height + 1; y < SEA_LEVEL; y++) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 7;
+                }
+            }
+        }
+    }
+}
+
+ChunkGenerator& DesertBuilder::get_chunk_generator() {
+    return m_chunk_generator;
+};
+
+} // namespace Cubed

src/gameplay/builders/forest_builder.cpp

@@ -0,0 +1,72 @@
+#include "Cubed/gameplay/builders/forest_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+#include "Cubed/gameplay/tree.hpp"
+namespace Cubed {
+ForestBuilder::ForestBuilder(ChunkGenerator& chunk_generator)
+    : m_chunk_generator(chunk_generator) {}
+
+void ForestBuilder::build_biome() {
+    BiomeBuilder::build_bottom();
+    build_blocks();
+};
+
+void ForestBuilder::build_blocks() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int z = 0; z < CHUCK_SIZE; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            for (int y = 5; y < height - 5; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+            for (int y = height - 5; y < height; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 2;
+            }
+            m_blocks[Chunk::get_index(x, height, z)] = 1;
+        }
+    }
+}
+
+void ForestBuilder::build_vegetation() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_heightmap = m_chunk.heightmap();
+    auto& m_random = m_chunk_generator.random();
+    std::array<int, SIZE_X> x_arr;
+    std::iota(x_arr.begin(), x_arr.end(), 0);
+    std::shuffle(x_arr.begin(), x_arr.end(), m_random.engine());
+    std::array<int, SIZE_Z> z_arr;
+    std::iota(z_arr.begin(), z_arr.end(), 0);
+    std::shuffle(z_arr.begin(), z_arr.end(), m_random.engine());
+    for (auto x : x_arr) {
+        for (auto z : z_arr) {
+            int y = static_cast<int>(m_heightmap[x][z]);
+            if (m_random.random_bool(forest_params().tree_frequency) &&
+                y >= SEA_LEVEL) {
+                build_tree(m_chunk, {x, y, z});
+            }
+        }
+    }
+    auto& m_blocks = m_chunk.blocks();
+    if (m_chunk_generator.neighbor_river()) {
+        for (int x = 0; x < SIZE_X; x++) {
+            for (int z = 0; z < SIZE_Z; z++) {
+                int height = static_cast<int>(m_heightmap[x][z]);
+                if (height >= SEA_LEVEL) {
+                    continue;
+                }
+                for (int y = height + 1; y < SEA_LEVEL; y++) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 7;
+                }
+            }
+        }
+    }
+}
+
+ChunkGenerator& ForestBuilder::get_chunk_generator() {
+    return m_chunk_generator;
+};
+
+} // namespace Cubed

src/gameplay/builders/mountain_builder.cpp

@@ -0,0 +1,63 @@
+#include "Cubed/gameplay/builders/mountain_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+namespace Cubed {
+MountainBuilder::MountainBuilder(ChunkGenerator& chunk_generator)
+    : m_chunk_generator(chunk_generator) {}
+
+void MountainBuilder::build_biome() {
+    BiomeBuilder::build_bottom();
+    build_blocks();
+};
+
+void MountainBuilder::build_blocks() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int z = 0; z < CHUCK_SIZE; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            for (int y = 5; y < height - 5; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+            for (int y = height - 5; y <= height - 1; y++) {
+                if (y > 110) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 3;
+                } else {
+                    m_blocks[Chunk::get_index(x, y, z)] = 2;
+                }
+            }
+            if (height > 110) {
+                m_blocks[Chunk::get_index(x, height - 1, z)] = 3;
+            } else {
+                m_blocks[Chunk::get_index(x, height - 1, z)] = 1;
+            }
+        }
+    }
+}
+
+void MountainBuilder::build_vegetation() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    if (m_chunk_generator.neighbor_river()) {
+        for (int x = 0; x < SIZE_X; x++) {
+            for (int z = 0; z < SIZE_Z; z++) {
+                int height = static_cast<int>(m_heightmap[x][z]);
+                if (height >= SEA_LEVEL) {
+                    continue;
+                }
+                for (int y = height + 1; y < SEA_LEVEL; y++) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 7;
+                }
+            }
+        }
+    }
+}
+
+ChunkGenerator& MountainBuilder::get_chunk_generator() {
+    return m_chunk_generator;
+};
+
+} // namespace Cubed

src/gameplay/builders/plain_builder.cpp

@@ -0,0 +1,55 @@
+#include "Cubed/gameplay/builders/plain_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+namespace Cubed {
+PlainBuilder::PlainBuilder(ChunkGenerator& chunk_generator)
+    : m_chunk_generator(chunk_generator) {}
+
+void PlainBuilder::build_biome() {
+    BiomeBuilder::build_bottom();
+    build_blocks();
+};
+
+void PlainBuilder::build_blocks() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int z = 0; z < CHUCK_SIZE; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            for (int y = 5; y < height - 5; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+            for (int y = height - 5; y < height; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 2;
+            }
+            m_blocks[Chunk::get_index(x, height, z)] = 1;
+        }
+    }
+}
+
+void PlainBuilder::build_vegetation() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    if (m_chunk_generator.neighbor_river()) {
+        for (int x = 0; x < SIZE_X; x++) {
+            for (int z = 0; z < SIZE_Z; z++) {
+                int height = static_cast<int>(m_heightmap[x][z]);
+                if (height >= SEA_LEVEL) {
+                    continue;
+                }
+                for (int y = height + 1; y < SEA_LEVEL; y++) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 7;
+                }
+            }
+        }
+    }
+}
+
+ChunkGenerator& PlainBuilder::get_chunk_generator() {
+    return m_chunk_generator;
+};
+
+} // namespace Cubed

src/gameplay/builders/river_builder.cpp

@@ -0,0 +1,59 @@
+#include "Cubed/gameplay/builders/river_builder.hpp"
+
+#include "Cubed/gameplay/chunk.hpp"
+#include "Cubed/gameplay/chunk_generator.hpp"
+namespace Cubed {
+RiverBuilder::RiverBuilder(ChunkGenerator& chunk_generator)
+    : m_chunk_generator(chunk_generator) {}
+
+void RiverBuilder::build_biome() {
+    BiomeBuilder::build_bottom();
+    build_blocks();
+};
+
+void RiverBuilder::build_blocks() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < CHUCK_SIZE; x++) {
+        for (int z = 0; z < CHUCK_SIZE; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            for (int y = 5; y < height - 5; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 3;
+            }
+            for (int y = height - 5; y <= height - 1; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 2;
+            }
+            for (int y = height; y <= height; y++) {
+                if (y >= SEA_LEVEL - 1) {
+                    m_blocks[Chunk::get_index(x, y, z)] = 1;
+                } else {
+                    m_blocks[Chunk::get_index(x, y, z)] = 2;
+                }
+            }
+        }
+    }
+}
+
+void RiverBuilder::build_vegetation() {
+    auto& m_chunk = m_chunk_generator.chunk();
+    auto& m_blocks = m_chunk.blocks();
+    auto& m_heightmap = m_chunk.heightmap();
+    for (int x = 0; x < SIZE_X; x++) {
+        for (int z = 0; z < SIZE_Z; z++) {
+            int height = static_cast<int>(m_heightmap[x][z]);
+            if (height >= SEA_LEVEL) {
+                continue;
+            }
+            for (int y = height + 1; y < SEA_LEVEL; y++) {
+                m_blocks[Chunk::get_index(x, y, z)] = 7;
+            }
+        }
+    }
+}
+
+ChunkGenerator& RiverBuilder::get_chunk_generator() {
+    return m_chunk_generator;
+};
+
+} // namespace Cubed

src/gameplay/chunk.cpp

@@ -46,7 +46,7 @@ Chunk& Chunk::operator=(Chunk&& other) noexcept {
     return *this;
 }
 
-Biome Chunk::get_biome() const { return m_biome.load(); }
+BiomeType Chunk::get_biome() const { return m_biome.load(); }
 
 ChunkPos Chunk::get_chunk_pos() const { return m_chunk_pos; }
 
@@ -300,9 +300,9 @@ void Chunk::set_chunk_block(int index, unsigned id) {
 
 ChunkPos Chunk::chunk_pos() const { return m_chunk_pos; }
 
-Biome Chunk::biome() const { return m_biome; }
+BiomeType Chunk::biome() const { return m_biome; }
 
-void Chunk::biome(Biome b) { m_biome = b; }
+void Chunk::biome(BiomeType b) { m_biome = b; }
 
 HeightMapArray& Chunk::heightmap() { return m_heightmap; }
 std::vector<uint8_t>& Chunk::blocks() { return m_blocks; }

src/gameplay/chunk_generator.cpp

@@ -1,12 +1,19 @@
 #include "Cubed/gameplay/chunk_generator.hpp"
 
+#include "Cubed/gameplay/builders/desert_builder.hpp"
+#include "Cubed/gameplay/builders/forest_builder.hpp"
+#include "Cubed/gameplay/builders/mountain_builder.hpp"
+#include "Cubed/gameplay/builders/plain_builder.hpp"
+#include "Cubed/gameplay/builders/river_builder.hpp"
 #include "Cubed/gameplay/chunk.hpp"
 #include "Cubed/gameplay/tree.hpp"
 #include "Cubed/tools/cubed_hash.hpp"
 #include "Cubed/tools/perlin_noise.hpp"
 
-#include <numeric>
 namespace Cubed {
+
+using enum BiomeType;
+
 constexpr int BLEND_RADIUS = 12;
 ChunkGenerator::ChunkGenerator(Chunk& chunk) : m_chunk(chunk) {
     ASSERT_MSG(is_init, "ChunksGenerator is not init");
@@ -57,9 +64,9 @@ void ChunkGenerator::resolve_biome_adjacency_conflict(
         if (chunk == nullptr) {
             continue;
         }
-        Biome biome = chunk->get_biome();
+        BiomeType biome = chunk->get_biome();
         neighbor_biome[i] = biome;
-        if (biome == Biome::RIVER) {
+        if (biome == BiomeType::RIVER) {
             is_neighbor_river = true;
         }
         for (const auto& non : NON_ADJACENT) {
@@ -89,7 +96,7 @@ void ChunkGenerator::generate_heightmap() {
             float world_x = static_cast<float>(x + m_chunk_pos.x * CHUCK_SIZE);
             float world_z = static_cast<float>(z + m_chunk_pos.z * CHUCK_SIZE);
 
-            auto sample_height = [&](Biome b) -> float {
+            auto sample_height = [&](BiomeType b) -> float {
                 auto range = get_biome_height_range(b);
                 auto [f1, f2, f3] = get_noise_frequencies_for_biome(b);
                 float n = 1.00f * PerlinNoise::noise(world_x * f1, 0.5f,
@@ -185,63 +192,13 @@ void ChunkGenerator::blend_heightmap_boundaries(
 }
 
 void ChunkGenerator::generate_terrain_blocks() {
-    auto& m_blocks = m_chunk.blocks();
-    auto& m_heightmap = m_chunk.heightmap();
-    auto m_biome = m_chunk.biome();
-    // bottom
-    m_blocks.assign(CHUCK_SIZE * CHUCK_SIZE * WORLD_SIZE_Y, 0);
-    for (int x = 0; x < CHUCK_SIZE; x++) {
-        for (int y = 0; y < 5; y++) {
-            for (int z = 0; z < CHUCK_SIZE; z++) {
-                m_blocks[Chunk::get_index(x, y, z)] = 3;
-            }
-        }
-    }
-
-    for (int x = 0; x < CHUCK_SIZE; x++) {
-        for (int z = 0; z < CHUCK_SIZE; z++) {
-            int height = static_cast<int>(m_heightmap[x][z]);
-            for (int y = 5; y < height - 5; y++) {
-                m_blocks[Chunk::get_index(x, y, z)] = 3;
-            }
-            if (m_biome == Biome::MOUNTAIN) {
-                for (int y = height - 5; y <= height - 1; y++) {
-                    if (y > 110) {
-                        m_blocks[Chunk::get_index(x, y, z)] = 3;
-                    } else {
-                        m_blocks[Chunk::get_index(x, y, z)] = 2;
-                    }
-                }
-                if (height > 110) {
-                    m_blocks[Chunk::get_index(x, height - 1, z)] = 3;
-                } else {
-                    m_blocks[Chunk::get_index(x, height - 1, z)] = 1;
-                }
-            } else if (m_biome == Biome::DESERT) {
-                for (int y = height - 5; y <= height; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 4;
-                }
-            } else if (m_biome == Biome::RIVER) {
-                for (int y = height - 5; y <= height - 1; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 2;
-                }
-                for (int y = height; y <= height; y++) {
-                    if (y >= SEA_LEVEL - 1) {
-                        m_blocks[Chunk::get_index(x, y, z)] = 1;
-                    } else {
-                        m_blocks[Chunk::get_index(x, y, z)] = 2;
-                    }
-                }
-            } else {
-                for (int y = height - 5; y <= height - 1; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 2;
-                }
-                for (int y = height; y <= height; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 1;
-                }
-            }
-        }
+    make_biome_builder();
+    if (!m_biome_builder) {
+        Logger::error("BiomeBuilder is nullptr");
+        return;
     }
+    m_chunk.blocks().assign(CHUCK_SIZE * CHUCK_SIZE * WORLD_SIZE_Y, 0);
+    m_biome_builder->build_biome();
 }
 
 void ChunkGenerator::blend_surface_blocks_borders(
@@ -344,7 +301,7 @@ void ChunkGenerator::blend_surface_blocks_borders(
             // Update the top block if the type changed
             if (final_type != type_self) {
                 // top block
-                if (m_chunk.biome() == Biome::RIVER && final_type == 1) {
+                if (m_chunk.biome() == BiomeType::RIVER && final_type == 1) {
                     final_type = 2;
                 }
                 if (is_neighbor_river && final_type == 1) {
@@ -371,52 +328,41 @@ void ChunkGenerator::blend_surface_blocks_borders(
 }
 
 void ChunkGenerator::generate_vegetation() {
-    auto m_biome = m_chunk.biome();
-    auto& m_blocks = m_chunk.blocks();
-    auto& m_heightmap = m_chunk.heightmap();
-    if (m_biome == Biome::FOREST) {
-        std::array<int, SIZE_X> x_arr;
-        std::iota(x_arr.begin(), x_arr.end(), 0);
-        std::shuffle(x_arr.begin(), x_arr.end(), m_random.engine());
-        std::array<int, SIZE_Z> z_arr;
-        std::iota(z_arr.begin(), z_arr.end(), 0);
-        std::shuffle(z_arr.begin(), z_arr.end(), m_random.engine());
-        for (auto x : x_arr) {
-            for (auto z : z_arr) {
-                int y = static_cast<int>(m_heightmap[x][z]);
-                if (m_random.random_bool(forest_params().tree_frequency) &&
-                    y >= SEA_LEVEL) {
-                    build_tree(m_chunk, {x, y, z});
-                }
-            }
-        }
-    }
-    if (m_biome == Biome::RIVER) {
-        for (int x = 0; x < SIZE_X; x++) {
-            for (int z = 0; z < SIZE_Z; z++) {
-                int height = static_cast<int>(m_heightmap[x][z]);
-                if (height >= SEA_LEVEL) {
-                    continue;
-                }
-                for (int y = height + 1; y < SEA_LEVEL; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 7;
-                }
-            }
-        }
-    }
-    if (is_neighbor_river) {
-        for (int x = 0; x < SIZE_X; x++) {
-            for (int z = 0; z < SIZE_Z; z++) {
-                int height = static_cast<int>(m_heightmap[x][z]);
-                if (height >= SEA_LEVEL) {
-                    continue;
-                }
-                for (int y = height + 1; y < SEA_LEVEL; y++) {
-                    m_blocks[Chunk::get_index(x, y, z)] = 7;
-                }
+
+    if (!m_biome_builder) {
+        Logger::error("BiomeBuilder is nullptr");
+        return;
     }
+    m_biome_builder->build_vegetation();
 }
+
+void ChunkGenerator::make_biome_builder() {
+    auto biome = m_chunk.biome();
+    switch (biome) {
+    case PLAIN:
+        m_biome_builder = std::make_unique<PlainBuilder>(*this);
+        break;
+    case DESERT:
+        m_biome_builder = std::make_unique<DesertBuilder>(*this);
+        break;
+    case FOREST:
+        m_biome_builder = std::make_unique<ForestBuilder>(*this);
+        break;
+    case MOUNTAIN:
+        m_biome_builder = std::make_unique<MountainBuilder>(*this);
+        break;
+    case RIVER:
+        m_biome_builder = std::make_unique<RiverBuilder>(*this);
+        break;
+    case NONE:
+        m_biome_builder = nullptr;
+        break;
     }
 }
 
+Chunk& ChunkGenerator::chunk() { return m_chunk; }
+
+Random& ChunkGenerator::random() { return m_random; }
+bool ChunkGenerator::neighbor_river() const { return is_neighbor_river; }
+
 } // namespace Cubed