feat: add tree generation

include/Cubed/app.hpp

@@ -6,6 +6,7 @@
 #include <Cubed/renderer.hpp>
 #include <Cubed/texture_manager.hpp>
 #include <Cubed/window.hpp>
+namespace Cubed {
 
 class App {
 public:
@@ -35,7 +36,6 @@ private:
     inline static double fps_time_count = 0.0f;
     inline static int frame_count = 0;
     inline static int fps = 0;
-    inline static unsigned int m_seed = 0;
     
     void init();
     
@@ -46,4 +46,6 @@ private:
     void render();
     void run();
     void update();
-};
+};
+
+}

include/Cubed/config.hpp

@@ -1,6 +1,6 @@
 #pragma once
 constexpr int WORLD_SIZE_Y = 256;
-constexpr int MAX_BLOCK_NUM = 5;
+constexpr int MAX_BLOCK_NUM = 7;
 constexpr int MAX_UI_NUM = 1;
 
 constexpr int CHUCK_SIZE = 16;

include/Cubed/gameplay/biome.hpp

@@ -4,9 +4,9 @@
 
 constexpr float BIOME_NOISE_FREQUENCY = 0.003f;
 
-constexpr float PLAIN_FREQ = 0.5f;
-constexpr float FOREST_FREQ = 1.0f;
-constexpr float DESERT_FREQ = 1.0f;
+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 {

include/Cubed/gameplay/chunk.hpp

@@ -47,7 +47,7 @@ public:
     const std::vector<uint8_t>& get_chunk_blocks() const;    
     
     static int get_index(int x, int y, int z);
-    
+    static int get_index(const glm::vec3& pos);
     void init_chunk();
     void gen_vertex_data();
     // 0 : (1, 0)

include/Cubed/gameplay/tree.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <glm/glm.hpp>
+
+class Chunk;
+
+struct TreeStructNode {
+    glm::ivec3 offset{0, 0, 0};
+    unsigned id = 0;
+};
+
+bool build_tree(Chunk& chunk, const glm::ivec3& pos);

include/Cubed/tools/cubed_random.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <random>
+namespace Cubed {
+
+class Random {
+public:
+    Random();
+
+    static Random& get();
+
+    bool random_bool(double probability);
+    std::mt19937& engine();
+    unsigned seed();
+
+private:
+    unsigned int m_seed = 0;
+    std::mt19937 m_engine;
+};
+
+
+}

include/Cubed/tools/perlin_noise.hpp

@@ -4,7 +4,7 @@
 
 class PerlinNoise {
 public:
-    static void init(unsigned int seed);
+    static void init();
     static float noise(float x, float y, float z);
 private:
     static inline bool is_init = false;