feat: add perlin noise

include/Cubed/config.hpp

@@ -1,16 +1,18 @@
 #pragma once
 constexpr int WORLD_SIZE_X = 32;
 constexpr int WORLD_SIZE_Z = 32;
-constexpr int WORLD_SIZE_Y = 16;
+constexpr int WORLD_SIZE_Y = 256;
 constexpr int MAX_BLOCK_NUM = 2;
 constexpr int MAX_UI_NUM = 1;
 
 constexpr int CHUCK_SIZE = 16;
-constexpr int DISTANCE = 8;
+constexpr int DISTANCE = 16;
 constexpr int MAX_BLOCK_STATUS = 1;
 constexpr int MAX_CHARACTER = 128;
 constexpr float FOV = 70.0f;
 
+constexpr int SEED = 999;
+
 constexpr float VERTICES_POS[6][6][3] = {
         // ===== front (z = +1) =====
         0.0f, 0.0f, 1.0f,  // bottom left

include/Cubed/gameplay/chunk.hpp

@@ -16,6 +16,9 @@ private:
     std::vector<uint8_t> m_blocks;
     GLuint m_vbo = 0;
     std::vector<Vertex> m_vertexs_data;
+    
+    float frequency = 0.01f;
+    float height = 80;
 
 public:
     Chunk(World& world, ChunkPos chunk_pos);

include/Cubed/gameplay/player.hpp

@@ -21,7 +21,8 @@ private:
     
     float m_sensitivity = 0.15f;
 
-    float max_speed = 4.5f;
+    //float max_speed = 4.5f;
+    float max_speed = 7.5f;
     float y_speed = 0.0f;
     bool can_up = true;
     float speed = 0;
@@ -29,7 +30,7 @@ private:
     glm::vec3 direction = glm::vec3(0.0f, 0.0f, 0.0f);
     glm::vec3 move_distance {0.0f, 0.0f, 0.0f};
     // player is tow block tall, the pos is the lower pos
-    glm::vec3 m_player_pos {0.0f, 15.0f, 0.0f};
+    glm::vec3 m_player_pos {0.0f, 120.0f, 0.0f};
     glm::vec3 m_front {0, 0, -1};
     glm::vec3 m_right {0, 0, 0};
     glm::vec3 m_size {0.6f, 1.8f, 0.6f};

include/Cubed/tools/perlin_noise.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <vector>
+
+class PerlinNoise {
+public:
+    static void init();
+    static float noise(float x, float y, float z);
+private:
+    static inline bool is_init = false;
+    static inline std::vector<int> p;
+
+    static float fade(float t);
+    static float lerp(float t, float a, float b);
+    static float grad(int hash, float x, float y, float z);
+};