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https://github.com/zhenyan121/Cubed.git
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f4114c2699
* refactor: use TBB for concurrent hash maps and parallelize chunk processing * fix: tbb link fail * refactor(chunk): remove biome check for caves in rivers and oceans * refactor(random): replace std distributions with custom implementations Avoid overhead and platform-dependent behavior of `<random>` distributions by using direct engine operations and integer arithmetic. This ensures deterministic, cross-platform results and improves performance. * refactor(generation): use chunk seed for cave and river paths - Use per-chunk seed instead of global path_id for cave and river generation. - Remove unused m_sum variables and m_path_id members. - Clamp river yaw within 10 degrees of initial direction. - Fix river radius interpolation (use t instead of 1-t). - Lower sea level from 64 to 63.
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
#pragma once
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#include "Cubed/gameplay/chunk_pos.hpp"
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#include "Cubed/gameplay/path_point.hpp"
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#include "Cubed/tools/cubed_random.hpp"
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#include <glm/glm.hpp>
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#include <tbb/concurrent_hash_map.h>
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namespace Cubed {
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class CavePath {
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using ChunkPosSet =
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tbb::concurrent_hash_map<ChunkPos, bool, ChunkPos::TBBHash>;
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public:
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CavePath(unsigned int chunk_seed, unsigned world_seed,
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const glm::vec3& start_pos);
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const std::vector<PathPoint>& points() const;
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void clear_chunk(const ChunkPos& pos);
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bool is_finished() const;
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static float& radius_xz_min();
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static float& radius_xz_max();
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static float& radius_y_min();
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static float& radius_y_max();
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static float& delta_angle_min();
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static float& delta_angle_max();
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static int& step_min();
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static int& step_max();
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private:
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static inline float m_radius_xz_min = 5.0f;
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static inline float m_radius_xz_max = 15.0f;
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static inline float m_radius_y_min = 4.0f;
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static inline float m_radius_y_max = 10.0f;
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static inline float m_delta_angle_min = -5.0f;
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static inline float m_delta_angle_max = 5.0f;
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static inline int m_step_min = 10;
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static inline int m_step_max = 400;
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unsigned int m_seed = 0;
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float m_yaw = 0.0f;
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float m_pitch = 0.0f;
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int m_step = 0;
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float m_step_len = 1.0f;
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PathPoint m_start_path_point{{0.0f, 0.0f, 0.0f}, 0.0f, 0.0f};
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Random m_random;
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std::vector<PathPoint> m_points;
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ChunkPosSet m_pending_chunks;
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void collect_path_points();
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void precompute_chunk_coverage();
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};
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} // namespace Cubed
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