#pragma once #include #include #include "util.hpp" #include #define OCT_DIM 32 struct oct_state { int parent_stack_position = 0; uint64_t parent_stack[32] = { 0 }; uint8_t scale = 0; uint8_t idx_stack[32] = { 0 }; uint64_t current_descriptor; }; class Octree { public: static const int buffer_size = 100000; Octree(); ~Octree() {}; void Generate(char* data, sf::Vector3i dimensions); void Load(std::string octree_file_name); uint64_t *trunk_buffer; uint64_t trunk_buffer_position = buffer_size; uint64_t *descriptor_buffer; uint64_t descriptor_buffer_position = buffer_size; uint32_t *attachment_lookup; uint64_t attachment_lookup_position = buffer_size; uint64_t *attachment_buffer; uint64_t attachment_buffer_position = buffer_size; unsigned int trunk_cutoff = 3; uint64_t root_index = 0; int page_header_counter = 0x8000; uint64_t current_info_section_position = ((uint64_t)0)-1; uint64_t stack_pos = 0x8000; uint64_t global_pos = buffer_size - 50; uint64_t copy_to_stack(std::vector children, unsigned int voxel_scale); // With a position and the head of the stack. Traverse down the voxel hierarchy to find // the IDX and stack position of the highest resolution (maybe set resolution?) oct bool GetVoxel(sf::Vector3i position); void print_block(int block_pos); bool Validate(char* data, sf::Vector3i dimensions); private: std::tuple GenerationRecursion( char* data, // raw octree data sf::Vector3i dimensions, // dimensions of the raw data sf::Vector3i pos, // position of this generation node unsigned int voxel_scale // the voxel scale of this node ); char get1DIndexedVoxel(char* data, sf::Vector3i dimensions, sf::Vector3i position); std::vector anchor_stack; unsigned int octree_voxel_dimension = 32; // (X, Y, Z) mask for the idx const uint8_t idx_set_x_mask = 0x1; const uint8_t idx_set_y_mask = 0x2; const uint8_t idx_set_z_mask = 0x4; // Mask for checking if valid or leaf const uint8_t mask_8[8] = { 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 }; // Mask for counting the previous valid bits const uint8_t count_mask_8[8]{ 0x1, 0x3, 0x7, 0xF, 0x1F, 0x3F, 0x7F, 0xFF }; // uint64_t manipulation masks const uint64_t child_pointer_mask = 0x0000000000007fff; const uint64_t far_bit_mask = 0x8000; const uint64_t valid_mask = 0xFF0000; const uint64_t leaf_mask = 0xFF000000; const uint64_t contour_pointer_mask = 0xFFFFFF00000000; const uint64_t contour_mask = 0xFF00000000000000; // ======= DEBUG =========== int counter = 0; std::stringstream output_stream; // ========================= };