75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/**
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* Copyright (c) 2025 Dominic Masters
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#pragma once
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#include "dusk.h"
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#include "duskdefs.h"
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#define CHUNK_TILE_COUNT (CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_DEPTH)
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#define MAP_CHUNK_WIDTH 3
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#define MAP_CHUNK_HEIGHT 3
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#define MAP_CHUNK_DEPTH 3
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#define MAP_CHUNK_COUNT (MAP_CHUNK_WIDTH * MAP_CHUNK_HEIGHT * MAP_CHUNK_DEPTH)
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typedef int16_t worldunit_t;
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typedef int16_t chunkunit_t;
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typedef int16_t chunkindex_t;
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typedef uint32_t chunktileindex_t;
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typedef int32_t worldunits_t;
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typedef int32_t chunkunits_t;
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typedef struct worldpos_s {
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worldunit_t x, y, z;
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} worldpos_t;
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typedef struct chunkpos_t {
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chunkunit_t x, y, z;
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} chunkpos_t;
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/**
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* Compares two world positions for equality.
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*
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* @param a The first world position.
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* @param b The second world position.
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* @return true if equal, false otherwise.
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*/
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bool_t worldPosIsEqual(const worldpos_t a, const worldpos_t b);
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/**
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* Converts a world position to a chunk position.
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*
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* @param worldPos The world position.
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* @param out The output chunk position.
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*/
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void chunkPosToWorldPos(const chunkpos_t* chunkPos, worldpos_t* out);
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/**
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* Converts a chunk position to a world position.
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*
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* @param worldPos The world position.
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* @param out The output chunk position.
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*/
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void worldPosToChunkPos(const worldpos_t* worldPos, chunkpos_t* out);
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/**
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* Converts a position in world-space to an index inside a chunk that the tile
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* resides in.
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*
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* @param worldPos The world position.
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* @return The tile index within the chunk.
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*/
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chunktileindex_t worldPosToChunkTileIndex(const worldpos_t* worldPos);
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/**
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* Converts a chunk position to a world position.
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*
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* @param worldPos The world position.
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* @param out The output chunk position.
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*/
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chunkindex_t chunkPosToIndex(const chunkpos_t* pos); |