60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
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#if !defined(HANDMADE_WORLD_H)
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/* ========================================================================
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$File: $
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$Date: $
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$Revision: $
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$Creator: Casey Muratori $
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$Notice: (C) Copyright 2015 by Molly Rocket, Inc. All Rights Reserved. $
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======================================================================== */
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introspect(category:"world") struct world_position
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{
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// TODO(casey): It seems like we have to store ChunkX/Y/Z with each
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// entity because even though the sim region gather doesn't need it
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// at first, and we could get by without it, entity references pull
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// in entities WITHOUT going through their world_chunk, and thus
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// still need to know the ChunkX/Y/Z
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s32 ChunkX;
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s32 ChunkY;
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s32 ChunkZ;
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// NOTE(casey): These are the offsets from the chunk center
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v3 Offset_;
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};
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// TODO(casey): Could make this just tile_chunk and then allow multiple tile chunks per X/Y/Z
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struct world_entity_block
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{
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uint32 EntityCount;
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uint32 LowEntityIndex[16];
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world_entity_block *Next;
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};
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struct world_chunk
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{
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int32 ChunkX;
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int32 ChunkY;
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int32 ChunkZ;
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// TODO(casey): Profile this and determine if a pointer would be better here!
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world_entity_block FirstBlock;
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world_chunk *NextInHash;
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};
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struct world
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{
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v3 ChunkDimInMeters;
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world_entity_block *FirstFree;
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// TODO(casey): WorldChunkHash should probably switch to pointers IF
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// tile entity blocks continue to be stored en masse directly in the tile chunk!
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// NOTE(casey): A the moment, this must be a power of two!
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world_chunk ChunkHash[4096];
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};
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#define HANDMADE_WORLD_H
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#endif
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