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Seamless chunk borders #4

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EmaMaker merged 3 commits from chunkborders into main 2023-06-01 21:37:19 +02:00
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EmaMaker commented 2023-06-01 21:36:38 +02:00
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Removes walls between chunks at chunk borders, looks into neighbouring chunks for data.
Adds ability to get a block at arbitrary position in the world.

Paves the way for Fast Flood Fill Lighting as in SeaOfAndromeda and possibily for multiple concurrent mesh threads

Removes walls between chunks at chunk borders, looks into neighbouring chunks for data. Adds ability to get a block at arbitrary position in the world. Paves the way for Fast Flood Fill Lighting as in [SeaOfAndromeda](https://web.archive.org/web/20210622035752/https://www.seedofandromeda.com/blogs/29-fast-flood-fill-lighting-in-a-blocky-voxel-game-pt-1) and possibily for multiple concurrent mesh threads
EmaMaker added 3 commits 2023-06-01 21:36:39 +02:00
0ebbb897dc chunk: handle special cases for getBlocks 
Returning Block::AIR when chunk is not yet generated (CHUNK_STATE_GENERATED set to false) is also a way to avoid thread-unsafe concurrent
access to the IntervalMaps data structure, since CHUNK_STATE_GENERATED is set to false before
generating the Chunk and set again to true after generation is complete
f798575cac chunkmanager: add function getBlockAtPos, returns block at world pos 
Returns Block::NULLBLK only to signal an invalid position
EmaMaker merged commit 73f38e5d2f into main 2023-06-01 21:37:18 +02:00
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Reference: EmaMaker/voxel-engine#4
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