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Add minetest.bulk_set_node call + optimize Environment::set_node call (#6958)

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* Add minetest.bulk_set_node call + experimental mod unittest

* Optimize set_node function to prevent triple lookup on contentfeatures

Do only one lookup for old, and try to merge old and new lookup if node is same than previous node

* Add benchmark function + optimize vector population to have real results
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Loïc Blot 2018-01-30 00:30:02 +01:00 • committed by GitHub
parent 3b4df956b1
commit 584d00a01c
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5 changed files with 124 additions and 3 deletions
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doc/lua_api.txt
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@ -2749,6 +2749,15 @@ and `minetest.auth_reload` call the authentication handler.
* `node`: table `{name=string, param1=number, param2=number}`
* If param1 or param2 is omitted, it's set to `0`.
* e.g. `minetest.set_node({x=0, y=10, z=0}, {name="default:wood"})`
* `minetest.bulk_set_node({pos1, pos2, pos3, ...}, node)`
* Set node on all positions set in the first argument.
* e.g. `minetest.bulk_set_node({{x=0, y=1, z=1}, {x=1, y=2, z=2}}, {name="default:stone"})`
* For node specification or position syntax see `minetest.set_node` call
* Faster than set_node due to single call, but still considerably slower than
Voxel Manipulators (LVM) for large numbers of nodes.
Unlike LVMs, this will call node callbacks. It also allows setting nodes in spread out
positions which would cause LVMs to waste memory.
For setting a cube, this is 1.3x faster than set_node whereas LVM is 20x faster.
* `minetest.swap_node(pos, node)`
* Set node at position, but don't remove metadata
* `minetest.remove_node(pos)`