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find_nodes_in_area: Extend maximal count to U32_MAX (#5277)

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Extend documentation, limit area volume
Remove u16 count limitation

* Prevent integer overflow, replace minp/maxp with pos1/pos2
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SmallJoker 2017-06-19 16:30:26 +02:00 • committed by GitHub
parent 071736ba3f
commit 6eb03c135f
2 changed files with 49 additions and 22 deletions
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9
doc/lua_api.txt
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@ -2465,12 +2465,13 @@ and `minetest.auth_reload` call the authetification handler.
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `search_center` is an optional boolean (default: `false`)
If true `pos` is also checked for the nodes
* `minetest.find_nodes_in_area(minp, maxp, nodenames)`: returns a list of positions
* returns as second value a table with the count of the individual nodes found
* `minetest.find_nodes_in_area(pos1, pos2, nodenames)`: returns a list of positions
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `minetest.find_nodes_in_area_under_air(minp, maxp, nodenames)`: returns a list of positions
* returned positions are nodes with a node air above
* First return value: Table with all node positions
* Second return value: Table with the count of each node with the node name as index
* `minetest.find_nodes_in_area_under_air(pos1, pos2, nodenames)`: returns a list of positions
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* Return value: Table with all node positions with a node air above
* `minetest.get_perlin(noiseparams)`
* `minetest.get_perlin(seeddiff, octaves, persistence, scale)`
* Return world-specific perlin noise (`int(worldseed)+seeddiff`)