minetest.git/src/script, branch find_nodes_in_area

Fix minetest.find_nodes_in_area() coord clamping

2021-12-14T15:17:49+00:00

Previously, minetest.find_nodes_in_area() was affected by a signed integer overflow, which was fixed by clamping the area in which the function works to MAX_MAP_GENERATION_LIMIT & -MAX_MAP_GENERATION_LIMIT. The problem with that approach is that nodes can exist and even be generated past MAX_MAP_GENERATION_LIMIT in vanilla Minetest – which, despite the name, does not specify exactly where the map generator stops working. Therefore, the bug fix created an unknown amount of other bugs near the map border. At minimum, those bugs affect the outer mapblocks, where nodes past MAX_MAP_GENERATION_LIMIT can be generated. Ironically, the first thing broken by the faulty bug fix was a test case belonging to a workaround that prevents minetest.find_nodes_in_area() being called with coordinates out of s16 bounds in the Mineclonia game, thus avoiding signed integer overflow. Using INT16_MIN+1 & INT16_MAX-1 makes minetest.find_nodes_in_area() work for all coordinates that worked before the faulty fix, avoiding a situation where Minetest can place a node in the map, but then not find it afterwards using minetest_find_nodes_in_area().

Implemented disconnect_player (#10492)

2021-11-26T19:19:40+00:00

Co-authored-by: rubenwardy

Fix find_nodes_in_area misbehaving with out-of-map coordinates (#11770)

2021-11-26T18:32:41+00:00

This ensures that no overflows (side-effects) happen within the find_nodes_in_area function by limiting coordinates like done in the map generation code.

Add Lua bitop library (#9847)

2021-11-26T18:31:05+00:00

Lua API: Add `rmdir`, `cpdir` and `mvdir` (#9638)

2021-11-10T18:10:20+00:00

Co-authored-by: rubenwardy

Fix number of tool uses being off by 1..32767 (#11110)

2021-10-31T22:33:33+00:00

Fix item duplication if player dies during interact callback (alternative) (#11662)

2021-10-25T18:30:27+00:00

Remove a few unused functions reported by callcatcher (#11658)

2021-10-12T18:12:20+00:00

Move instead of copy during content install if possible

2021-10-06T22:20:01+00:00

Move archive extraction in content store to async job

2021-10-06T22:20:01+00:00