Some vector functions useful for working with rotations (#9572)

2020-06-09T17:38:39+00:00

* added vector.rotate * added vector.forward_from_rotation and vector.up_from_rotation * added vector.forward_up_to_rotatiton * fixed some bugs and formatting with vector functions * shortened name of some new vector functions and added documentation * made vector.rotate not require a unit vector as axis * fixed crash with vector.forward_up_to_rot * renamed new vector functions, made vector.rotate apply a rotation matrix, old vector.rotate is now called vector.rotate_around_axis * documented vector function changes * removed some whitespace to appease luacheck * implemented and fixed optimization of vector.rotate_around_axis by SmallJoker * added some unit tests for rotation vector functions * clarified that rotation vectors are in radians and according to the left hand rule * hopefully appeased luacheck * renamed rotation_to_horizontal to forward_at_rotation, rotation_to_vertical to up_at_rotation * handled cases where sin or cos are 0 in rotation vector functions * added more comments * clarified documentation of rotation vector functions * added more unit tests * changed way in which vector.rotate_around_axis is adjusted for left handed coordinate systems * made vector.rotate_around_axis actually left handed * unrolled matrix multiplication * removed vector.forward_at_rotation and vector.up_at_rotation * prettified vector.rotate_around_axis, made previous commits not break anything * removed references to removed vector.forward_at_rotation and vector.up_at_rotation * removed documentation of removed vector functions * clarified documentation and fixed styling of rotation vector functions * restyled comments minorly * spelling fixes and some hopefully better comments * allowed 'up' to be missing from vector.directions_to_rotation and removed requirement for unit vectors as arguments * made vector.rotate_around_axis() right handed again for consistency * documented previous changes * made matrix multiplication actually multiply * renamed vector.directions_to_rotation() to vector.dir_to_rotation() * optimized a distance comparison * Fixed potential false positive in unit tests. Co-authored-by: NetherEran

LuaItemStack: Add __tostring metamethod (#8785)

2020-06-09T17:37:25+00:00

* LuaItemStack: Add __tostring metamethod * Clean up LuaItemStack::checkobject

Add minetest.is_creative_enabled

2020-05-29T20:45:40+00:00

builtin: Move common/async_event.lua to mainmenu/async_event.lua

2020-05-17T19:37:01+00:00

It only works in the context of the mainmenu.

Allow placing auto-rotating nodes on other nodes in on_rightclick (#9859)

2020-05-13T11:57:05+00:00

minetest.serialize: Reversible number serialization (#9722)

2020-04-22T14:43:48+00:00

* minetest.serialize: Reversible number to string conversion The %a format is not supported in Lua 5.1. This commit also adds two tests for number serialization.

Fix some chatcommands not returning a value (#9503)

2020-03-14T14:01:22+00:00

Cleanup global namespace pollution in builtin (#9451)

2020-03-06T20:19:14+00:00

Fix potential security issue(s), documentation on minetest.deserialize() (#9369)

2020-03-05T21:03:04+00:00

Also adds an unittest

Add table.shuffle (#8299)

2020-02-01T15:09:45+00:00

minetest.git/builtin/common, branch 5.3.0