Samuel P 19abc7751b
API Compat fixes (#8)
Changes:

* api: add() and del() compat fixes
* add() returns the value being added if subject is not nil
* del() returns the value removed, if found in the table
(implies subject is not nil)
* api: atan2 returns are [0,1[ instead of ]-π,π]
* api: atan2 returns are offset by -1/4 circle
* atan2(0,0) = 0.75
* function behavior now matches pico8 on wiki example code
2020-02-03 13:43:32 +01:00
..
2020-02-03 13:43:32 +01:00