Implemented on_stand for terrain
fixed intution
Merge branch 'master' of https://github.com/Zireael07/Underdark
fixed lava bug
merge
Fixed #79
Merge branch 'master' of https://github.com/Zireael07/Underdark
Merge pull request #80 from Sebsebeleb/master

on_stand for grids + #79 fixed