Editor: Edit functions in terrain texture editing mode
When an unselected piece of terrain is clicked with the primary edit button the texture from the brush button is applied to an area of the terrain specified by the current brush.
When a selected piece of terrain is clicked with the primary edit button the texture from the brush button is applied to all selected terrain tiles.
When the user clicks a piece of terrain with the secondary edit button the brush button is set to use the texture on this terrain tile.
(RM-3872 from redmine: created on 2017-05-14 by Marc Zinnschlag, , closed on 2018-06-04 by Nelsson Huotari, relates #4439)
Edited by redmine