diff --git a/mods/default/init.lua b/mods/default/init.lua index d4388e5f..7d27f98a 100644 --- a/mods/default/init.lua +++ b/mods/default/init.lua @@ -12,6 +12,20 @@ default = {} default.LIGHT_MAX = 14 default.get_translator = S +-- Check for engine features required by MTG +-- This provides clear error behaviour when MTG is newer than the installed engine +-- and avoids obscure, hard to debug runtime errors. +-- This section should be updated before release and older checks can be dropped +-- when newer ones are introduced. +if not minetest.is_creative_enabled or not minetest.has_feature({ + direct_velocity_on_players = true, + use_texture_alpha_string_modes = true, + }) then + error("\nThis version of Minetest Game is incompatible with your engine version ".. + "(which is too old). You should download a version of Minetest Game that ".. + "matches the installed engine version.\n") +end + -- GUI related stuff minetest.register_on_joinplayer(function(player) -- Set formspec prepend