client/shaders/minimap_shader

-- advtrains
-- protection.lua: privileges and rail protection, and some helpers


-- Privileges to control TRAIN DRIVING/COUPLING
minetest.register_privilege("train_operator", {
	description = "Without this privilege, a player can't do anything about trains, neither place or remove them nor drive or couple them (but he can build tracks if he has track_builder)",
	give_to_singleplayer= true,
});

minetest.register_privilege("train_admin", {
	description = "Player may drive, place or remove any trains from/to anywhere, regardless of owner, whitelist or protection",
	give_to_singleplayer= true,
});

-- Privileges to control TRACK BUILDING
minetest.register_privilege("track_builder", {
	description = "Player can place and/or dig rails not protected from him. If he also has protection_bypass, he can place/dig any rails",
	give_to_singleplayer= true,
});

-- Privileges to control OPERATING TURNOUTS/SIGNALS
minetest.register_privilege("railway_operator", {
	description = "Player can operate turnouts and signals not protected from him. If he also has protection_bypass, he can operate any turnouts/signals",
	give_to_singleplayer= true,
});

-- there is a configuration option "allow_build_only_owner". If this is active, a player having track_builder can only build rails and operate signals/turnouts in an area explicitly belonging to him
-- (checked using a dummy player called "*dummy*" (which is not an allowed player name))

--[[
Protection/privilege concept:
Tracks:
	Protected 1 node all around a rail and 4 nodes upward (maybe make this dynamically determined by the rail...)
	if track_builder privilege:
		if not protected from* player:
			if allow_build_only_owner:
				if unprotected:
					deny
			else:
				allow
	deny
Wagons in general:
Mode	Name	Size
-rw-r--r--	opengl_fragment.glsl	1369	log plain
-rw-r--r--	opengl_vertex.glsl	193	log plain