rset=UTF-8 Last-Modified: Tue, 20 Oct 2026 15:08:14 GMT Expires: Fri, 17 Oct 2036 15:08:14 GMT advtrains.git - Advtrains mod for minetest.
aboutsummaryrefslogtreecommitdiff
ModeNameSize
-rw-r--r--.gitignore58logplain
d---------advtrains1179logplain
d---------advtrains_interlocking76logplain
d---------advtrains_itrainmap110logplain
d---------advtrains_luaautomation614logplain
d---------advtrains_signals_ks104logplain
d---------advtrains_train_industrial209logplain
d---------advtrains_train_japan209logplain
d---------advtrains_train_steam251logplain
d---------advtrains_train_subway209logplain
d---------advtrains_train_track143logplain
d---------assets1344logplain
-rw-r--r--atc_command.txt3319logplain
-rw-r--r--description.txt145logplain
-rw-r--r--license.txt23977logplain
-rw-r--r--license_media.txt20744logplain
-rw-r--r--manual.pdf801491logplain
-rw-r--r--modpack.txt0logplain
-rw-r--r--privilege_guide.txt1518logplain
-rw-r--r--readme.txt1201logplain
-rw-r--r--screenshot.png809738logplain
generated by cgit v1.2.3 (git 2.39.1) at 2026-10-20 15:08:14 +0000
d='n302' href='#n302'>302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 
--trackplacer.lua
--holds code for the track-placing system. the default 'track' item will be a craftitem that places rails as needed. this will neither place or change switches nor place vertical rails.

--all new trackplacer code
local tp={
	tracks={}
}

function tp.register_tracktype(nnprefix, n_suffix)
	if tp.tracks[nnprefix] then return end--due to the separate registration of slopes and flats for the same nnpref, definition would be overridden here. just don't.
	tp.tracks[nnprefix]={
		default=n_suffix,
		single_conn={},
		single_conn_1={},
		single_conn_2={},
		double_conn={},
		double_conn_1={},
		double_conn_2={},
		--keys:conn1_conn2 (example:1_4)
		--values:{name=x, param2=x}
		twcycle={},
		twrotate={},--indexed by suffix, list, tells order of rotations
		modify={},
	}
end
function tp.add_double_conn(nnprefix, suffix, rotation, conns)
	local nodename=nnprefix.."_"..suffix..rotation
	for i=0,3 do
		tp.tracks[nnprefix].double_conn[((conns.conn1+4*i)%16).."_"..((conns.conn2+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].double_conn[((conns.conn2+4*i)%16).."_"..((conns.conn1+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].double_conn_1[((conns.conn1+4*i)%16).."_"..((conns.conn2+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].double_conn_2[((conns.conn2+4*i)%16).."_"..((conns.conn1+4*i)%16)]={name=nodename, param2=i}
	end
	tp.tracks[nnprefix].modify[nodename]=true
end
function tp.add_single_conn(nnprefix, suffix, rotation, conns)
	local nodename=nnprefix.."_"..suffix..rotation
	for i=0,3 do
		tp.tracks[nnprefix].single_conn[((conns.conn1+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].single_conn[((conns.conn2+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].single_conn_1[((conns.conn1+4*i)%16)]={name=nodename, param2=i}
		tp.tracks[nnprefix].single_conn_2[((conns.conn2+4*i)%16)]={name=nodename, param2=i}
	end
	tp.tracks[nnprefix].modify[nodename]=true
end


function tp.add_worked(nnprefix, suffix, rotation, cycle_follows)
	tp.tracks[nnprefix].twcycle[suffix]=cycle_follows
	if not tp.tracks[nnprefix].twrotate[suffix] then tp.tracks[nnprefix].twrotate[suffix]={} end
	table.insert(tp.tracks[nnprefix].twrotate[suffix], rotation)
end


--[[
	rewrite algorithm.
	selection criteria: these will never be changed or even selected:
	- tracks being already connected on both sides
	- tracks that are already connected on one side but are not bendable to the desired position
	the following situations can occur:
	1. there are two more than two rails around
		1.1 there is one or more subset(s) that can be directly connected
			-> choose the first possibility
		2.2 not
			-> choose the first one and orient straight
	2. there's exactly 1 rail around
		-> choose and orient straight
	3. there's no rail around
		-> set straight
]]

local function istrackandbc(pos_p, conn)
	local tpos = pos_p
	local cnode=minetest.get_node(advtrains.dirCoordSet(tpos, conn.c))
	if advtrains.is_track_and_drives_on(cnode.name, advtrains.all_tracktypes) then
		local cconns=advtrains.get_track_connections(cnode.name, cnode.param2)
		return advtrains.conn_matches_to(conn, cconns)
	end
	--try the same 1 node below
	tpos = {x=tpos.x, y=tpos.y-1, z=tpos.z}
	cnode=minetest.get_node(advtrains.dirCoordSet(tpos, conn.c))
	if advtrains.is_track_and_drives_on(cnode.name, advtrains.all_tracktypes) then
		local cconns=advtrains.get_track_connections(cnode.name, cnode.param2)
		return advtrains.conn_matches_to(conn, cconns)
	end
	return false
end

function tp.find_already_connected(pos)
	local dnode=minetest.get_node(pos)
	local dconns=advtrains.get_track_connections(dnode.name, dnode.param2)
	local found_conn
	for connid, conn in ipairs(dconns) do
		if istrackandbc(pos, conn) then
			if found_conn then --we found one in previous iteration
				return true, true --signal that it's connected
			else
				found_conn = conn.c
			end
		end
	end
	return found_conn
end
function tp.rail_and_can_be_bent(originpos, conn)
	local pos=advtrains.dirCoordSet(originpos, conn)
	local newdir=(conn+8)%16
	local node=minetest.get_node(pos)
	if not advtrains.is_track_and_drives_on(node.name, advtrains.all_tracktypes) then
		return false
	end
	local ndef=minetest.registered_nodes[node.name]
	local nnpref = ndef and ndef.at_nnpref
	if not nnpref then return false end
	local tr=tp.tracks[nnpref]
	if not tr then return false end
	if not tr.modify[node.name] then 
		--we actually can use this rail, but only if it already points to the desired direction.
		if advtrains.is_track_and_drives_on(node.name, advtrains.all_tracktypes) then
			local cconns=advtrains.get_track_connections(node.name, node.param2)
			return advtrains.conn_matches_to(conn, cconns)
		end
	end
	-- If the rail is not allowed to be modified, also only use if already in desired direction
	if not advtrains.can_dig_or_modify_track(pos) then
		local cconns=advtrains.get_track_connections(node.name, node.param2)
		return advtrains.conn_matches_to(conn, cconns)
	end
	--rail at other end?
	local adj1, adj2=tp.find_already_connected(pos)
	if adj1 and adj2 then
		return false--dont destroy existing track
	elseif adj1 and not adj2 then
		if tr.double_conn[adj1.."_"..newdir] then
			return true--if exists, connect new rail and old end
		end
		return false
	else
		if tr.single_conn[newdir] then--just rotate old rail to right orientation
			return true
		end
		return false
	end
end
function tp.bend_rail(originpos, conn)
	local pos=advtrains.dirCoordSet(originpos, conn)
	local newdir=advtrains.oppd(conn)
	local node=minetest.get_node(pos)
	local ndef=minetest.registered_nodes[node.name]
	local nnpref = ndef and ndef.at_nnpref
	if not nnpref then return false end
	local tr=tp.tracks[nnpref]
	if not tr then return false end
	--is rail already connected? no need to bend.
	local conns=advtrains.get_track_connections(node.name, node.param2)
	if advtrains.conn_matches_to(conn, conns) then
		return
	end
	--rail at other end?
	local adj1, adj2=tp.find_already_connected(pos)
	if adj1 and adj2 then
		return false--dont destroy existing track
	elseif adj1 and not adj2 then
		if tr.double_conn[adj1.."_"..newdir] then
			advtrains.ndb.swap_node(pos, tr.double_conn[adj1.."_"..newdir])
			return true--if exists, connect new rail and old end
		end
		return false
	else
		if tr.single_conn[newdir] then--just rotate old rail to right orientation
			advtrains.ndb.swap_node(pos, tr.single_conn[newdir])
			return true
		end
		return false
	end
end
function tp.placetrack(pos, nnpref, placer, itemstack, pointed_thing, yaw)
	--1. find all rails that are likely to be connected
	local tr=tp.tracks[nnpref]
	local p_rails={}
	local p_railpos={}
	for i=0,15 do
		if tp.rail_and_can_be_bent(pos, i, nnpref) then
			p_rails[#p_rails+1]=i
			p_railpos[i] = pos
		else
			local upos = {x=pos.x, y=pos.y-1, z=pos.z}
			if tp.rail_and_can_be_bent(upos, i, nnpref) then
				p_rails[#p_rails+1]=i
				p_railpos[i] = upos
			end
		end
	end
	
	-- try double_conn
	if #p_rails > 1 then
		--iterate subsets
		for k1, conn1 in ipairs(p_rails) do
			for k2, conn2 in ipairs(p_rails) do
				if k1~=k2 then
					local dconn1 = tr.double_conn_1
					local dconn2 = tr.double_conn_2
					if not (advtrains.yawToDirection(yaw, conn1, conn2) == conn1) then
						dconn1 = tr.double_conn_2
						dconn2 = tr.double_conn_1
					end
					-- Checks are made this way round so that dconn1 has priority (this will make arrows of atc rails
					-- point in the right direction)
					local using
					if (dconn2[conn1.."_"..conn2]) then
						using = dconn2[conn1.."_"..conn2]
					end
					if (dconn1[conn1.."_"..conn2]) then
						using = dconn1[conn1.."_"..conn2]
					end
					if using then
						-- has found a fitting rail in either direction
						-- if not, continue loop
						tp.bend_rail(p_railpos[conn1], conn1, nnpref)
						tp.bend_rail(p_railpos[conn2], conn2, nnpref)
						advtrains.ndb.swap_node(pos, using)
						local nname=using.name
						if minetest.registered_nodes[nname] and minetest.registered_nodes[nname].after_place_node then
							minetest.registered_nodes[nname].after_place_node(pos, placer, itemstack, pointed_thing)
						end
						return
					end
				end
			end
		end
	end
	-- try single_conn
	if #p_rails > 0 then
		for ix, p_rail in ipairs(p_rails) do
			local sconn1 = tr.single_conn_1
			local sconn2 = tr.single_conn_2
			if not (advtrains.yawToDirection(yaw, p_rail, (p_rail+8)%16) == p_rail) then
				sconn1 = tr.single_conn_2
				sconn2 = tr.single_conn_1
			end
			if sconn1[p_rail] then
				local using = sconn1[p_rail]
				tp.bend_rail(p_railpos[p_rail], p_rail, nnpref)
				advtrains.ndb.swap_node(pos, using)
				local nname=using.name
				if minetest.registered_nodes[nname] and minetest.registered_nodes[nname].after_place_node then
					minetest.registered_nodes[nname].after_place_node(pos, placer, itemstack, pointed_thing)
				end
				return
			end
			if sconn2[p_rail] then
				local using = sconn2[p_rail]
				tp.bend_rail(p_railpos[p_rail], p_rail, nnpref)
				advtrains.ndb.swap_node(pos, using)
				local nname=using.name
				if minetest.registered_nodes[nname] and minetest.registered_nodes[nname].after_place_node then
					minetest.registered_nodes[nname].after_place_node(pos, placer, itemstack, pointed_thing)
				end
				return
			end
		end
	end
	--use default
	minetest.set_node(pos, {name=nnpref.."_"..tr.default})
	if minetest.registered_nodes[nnpref.."_"..tr.default] and minetest.registered_nodes[nnpref.."_"..tr.default].after_place_node then
		minetest.registered_nodes[nnpref.."_"..tr.default].after_place_node(pos, placer, itemstack, pointed_thing)
	end
end


function tp.register_track_placer(nnprefix, imgprefix, dispname, def)
	minetest.register_craftitem(":"..nnprefix.."_placer",{
		description = dispname,
		inventory_image = imgprefix.."_placer.png",
		wield_image = imgprefix.."_placer.png",
		groups={advtrains_trackplacer=1, digtron_on_place=1},
		liquids_pointable = def.liquids_pointable,
		on_place = function(itemstack, placer, pointed_thing)
				local name = placer:get_player_name()
				if not name then
				   return itemstack, false
				end
				if pointed_thing.type=="node" then
					local pos=pointed_thing.above
					local upos=vector.subtract(pointed_thing.above, {x=0, y=1, z=0})
					if not advtrains.check_track_protection(pos, name) then
						return itemstack, false
					end
					if minetest.registered_nodes[minetest.get_node(pos).name] and minetest.registered_nodes[minetest.get_node(pos).name].buildable_to then
						local s
						if def.suitable_substrate then
							s = def.suitable_substrate(upos)
						else
							s = minetest.registered_nodes[minetest.get_node(upos).name] and minetest.registered_nodes[minetest.get_node(upos).name].walkable
						end
						if s then
--						minetest.chat_send_all(nnprefix)
							local yaw = placer:get_look_horizontal()
							tp.placetrack(pos, nnprefix, placer, itemstack, pointed_thing, yaw)
							if not advtrains.is_creative(name) then
								itemstack:take_item()
							end
						end
					end
				end
				return itemstack, true
		end,
	})
end



minetest.register_craftitem("advtrains:trackworker",{
	description = attrans("Track Worker Tool\n\nLeft-click: change rail type (straight/curve/switch)\nRight-click: rotate rail/bumper/signal/etc."),
	groups = {cracky=1}, -- key=name, value=rating; rating=1..3.
	inventory_image = "advtrains_trackworker.png",
	wield_image = "advtrains_trackworker.png",
	stack_max = 1,
	on_place = function(itemstack, placer, pointed_thing)
			local name = placer:get_player_name()
			if not name then
				return
			end
			local has_aux1_down = placer:get_player_control().aux1
			if pointed_thing.type=="node" then
				local pos=pointed_thing.under
				if not advtrains.check_track_protection(pos, name) then
					return
				end
				local node=minetest.get_node(pos)

				--if not advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then return end
				
				local nnprefix, suffix, rotation=string.match(node.name, "^(.+)_([^_]+)(_[^_]+)$")
				--atdebug(node.name.."\npattern recognizes:"..nnprefix.." / "..suffix.." / "..rotation)
				--atdebug("nntab: ",tp.tracks[nnprefix])
				if not tp.tracks[nnprefix] or not tp.tracks[nnprefix].twrotate[suffix] then
					nnprefix, suffix=string.match(node.name, "^(.+)_([^_]+)$")
					rotation = ""
					if not tp.tracks[nnprefix] or not tp.tracks[nnprefix].twrotate[suffix] then
						minetest.chat_send_player(placer:get_player_name(), attrans("This node can't be rotated using the trackworker!"))
						return
					end
				end
				
				-- check if the node is modify-protected
				if advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then
					-- is a track, we can query
					local can_modify, reason = advtrains.can_dig_or_modify_track(pos)
					if not can_modify then
						local str = attrans("This track can not be rotated!")
						if reason then
							str = str .. " " .. reason
						end
						minetest.chat_send_player(placer:get_player_name(), str)
						return
					end
				end
				
				if has_aux1_down then
					--feature: flip the node by 180°
					--i've always wanted this!
					advtrains.ndb.swap_node(pos, {name=node.name, param2=(node.param2+2)%4})
					return
				end
				
				local modext=tp.tracks[nnprefix].twrotate[suffix]

				if rotation==modext[#modext] then --increase param2
					advtrains.ndb.swap_node(pos, {name=nnprefix.."_"..suffix..modext[1], param2=(node.param2+1)%4})
					return
				else
					local modpos
					for k,v in pairs(modext) do
						if v==rotation then modpos=k end
					end
					if not modpos then
						minetest.chat_send_player(placer:get_player_name(), attrans("This node can't be rotated using the trackworker!"))
						return
					end
					advtrains.ndb.swap_node(pos, {name=nnprefix.."_"..suffix..modext[modpos+1], param2=node.param2})
				end
			end
	end,
	on_use=function(itemstack, user, pointed_thing)
				local name = user:get_player_name()
			if not name then
			   return
			end
			if pointed_thing.type=="node" then
				local pos=pointed_thing.under
				local node=minetest.get_node(pos)
				if not advtrains.check_track_protection(pos, name) then
					return
				end
				
				--if not advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then return end
				if advtrains.get_train_at_pos(pos) then return end
				local nnprefix, suffix, rotation=string.match(node.name, "^(.+)_([^_]+)(_[^_]+)$")
				--atdebug(node.name.."\npattern recognizes:"..nodeprefix.." / "..railtype.." / "..rotation)
				if not tp.tracks[nnprefix] or not tp.tracks[nnprefix].twcycle[suffix] then
				  nnprefix, suffix=string.match(node.name, "^(.+)_([^_]+)$")
				  rotation = ""
				  if not tp.tracks[nnprefix] or not tp.tracks[nnprefix].twcycle[suffix] then
					minetest.chat_send_player(user:get_player_name(), attrans("This node can't be changed using the trackworker!"))
					return
				  end
				end
				
				-- check if the node is modify-protected
				if advtrains.is_track_and_drives_on(minetest.get_node(pos).name, advtrains.all_tracktypes) then
					-- is a track, we can query
					local can_modify, reason = advtrains.can_dig_or_modify_track(pos)
					if not can_modify then
						local str = attrans("This track can not be changed!")
						if reason then
							str = str .. " " .. reason
						end
						minetest.chat_send_player(user:get_player_name(), str)
						return
					end
				end
				
				local nextsuffix=tp.tracks[nnprefix].twcycle[suffix]
				advtrains.ndb.swap_node(pos, {name=nnprefix.."_"..nextsuffix..rotation, param2=node.param2})
				
			else
				atprint(name, dump(tp.tracks))
			end
	end,
})

--putting into right place
advtrains.trackplacer=tp
generated by cgit v1.2.3 (git 2.39.1) at 2026-10-20 15:08:14 +0000