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authororwell96 <orwell@bleipb.de>2019-01-22 12:11:35 +0100
committerorwell96 <orwell@bleipb.de>2019-01-22 12:11:35 +0100
commite2ae763dba3f7f609eccd9b8dd378304fad24b0d (patch)
tree9592789bbf7224be4e2bc9a765ec4885f4c97c2e /advtrains_train_steam/textures/advtrains_wagon_inv.png
parentdac65af9839f05aa2b79ad87c3c53118149d54cb (diff)
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Revert "Correct last commit"
This reverts commit 5f290819cdb78303396f9f89907ebbc66a9d74b3.
Diffstat (limited to 'advtrains_train_steam/textures/advtrains_wagon_inv.png')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 14:54:39 +0000
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--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.

local print=function(t, ...) minetest.log("action", table.concat({t, ...}, " ")) minetest.chat_send_all(table.concat({t, ...}, " ")) end

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

function tp.register_tracktype(nnprefix, n_suffix)
	tp.tracks[nnprefix]={
		default=n_suffix,
		single_conn={},
		double_conn={},
		--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}
	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}
	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
]]