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Do not modify rails that should not be modified 

... when placing tracks, such as slopes
Fixes slopes being replaced by curves.
Also, check the node below for connection (does not check rely, but that would be uneccessary)
master
orwell96 2017-11-24 12:11:45 +01:00
parent ef076d6435
commit a3d3520fdb
1 changed files with 39 additions and 13 deletions
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52
advtrains/trackplacer.lua
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@ -65,16 +65,26 @@ end
-> set straight
]]
function tp.find_already_connected(pos)--TODO vertical calculations(check node below)
local function istrackandbc(pos, conn)
local cnode=minetest.get_node(advtrains.dirCoordSet(pos, conn))
local bconn=(conn+8)%16
if advtrains.is_track_and_drives_on(cnode.name, advtrains.all_tracktypes) then
local cconn1, cconn2=advtrains.get_track_connections(cnode.name, cnode.param2)
return cconn1==bconn or cconn2==bconn
end
return false
local function istrackandbc(pos_p, conn)
local tpos = pos_p
local cnode=minetest.get_node(advtrains.dirCoordSet(tpos, conn))
local bconn=(conn+8)%16
if advtrains.is_track_and_drives_on(cnode.name, advtrains.all_tracktypes) then
local cconn1, cconn2=advtrains.get_track_connections(cnode.name, cnode.param2)
return cconn1==bconn or cconn2==bconn
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))
bconn=(conn+8)%16
if advtrains.is_track_and_drives_on(cnode.name, advtrains.all_tracktypes) then
local cconn1, cconn2=advtrains.get_track_connections(cnode.name, cnode.param2)
return cconn1==bconn or cconn2==bconn
end
return false
end
function tp.find_already_connected(pos)
local dnode=minetest.get_node(pos)
local dconn1, dconn2=advtrains.get_track_connections(dnode.name, dnode.param2)
if istrackandbc(pos, dconn1) and istrackandbc(pos, dconn2) then return dconn1, dconn2
@ -95,6 +105,14 @@ function tp.rail_and_can_be_bent(originpos, conn)
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.
local bconn=(conn+8)%16
if advtrains.is_track_and_drives_on(node.name, advtrains.all_tracktypes) then
local cconn1, cconn2=advtrains.get_track_connections(node.name, node.param2)
return cconn1==bconn or cconn2==bconn
end
end
--rail at other end?
local adj1, adj2=tp.find_already_connected(pos)
if adj1 and adj2 then
@ -147,9 +165,17 @@ 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
@ -160,8 +186,8 @@ function tp.placetrack(pos, nnpref, placer, itemstack, pointed_thing, yaw)
for k2, conn2 in ipairs(p_rails) do
if k1~=k2 then
if (tr.double_conn[conn1.."_"..conn2]) then
tp.bend_rail(pos, conn1, nnpref)
tp.bend_rail(pos, conn2, nnpref)
tp.bend_rail(p_railpos[conn1], conn1, nnpref)
tp.bend_rail(p_railpos[conn2], conn2, nnpref)
advtrains.ndb.swap_node(pos, tr.double_conn[conn1.."_"..conn2])
local nname=tr.double_conn[conn1.."_"..conn2].name
if minetest.registered_nodes[nname] and minetest.registered_nodes[nname].after_place_node then
@ -184,7 +210,7 @@ function tp.placetrack(pos, nnpref, placer, itemstack, pointed_thing, yaw)
end
if sconn1[p_rail] then
local using = sconn1[p_rail]
tp.bend_rail(pos, p_rail, nnpref)
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
@ -194,7 +220,7 @@ function tp.placetrack(pos, nnpref, placer, itemstack, pointed_thing, yaw)
end
if sconn2[p_rail] then
local using = sconn2[p_rail]
tp.bend_rail(pos, p_rail, nnpref)
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