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-- Signal API implementation
--[[ Signal aspect table:
asp = {
main = {
free = <boolean>,
speed = <int km/h>,
},
shunt = {
free = <boolean>,
}
dst = {
free = <boolean>,
speed = <int km/h>,
}
info = {
call_on = <boolean>, -- Call-on route, expect train in track ahead
dead_end = <boolean>, -- Route ends on a dead end (e.g. bumper)
}
}
Signals API:
groups = {
advtrains_signal = 1,
save_in_at_nodedb = 1,
}
advtrains = {
function set_aspect(pos, node, asp)
...
end
}
on_rightclick = advtrains.interlocking.signal_rc_handler
]]--
local DANGER = {
main = {
free = false,
speed = 0,
},
shunt = {
free = false,
},
dst = {
free = false,
speed = 0,
},
info = {}
}
function advtrains.interlocking.signal_set_aspect(pos, asp)
local node=advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
if ndef and ndef.advtrains and ndef.advtrains.set_aspect then
ndef.advtrains.set_aspect(pos, node, asp)
end
end
function advtrains.interlocking.signal_rc_handler(pos, node, player, itemstack, pointed_thing)
local pname = player:get_player_name()
local sigd = advtrains.interlocking.db.get_sigd_for_signal(pos)
if sigd then
advtrains.interlocking.show_signalling_form(sigd, pname)
else
-- permit to set aspect manually
minetest.show_formspec(pname, "at_il_sigasp_"..minetest.pos_to_string(pos), "field[aspect;Set Aspect (F/D)Speed(F/D)Speed(F/D);D0D0D]")
end
end
minetest.register_on_player_receive_fields(function(player, formname, fields)
local pname = player:get_player_name()
local pts = string.match(formname, "^at_il_sigasp_(.+)$")
local pos
if pts then pos = minetest.string_to_pos(pts) end
if pos and fields.aspect then
local mfs, msps, dfs, dsps, shs = string.match(fields.aspect, "^([FD])([0-9]+)([FD])([0-9]+)([FD])$")
local asp = {
main = {
free = mfs=="F",
speed = tonumber(msps),
},
shunt = {
free = shs=="F",
},
dst = {
free = dfs=="F",
speed = tonumber(dsps),
},
info = {
call_on = false, -- Call-on route, expect train in track ahead
dead_end = false, -- Route ends on a dead end (e.g. bumper)
}
}
advtrains.interlocking.signal_set_aspect(pos, asp)
end
end)
-- Returns the aspect the signal at pos is supposed to show
function advtrains.interlocking.signal_get_aspect(pos)
local sigd = advtrains.interlocking.db.get_sigd_for_signal(pos)
if sigd then
local tcbs = advtrains.interlocking.db.get_tcbs(sigd)
if tcbs.aspect then
return tcbs.aspect
end
end
return DANGER;
end
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