advtrains/advtrains/passive.lua

122 lines
3.7 KiB
Lua

-- passive.lua
-- API to passive components, as described in passive_api.txt of advtrains_luaautomation
-- This has been moved to the advtrains core in turn with the interlocking system,
-- to prevent a dependency on luaautomation.
local deprecation_warned = {}
function advtrains.getstate(parpos, pnode)
local pos
if atlatc then
pos = atlatc.pcnaming.resolve_pos(parpos)
else
pos = advtrains.round_vector_floor_y(parpos)
end
if type(pos)~="table" or (not pos.x or not pos.y or not pos.z) then
debug.sethook()
error("Invalid position supplied to getstate")
end
local node=pnode or advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
local st
if ndef and ndef.advtrains and ndef.advtrains.getstate then
st=ndef.advtrains.getstate
elseif ndef and ndef.luaautomation and ndef.luaautomation.getstate then
if not deprecation_warned[node.name] then
minetest.log("warning", node.name.." uses deprecated definition of ATLATC functions in the 'luaautomation' field. Please move them to the 'advtrains' field!")
end
st=ndef.luaautomation.getstate
else
return nil
end
if type(st)=="function" then
return st(pos, node)
else
return st
end
end
function advtrains.setstate(parpos, newstate, pnode)
local pos
if atlatc then
pos = atlatc.pcnaming.resolve_pos(parpos)
else
pos = advtrains.round_vector_floor_y(parpos)
end
if type(pos)~="table" or (not pos.x or not pos.y or not pos.z) then
debug.sethook()
error("Invalid position supplied to getstate")
end
local node=pnode or advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
local st
if ndef and ndef.advtrains and ndef.advtrains.setstate then
st=ndef.advtrains.setstate
elseif ndef and ndef.luaautomation and ndef.luaautomation.setstate then
if not deprecation_warned[node.name] then
minetest.log("warning", node.name.." uses deprecated definition of ATLATC functions in the 'luaautomation' field. Please move them to the 'advtrains' field!")
end
st=ndef.luaautomation.setstate
else
return nil
end
if advtrains.get_train_at_pos(pos) then
return false
end
if advtrains.interlocking and advtrains.interlocking.route.has_route_lock(minetest.pos_to_string(pos)) then
return false
end
st(pos, node, newstate)
return true
end
function advtrains.is_passive(parpos, pnode)
local pos
if atlatc then
pos = atlatc.pcnaming.resolve_pos(parpos)
else
pos = advtrains.round_vector_floor_y(parpos)
end
if type(pos)~="table" or (not pos.x or not pos.y or not pos.z) then
debug.sethook()
error("Invalid position supplied to getstate")
end
local node=pnode or advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
if ndef and ndef.advtrains and ndef.advtrains.getstate then
return true
elseif ndef and ndef.luaautomation and ndef.luaautomation.getstate then
if not deprecation_warned[node.name] then
minetest.log("warning", node.name.." uses deprecated definition of ATLATC functions in the 'luaautomation' field. Please move them to the 'advtrains' field!")
end
return true
else
return false
end
end
-- switches a node back to fallback state, if defined. Doesn't support pcnaming.
function advtrains.set_fallback_state(pos, pnode)
local node=pnode or advtrains.ndb.get_node(pos)
local ndef=minetest.registered_nodes[node.name]
local st
if ndef and ndef.advtrains and ndef.advtrains.setstate
and ndef.advtrains.fallback_state then
if advtrains.get_train_at_pos(pos) then
return false
end
if advtrains.interlocking and advtrains.interlocking.route.has_route_lock(minetest.pos_to_string(pos)) then
return false
end
ndef.advtrains.setstate(pos, node, ndef.advtrains.fallback_state)
return true
end
end