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-rw-r--r--advtrains/passive.lua99
1 files changed, 99 insertions, 0 deletions
diff --git a/advtrains/passive.lua b/advtrains/passive.lua
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+-- 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