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path: root/advtrains/advtrains_luaautomation/passive.lua
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-rw-r--r--advtrains/advtrains_luaautomation/passive.lua37
1 files changed, 37 insertions, 0 deletions
diff --git a/advtrains/advtrains_luaautomation/passive.lua b/advtrains/advtrains_luaautomation/passive.lua
new file mode 100644
index 0000000..e32bee9
--- /dev/null
+++ b/advtrains/advtrains_luaautomation/passive.lua
@@ -0,0 +1,37 @@
+-- passive.lua
+-- API to passive components, as described in passive_api.txt
+
+local function getstate(pos)
+ if not 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=advtrains.ndb.get_node(pos)
+ local ndef=minetest.registered_nodes[node.name]
+ if ndef and ndef.luaautomation and ndef.luaautomation.getstate then
+ local st=ndef.luaautomation.getstate
+ if type(st)=="function" then
+ return st(pos, node)
+ else
+ return st
+ end
+ end
+ return nil
+end
+
+local function setstate(pos, newstate)
+ if not type(pos)=="table" or not pos.x or not pos.y or not pos.z then
+ debug.sethook()
+ error("Invalid position supplied to setstate")
+ end
+ local node=advtrains.ndb.get_node(pos)
+ local ndef=minetest.registered_nodes[node.name]
+ if ndef and ndef.luaautomation and ndef.luaautomation.setstate then
+ local st=ndef.luaautomation.setstate
+ st(pos, node, newstate)
+ end
+end
+
+-- gets called from environment.lua
+-- return the values here to keep them local
+return getstate, setstate