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Diffstat (limited to 'advtrains/advtrains_luaautomation/passive_api.txt')
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1 files changed, 23 insertions, 0 deletions
diff --git a/advtrains/advtrains_luaautomation/passive_api.txt b/advtrains/advtrains_luaautomation/passive_api.txt new file mode 100644 index 0000000..a735208 --- /dev/null +++ b/advtrains/advtrains_luaautomation/passive_api.txt @@ -0,0 +1,23 @@ +Lua Automation - Passive Component API + +Passive components are nodes that do not have code running in them. However, active components can query these and request actions from them. Examples: +Switches +Signals +Displays +Mesecon Transmitter + +All passive components have a table called 'luaautomation' in their node definition and have the group 'save_in_nodedb' set, so they work in unloaded chunks. +Example for a switch: +luaautomation = { + getstate = function(pos, node) + return "st" + end, + -- OR + getstate = "st", + + setstate = function(pos, node, newstate) + if newstate=="cr" then + advtrains.ndb.swap_node(pos, <corresponding switch alt>) + end + end +}
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