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author | the lemons <citrons@mondecitronne.com> | 2022-02-12 19:02:00 -0600 |
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committer | the lemons <citrons@mondecitronne.com> | 2022-02-12 19:02:00 -0600 |
commit | 58770608d21aa913efe16dd24747c55cafd1858a (patch) | |
tree | 09aa16bc7b746475136390013ea77257537f6116 | |
parent | c6fcff61d7611f947679c1733c3f3912cde5ba97 (diff) |
event thingy
-rw-r--r-- | mods/vzxv/event.lua | 33 | ||||
-rw-r--r-- | mods/vzxv/utils.lua | 2 |
2 files changed, 35 insertions, 0 deletions
diff --git a/mods/vzxv/event.lua b/mods/vzxv/event.lua new file mode 100644 index 0000000..a7a0b7c --- /dev/null +++ b/mods/vzxv/event.lua @@ -0,0 +1,33 @@ + +vzxv.event = {} + +function vzxv.event.create() + local e = {} + setmetatable(e, vzxv.event) + return e +end + +function vzxv.event:register(func) + self[func] = true +end + +function vzxv.event:unregister(func) + self[func] = nil +end + +function vzxv.event:trigger(...) + local v + for f in pairs(self) do + v = {f(...)} + end + return table.unpack(v) +end + +-- iterate through all of the event handlers' results +function vzxv.event:trigger_each(...) + local p = pairs(self) + return function() + local f = p() + if f then return f(...) end + end +end diff --git a/mods/vzxv/utils.lua b/mods/vzxv/utils.lua index c9a376e..9067afe 100644 --- a/mods/vzxv/utils.lua +++ b/mods/vzxv/utils.lua @@ -1,4 +1,6 @@ +vzxv.include "event.lua" + function vzxv.mundane_block(name,visualname,tiles,settings) settings = settings or {} settings.description = visualname |