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https://github.com/Ukendio/jecs.git
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a73eeb1a4f
* Fix query types * Add systems to demo * Remove comments of inlined versions * Fix style * Replication * Test :iter
67 lines
1.8 KiB
Text
67 lines
1.8 KiB
Text
--!nonstrict
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--[[
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local signal = Signal.new() :: Signal.Signal<string, string>
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local events = collect(signal)
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local function system(world)
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for id, str1, str2 in events do
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--
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end
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end
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]]
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--[[
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original author by @memorycode
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MIT License
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Copyright (c) 2024 Michael
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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--]]
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type Signal<T...> = { [any]: any }
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local function collect<T...>(event: Signal<T...>)
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local storage = {}
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local mt = {}
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local iter = function()
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local n = #storage
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return function()
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if n <= 0 then
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mt.__iter = nil
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return nil
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end
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n -= 1
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return n + 1, unpack(table.remove(storage, 1) :: any)
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end
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end
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local disconnect = event:Connect(function(...)
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table.insert(storage, { ... })
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mt.__iter = iter
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end)
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setmetatable(storage, mt)
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return (storage :: any) :: () -> (number, T...), function()
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disconnect()
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end
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end
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return collect
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