Roblox-Elevator-Game/src/shared/Client/KeyBinds.lua

--I couldn't get ContextActionService to work how i wanted it to

local BindLink = {}
BindLink.__index = BindLink

local UIS = game:GetService("UserInputService")

export type KeyBindMap = {
	[string]: {
		[Enum.KeyCode]: () -> ()
	}
}
export type InputBegan = RBXScriptConnection
export type InputEnded = RBXScriptConnection

type CallbackFunction = () -> ()

function BindLink.constructor(gameProcessing: boolean) --Allow multiple bindings of the same keys, no overwrites
	type BindConstructor = {
		BindMap: KeyBindMap,
		InputBegan: InputBegan,
		InputEnded: InputEnded
	}

	local self = {} :: BindConstructor
	self.BindMap = {
		Began = {},
		Ended = {}
	}
	
	--Return these for convenience
	self.InputBegan = UIS.InputBegan:Connect(function(input, gameProcessedEvent)
		if gameProcessing and gameProcessedEvent or not gameProcessedEvent then
			local switch = self.BindMap.Began[input.KeyCode]
			if switch then
				switch()
			else
				--switch.default()
			end
		end
	end)
	self.InputEnded = UIS.InputEnded:Connect(function(input, gameProcessedEvent)
		if gameProcessing and gameProcessedEvent or not gameProcessedEvent then
			local switch = self.BindMap.Ended[input.KeyCode]
			if switch then
				switch()
			else
				--switch.default()
			end
		end
	end)

	return setmetatable(self, BindLink)
end

function BindLink:AddInputBegan(Keys: {Enum.KeyCode}, Callback: CallbackFunction)
	for i = 1, #Keys do
		local Key = Keys[i]

		if self.BindMap.Began[Key] then
			warn(`Key >began< "{Key.Name}" is already binded on this KeyBind map`, debug.traceback())
		end
		self.BindMap.Began[Key] = Callback
	end
end

function BindLink:AddInputEnded(Keys: {Enum.KeyCode}, Callback: CallbackFunction)
	for i = 1, #Keys do
		local Key = Keys[i]

		if self.BindMap.Ended[Key] then
			warn(`Key >ended< "{Key.Name}" is already binded on this KeyBind map`, debug.traceback())
		end
		self.BindMap.Ended[Key] = Callback
	end
end

function BindLink:KeyHold(Key: Enum.KeyCode): boolean
	return UIS:IsKeyDown(Key)
end

return BindLink