Input System

--// All made by Sten :)

--// Services
local UserInputService = game:GetService("UserInputService")

--// Blocks inputs that will break the input system if enabled
local blocked_input = {
	Enum.UserInputType.MouseMovement,
	Enum.UserInputType.Focus,
}

--// Combines multiple arrays into one Array
local function CombineArray(...)
    local table = {}

    for _, array in next, {...} do
        for i, v in next, array do
            table[i] = v
        end
    end

    return table
end

--// Module
local keybinds = {} do
	keybinds.keys_down = {}
	keybinds.keybinded = {}

	--// Keybind remover
    function keybinds.AddKeybind(_keycodes, _callback, _args, _settings)
		local bind = {}

		_args = _args or {}
		_settings = _settings or {}

		function bind.Remove()
			keybinds.keybinded[bind.index] = nil
		end

		bind.index = #keybinds.keybinded + 1
		bind.settgins = _settings
		bind.keycodes = _keycodes
		bind.callback = _callback
		bind.args = _args

		keybinds.keybinded[bind.index] = {
			_keycodes,
			_callback,
			_args,
			_settings
		}

		return bind
    end

	--// Activates on input
	function Input(_bool, _input, _processedevent)
		local current_key = (_input.UserInputType == Enum.UserInputType.Keyboard and _input.KeyCode) or (not table.find(blocked_input, _input.UserInputType) and _input.UserInputType) or nil

		if _processedevent or current_key == nil then
			return
		end

		current_key = tostring(current_key):split(".")[3]

		keybinds.keys_down[current_key] = _bool

		if #keybinds.keybinded == 0 then
			return
		end

		for _, bind in next, keybinds.keybinded do
			local can_activate = true

			for key, value in next, keybinds.keys_down do
				if (value == true and bind[4].singular and not table.find(bind[1], key)) or (value == false and table.find(bind[1], key)) then
					can_activate = false
					break
				end
			end

			if not can_activate or not table.find(bind[1], current_key) then
				continue
			end

			--// Activates callback
			task.spawn(bind[2], unpack(bind[3]))
		end
	end

	UserInputService.InputBegan:Connect(function(_input, _processedevent)
		Input(true, _input, _processedevent)
	end)

	UserInputService.InputEnded:Connect(function(_input, _processedevent)
		Input(false, _input, _processedevent)
	end)

	do -- Setup
		local inputs = CombineArray(Enum.KeyCode:GetEnumItems(), Enum.UserInputType:GetEnumItems())

		for _, key in next, inputs do
			key = tostring(key):split(".")[3]
			keybinds.keys_down[key] = false
		end
	end
end

return keybinds