local buttonJustPressed = playdate.buttonJustPressed

---@type InputState
local inputState = {}

inputSystem = filteredSystem("input", { canReceiveInput = T.marker }, function(e, _, system)
    e.inputState = inputState
    system.world:addEntity(e)
end)

function inputSystem:preProcess()
    inputState.upJustPressed = buttonJustPressed(playdate.kButtonUp)
    inputState.downJustPressed = buttonJustPressed(playdate.kButtonDown)
    inputState.rightJustPressed = buttonJustPressed(playdate.kButtonRight)
    inputState.leftJustPressed = buttonJustPressed(playdate.kButtonLeft)
    inputState.aJustPressed = buttonJustPressed(playdate.kButtonA)
    inputState.bJustPressed = buttonJustPressed(playdate.kButtonB)

    inputState.receivedInputThisFrame =
        inputState.upJustPressed
        or inputState.downJustPressed
        or inputState.rightJustPressed
        or inputState.leftJustPressed
        or inputState.aJustPressed
        or inputState.bJustPressed
end