How can I detect multiple keys pressed at the same time?
I am creating a driving game that requires movement at all times. However, I don't understand why, in this script, only one button press is registering at a time. For example, when I hold W and then A simultaneously, the car stops moving forwards and turns left.
function onKeyDown(inputObject, gameProcessedEvent)
if inputObject.KeyCode == Enum.KeyCode.W then
turn.AngularVelocity = Vector3.new(0,0,0)
end
if inputObject.KeyCode == Enum.KeyCode.S then
turn.AngularVelocity = Vector3.new(0,0,0)
end
if inputObject.KeyCode == Enum.KeyCode.A then
turn.AngularVelocity = Vector3.new(0,0,0)
end
if inputObject.KeyCode == Enum.KeyCode.D then
turn.AngularVelocity = Vector3.new(0,0,0)
end
end
input.InputBegan:connect(onKeyUp)
1 answer
The event that you have hooked up to the function is the 'InputEnded' event, which fires when a key (or input medium) is finished with. They will register individually as that's how it's being programmed. To deal with multiple keys being pressed down, you'll have to use check if keys are pressed.
While I'm not sure as to how you're going to program this, you can use the following functions to your advantage: http://wiki.roblox.com/index.php?title=API:Class/UserInputService/GetKeysPressed
http://wiki.roblox.com/index.php?title=API:Class/UserInputService/IsKeyDown
http://wiki.roblox.com/index.php?title=API:Class/UserInputService/InputBegan
http://wiki.roblox.com/index.php?title=API:Class/UserInputService/InputChanged
E.g. (out of your context) if you wanted to run a function whenever A and C are simultaneously pressed:
function AC()
-- ...
end
function onKeyDown(...) -- these are just basic outlines, but you'll get the point
if A is being pressed and input:IsKeyDown(the C key) then
AC()
elseif C is being pressed and input:IsKeyDown(the A key) then -- Yes, I know, not efficient but this is to demonstrate the kind of thing you could do
AC()
end
end
input.InputAdded:connect(onKeyDown)
Hope I've helped you in some way :)