koobas.hobune.stream
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How to navigate through UI buttons without keyboard arrows?
Hi all,
I have some buttons in a UI canvas. The navigation through the UI works fine with the keyboard Arrows.
Now i am trying to handle the navigation with another Input device, that cannot be recognized by Unity automatically. So i just have a boolean that becomes true if i click "Up" or "Right" with this device.
Is it possible to call the same navigation / move -function like the Left/Right/Up/Down Arrows on the keyboard but just for a boolean input?
So what i want is:
if (Device.boolUp == true)
{
//navigate left in UI
}
and so on for Left / Right / Down. Thanks for your Help!
@IBXCODECAT Thanks for your answer!
By chance i found this code:
EventSystem.current.SetSelectedGameObject(button.FindSelectableOnDown().gameObject);
I think this FindSelectableOnDown() is what i was searching for. So probably when i first ask for the actually selected button and then tell the system to select the down button it could hopefully work.
Unity uses the event system (that is automatically created when creating UI or a canvas.) In the event system there should be references to input axis. Try changing the axis. Unfortunately you can not do this through code, if you want this to work at run-time try making your own input manager.
public static class GameInputManager
{
static Dictionary<string, KeyCode> keyMapping;
static string[] keyMaps = new string[6]
{
"Attack",
"Block",
"Forward",
"Backward",
"Left",
"Right"
};
static KeyCode[] defaults = new KeyCode[6]
{
KeyCode.Q,
KeyCode.E,
KeyCode.W,
KeyCode.S,
KeyCode.A,
KeyCode.D
};
static GameInputManager()
{
InitializeDictionary();
}
private static void InitializeDictionary()
{
keyMapping = new Dictionary<string, KeyCode>();
for(int i=0;i<keyMaps.Length;++i)
{
keyMapping.Add(keyMaps[i], defaults[i]);
}
}
public static void SetKeyMap(string keyMap,KeyCode key)
{
if (!keyMapping.ContainsKey(keyMap))
throw new ArgumentException("Invalid KeyMap in SetKeyMap: " + keyMap);
keyMapping[keyMap] = key;
}
public static bool GetKeyDown(string keyMap)
{
return Input.GetKeyDown(keyMapping[keyMap]);
}
}
You could use it like this:
void Update()
{
if (GameInputManager.GetKeyDown("attack"))
{
//Do stuff
}
}
instead of this:
if(Input.GetKeyDown(Keycode.W)
{
//Do Stuff
}
Do stuff would be what you wanted to happen when you gave the input
Also you could create multiple 'inputs' in the default input manager and switch between them.
switch(inputMethod)
{
case 1:
//Use axis 1
break;
case 2:
//Use axis 2
break;
case 3:
//Use axis 3
break;
default:
//Axis invalid
}
