Jump to content
View in the app

A better way to browse. Learn more.

Forge Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Featured Replies

Posted

I want to check if the default move back key is double tapped. I've tried looking into how Minecraft handles sprinting but I can't find the actual check for a double tap.

 

Thanks for your help!

I've done similar for dashing side to side. I set up a tick handler where I detect if the player has pressed the movement key once, and if it's pressed again within a certain number of ticks, then execute. Use the input handler event, and send a packet to server to do the logic there.

  • Author
28 minutes ago, Turtledove said:

I've done similar for dashing side to side. I set up a tick handler where I detect if the player has pressed the movement key once, and if it's pressed again within a certain number of ticks, then execute. Use the input handler event, and send a packet to server to do the logic there.

Thanks for the reply!

  • Author

Is anyone aware of an alternate method to this? I'd imagine it works but I'm getting some odd behaviour in using both onKeyPressed() and isKeyDown() whilst using a boolean flag to make it only fire once. I've tried this in KeyInputEvent, ClientTickEvent and PlayerTickEvent. The issue is that when I hold down the key it will fire randomly at times and act as a double press.

 

Edit: I tried onKeyPressed() by itself, and seperately tried isKeyDown() whilst using a boolean flag.

Edited by squidlex
Clarification

  • Author
On 4/30/2020 at 4:43 PM, Turtledove said:

I've done similar for dashing side to side. I set up a tick handler where I detect if the player has pressed the movement key once, and if it's pressed again within a certain number of ticks, then execute. Use the input handler event, and send a packet to server to do the logic there.

Hi again, sorry to be a pain but do you have any source code I can look at? I'm having some issues with this firing multiple times. No worries if not :)

The reason this happens is if you hold the key for long enough, it starts to send repeated keydown inputs. So that's why the boolean is necessary.

 

like if i held down k for long it does this:

kkkkkkkkkkkkkkkkkkkkkkkkk

  • Author
2 hours ago, superminerJG said:

The reason this happens is if you hold the key for long enough, it starts to send repeated keydown inputs. So that's why the boolean is necessary.

 

like if i held down k for long it does this:

kkkkkkkkkkkkkkkkkkkkkkkkk

Thanks for the replying, how did you go about implementing your boolean? I tried using one as so

if (Minecraft.getInstance().gameSettings.keyBindLeft.isKeyPressed && notPressed) {
				if (timer > 0) {
					timer = 0;
					// Do something from double tap
				} else {
				timer = 10;			
		}
 			notPressed = false;
	} else if(!Minecraft.getInstance().gameSettings.keyBindLeft.isKeyPressed) {
	notPressed = true; }
				


This however never fired.

class Ticker extends ITickable{
  static int timer = 0;
  static boolean pressed = false;
  static boolean doublePressed = false;
  static void tick() {
    if (Minecraft.getInstance().gameSettings.keyBindLeft.isKeyDown()) {
      if (!pressed) {
        if (timer < 8) {
          doublePressed = true;
        }
        timer = 10;
        pressed = true;
      }
      if (doublePressed) {
        //do stuff
      }
    }
    else {
      pressed = false;
      if (doublePressed) {
        doublePressed = false;
        timer = 0;
      }
    }
    timer--;
  }
}

I honestly don't know if this will work, but this is how I think it should work. Obviously you can improve on this, but the idea is to make sure that the second press doesn't happen too soon.

  • Author
14 hours ago, superminerJG said:

class Ticker extends ITickable{
  static int timer = 0;
  static boolean pressed = false;
  static boolean doublePressed = false;
  static void tick() {
    if (Minecraft.getInstance().gameSettings.keyBindLeft.isKeyDown()) {
      if (!pressed) {
        if (timer < 8) {
          doublePressed = true;
        }
        timer = 10;
        pressed = true;
      }
      if (doublePressed) {
        //do stuff
      }
    }
    else {
      pressed = false;
      if (doublePressed) {
        doublePressed = false;
        timer = 0;
      }
    }
    timer--;
  }
}

I honestly don't know if this will work, but this is how I think it should work. Obviously you can improve on this, but the idea is to make sure that the second press doesn't happen too soon.

Thanks for the code I really appreciate it! For some reason even with this code, which I agree should definitely work, it constantly outputs that it has been double pressed. Thanks for your help though :)

  • 7 months later...

I think I figured It Out. (note: in my mod, I added my own methods to detect inputs, so the code may need to be modified)

 

This method only runs the key detection function once, than waits for the key to be released before allowing it to run again. This means it should not return a double press if the user holds the key down. It also will not trigger, if the key is double tapped too slow (so the user pressing the key once, than pressing it again 10 minutes later, will Not trigger a double tap).

 

long startTime = System.currentTimeMillis();
boolean moveKeyPressed = false;
boolean keyEnabled = false;

@SubscribeEvent
public void onMove(InputUpdateEvent event){
  boolean keyPressed = event.getMovementInput().backKeyDown;
  
  if(!keyEnabled){
    if(!moveKeyPressed && keyPressed){
      long now = System.currentTimeMillis();
      
      if(now > startTime + 300){
      	startTime = now;
      }else{
      	keyEnabled = true;
        // do stuff on double tap...
      }
      
      moveKeyPressed = true;
    }else{ // optional
      if(!moveKeyPressed && keyPressed && System.currentTimeMillis() > startTime + 300){
        keyEnabled = false;
        // do stuff to cancel double tap action if key is pressed again...
        // useful if you need to allow the player to override the keypress and cancel the double tap action
      }
    }
    
    // detect key release
    if(!keyPressed){
      moveKeyPressed = false;
    }
  }
}

 

Edited by SwiftNinjaPro
Modified math a bit

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

Important Information

By using this site, you agree to our Terms of Use.

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.