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'm trying to add a bow charge indicator to the game overlay - a green transparent rectangle showing up at full charge.

I'm registerig a Event listener to get the Bow use:

public void load(FMLInitializationEvent event){
public static final BowListener bowListener = new BowListener();
...	
MinecraftForge.EVENT_BUS.register(bowListener);

and I track the bow charge

public class BowListener {

public boolean scopeOn = false;
public float charge;

@SubscribeEvent
public void startUsingBow (PlayerUseItemEvent.Start event){
	if (itemNotBow(event.item.getItem(), true)) return;
	openScope();
	charge = calcCharge(event.item.getItem(), event.duration);
}

@SubscribeEvent
public void continueUsingBow (PlayerUseItemEvent.Tick event){
	if (itemNotBow(event.item.getItem(), false)) return;
	charge = calcCharge(event.item.getItem(), event.duration);
}

@SubscribeEvent
public void stopUsingBow (PlayerUseItemEvent.Stop event){
	if (itemNotBow(event.item.getItem(), false))return;
	cancelScope();
}

private boolean itemNotBow (Item item, boolean start){
	if (item instanceof ItemBow) {
		if (start && scopeOn) {
			FMLLog.info("DDDDDD>>> startUsingBow but scope still active");
		}
		if (!start && !scopeOn) {
			FMLLog.info("DDDDDD>>> UsingBow but scope not active");
		}
		return false;
	}
	if (scopeOn) {
		FMLLog.info("DDDDDD>>> UsingOtherThanBow but scope still active");
	}
	cancelScope();
	return true;
}

private void cancelScope () {
	charge = 0.0F;
	scopeOn = false;
}

private void openScope () {
	scopeOn = true;
}

private float calcCharge (Item item, int duration) {

	int j = item.getMaxItemUseDuration(null) - duration;
        float f = (float)j / 20.0F;

        f = (f * f + f * 2.0F) / 3.0F;

        if ((double)f < 0.1D) return 0.0F;
        if (f > 1.0F) return 1.0F;

        return f;
}
}

 

This works great for most of the servers, BUT if i'm going to certain other servers like shotbow.net, I'm getting called for "impossible" PlayerUseItemEvents.

I have set a BP on the line which holds "FMLLog.info("DDDDDD>>> UsingOtherThanBow but scope still active");" and get following stackdump:

Thread [Client thread] (Suspended (breakpoint at line 45 in BowListener))	
BowListener.itemNotBow(Item, boolean) line: 45	
BowListener.continueUsingBow(PlayerUseItemEvent$Tick) line: 24	
ASMEventHandler_4_BowListener_continueUsingBow_Tick.invoke(Event) line: not available	
ASMEventHandler.invoke(Event) line: 51	
EventBus.post(Event) line: 122	
ForgeEventFactory.onItemUseTick(EntityPlayer, ItemStack, int) line: 149	
EntityOtherPlayerMP(EntityPlayer).onUpdate() line: 281	
EntityOtherPlayerMP.onUpdate() line: 72	
WorldClient(World).updateEntityWithOptionalForce(Entity, boolean) line: 2254	
WorldClient(World).updateEntity(Entity) line: 2214	
WorldClient(World).updateEntities() line: 2064	
Minecraft.runTick() line: 2065	
Minecraft.runGameLoop() line: 997	
Minecraft.run() line: 912	
Main.main(String[]) line: 112	
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]	
NativeMethodAccessorImpl.invoke(Object, Object[]) line: not available	
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: not available	
Method.invoke(Object, Object...) line: not available	
Launch.launch(String[]) line: 134	
Launch.main(String[]) line: 28	

 

and item is an ItemFood:"melon"  :o But I don't have any melons, not in inventory nor in hotbar.  >:(

 

Did someone already observe this?

 

:-[ I'm a noob - I forgot to check the player in the event.  I changed to:

public class BowListener {

public boolean scopeOn = false;
public float charge;

@SubscribeEvent
public void startUsingBow (PlayerUseItemEvent.Start event){

	if (itemNotBow(event)) return;
	scopeOn = true;
	charge = calcCharge(event.item.getItem(), event.duration);
}

@SubscribeEvent
public void continueUsingBow (PlayerUseItemEvent.Tick event){

	if (itemNotBow(event)) return;
	charge = calcCharge(event.item.getItem(), event.duration);
}

@SubscribeEvent
public void stopUsingBow (PlayerUseItemEvent.Stop event){

	if (itemNotBow(event)) return;
	charge = 0.0F;
	scopeOn = false;
}

private boolean itemNotBow (PlayerUseItemEvent event){

	if (event.entityPlayer.getEntityId() != Minecraft.getMinecraft().thePlayer.getEntityId()) return true; // someone other is using item ...
	if (event.item.getItem() instanceof ItemBow) return false;
	return true;
}

private float calcCharge (Item item, int duration) {

	int j = item.getMaxItemUseDuration(null) - duration;
        float f = (float)j / 20.0F;

        f = (f * f + f * 2.0F) / 3.0F;

        if ((double)f < 0.1D) return 0.0F;
        if (f > 1.0F) return 1.0F;

        return f;
}
}

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.