@SubscribeEvent
public void DoubleDrop(LivingDropsEvent e){
	if(e.source.getEntity() instanceof EntityPlayer){
		EntityPlayer p =(EntityPlayer)e.source.getEntity(); 
		if(p.isEntityAlive()){
		if(p.getActivePotionEffect(org.MawManager.MawStory.Potion.Register.doubledrop)!=null){
		if(e.drops.size()!=0){
			e.drops.addAll(e.drops);
			p.addChatComponentMessage(new ChatComponentText(StatCollector.translateToLocal("doubledrop.text1")));
		}
		}
		}
		}

I try to do like this,but it didn't work.

How to set the drops twice as long,is there any other way?

Where are you registering this event on the event bus? What does it do when you run it? Do you ever make it to that inside condition where you're attempting to add the drops? Does the fml-client-latest.log say anything?

 

e.drops.addAll(e.drops);

I don't think this will have any effect.

1 hour ago, Ugdhar said:

Where are you registering this event on the event bus? What does it do when you run it? Do you ever make it to that inside condition where you're attempting to add the drops? Does the fml-client-latest.log say anything?

Yes,I had registered this  event on the event bus,and Item drops number has not changed (I say this, because  their number is odd number)

And if I try to add something,like "apple":

SubscribeEvent
public void DoubleDrop(LivingDropsEvent e){
	if(e.source.getEntity() instanceof EntityPlayer){
		EntityPlayer p =(EntityPlayer)e.source.getEntity(); 
		if(p.isEntityAlive()){
		if(p.getActivePotionEffect(org.MawManager.MawStory.Potion.Register.doubledrop)!=null){
		if(e.drops.size()!=0){
			e.drops.addAll(e.drops);
			//Look here
			e.drops.add(1, new EntityItem(e.entity.worldObj,e.entity.posX,e.entity.posY,e.entity.posZ,new ItemStack(Items.apple,1)));
			//
			p.addChatComponentMessage(new ChatComponentText(StatCollector.translateToLocal("doubledrop.text1")));
		}
		}
		}
		}
		}

 

And it is working,but the normal drops did not change.(three apple,theree chicken)

 

Thank you for answer my problem.

12 minutes ago, Alexiy said:

 

e.drops.addAll(e.drops);

I don't think this will have any effect.

What should I do?

Thank you .

(or you can set each stack's stacksize to double: virtually all drops are done via 1-size stacks, even in the case of dropping 3 or 5 items)

Edited November 7, 20177 yr by Draco18s

6 hours ago, themaw said:

What should I do?

Thank you .

You can copy the itemstacks from the entity items in the list, then create new entity items for copied drops, then add those to the list.

Thank you for your attention