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[1.13.2] How to detect when a certain item is dropped?


ketchup_god
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Subscribe to the ItemTossEvent.

Use ItemEvent#getEntityItem (ItemEvent is the super class of ItemTossEvent) to get the EntityItem thrown.

Some tips:

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Modder Support:

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1. Do not follow tutorials on YouTube, especially TechnoVision (previously called Loremaster) and HarryTalks, due to their promotion of bad practice and usage of outdated code.

2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

4. 

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Programming via Eclipse's hotfixes will get you nowhere

5. Learn to use your IDE, especially the debugger.

6.

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The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

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1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

 

 

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Okay, so how do you do that exactly?

 

I have been trying to make it work for a while now, and it still won't do anything. Here's my current code to tell the player when they drop anything

@Mod(Reference.MODID)
public class DroppedItem
{
	@SubscribeEvent
	public void onItemTossEvent(ItemTossEvent itemTossEvent) {
		Minecraft.getInstance().player.sendChatMessage("you dropped something");
	}
}

 

Edited by ketchup_god
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31 minutes ago, ketchup_god said:

@Mod(Reference.MODID) public class DroppedItem

The annotation on an event bus subscriber should be @EventBusSubscriber.

Also make the onItemTossEvent static (refer to this picture for more explanation on when event bus subscriber should be static).

 

31 minutes ago, ketchup_god said:

Minecraft.getInstance().player.sendChatMessage("you dropped something");

That is going to crash on a server. Hopefully you are only using it temporarily for debugging purposes.

Edited by DavidM

Some tips:

Spoiler

Modder Support:

Spoiler

1. Do not follow tutorials on YouTube, especially TechnoVision (previously called Loremaster) and HarryTalks, due to their promotion of bad practice and usage of outdated code.

2. Always post your code.

3. Never copy and paste code. You won't learn anything from doing that.

4. 

Quote

Programming via Eclipse's hotfixes will get you nowhere

5. Learn to use your IDE, especially the debugger.

6.

Quote

The "picture that's worth 1000 words" only works if there's an obvious problem or a freehand red circle around it.

Support & Bug Reports:

Spoiler

1. Read the EAQ before asking for help. Remember to provide the appropriate log(s).

2. Versions below 1.11 are no longer supported due to their age. Update to a modern version of Minecraft to receive support.

 

 

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