so basically i made an event that checks if the player is crouching. If you are crouching, you get 2 potion effects. This worked, but when i released shift the potion effects still appeared on my gui, though the effects weren't doing anything. How do i fix this?

package com.watizdat.mysterymod.events;

import com.watizdat.mysterymod.MysteryMod;

import net.minecraft.entity.LivingEntity;
import net.minecraft.potion.EffectInstance;
import net.minecraft.potion.Effects;
import net.minecraftforge.client.event.InputUpdateEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;

@Mod.EventBusSubscriber(modid = MysteryMod.MOD_ID, bus = Bus.FORGE)
public class PlayerSneakEvent {
	
	@SubscribeEvent
	public static void playerSneakEvent(InputUpdateEvent event){
		if(event.getMovementInput().sneaking) {
			System.out.println("hello");
			
			LivingEntity livingEntity = event.getEntityLiving();
			
			livingEntity.addPotionEffect(new EffectInstance(Effects.STRENGTH, 20, 2));
			livingEntity.addPotionEffect(new EffectInstance(Effects.SLOWNESS, 20, 2));
		}
	}
}

 

They  have to be applied on the server.

 

Use !world.isRemote to check it. Also check documentation about sides https://mcforge.readthedocs.io/en/latest/concepts/sides/

You need to learn about the concept of sides.

Input events are client side; you cannot do anything that would affect the server (interact with world, blocks, entities, etc).

Instead, subscribe to PlayerTickEvent, and check if the event is fired on the server side and check PlayerEntity#isSneaking for sneaking.

Edited May 26, 20205 yr by DavidM