[SOLVED] Forge 1.20 Custom Potion Effects

[AndroPupsi]

Hello, new coder and first time posting, sorry if I get stuff wrong

Been having a really difficult time trying to figure out this potion effect. I want to give a potion effect that denies the wither effect on the player. I've looked over a lot of different tutorials, and through some other mods and made something that sort of works but it was based on applyEffectTick and the players would still take a tick of damage before the potion effect kicked in.

When looking up other ways to do this I saw there was like the PotionEvent but whenever I try to use it, I get errors of how it cannot be defined.

This is my code right now that doesn't work

package io.github.AndroPups.tsmp_models.effect;

import net.minecraft.world.effect.MobEffect;
import net.minecraft.world.effect.MobEffectCategory;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.LivingEntity;

public class NoWitherEffect extends MobEffect {

    public NoWitherEffect(MobEffectCategory mobEffectCategory, int color) {
        super(mobEffectCategory.BENEFICIAL, color);
    }

    public static void onPotionAdded(PotionEvent.PotionAddedEvent event) {
        LivingEntity entity = event.getEntityLiving();
        MobEffect potionEffect = event.getPotionEffect().getEffect();
        if (potionEffect == MobEffects.WITHER); {
            entity.removeEffect(MobEffects.WITHER);
        }

    }

    @Override
    public boolean isDurationEffectTick(int duration, int amplifier) {
        return true;
    }
    
}

And this code works but occasionally still applies damage because of ticking effect.

 

package io.github.AndroPups.tsmp_models.effect;

import net.minecraft.world.effect.MobEffect;
import net.minecraft.world.effect.MobEffectCategory;
import net.minecraft.world.effect.MobEffects;
import net.minecraft.world.entity.LivingEntity;

public class NoWitherEffect extends MobEffect {

    public NoWitherEffect(MobEffectCategory mobEffectCategory, int color) {
        super(mobEffectCategory.BENEFICIAL, color);
    }

    @Override
    public void applyEffectTick(LivingEntity pLivingEntity, int pAmplifier) {
        if (!pLivingEntity.level().isClientSide()) {
            if (pLivingEntity.hasEffect(MobEffects.WITHER)); {
                pLivingEntity.getEffect(MobEffects.WITHER);
            }
        }
    }

    @Override
    public boolean isDurationEffectTick(int duration, int amplifier) {
        return true;
    }
    
}

I've tried to see if PotionEvent was removed from recent Forge updates but can't really find any information on it. Any information at all would be helpful! Thanks!
 

EDIT:

I found a solution, instead of trying to stop the effects I instead made an event that applies effects to the player in the water then made a potion that when it's active the water event would just skip the negative effects. A lot more simpler to use than my round about code. Works like a dream.

 

Edited June 2 by AndroPupsi
Forgot to Edit Code to add colors, New edit to post solution