src/game/java/net/minecraft/world/effect/WitherMobEffect.java

package net.minecraft.world.effect;

import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.entity.LivingEntity;

public class WitherMobEffect extends MobEffect {
    public static final int DAMAGE_INTERVAL = 40;

    protected WitherMobEffect(MobEffectCategory p_300352_, int p_298007_) {
        super(p_300352_, p_298007_);
    }

    @Override
    public boolean applyEffectTick(ServerLevel p_365526_, LivingEntity p_299783_, int p_298645_) {
        p_299783_.hurtServer(p_365526_, p_299783_.damageSources().wither(), 1.0F);
        return true;
    }

    @Override
    public boolean shouldApplyEffectTickThisTick(int p_299625_, int p_297396_) {
        int i = 40 >> p_297396_;
        return i > 0 ? p_299625_ % i == 0 : true;
    }
}