Gen7Data/Scripts/Moves/Struggle.as

namespace Gen7 {
    [Move effect=Struggle]
    class Struggle : PkmnScript {
        void ChangeEffectiveness(ExecutingMove@, Pokemon@, uint8, float &inout eff) override {
            eff = 1;
        }

        void IsInvulnerable(ExecutingMove@, Pokemon@, bool &inout invul) override {
            invul = false;
        }

        void ModifyNumberOfHits(MoveTurnChoice@, uint8 &inout hitcount) override {
            hitcount = 1;
        }

        void OnSecondaryEffect(ExecutingMove@ attack, Pokemon@, uint8) override {
            auto damage = uint(attack.User.MaxHealth / 4);
            if (damage == 0){
                damage  = 1;
            }
            attack.User.Damage(damage, DamageSource::Struggle);
        }
    };
}