training dummy q

class npc_tournament_training_dummy : public CreatureScript
{
    public:
        npc_tournament_training_dummy(): CreatureScript("npc_tournament_training_dummy"){}

        struct npc_tournament_training_dummyAI : Scripted_NoMovementAI
        {
            npc_tournament_training_dummyAI(Creature* creature) : Scripted_NoMovementAI(creature) {}

            void Reset()
            {
                me->SetControlled(true, UNIT_STATE_STUNNED);
                me->ApplySpellImmune(0, IMMUNITY_EFFECT, SPELL_EFFECT_KNOCK_BACK, true);
            }

            void EnterEvadeMode()
            {
                if (!_EnterEvadeMode())
                    return;

                Reset();
            }

            void SpellHit(Unit* caster, SpellInfo const* spell)
            {
                switch (spellInfo->Id)
                {
                    case 2098:      //rogue - evicerate
                        case 5143:      //mage - arcane missles
                    case 348:       //warlock - immolate
                    case 100:       //warrior - charge
                    case 56641:     //hunter - steady shoot
                    case 589:       //priest - Shadow Word: Pain
                        caster->KilledMonsterCredit(44175, 0);
                    break;
                }
            }
        };

        CreatureAI* GetAI(Creature* creature) const
        {
            return new npc_tournament_training_dummyAI(creature);
        }
};