[Patch-Fix] Mage Water Elemental SpellCheckCast

[e000]

commit 735627ff12912c1eaf42b99833e1ff8de8b7a3ae
Author: e <e@cacaw.net>
Date:   Mon Aug 13 04:15:35 2012 +0100

    [BugFix, Mage (Summon Water Elemental)] Summon Water Elemental will now correctly fail if you already have a summoned pet. Before, it would fail and set the cooldown if you tried to cast it while you had another pet out, now it will just fail with the proper message.

https://gist.github.com/ef10d4aa65286e5a9f75

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[Star-lion]

i beleive if its dead you should be able to summon a new one

[e000]

I agree, but I'm not sure how to implement that properly.

[e000]

Should really despawn the pet when it dies, rather than despawning when castes again.

[callmephil]

may help
// Despawn Water Elemental Before summoning a new one.
if (Creature* pet = caster->ToPlayer()->GetGuardianPet())
pet->DespawnOrUnsummon();

[Aokromes]

If the fix here is valid, plz open a PR.