Wake up the whole pack of Gargoyles when disturbed

[StephenCWills]

Not tested, but this looks like the right place to reintroduce the logic.

This resolves #7448

[StephenCWills]

I'm testing now, and this doesn't work right. Switching to draft.

[StephenCWills]

The trick is that GroupUnity() only gets called when monster.mode transitions from one state to another.

Gargoyles start with MonsterMode::SpecialMeleeAttack and MFLAG_ALLOW_SPECIAL. This particular combination makes them stay in stone form until they're disturbed by the player. When they are awoken, the MFLAG_ALLOW_SPECIAL flag is removed. If they ever go back into stone form, they will be given MFLAG_ALLOW_SPECIAL with MonsterMode::Heal. That mode will eventually wake them when their hp is full.

Since GroupUnity() only gets called when monster.mode transitions, the first time it gets called is when the Gargoyle first transitions from MonsterMode::SpecialMeleeAttack to MonsterMode::Stand. You can see this as a delay, where the first monster that wakes up will wake up the leader at the end of his first animation, then the leader will wake up the pack at the end of his first animation.

On the other hand, FollowTheLeader() gets called unconditionally on every frame. We can't move the logic to this function unless we explicitly check whether the leader is dormant or not. Note that the behavior is slightly different from vanilla. If you wake up the leader, all the other Gargoyles will immediately wake up with him. If you wake up a minion, the rest of the pack will wake up simultaneously at the end of its first animation.

[StephenCWills]

I should probably mention I consider this ready now, in case it wasn't clear.