Added: - void NPC:SetActivity( ACT_* ) - void NPC:ResetIdealActivity( ACT_* ) - bool NPC:IsGoalActive() - void NPC:ClearBlockingEntity() - NAV_* NPC:GetNavType() - void NPC:SetNavType( NAV_* ) - NAV_NONE, NAV_GROUND, NAV_JUMP, NAV_FLY, NAV_CLIMB