# Periodic aura hits (`src/mods/aurahits.cpp`)

Rebalancing request (user, 2026-10-15): "Blicke wie Klingen" (art 0x3f8,
`GUI_MOVE_KLINGENBLICK`) hit only one enemy per tick; it should hit all
enemies in range.

## What the game does (measured with a hit log, 2026-10-15)

The aura gives the hero an effect of kind 0x12 (value 0x445f in the test).
Its hits reach the enemies as `cEvent_creature` 5 (attacker id at +8, the
damage at +0x18.. in one of four damage-type slots, chosen at random), sent
from `0x56323d`, one enemy about once per second.

Code (creature arts update, branch `0x562f08`, only for effects of kind 0x12
of the local player's creature):

- timer at effect +8 (a vector holding one int, ms); every 1000 ms:
- walk the creatures near the player (`0xad1c60`, 8 bytes each, count
  `0xad1b48`); a creature within `(cCreatureArts +0x56 + 20) * 10` of the
  owner (`cCreature::DistanceTo` `0x536f20`) becomes the target if there is
  none yet, otherwise replaces it with 1/3 chance;
- player heroes as targets go through PvP checks (`0x4d4be0`);
- the hit: `cEvent_creature` 5 built on the stack, sent with the target's
  `ReceiveOrder` (vf18).

## The mod

`mov eax, [ecx]; call [eax+18h]` at `0x56323b` becomes a call of
`HitAllInRange` (via a thunk passing ebp = cCreatureArts and ebx = the
effect's offset): the chosen enemy gets its hit, then every other living
creature of the nearby list within the same range gets a copy of the same
hit. Player heroes are skipped (they need the PvP checks). Applies to every
effect of kind 0x12, i.e. by behaviour, not by art id.

## Damage type and life leech (2026-10-15)

- The game puts the aura's value into one of the four damage slots at
  random (physical, fire, magic, poison), so a quarter of the ticks poisoned;
  the mod makes every aura hit physical (user's choice).
- Life leech, its beam and sound are applied by the damage code (`0x56aff0`,
  leech block `0x5707a4`..`0x570a88`: property 0x349 x difficulty factor x
  damage x distance falloff, capped at max health) for the hit's attacker,
  order +0x1c. Weapon hits carry the hero's id there, enemy hits the enemy's,
  aura hits 0, so they never leeched. The mod sets it to the aura's owner.