Armor, elemental resistance and direct damage

Elemental damage equation#

For incoming damage D, each damage-type percentage p and corresponding resistance r contributes D × p × (100 − r). Add the five contributions, then divide by 10,000 using integer division. Direct damage is added separately as floor(D × directPercent ÷100). A normal positive hit that reaches this stage has a minimum result of 1.

Example: 100 damage split 50% physical and 50% fire against 70 physical and 40 fire resistance becomes floor((100×50×30 +100×50×60)÷10,000) =45 damage. Negative resistance increases the relevant damage. Chaos damage is assigned to one randomly chosen standard element for the hit.

Player resistance ceilings#

Armor Ignore and special reductions#

Armor Ignore bypasses all five elemental resistances, not just physical resistance. For a direct player-to-player attack using that path, normal Armor Ignore damage is capped at 35. The separate 70 limit in the code belongs to Death Strike, a retired Ninjitsu system, and is not an enabled player ability.

A barded Swamp Dragon mount absorbs 10% of incoming damage from a nonplayer source, or 20% with exceptional barding, after the resistance calculation; the absorbed amount wears the barding. This does not turn the normal resistance ceiling into a higher displayed resistance.

Armor durability#

Under the current armor branch, the randomly selected armor piece is notified for wear. Its armor-rating number is not subtracted from damage as a second physical reduction; the resistances already provide mitigation. Selection weights are neck 7%, hands 7%, arms 14%, head 15%, legs 22%, chest 35%.

Reflect Physical Damage#

For a living attacker, the ordinary reflected amount is floor(floor(D × physicalPercent × (100 − physicalResistance) / 10000) × Reflect Physical Damage / 100). When the attack ignores armor, this reflection calculation uses zero physical resistance. Reflection is a separate damage call back to the attacker; it is not a subtraction from the incoming hit. Creature abilities can modify this path.