Damage (LWR)

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Terms

Weapon Damage: This is each weapon damage stat configurable in DefaultGameCore.ini file.

Barrel Modifiers: These are effects that modifies damage as it leaves the barrel of the weapon.

Crit Dmg (or Critical Damage): This is how much the Weapon Damage, after being affected by Barrel Modifiers, is increased during a critical hit. The base value is 1.5, and a non-crit is 1.0.

Barrel Damage: This is the Weapon Damage modified by Barrel Modifiers with Crit Dmg and randomization applied.

Target Modifiers: These are effects that modify the damage when it hits the target.

Damage Dealt: This is the damage that a target receives from a damage dealer. It is Barrel Damage modified by Target Modifiers.

DR (or Damage Resistance): This is how much of the damage received is resisted. It involves Flat Damage Resistance, Percent Damage Resistance, and Penetration.

Damage Taken: This is how much damage the unit actually takes. It is the Damage Dealt minus the Damage Resistance.

Damage Calculation

The complete damage formula is:

Damage Taken = (([(((Weapon Damage + Barrel Modifiers) * Crit Dmg) * Randomization ) + Target Modifiers] - Flat DR) * (1 - Percent DR) + Penetration)

Barrel Damage

Damage from the barrel is: Weapon Damage + Barrel Modifiers (e.g. ranger, alloy-jacketed rounds, holo, etc.).

After it leaves the barrel critical damage is applied (anywhere from 1.0x to 2.0x damage) and the damage is randomized by 0.75 to 1.25.

Barrel Damage = (((Weapon Damage + Barrel Modifiers) * Crit Dmg) * Randomization

Damage Dealt

Once it reaches the targets, Target Modifiers are applied (In this order: Shredder-> VPT -> CST -> Fragmentation -> Distortion).

Damage Dealt = Barrel Damage + Target Modifiers

Damage Taken

Then Damage Resistance (DR) is calculated.

Flat DR is applied first, then Percent DR, then Penetration.

Damage Taken = (Damage Dealt - Flat DR) * (1 - Percent DR) + Penetration

Other Modifications

The Damage Taken cannot be reduced below 1 by Damage Resistance (DR) and the Damage Taken can never go above the Damage Dealt.

All damage is stored in an integer form, thus it is always being truncated during each step. This means 5.6 becomes 5, 9.1 becomes 9, and 9.9 becomes 9.

Damage Resistance is not truncated, but the Damage Dealt is truncated after DR is removed. This means that you can have non-integer forms of DR be effective. Example: a 10 damage shot against a unit with 0.1 Flat DR will have a Damage Taken of 9.

Damage Randomization

The purpose of the randomization is to pick a integer value between roughly 0.75 and 1.25 of the Barrel Damage.

The randomization works in integer values only. A die of size 2 * Barrel Damage + 2 is rolled, where each integer point of Barrel Damage is assigned up to four possible results on that die (except for the highest and lowest values, which may be assigned less). The weighted average of all possible results equals the Barrel Damage.

Explosive Damage

Each unit damaged by explosive damage has the Barrel Damage reduced based on distance from the center. Damage falls as the square of the radius, down to 50% at the edge.

An Example

A soldier with an Assault Carbine and the Ranger perk fires at a Drone

The Assault Carbine has 4 Weapon Damage, receives +1 damage as a Barrel Modifier from Ranger, and has no innate Penetration.

The Drone has 1 Flat DR and is Hardened (30 Percent DR).

The Drone is not Shredded and does not have Distortion. The soldier does not have VPT or CST, and Fragmentation does not apply to rifles, so there are no Target Modifiers to the damage.

The shot does not 'Crit' so Crit Dmg is 1.0 and the Randomization is 1.0.

Damage Dealt = (([(((Weapon Damage + Barrel Modifiers) * Crit Dmg) * Randomization ) + Target Modifiers] - Flat DR) * (1 - Percent DR) + Penetration)

Damage Dealt = ((((((4 + 1) * 1.0) * 1.0) + 0 - 1) * (1 - 0.3) + 0) = 2.8 = 2 Damage Taken