编辑“太空战”（章节）

== Ship disengagement ==
Any ship that takes hull damage while already below 50% hull points has a chance to disengage from battle, scaled with the amount of damage inflicted. A ship that disengages will instantly leave the battle and rejoin the fleet at the end, until then appearing in the combat interface with a flag icon indicating that it has disengaged. If a fleet contains only disengaged ships it will make an emergency retreat.

Ships will never disengage if the owner uses the No Retreat War Doctrine policy. The presence of a black hole reduces disengage chance by half.

Colossi and Juggernauts cannot disengage.

The chance for a ship to disengage after a hit is determined by:

<math>\text{chance} = \frac{\text{damage}}{\text{hull}} \times 1.5 \times \text{friendly} \times \text{ship multiplier}</math>

damage: Amount of damage the hit inflicted<br>
hull: The ship's maximum hull points<br>
friendly: 1.25 while in friendly space, 1 otherwise<br>
ship multiplier: Ship type multiplier

{| class="mildtable"
|-
! Ship multiplier !! Ship type
|-
| 2 || Science Ship
|-
| 1.5 || Destroyer, Cruiser, Transport Ship
|-
| 1.25 || Battleship, Titan
|-
| 1 || Corvette, Construction Ship
|-
| 0.5 || Colony Ship
|-
| 0.2 || Meteor Colony Ship
|}

The chance for ships to disengage can also be affected by the following modifiers:
{| class="mildtable"
|-
! Source !! Modifier
|-
| {{icon|policy}} ''Hit and Run'' War Doctrine policy || {{green|+0.33}}
|-
| {{icon|trickster}} Trickster admiral trait || {{green|+0.25}}
|-
| {{icon|erudite}} Erudite admiral trait || {{green|+0.1}}
|-
| [[File:sb communication jammer.png|24px]] Communications Jammer starbase building || {{red|-0.2}}
|-
| [[File:Subspace Snare.png|24px]] Subspace Snare titan aura || {{red|-0.2}}
|-
| {{icon|hell's heart}} Hell's Heart admiral trait || {{red|-0.33}}
|-
| {{icon|unyielding}} Unyielding admiral trait || {{red|-0.33}}
|}

As an example, if a battleship with 1300 of 3000 hull points left took a 300 damage hit while under the influnce of an admiral with the Erudite trait (+10%) and a hostile Subspace Snare titan aura (-20%) while outside of friendly space:

<math>0.16875 = \frac{300}{3000} \times 1.5 \times 1 \times 1.25 \times (1 + 0.1 + -0.2)</math>

The battleship would have a 16.875% chance to disengage after the hit

If this battleship were to instead take 300 damage hits until it either disengaged or was destroyed on the 5th hit, it would have a likelihood of 52.255% to disengage before destruction.

<math>0.52255 = 1 - (1 - 0.16875)^4</math>