Aeronautics entity damage

Aeronautics Entity Damage is a NeoForge addon for Create Aeronautics that makes moving Sable physics sublevels damage mobs and players when they crash into them.
How it works

The mod uses its own server-side collision check after each Sable physics step. It does not depend on Create’s entity-collision system or replace Sable’s physics collision handling.

For every moving sublevel, the mod:

    Sweeps the sublevel’s bounds between its previous and current positions.
    Finds living entities touched by that swept area.
    Calculates the relative impact speed using the sublevel’s observed movement, Sable’s velocity, and the target’s movement.
    Applies damage when a new contact is detected.

A target is damaged once while it remains in contact. After the sublevel separates from the target, touching it again can cause another hit. Fast-moving sublevels can still hit targets that they pass through between physics steps because the previous and current bounds are swept together.
Damage formula

damage =
  damageMultiplier
  × (mass / massReference)
  × (impactSpeed / speedReference)^speedDamageExponent

Where:

    mass is the Sable sublevel’s mass in kpg.
    impactSpeed is the relative collision speed in blocks per second.
    damageMultiplier controls the overall amount of damage.
    massReference defines the mass that represents one mass unit.
    speedReference defines the speed that represents one speed unit.
    speedDamageExponent controls how strongly speed affects damage.

The default speedDamageExponent is 2, so speed uses quadratic scaling. For example:

    1.0 gives linear speed scaling.
    2.0 gives quadratic speed scaling.
    3.0 makes high-speed impacts scale much more sharply.

Damage is limited by maximumDamage, and impacts below minimumSpeed do not deal damage.
Configuration

Settings are stored in the common NeoForge configuration file:

config/aeronautocsentitydamage-common.toml

Setting     Default     Description
enabled     true     Enables or disables collision damage.
damageMultiplier     1.0     Overall damage multiplier.
massReference     1000.0     Reference sublevel mass in kpg.
speedReference     10.0     Reference impact speed in blocks per second.
speedDamageExponent     2.0     Controls how sharply damage scales with impact speed.
minimumSpeed     0.05     Minimum relative speed required to deal damage.
maximumDamage     40.0     Maximum damage from one impact.