silphius/resources/magic-swords/collision-start.js

const playerEntity = ecs.lookupPlayerEntity(entity.Owned.owner);
if (playerEntity !== other && other.Vulnerable) {
  const magnitude = Math.floor(Math.random() * 2)
  other.Vulnerable.damage({
    amount: -Math.floor(
      Math.pow(10, magnitude)
      + Math.random() * (Math.pow(10, magnitude + 1) - Math.pow(10, magnitude)),
    ),
    position: other.Position.toJSON(),
    type: other.Vulnerable.Types.PAIN,
  })
}