Destruction
If the Structure of an object becomes zero, object will be destroyed. When an object is destroyed, the gravitational wave will destroy the fleets holding the object as well as the destroying fleet. If there was a battle on the destroyed object - all the participants of the battle would die.

After a planet destruction gravity wave is appeared. It destroys all satellites on the planet coordinates as well as fleets standing and in flight on local coordinates, creating 25% debris. The gravitational wave does not destroy the OPS under the control of pirates and insectoid entities in the jump. If the planet was destroyed asteroid can be created with the chance equal [diameter of former planet] / 250, with the number of fields equal to [diameter of former planet] / 400 + (from 1 to 3).

When a satellite is destroyed, debris is formed containing random amounts of metal and minerals. Average amount of metal for moons and moon-based satellites is [50 000 * diameter of the moon from which the satellite is made], average amount of minerals is half of that. For comets average amount of metal is [10 000 * diameter of the comet], average amount of minerals is 5 times that. Minimum and maximum debris values are ±50% from the average. 25% of the metal and mineral cost of everything that was on the satellite (buildings, defense, fleet) is also added to debris.
For example, you destroyed a station with a diameter of 30 km. The moon from which the station was created was 10 times larger, 300 km in diameter. Consequently, a random amount of metal in the debris is formed between 0 and 30 000 000 + a random amount of minerals is formed between 0 and 15 000 000 + 25% of debris from the buildings, defense and fleet that were at the station at the time of the explosion.

In the case of the destruction of a temple and planetary pirate station, debris is formed in the form of a random amount of metal and minerals. Average amount of metal and minerals is [5 000 * diameter], with ±50% spread, plus 25% of the cost of everything that was on the object (buildings, defense, fleet).

In case of destruction of asteroids debris created equal to 25% cost of everything on them.

In case when object's structure became negative, the object will self-destruct after 48 hours, or after any collision or Gravity Gun action (gun autodisabling feature will not prevent the destruction in that case). Structure can become negative after non-destructive changes, e.g. when object's owner loses bonuses to structure, or the object loses buildings after recolonization.

If the fleet flew to the destroyed object, then upon reaching the object the fleet discovers that there is nowhere to land and stay on the coordinates in the hold mode.
Destruction of the lore player (except pirates) orbital station does NOT generate debris.
Calculation of destruction

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Structure damage

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The chance of the fleet destruction with the back wave when destroying object