Nice title, isn't it So what happens? Well if you send planet A to smash into planet B and someone sends planet B to smash into planet X, planet A will chase planet B until it smashes into planet X. When it does, planet A will start to slowly move towards the sun. At about half way, everything on planet A will get destroyed. After that, planet A will continue to the centre of the sun and stay there for the rest of the game.
Planet B wants to smash into planet A, but planet A is trying to smash into another planet so planet B can't catch it. ... Planet A reaches its target -> planet A gets destroyed -> Planet B loses its target -> planet B targets (0,0,0) in the solar system, which is the centre of the sun EDIT: This kind of thing is extremely rare. It happened when I wanted to smash a planet into my enemies planet before it was ready to smash into my main planet, but the enemy planet was ready and they sent it just after I sent mine.
This happened to me a while ago, but the bug wasn't the same. Planet A was going towards planet b, which then launched at planet c. A chased b until b collided with c. Then a just kept accelerating forever in a crazy orbit. Zaphod has this game on YouTube. I think he called it "orbital madness."
It might not be as rare as you think. When more planets are involved, more players will have asteroids ready to launch. If they are anything like me, then they won't launch immediately, but rather try to find out where the enemy commanders are first and disable any teleporters they might use to escape. However, when the sirens go off and a planet is being hurled at your planet, you will want to launch your planet immediately so you at least have a chance of killing stuff.
I think it should stay it's orbit where it would be able to hit stuff it wasn't intended to hit. Or just burn in the sun.
Favorite suggestion so far. My suggestion though, is to let planets intercept orbit if one is incoming (mirror it's orbit in reverse), and if it is equal in size both are destroyed while if it is lesser in size it only reduces the other's size. Also, this would only be possible in specific situations. Best to leave it as "the planet used to intercept is already in orbit around the planet targetted. Also, a lot of work, in leau of that idea I would use tontow's. There should be other catches. Like if it is targetting one that is simply moving orbits if that ever becomes a thing then it continues to chase until the moving planet stops and then hits (while repeated halley use requires a 20 second recharge time or something). Or if it is targetting one first that suddenly changes orbits to the one it is going, they also reverse mirror for collision, and same if one headed to your planet fires before or after the one you fired at it.
