187w ago - SCEE Senior Producer Mark Green has posted up the LittleBigPlanet Turbo! Pack Development Diary 7 and 8 today, which cover the Submarine and more, as follows:
'Turbo! Pack' Development Diary 7: 'Sub Standard' - Jon Torrens, Designer
Ah, the Submarine. We don't have water in LittleBigPlanet PSP, so the submarine was going to be a very different challenge to the other vehicles, because it has to have an almost neutral buoyancy. Let's put it this way, it took a lot of trial and error. The submarine is naturally buoyant, and sinks by emitting a metal block in its base.
Something I hadn't realised is that all the gadgets have their own weight. Now, this only comes into play when you're creating something that requires an exact amount of buoyancy to counter balance Sackboy's weight.
And sure enough, once I'd got the sub 'floating' just right, I needed to add the rockets, and they each had their own little mass which I had to allow for. Also, they have to be at the same height as the centre of gravity, so as not to rotate the submarine when they're firing.
Another problem I had was that if Sackboy dies while in the submarine near the start, the submarine's new version can't be emitted...