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(Official) Gravity Hull Designator - Localized Physics & Infinite Maps

A massive disclaimer here: This is not supposed to work flawlessly. This is a proof-of-concept more than anything, and possibly a builder's tool. The amount of hax in this addon is astronomical, and to fix it for every possible addon confliction (which is a lot of addons) would be way more work that it would be worth. I'd recommend having this tool disabled if you're not planning on using it for a while, since it will probably cause problems.

FAQ
Q: My contraption isn't working, it says it was designated but it isn't!
A: Does it have walls or a ceiling? If not, you need to increase the Vertical Protrusion Factor.

Q: Does this work with spheres?
A: Not in the way you're asking.

Q: Does this work with <<SUBJECT ADDON HERE>>
A: Maybe; depends on what the addon does. There may or may not be conflicts and there's a decent chance it won't work inside the hull, but lots of mods do. It's a matter of overriding the right things and I plan to fix as many of these as I can.

Q: I just want to fly a spaceship, I don't want people running around climbing walls like spiderman.
A: They can't. The only way you can walk on a wall is by making a "ship" and rotating it so that its floor is on the wall (or designating the wall with hit surface defines floor checked)-- it's not just a "climb wherever you want" deal.

• NOT a module, the mod is made entirely with lua and has no dependencies.
• NOT a reimplementation of source physics, it's a complex illusion that involves a room in the middle of nowhere.
• NOT a wall walking mod, though it can be used on something and then rotated 90 degrees so that down is now the wall.
• NOT a spherical planet mod. "Down" inside the ship is defined as the orientation gravity was pulling when the tool was first used. Spawn a dumpster, shoot it, flip it upside-down, and you're on the ceiling.
• NOT a way to stick to things. Again, down is only one direction internally and you cannot walk around the inside of a ring unless you make it out of multiple hulls, each with their own down. This might be made easier in the future.
• NOT a map entity. We might make a map entity later on that allows the effect to be present, but for now it's just something you build with.
• NOT a collision engine. This mod uses nothing more than source's built-in havok implementation, but it sure fools it a lot. Many shortcomings of havok are avoided by making it think something different is happening.

• a localized physics environment for any contraption, essentially behaving as if each hull was its own map.
• a tool that anyone can use on any set of welded props that has a clear interior and exterior.
• the first and only complete spazz protection for ships. Since the ghost doesn't move, entities inside cannot be thrown through the wall.
NOTE: In the future there will be a slider to control how much entities are thrown around by motion, but it will be applied in a backwards manner (negative velocity to the props, not positive velocity to the ghost) to avoid wallclipping, so even a 0% dampener will still stop spazz deaths even though it will throw things around just as much as before.
• a separate area with its own sense of "down." Gravity's internal direction is defined when you first designate your hull, and does not change relative to the ship's rotation.
• a stabilizer for pretty much any vehicle you can think of. Boats are especially interesting with the tool applied, because you actually rock back and forth in the water.
• linked with the outside world as seamlessly as possible (WIP)-- the physgun behaves properly for the most part, and you can toolgun entities on the outside while you're inside a hull, as well as press buttons/get in chairs.
• an override of many built-in functions such as GetPos, so there is a chance that your favorite mod might work with it already without any changes.
• a very convincing illusion. You're not actually in your ship, but it sure looks like you are. For this reason a lot of things (manhack lights for example) might render in the wrong place. But hey, a video game is just an illusion too, so who cares.
• a simple change brought on by extremely non-simple code, that can revolutionize almost everything else that's already possible with the simple addition of walking in a moving object and gravity being affected by rotation.

• Add the ability for the effect to be (adv)duplicated.
• Add the ability for the effect to be undone (Done!)
• Work on making major mods work flawlessly with the mod, especially spacebuild.
• Implement a dampening percentage slider so that values below 100% will allow some inertia through.
• Implement a dampening threshold slider so that only velocity changes above the value will obey the above.
• Fix parenting with Map Repeater. (Done!)
• Fix adv dupe weirdness with Map Repeater.*
• Fix thirdperson camera colliding with nonexistant brushes in Map Repeater
• Fix NPC walking off a hull causing prop bouncing weirdness.
• Add LOD for infinite maps to render distant cells. (Done!)
• Extend cell keyvalues, such as space (Done!), spawning brushes if another brush spawned or didn't spawn, etc.

*Some advdupes work fine, others teleport themselves to cell 0 0 0. Not sure why currently.
Visit the Facepunch Thread[facepunch.com] for more info!
(Workshop desc limit is too small to fit everything in!)