Hover Movement

On solution:

1) Since 92.0 there is an unitdef tag that allows specifically this, making the "ghost unit" approach unnecessary.
2) Even if this was really needed for 91.0, it's easier to do with an animation script.

I have no thoughts on necessity, but i think scrubbers are already quite devastating without being able to do 180-degree turns, so they'd require additional rebalance.

They also still crit even while their gun was buffed.

Unfortunately the unit still needs to turn to move, the script just turns it back.

So all this means is that the whole unit is a turret. The primary thing this does is make it impossible to determine the direction the unit is -actually- facing. Which is, um, really bad.

Physically, it is no different than just having a turret on a unit with a very fast turn rate. Basically all our bots behave this way, and frankly it makes them less interesting (it removes the physical mechanics of having a turning circle). Worse, if the unit turns -really- fast (nigh-instantaneous direction-change for the purposes of movement) the turret (IE the whole model) is going to lag behind and waggle around, you get this on the warrior and a lot of other units, you've probably seen it.

There might be a way to set the models direction independent of the unit facing itself (I suspect so) but that's still basically a bot.

More interesting is a unit that takes time to get up to maximum velocity, and then when it turns needs to accelerate in the other direction- it cannot convert momentum in one direction into momentum in another direction simply by turning (If you've ever rolled a car you know this is basically how they work anyway and that turning is a lie). This is how gunships operate, when you turn them they slowly accelerate back in the other direction. Hovers doing this would actually be something interesting and more worthwhile (Though, it may not actually turn out well or create good micro or mechanics).

Set a gunship, like the Banshee, to have 0.01 turnrate, 0.01 brakerate, and 1 turnrate (Or 10,000 turnrate, it doesn't matter).

You'll see the direction the gunship faces has basically nothing to do with it's acceleration or movement. When you give an order perpendicular to the current velocity of the banshee you'll see it slowly swing around as it continues to drift in it's current direction of thrust- whether it has 1 turnrate or 10k.

When you give a gunship a movement order behind it, you'll see it does not turn around so much as slowly decelerate then accelerate again in the direction of movement.

Try again with an acceleration of like 20 and you'll see that it reverses almost instantly, you can see this especially in the attack hover behaviour: when it changes directions, it snaps around the other way. It looks and behaves a lot more like a Starcraft unit.

That's what I said.

They accelerate and decelerate when they change direction (I used the word 'Turn' here, by that I do not mean changing facing i mean changing heading). They do not accelerate faster or slower depending on where they FACE, but depending on their current HEADING and MOMENTUM, IE their current velocity.

Hovers should be able to instantly change direction without turning, like in rl.

Buildings is a problem of all units, especially cons and commanders who get permastuck trying to pass between winds or something.

Movement direction? Direction? Velocity?

No, it is not the velocity. The velocity is what keeps it drifting according to it's current momentum when you tell it to change direction (and it's not just direction but 'change in' direction).