Make units spin

[Doomhammer]

with SetUnitFacing and SetUnitFacingTimed, the facing of a unit can be changed. I assume that per call of this function we can at maximum rotate the unit 359 degrees. Is that correct?
Now, let#s say we do this with a timer, then the maximum angle speed that can be achieved should be < 360 / timer_frequency

let's say, I call a timer every 0.04 seconds, then a maximum of close to 25 rotations per second should be achievable. Yet the spin speed I get in game looks nowhere near 25 (rather looks like a 1-2 rotations/sec)

function timer_child takes nothing returns nothing
//
call SetUnitFacing(u, GetUnitFacing(u)+359)
//
endfunction

Where's my mistake? Any ideas how to make units spin fast?

 

[Magentix]

Perhaps the unit needs to have Rotation Speed set to 1 in Object Editor?

 

[Arkan]

I tried rotating a unit with a timer callback aswell, to my dissapointment it didn't look good at all, more like he twisted 180 degrees at a time.

 

[phyrex1an]

Rotation is not instant, and the unit will always rotate in the direction that result in the smallest angle.

call SetUnitFacing(u, GetUnitFacing(u)+359)

Is the same as

call SetUnitFacing(u, GetUnitFacing(u)-1)

 

[Rheias]

> phyrex1an

In other words SetUnitFacing(u, GetUnitFacing(u)+X), the closer X is to 180, the faster the unit will spin, the unit will spin the to the angle with the shortest route possible.

 

[Doomhammer]

yeah, I already suspected it's 180deg

I'll see if it looks more like 12,5 rotations / sec with a timer callback time of 0.04 sec

EDIT: a few tests later, and the maximum I can get is about one rotation. Still very unsatisfying.

is there something I'm doing wrong?

                    call SetUnitFacingTimed(.u, GetUnitFacing(.u)+.vf,move_interval)
//move_interval=0.04, .vf=180.0

 

[Rheias]

> I'll see if it looks more like 12,5 rotations / sec with a timer callback time of 0.04 sec

You need to balance it. Making the angle change by too much every run will make it look choppy, but when making too many runs of timer it could lag a bit.

 

[Doomhammer]

> I'll see if it looks more like 12,5 rotations / sec with a timer callback time of 0.04 sec

You need to balance it. Making the angle change by too much every run will make it look choppy, but when making too many runs of timer it could lag a bit.

I wish it would look choppy, then I'd know that it works out. Yet the spin looks smooth, but is a lot slower than I want it.

 

[Rheias]

Then decrease the interval, or increase the angle. Do some calculations, 12.5 every 0.4 seconds might be a bit slow.

 

[Doomhammer]

I'm trying to make them rotate as fast as possible (with a timer frequency of 0.04 that would be ~12,5 rotations per sec i.e. 4500 deg/sec)
yet I somewhat think that there is a native limit - the fastest I could make units spin was simply lame. Can anybody confirm this?

 

[grim001]

yes, there is a limit, no, there is no realistic way to bypass it.

what you can do is create and remove a bunch of identical new units, since new units can have their facing specified instantly. but this approach is kind of laggy.

 

[Rheias]

Possibly the turn rate in the object editor? I'm just guessing now.

 

[Doomhammer]

might be. I'll have to make some more tests