Rotation constraint question - constrain to min and max

JamesZeppelin

Before i ask i must say that i have been looking in the forums for about an hour now.
There a lot of angle constraint post so, maybe i'm missing something

All i need to do is make an object that gets kicked around a lot (a rectangle)
not rotate counter clockwise past 80 or clockwise past 260

basically just tip back and fourth a little rather than spin all the way around if it gets hit real hard

thanks

JamesZeppelin

Just bumping before it disappears...

im stuck

synthesis

Try swapping back and forth between rotation with acceleration (when the actor is "impacted" by a touch for example) and then rotate to angle after X seconds...like an automatic tuner dial with a snapping ability.

You could also do this even slicker if you have gravity in play. Constrain a transparent pointer actor to an edge point of the rotating actor. Then give that pointer impact physics. Then tie the rotation dial to the pointer by a rotation to point behavior. The pointer will always want to point down but will fly around when touched or bumped but then always try to return to down...like a tire swing. The dial will follow the pointer then.

If you are looking to just control a dial range...< = > Rules should control that.

synthesis

The gravity thing could be modified by having the pointer actor always trying to moveTo or accelerate towards a set XY point if it is impacted by another event.

JamesZeppelin

Yeah that sounds good in theory, and i like the way it could work

but, i would just settle the part of the constrain attribute i am missing

basically just constrain it with "constrain attribute"

self.rotation = "the min,max part i am missing here"

thanks

JamesZeppelin

Ok, problem solved

I completely overlooked the easiest solution

Just add "rotate to angle" set to 0 and then just played with the speed worked for me.

this way it is always auto correcting itself

der

StormyStudio

nice way to fix it....good to know...cheers for posting your findings TinyMonster

alcamie

I'm bumping this because I have a similar yet different constraint issue..
I am rotating a gun based on the angle vector. i.e.
contraint attribute: self.rotate = vectorToAngle( game.fireHitX - self.Position.X , game.fireHitY - self.Position.Y )
this ia a feed back loop created by adding:

Constraint Attribut: setGunX
game.gunX = self.Position.X
Constraint Attribut: setGunY
game.gunY = self.Position.Y

This way I get a very cheap (in CPU usage terms) gun rotate to where mouse tap or finger tap happens.

I now want to constrain the rotation going past vertical up or vertical down. (I want The gun always pointing to the left in otherwords between up and down zenith).

any help would be great cos for some reason I just can't se the answer.

Cheers

alcamie

alcamie said:
I'm bumping this because I have a similar yet different constraint issue..
I am rotating a gun based on the angle vector. i.e.
contraint attribute: self.rotate = vectorToAngle( game.fireHitX - self.Position.X , game.fireHitY - self.Position.Y )
this ia a feed back loop created by adding:

Constraint Attribut: setGunX
game.gunX = self.Position.X
Constraint Attribut: setGunY
game.gunY = self.Position.Y

This way I get a very cheap (in CPU usage terms) gun rotate to where mouse tap or finger tap happens.

I now want to constrain the rotation going past vertical up or vertical down. (I want The gun always pointing to the left in otherwords between up and down zenith).

Any help would be great cos for some reason I just can't see the answer.

Cheers