CODEWITHSUNDEEP
swiftsprite-kitswift2
Cherrypig
Cherrypig

Reputation: 370

SKNode() only 360deg zRotation

I am building a game where a playernode can rotate and has to match the angle of a target. When the target spawns it has an angle between 0 and 359. To match the angles I am working with the zRotation of the player and the target.

My question is, how to tell the player to just rotate from 0 to 359 and not more like 360, 361, 362... and not less than 0 like -1, -2...

I tried to set the players zRotation to 0 if it is larger than 360 and to 360 if it is smaller than 0, but I don't think this is the best way to go.

Anyone has done something similar?

Upvotes: 0

Views: 306

Answers (1)

Doug
Doug

Reputation: 3190

You can do this with modulus. Either after your calculation:

zRotation %= CGFloat(M_PI*2)

Or on your calculation:

zRotation = (zRotation + amount) % CGFloat(M_PI*2)

Upvotes: 1

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