Swift SpriteNode Initial Angle

Question

I'm trying to set the initial angle of my sprite to be 90 degrees. I don't want to call an action, is there a way of setting the angle parameter of a sprite as you do with the position?

score 1 · Accepted Answer · edited Jun 20 '20 at 09:12

1

zRotation

You can use the zRotation property of SKNode which accept radiants

Degrees to Radiants

There's a useful extension for that

extension Int {
    var degreesToRadians: Double { return Double(self) * M_PI / 180 }
    var radiansToDegrees: Double { return Double(self) * 180 / M_PI }
}

sprite.zRotation = CGFloat(90.degreesToRadians)

From the Api Doc

The Euler rotation about the z axis (in radians).

The default value is 0.0, which indicates no rotation. A positive value indicates a counterclockwise rotation. When the coordinate system is rotated, it affects the node and its descendants. The rotation affects the node’s frame property, hit testing, rendering, and other similar characteristics.

The Yoshi's Island image comes form here.

edited Jun 20 '20 at 09:12

Community

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answered Aug 19 '16 at 21:03

Luca Angeletti

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Parameters are in Radians and not degrees, so 90 won't work. Instead I put M_PI_2 – Diljot Jawanda Aug 19 '16 at 21:15
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Shouldn't the extension return a `CGFloat` instead of a `Double`? – 0x141E Aug 21 '16 at 08:57
Where, in the code of a game, should an extension to Int be? – Confused Oct 02 '16 at 15:38

Swift SpriteNode Initial Angle

1 Answers1

zRotation

Degrees to Radiants

From the Api Doc