DiscreteRotationMath

fun fromSurfaceRotation(surfaceRotation: Int): Int

Get a DiscreteRotation from Surface rotation values.

fun requireDiscreteRotation(degrees: Int): Unit

Throws an IllegalArgumentException if the given degrees is not one of 0, 90, 180, 270.

fun round(degrees: Float): Int

Round degrees to the nearest discrete rotation (0, 90, 180, 270). Negative values are rounded to the nearest positive discrete rotation value.

Example(s):

• 40.000f => 0°

• 44.990f => 0°

• 45.001f => 90°

• -40.00f° => 0° (Equivalent to -40.000f + 360 => round(320) => 0)

• -50.00f° => 270° (Equivalent to -50.000f + 360 => round(310) => 270)

fun round(degrees: Int): Int

Round degrees to the nearest discrete rotation (0, 90, 180, 270). Negative values are rounded to the nearest positive discrete rotation value.

Example(s):

• 40 => 0°

• 50 => 90°

• -40 => 0° (Equivalent to -40 + 360 => round(320) => 0)

• -50 => 270° (Equivalent to -50 + 360 => round(310) => 270°)