[orx-shapes] use phase parameter in regularStar (#168)

openrndr · Feb 4, 2021 · d6dbf2a · d6dbf2a
1 parent cc766b6
commit d6dbf2a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/orx-shapes/src/main/kotlin/RegularStar.kt b/orx-shapes/src/main/kotlin/RegularStar.kt
@@ -9,10 +9,11 @@ import kotlin.math.sin
 
 fun regularStar(points: Int, innerRadius: Double, outerRadius: Double, center: Vector2 = Vector2.ZERO, phase: Double = 0.0): ShapeContour {
     return contour {
+        val theta = Math.toRadians(phase)
         val phi = PI * 2.0 / (points * 2)
         for (i in 0 until points * 2 step 2) {
-            val outerPoint = Vector2(cos(i * phi), sin(i * phi)) * outerRadius + center
-            val innerPoint = Vector2(cos((i + 1) * phi), sin((i + 1) * phi)) * innerRadius + center
+            val outerPoint = Vector2(cos(i * phi + theta), sin(i * phi + theta)) * outerRadius + center
+            val innerPoint = Vector2(cos((i + 1) * phi + theta), sin((i + 1) * phi + theta)) * innerRadius + center
             moveOrLineTo(outerPoint)
             lineTo(innerPoint)
         }