From cc921ddb29eebb9de9a7ad96b59c702ee5268bb8 Mon Sep 17 00:00:00 2001
From: Sasha Koshka <sashakoshka@tebibyte.media>
Date: Sat, 1 Jul 2023 11:05:20 -0400
Subject: [PATCH] Move circle function out of example and into new file

---
 examples/glaggle/main.go | 21 ++++-----------------
 shapes.go                | 16 ++++++++++++++++
 2 files changed, 20 insertions(+), 17 deletions(-)
 create mode 100644 shapes.go

diff --git a/examples/glaggle/main.go b/examples/glaggle/main.go
index b77f8dc..a2d63c8 100644
--- a/examples/glaggle/main.go
+++ b/examples/glaggle/main.go
@@ -1,7 +1,6 @@
 package main
 
 import "os"
-import "math"
 import "image"
 import "image/png"
 import "git.tebibyte.media/tomo/ggfx"
@@ -18,16 +17,16 @@ func main () {
 	yellow := []uint8 { 255, 255, 0, 255 }
 	midpoint := image.Pt(canvas.Bounds.Dx() / 2, canvas.Bounds.Dy() / 2)
 
-	face := circle(32, 100, midpoint)
+	face := ggfx.Circle(32, 100, midpoint)
 	canvas.FillPolygon(yellow, face...)
 	canvas.StrokePolygon(black, 2, face...)
 	
-	eye := circle(12, 16, midpoint.Add(image.Pt(-40, -30)))
+	eye := ggfx.Circle(12, 16, midpoint.Add(image.Pt(-40, -30)))
 	canvas.FillPolygon(black, eye...)
-	eye = circle(12, 16, midpoint.Add(image.Pt(40, -30)))
+	eye = ggfx.Circle(12, 16, midpoint.Add(image.Pt(40, -30)))
 	canvas.FillPolygon(black, eye...)
 
-	mouth := circle(16, 70, midpoint)
+	mouth := ggfx.Circle(16, 70, midpoint)
 	canvas.StrokePolygon(black, 2, mouth[1:8]...)
 	
 	file, err := os.Create("TEST.png")
@@ -38,15 +37,3 @@ func main () {
 	
 	println("Open TEST.png to see the result.")
 }
-	
-func circle (resolution int, radius float64, center image.Point) []image.Point {
-	points := make([]image.Point, resolution)
-	for index := range points {
-		angle := float64(index) * ((2 * math.Pi) / float64(len(points)))
-		point := image.Pt (
-			int(math.Cos(angle) * radius),
-			int(math.Sin(angle) * radius))
-		points[index] = point.Add(center)
-	}
-	return points
-}
diff --git a/shapes.go b/shapes.go
new file mode 100644
index 0000000..cd22974
--- /dev/null
+++ b/shapes.go
@@ -0,0 +1,16 @@
+package ggfx
+
+import "math"
+import "image"
+
+func Circle (resolution int, radius float64, center image.Point) []image.Point {
+	points := make([]image.Point, resolution)
+	for index := range points {
+		angle := float64(index) * ((2 * math.Pi) / float64(len(points)))
+		point := image.Pt (
+			int(math.Cos(angle) * radius),
+			int(math.Sin(angle) * radius))
+		points[index] = point.Add(center)
+	}
+	return points
+}