From c8b022f5f1ea0d0f2344beab5ffb37af1ef0e3f0 Mon Sep 17 00:00:00 2001
From: Sasha Koshka <sashakoshka@tebibyte.media>
Date: Sat, 1 Jul 2023 11:01:51 -0400
Subject: [PATCH] Add a PolyLine function

---
 polygon.go | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/polygon.go b/polygon.go
index 2ddcf19..56e901c 100644
--- a/polygon.go
+++ b/polygon.go
@@ -5,7 +5,7 @@ import "image"
 
 func (this Image[T]) FillPolygon (fill []T, points ...image.Point) {
 	this.assertWidth(fill)
-	if len(points) < 2 { return }
+	if len(points) < 3 { return }
 
 	// figure out the bounds of the polygon so we don't test empty space
 	var area image.Rectangle
@@ -88,3 +88,12 @@ func (this Image[T]) StrokePolygon (stroke []T, weight int, points ...image.Poin
 		prevPoint = point
 	}
 }
+
+func (this Image[T]) PolyLine (stroke []T, weight int, points ...image.Point) {
+	if len(points) < 2 { return }
+	prevPoint := points[0]
+	for _, point := range points[1:] {
+		this.Line(stroke, weight, prevPoint, point)
+		prevPoint = point
+	}
+}