wasm rainbow polyring

1 files changed, 9 insertions, 5 deletions

diff --git a/src/state.rs b/src/state.rs
index 02a3a85..c2f7848 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -84,13 +84,17 @@ impl State {
         let poly_points = self.find_poly();
 
         self.ctx.set_line_width(0.005);
-        self.ctx.begin_path();
-        self.ctx.move_to(poly_points[0].x, poly_points[0].y);
-        for p in poly_points {
+        let mut iter = poly_points.into_iter();
+        let mut last = iter.next().ok_or("no poly points")?;
+        for p in iter {
+            self.ctx.begin_path();
+            self.ctx.move_to(last.x, last.y);
             self.ctx.line_to(p.x, p.y);
+            self.ctx.set_stroke_style_str(&last.color);
+            self.ctx.stroke();
+
+            last = p;
         }
-        self.ctx.set_stroke_style_str("blue");
-        self.ctx.stroke();
 
         Ok(())
     }