From 7358bc0b2423f6c748c708ae6786ad1b78d4efea Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Tue, 21 Jul 2020 13:11:50 -0400
Subject: [PATCH] add a fudge to side length

---
 Shared/TreeScene.cs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Shared/TreeScene.cs b/Shared/TreeScene.cs
index c9f6934..787f594 100644
--- a/Shared/TreeScene.cs
+++ b/Shared/TreeScene.cs
@@ -121,6 +121,7 @@ namespace SemiColinGames {
 
         // We want a trapezoid with 4 points. A is the in position, B is the out position.
         // The TreeNode.Length is the distance from A to B.
+        //
         // We come up with the points relative to A being the origin, then rotate the trapezoid
         // by its orientation, and translate the result to A's actual position.
         //
@@ -129,11 +130,15 @@ namespace SemiColinGames {
         //   /     |     \
         //  1------A------2  <-- length = inWidth
 
+        // This fudge factor lengthens the sides a bit longer to prevent small discontinuities
+        // in the rendered result.
+        // TODO: remove this sideLengthFudge.
+        float sideLengthFudge = 1.05f;
         Trapezoid t = new Trapezoid();
         t.p1 = new Vector2(-parent.InWidth, 0);
         t.p2 = new Vector2(parent.InWidth, 0);
-        t.p3 = new Vector2(-parent.OutWidth, parent.Length);
-        t.p4 = new Vector2(parent.OutWidth, parent.Length);
+        t.p3 = new Vector2(-parent.OutWidth, parent.Length * sideLengthFudge);
+        t.p4 = new Vector2(parent.OutWidth, parent.Length * sideLengthFudge);
         t.Rotate(parent.Orientation);
         t.Translate(parent.Position);