From ef2dc900fe785e0b976ddee3fed4335f3edc76aa Mon Sep 17 00:00:00 2001
From: Nick Gasson <nick@nickg.me.uk>
Date: Fri, 5 Mar 2010 21:01:17 +0000
Subject: [PATCH] Draw sleepers on sloped track

---
 src/SlopeTrack.cpp | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/SlopeTrack.cpp b/src/SlopeTrack.cpp
index 5e7751c..0a3d762 100644
--- a/src/SlopeTrack.cpp
+++ b/src/SlopeTrack.cpp
@@ -114,7 +114,27 @@ void SlopeTrack::render() const
       glRotatef(-90.0f, 0.0f, 1.0f, 0.0f);
 
    renderRailMesh(railMesh);
-   
+
+   // Draw the sleepers
+   glTranslatef(-0.5f, 0.0f, 0.0f);
+
+   for (float t = 0.1f; t < 1.0f; t += 0.25f) {
+      const Vector<float> curveValue = curve(t);
+
+      const Vector<float> deriv = curve.deriv(t);
+      const float angle =
+         radToDeg<float>(atanf(deriv.y / deriv.x));
+
+      glPushMatrix();
+      
+      glTranslatef(curveValue.x, curveValue.y, 0.0f);
+      glRotatef(angle, 0.0f, 0.0f, 1.0f);
+      
+      renderSleeper();
+
+      glPopMatrix();
+   }
+      
    glPopMatrix();
 }
 
-- 
2.39.2