Fixed ghost track rotation on rear ends

Recalculation on track edit end
Changes rendering of ties to be evenly spaced
Fixes ghost and held track rendering

math/path.ts

@@ -237,10 +237,10 @@ export class PathSegment {
     resolution = 1,
     targetLength?: number,
   ) {
-    const points: Vector[] = [];
+    const points: [Vector, number][] = [];
 
-    points.push(this.points[0]);
-    let prev = points[0];
+    points.push([this.points[0], this.tangent(0).heading()]);
+    let [prev] = points[0];
     let distSinceLastEvenPoint = 0;
 
     let t = 0;
@@ -258,7 +258,7 @@ export class PathSegment {
           Vector.sub(point, prev).normalize().mult(overshoot),
         );
         distSinceLastEvenPoint = overshoot;
-        points.push(evenPoint);
+        points.push([evenPoint, this.tangent(t).heading()]);
         prev = evenPoint;
       }
 
@@ -278,7 +278,7 @@ export class PathSegment {
             Vector.sub(point, prev).normalize().mult(overshoot),
           );
           distSinceLastEvenPoint = overshoot;
-          points.push(evenPoint);
+          points.push([evenPoint, this.tangent(t).heading()]);
           prev = evenPoint;
         }
 
@@ -304,7 +304,7 @@ export class PathSegment {
     const curveLength = this.startingLength;
     const points = this.calculateEvenlySpacedPoints(1, 1, curveLength + 1);
     if (points.length >= curveLength) {
-      this.points[3].set(points[curveLength]);
+      this.points[3].set(points[curveLength][0]);
     }
   }