random road generation

Assets/Code/Track/TrackGenerator.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Code.Track
+{
+    public static class TrackGenerator
+    {
+        public static TrackData Generate(int seed, float targetLength = 200f, int segmentCount = 15)
+        {
+            Random.InitState(seed);
+
+            var points = new List<Vector3> { Vector3.zero };
+            var currentPos = Vector3.zero;
+            var direction = Vector3.forward;
+
+            for (var i = 0; i < segmentCount; i++)
+            {
+                var turn = Random.Range(-25f, 25f);
+                direction = Quaternion.Euler(0, turn, 0) * direction;
+                direction.y = 0;
+                direction.Normalize();
+
+                var segLen = targetLength / segmentCount;
+                currentPos += direction * segLen;
+                points.Add(currentPos);
+            }
+
+            var actualLength = 0f;
+            for (var i = 1; i < points.Count; i++)
+                actualLength += Vector3.Distance(points[i - 1], points[i]);
+
+            if (actualLength > 0.1f)
+            {
+                var scale = targetLength / actualLength;
+                for (var i = 1; i < points.Count; i++)
+                    points[i] *= scale;
+            }
+
+            return new TrackData(points);
+        }
+    }
+}