Lower cliffs and meander the rivers a little

Assets/Scripts/CliffAgent.cs

@@ -8,7 +8,7 @@ public class CliffAgent : ScriptableObject
 
     private Vector2Int pos;
 
-    private float cliffHeight = 0.6f;
+    private float cliffHeight = 0.4f;
 
     // Start is called before the first frame update
     void Start()

Assets/Scripts/RiverAgent.cs

@@ -10,7 +10,7 @@ public class RiverAgent : MonoBehaviour
 
     private float cliffHeight = 0.6f;
 
-    private Vector2 direction;
+    private Vector2 origDir;
 
     // Start is called before the first frame update
     void Start()
@@ -41,10 +41,17 @@ public class RiverAgent : MonoBehaviour
         int size = heightmap.getSize();
         pos = new Vector2Int(size / 2, size / 2);
 
-        direction = Random.insideUnitCircle;
+        origDir = Random.insideUnitCircle;
+        Vector2 direction = origDir;
 
         for (int i = 0; i < 1000; i++)
         {
+            Vector2 randDir = Random.insideUnitCircle;
+            randDir = Vector2.Dot(direction, randDir) > 0 ? randDir : -randDir;
+            Vector2 deviation = randDir * 0.5f;
+            direction += deviation;
+            direction.Normalize();
+
             pos += direction;
             Vector2Int intPos = new Vector2Int((int) pos.x, (int) pos.y);