Add project files.

Car simulation/Vector2.cs

@@ -0,0 +1,39 @@
+public struct Vector2
+{
+    public float X, Y;
+
+    public Vector2(float x, float y) { X = x; Y = y; }
+
+    public float Length => MathF.Sqrt(X * X + Y * Y);
+    public float LengthSquared => X * X + Y * Y;
+
+    // Returns a normalized copy
+    public Vector2 Normalized()
+    {
+        float length = Length;
+        if (length > 0.0001f)
+            return new Vector2(X / length, Y / length);
+        return new Vector2(0, 0);
+    }
+
+    // Normalizes in place
+    public void Normalize()
+    {
+        float length = Length;
+        if (length > 0.0001f)
+        {
+            X /= length;
+            Y /= length;
+        }
+    }
+
+    // Static normalize
+    public static Vector2 Normalize(Vector2 v) => v.Normalized();
+
+    // Operators
+    public static Vector2 operator *(Vector2 v, float s) => new Vector2(v.X * s, v.Y * s);
+    public static Vector2 operator *(float s, Vector2 v) => new Vector2(v.X * s, v.Y * s);
+    public static Vector2 operator /(Vector2 v, float s) => new Vector2(v.X / s, v.Y / s);
+    public static Vector2 operator +(Vector2 a, Vector2 b) => new Vector2(a.X + b.X, a.Y + b.Y);
+    public static Vector2 operator -(Vector2 a, Vector2 b) => new Vector2(a.X - b.X, a.Y - b.Y);
+}