Code-Snippets.md

@@ -1,13 +1,21 @@
 ```csharp
-  public static class Geometry {
-    public static bool PointInCone(
-    float visionRangeSq, float fovCos, Vector2 eyePos, Vector2 direction, Vector2 test) {
-      Vector2 delta = Vector2.Subtract(test, eyePos);
-      if (delta.LengthSquared() > visionRangeSq) {
-        return false;
-      }
-      float dot = Vector2.Dot(Vector2.Normalize(direction), Vector2.Normalize(delta));
-      return dot > fovCos;
+public static class Geometry {
+  public static bool PointInCone(
+  float visionRangeSq, float fovCos, Vector2 eyePos, Vector2 direction, Vector2 test) {
+    Vector2 delta = Vector2.Subtract(test, eyePos);
+    if (delta.LengthSquared() > visionRangeSq) {
+      return false;
     }
+    float dot = Vector2.Dot(Vector2.Normalize(direction), Vector2.Normalize(delta));
+    return dot > fovCos;
   }
+}
+```
+
+```csharp
+// Make a 1x1 white texture:
+Texture2D whiteTexture = new Texture2D(GraphicsDevice, 1, 1);
+whiteTexture.SetData(new Color[] { Color.White });
+// When done with it:
+whiteTexture.Dispose();
 ```