LinesOfSight: make vision cones red

Shared/LinesOfSight.cs

@@ -19,7 +19,7 @@ namespace SemiColinGames {
     // The number of total triangles drawn is one less than the number of edge points.
     readonly int[] indices = new int[(NUM_EDGE_VERTICES - 1) * 3];
 
-    Color color = Color.FromNonPremultiplied(new Vector4(0, 0, 1, 0.6f));
+    Color color = Color.FromNonPremultiplied(new Vector4(1, 0, 0, 0.5f));
 
     public LinesOfSight(GraphicsDevice graphics) {
       for (int i = 0; i < MAX_NPCS; i++) {
@@ -88,9 +88,7 @@ namespace SemiColinGames {
           }
         }
 
-        float tint = 0.6f - hitTime / 2;
-        Color tinted = Color.FromNonPremultiplied(new Vector4(0, 0, 1, tint));
-        coneVertices[index][i + 1] = new VertexPositionColor(new Vector3(closestHit, 0), tinted);
+        coneVertices[index][i + 1] = new VertexPositionColor(new Vector3(closestHit, 0), color);
       }
     }