diff --git a/lib/src/Engine.dart b/lib/src/Engine.dart
index e5190cf..3653353 100644
--- a/lib/src/Engine.dart
+++ b/lib/src/Engine.dart
@@ -55,7 +55,7 @@ class Engine {
     _simulation = Simulation(x, y);
 
     _elapsed.start();
-    _simulation.addPattern(amount: 15, dispersal: 5);
+    _simulation.addRandomPattern(amount: 15, dispersal: 5);
     html.window.animationFrame.then(animFrame);
   }
 
@@ -129,7 +129,7 @@ class Engine {
   }
 
   void addPattern({int amount, int dispersal}) {
-    _simulation.addPattern(amount: amount, dispersal: dispersal);
+    _simulation.addRandomPattern(amount: amount, dispersal: dispersal);
   }
 
   void toggleEdgeRendering() {
diff --git a/lib/src/Simulation.dart b/lib/src/Simulation.dart
index 90969ce..42df2a4 100644
--- a/lib/src/Simulation.dart
+++ b/lib/src/Simulation.dart
@@ -30,7 +30,7 @@ class Simulation {
     _dirty = true;
   }
 
-  void addPattern({int amount, int dispersal}) {
+  void addRandomPattern({int amount, int dispersal}) {
     int _startingSeed = DateTime.now().millisecondsSinceEpoch;
     math.Random rng = new math.Random(_startingSeed);
     _amount = amount ?? rng.nextInt(20);