Fix Reset & Step not working on first click

Rendering dirty flags were not updated accordingly, so the updates happened but were not pushed to be rendered. Added and moved additional dirty flag setters.

lib/app_component.dart

@@ -44,6 +44,7 @@ class AppComponent implements OnInit {
   }
 
   void onResetClicked() {
+    engine.running = false;
     engine.reset();
   }
 

lib/src/App.dart

@@ -24,12 +24,13 @@ class App {
 
   App(this.canvas) {
     _elapsed.start();
-    grid.startingPattern();
+    grid.addPattern(amount: 15, dispersal: 5);
   }
 
   void reset() {
-    grid = new Grid(100, 100);
-    running = false;
+//    grid = new Grid(100, 100);
+//    running = false;
+    grid.reset();
   }
 
   void process(num now) {

lib/src/Grid.dart

@@ -89,6 +89,10 @@ class Grid {
     if (y < map.length && x < map[y].length) map[y][x].state = state;
   }
 
+  bool getCellState(int x, int y) {
+    if (y < map.length && x < map[y].length) return map[y][x].state;
+  }
+
   List<List<Cell>> _buildGrid(int w, int h) {
     print("grid being created");
     List<List<Cell>> grid = new List(h);
@@ -133,13 +137,13 @@ class Grid {
       for (int x = 0; x < w; x++) {
         // DEFAULTS TO CONWAY GAME OF LIFE RANGE OF ONE
         map[y][x].update(getSurroundingNeighbors(x, y, 1));
-        if (!_dirty && map[y][x].dirty) _dirty = true;
       }
     }
     for (int y = 0; y < h; y++) {
       for (int x = 0; x < w; x++) {
         // DEFAULTS TO CONWAY GAME OF LIFE RANGE OF ONE
         map[y][x].advanceState();
+        if (!_dirty && map[y][x].dirty) _dirty = true;
       }
     }
   }