LifeWithoutDeath implementation and test

src/Goldfish.java

@@ -15,15 +15,15 @@ public class Goldfish {
 
     public void run () {
         //TODO: make it run.
-        _grid.getPatch(1,0).setState(2);
-        _grid.getPatch(2,1).setState(2);
-        _grid.getPatch(2,2).setState(2);
-        _grid.getPatch(1,2).setState(2);
-        _grid.getPatch(0,2).setState(2);
+        _grid.getPatch(1,0).setState(1);
+        _grid.getPatch(2,1).setState(1);
+        _grid.getPatch(2,2).setState(1);
+        _grid.getPatch(1,2).setState(1);
+        _grid.getPatch(0,2).setState(1);
         System.out.println(_grid);
 
-        for (int i = 0; i < 6; i++) {
-            _grid = BriansBrain.run(_grid);
+        for (int i = 0; i < 10; i++) {
+            _grid = LifeWithoutDeath.run(_grid);
             System.out.println("------------");
             System.out.println(_grid);
         }

src/rules/LifeWithoutDeath.java

@@ -0,0 +1,27 @@
+package edu.stuy.goldfish.rules;
+
+import edu.stuy.goldfish.Grid;
+import edu.stuy.goldfish.Patch;
+
+// Conway, without dying cells
+public class LifeWithoutDeath extends RuleSet {
+    public static int states = 2;
+
+    public static Grid run (Grid g) {
+        Grid newGrid = new Grid(g.getWidth(), g.getHeight());
+        for (int i = 0; i < g.getWidth(); i++) {
+            for (int j = 0; j < g.getHeight(); j++) {
+                Patch[] neighbors = g.getPatch(i, j).get8Neighbors();
+                int numAlive = 0;
+                for (Patch neighbor : neighbors)
+                    if (neighbor.getState() == 1) numAlive++;
+                Patch p = g.getPatch(i,j).clone(newGrid);
+                if (numAlive == 3)
+                    p.setState(1); //Born with 3 neighbors.
+                newGrid.setPatch(i,j,p);
+            }
+        }
+
+        return newGrid;
+    }
+}