option : last generated 2d board as initial state

src/store/index.js

@@ -26,7 +26,8 @@ export default new Vuex.Store({
     refreshRate: 300,
     initial1dState: "onecell",
     activeMenu: "Elementary Cellular Automata",
-    drawingDirection: "y"
+    drawingDirection: "y",
+    lastBoard: {}
   },
   mutations: {
     update1dSingleRule(state, data) {
@@ -59,6 +60,9 @@ export default new Vuex.Store({
     setDrawingDirection(state, data) {
       state.drawingDirection = data
     },
+    setLastBoard(state, data) {
+      state.lastBoard = data
+    },
   },
   getters: {
     getCellProperties(state) {
@@ -90,6 +94,9 @@ export default new Vuex.Store({
     },
     getDrawingDirection(state) {
       return state.drawingDirection
+    },
+    getLastBoard(state) {
+      return state.lastBoard
     }
   },
   actions: {