update simulation interface

include/simulation.hpp

@@ -28,9 +28,11 @@ public:
     void setNeighborhoodRule(NeighborhoodRule*);
     void setTransitionRule(TransitionRule*);
     void setAlphabet(const Alphabet&);
+    const Alphabet& getAlphabet() const {return automaton.getAlphabet();}
+    void setGrid(const Grid&);
     const Grid& getGrid() const;
-    void setCell(const Coord&, unsigned int);
-    void resize(size_t,size_t);
+    //void setCell(const Coord&, unsigned int);
+    //void resize(size_t,size_t);
 
     void reset();
     void step();

src/simulation.cpp

@@ -27,7 +27,18 @@ const Grid& Simulation::getGrid() const {
     return automaton.getGrid();
 }
 
-void Simulation::setCell(const Coord& coord, unsigned int val) {
+void Simulation::setGrid(const Grid & grid) {
+    if(!time) {
+        startGrid = grid;
+        time = 0;
+        hist = History(10);
+    } else if((grid.get_col() != automaton.getGrid().get_col())&&(grid.get_rows() != automaton.getGrid().get_rows())) {
+        return;
+    }
+    automaton.setGrid(grid);
+}
+
+/*void Simulation::setCell(const Coord& coord, unsigned int val) {
     automaton.setCell(coord, val);
     startGrid.set_cell(coord, val);
 }
@@ -45,7 +56,7 @@ void Simulation::resize(size_t l,size_t c) {
 
     startGrid = newGrid;
     reset();
-}
+}*/
 
 void Simulation::reset() {
     automaton.setGrid(startGrid);
@@ -61,7 +72,7 @@ void Simulation::step() {
 }
 
 void Simulation::back() {
-    if(hist.isEmpty()) {
+    if(!hist.isEmpty()) {
         automaton.setGrid(hist.topGrid());
         //automaton.getNeighborhoodRule()->back();
         hist.popGrid();