stage 4 has been completed

SolovevDS/docs/data/data_for_task2/task2.cpp

@@ -1,8 +1,9 @@
 #include <fstream>
 #include <iostream>
 #include <string>
-#include <stdexcept>
+#include <stdexcept> /*для ошибок*/
 #include <cmath>
+#include <chrono> /*мерит время*/
 
 class cell{
     private:
@@ -12,15 +13,15 @@ class cell{
         bool isStart;
 
     public:
-        cell(){x=0; y=0; isWall=false; isExit=false; isStart = false;}
+        cell() {x=0; y=0; isWall=false; isExit=false; isStart = false;}
         cell(int x, int y, bool isWall, bool isExit, bool isStart) 
-            {
-                this->x = x;
-                this->y = y;
-                this->isWall = isWall;
-                this->isExit = isExit;
-                this->isStart = isStart;
-            }
+        {
+            this->x = x;
+            this->y = y;
+            this->isWall = isWall;
+            this->isExit = isExit;
+            this->isStart = isStart;
+        }
 
         bool isPassable() {return !isWall;}
 
@@ -259,6 +260,7 @@ class TextFileMazeBuilder : public MazeBuilder {
 class PathFindingStrategy {
     public:
         virtual cell** findPath(maze* m, cell* start, cell* exit) = 0;
+        virtual int getVisitedCells() = 0; /*для посещенных клеток*/
         virtual ~PathFindingStrategy() {}
 };
 
@@ -290,8 +292,16 @@ class PathBuilder {
 };
 
 class BFSStrategy : public PathFindingStrategy {
+    private:
+        int visitedCells;
     public:
+
+        BFSStrategy() {visitedCells = 0;}
+
+        int getVisitedCells() override {return visitedCells;}
+
         cell** findPath(maze* m, cell* start, cell* exit) override {
+            visitedCells = 0;
             int width = m->getWidth();
             int height = m->getHeight();
             bool** visited = new bool*[width];
@@ -319,6 +329,7 @@ class BFSStrategy : public PathFindingStrategy {
             while (head < tail) {
                 cell* current = deque[head];
                 head++;
+                visitedCells++;
 
                 if (current == exit) { //сравниваются указатели
                     found = true;
@@ -367,8 +378,15 @@ class BFSStrategy : public PathFindingStrategy {
 };
 
 class DFSStrategy : public PathFindingStrategy {
+    private:
+        int visitedCells;
     public:
+        DFSStrategy() {visitedCells = 0;}
+
+        int getVisitedCells() override {return visitedCells;}
+
         cell** findPath(maze* m, cell* start, cell* exit) override {
+            visitedCells = 0;
             int width = m->getWidth();
             int height = m->getHeight();
             bool** visited = new bool*[width];
@@ -394,6 +412,7 @@ class DFSStrategy : public PathFindingStrategy {
             while (top > 0) {
                 top--;
                 cell* current = stack[top];
+                visitedCells++;
 
                 if (current == exit) { //сравниваются указатели
                     found = true;
@@ -444,16 +463,22 @@ class DFSStrategy : public PathFindingStrategy {
 class AStarStrategy : public PathFindingStrategy {
     private:
         int heuristic(cell* current, cell* exit) {return std::abs(current->getX() - exit->getX()) + std::abs(current->getY() - exit->getY());}
+        int visitedCells;
 
     public:
+        AStarStrategy() {visitedCells = 0;}
+
+        int getVisitedCells() override {return visitedCells;}
+
         cell** findPath(maze* m, cell* start, cell* exit) override {
+            visitedCells = 0;
             int width = m->getWidth();
             int height = m->getHeight();
 
             bool** closed = new bool*[width];   /*клетка [x][y] посещена (да/нет)*/
             bool** inOpen = new bool*[width];   /*клетка [x][y] имеет потенциал к посещению (да/нет)*/
             int** gScore = new int*[width];     /* до клетка [x][y] от старта gSchore[x][y] шагов*/
-            int** fScore = new int*[width];     /*f = h + g, где g - эвристика клетки[x][y]*/
+            int** fScore = new int*[width];     /*f = h + g, где h - эвристика клетки[x][y]*/
 
             cell*** parent = new cell**[width];
 
@@ -511,6 +536,7 @@ class AStarStrategy : public PathFindingStrategy {
 
                 if (current == exit) {
                     found = true;
+                    visitedCells++; /*чтоб выход засчитывался*/
                     break;
                 }
 
@@ -522,6 +548,7 @@ class AStarStrategy : public PathFindingStrategy {
 
                 inOpen[cx][cy] = false;
                 closed[cx][cy] = true;
+                visitedCells++;
 
                 cell** neighbors = m->getNeighbors(current);
 
@@ -582,6 +609,52 @@ class AStarStrategy : public PathFindingStrategy {
         }
 };
 
+class SearchStats {
+public:
+    double timeMs;
+    int visitedCells;
+    int pathLength;
+
+    SearchStats(double timeMs, int visitedCells, int pathLength) {
+        this->timeMs = timeMs;
+        this->visitedCells = visitedCells;
+        this->pathLength = pathLength;
+    }
+};
+
+class MazeSolver{
+    private:
+        maze* labirint;
+        PathFindingStrategy* strategy;
+    public:
+        MazeSolver(maze* labirint) {this->labirint = labirint;}
+
+        void setStrategy(PathFindingStrategy* strategy){
+            this->strategy = strategy;
+        }
+
+        SearchStats solve(){
+            auto start = std::chrono::high_resolution_clock::now();
+            cell** path = strategy->findPath(labirint,labirint->getStart(),labirint->getExit());
+            auto end = std::chrono::high_resolution_clock::now();
+            std::chrono::duration<double, std::milli> duration = end - start;
+
+
+            int pathLength = 0;
+
+            if (path[0] != nullptr)
+                while (path[pathLength] != nullptr) {pathLength++;}
+
+            int visitedCells = 0;
+            visitedCells = strategy->getVisitedCells();
+            delete[] path;
+
+            SearchStats stats(duration.count(), visitedCells, pathLength);
+            return stats;
+        }
+
+};
+
 
 int main(){