2026-rff_mp/SolovevDS/docs/data/data_for_task2/task2.cpp

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#include <fstream>
#include <iostream>
#include <string>
#include <stdexcept>
class cell{
private:
int x, y;
bool isWall;
bool isExit;
bool isStart;
public:
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;
}
bool isPassable() {return !isWall;}
void setStart(bool value) {isStart = value;}
void setExit(bool value) {isExit = value;}
void setX(int x) {this->x = x;}
void setY(int y) {this->y = y;}
void setIsWall(bool isWall) {this->isWall = isWall;}
int getX() {return x;}
int getY() {return y;}
bool getIsWall() {return isWall;}
bool getIsExit() {return isExit;}
bool getIsStart() {return isStart;}
};
class maze{
private:
int width;
int height;
cell** matrix;
cell* start;
cell* exit;
public:
maze(int width, int height)
{
this->width = width;
this->height = height;
this->start = nullptr;
this->exit = nullptr;
matrix = new cell*[width];
for (int x = 0; x < width; ++x) {
matrix[x] = new cell[height];
for (int y = 0; y < height; ++y)
matrix[x][y] = cell(x, y, false, false, false);
}
}
maze(int width, int height, int startX, int startY, int exitX, int exitY)
{
this->width = width;
this->height = height;
this->start = nullptr;
this->exit = nullptr;
matrix = new cell*[width];
for (int x = 0; x < width; ++x) {
matrix[x] = new cell[height];
for (int y = 0; y < height; ++y) {
matrix[x][y] = cell(x, y, false, false, false);
}
}
matrix[startX][startY].setStart(true);
matrix[exitX][exitY].setExit(true);
start = &matrix[startX][startY];
exit = &matrix[exitX][exitY];
}
~maze()
{
for (int i = 0; i < width; ++i)
delete[] matrix[i];
delete[] matrix;
}
cell* getCell(int x, int y) {
if (x < 0 || x >= width || y < 0 || y >= height)
return nullptr;
return &matrix[x][y];
}
void setCell(int x, int y, cell newCell) {
if (x < 0 || x >= width || y < 0 || y >= height)
return;
matrix[x][y] = newCell;
if (matrix[x][y].getIsStart())
start = &matrix[x][y];
if (matrix[x][y].getIsExit())
exit = &matrix[x][y];
}
cell** getNeighbors(cell* current) { /*ДЕЛАТЬ delete[] neighbors; !!!!!!!!!!!!!!!*/
cell** neighbors = new cell*[5];
int count = 0;
int x = current->getX();
int y = current->getY();
cell* up = getCell(x, y - 1);
cell* down = getCell(x, y + 1);
cell* left = getCell(x - 1, y);
cell* right = getCell(x + 1, y);
if (up != nullptr && up->isPassable()) {
neighbors[count] = up;
count++;}
if (down != nullptr && down->isPassable()) {
neighbors[count] = down;
count++;}
if (left != nullptr && left->isPassable()) {
neighbors[count] = left;
count++;}
if (right != nullptr && right->isPassable()) {
neighbors[count] = right;
count++;}
neighbors[count] = nullptr;
return neighbors;
}
cell* getStart() {return start;}
cell* getExit() {return exit;}
};
class MazeBuilder {
public:
virtual maze* buildFromFile(const std::string& filename) = 0;
virtual ~MazeBuilder() {}
};
class TextFileMazeBuilder : public MazeBuilder {
public:
maze* buildFromFile(const std::string& filename) override
{
std::ifstream file(filename);
if (!file.is_open())
throw std::runtime_error("Ошибка: Не удалось открыть файл!");
std::string line;
int width = 0;
int height = 0;
// ДОБАВИЛ: первый проход по файлу.
// Здесь узнаём ширину и высоту лабиринта.
while (std::getline(file, line)) {
if (height == 0) {
width = line.length();
}
else {
if (line.length() != width)
throw std::runtime_error("Ошибка: строки лабиринта разной длины!");
}
height++;
}
if (width == 0 || height == 0) {
throw std::runtime_error("Ошибка: файл пустой!");
}
file.clear();
file.seekg(0);
maze* labirint = new maze(width, height);
bool hasStart = false;
bool hasExit = false;
int y = 0;
while (std::getline(file, line)) {
for (int x = 0; x < width; x++) {
char ch = line[x];
bool isWall = false;
bool isStart = false;
bool isExit = false;
switch(ch){
case '#':
isWall = true;
break;
case ' ':
isWall = false;
break;
case 'S':
isStart = true;
if (hasStart)
throw std::runtime_error("Ошибка: в лабиринте больше одного старта!");
hasStart = true;
break;
case 'E':
isExit = true;
if (hasExit)
throw std::runtime_error("Ошибка: в лабиринте больше одного выхода!");
hasExit = true;
break;
default:
throw std::runtime_error("Ошибка: неизвестный символ в файле!");
break;
}
cell current(x, y, isWall, isExit, isStart);
labirint->setCell(x, y, current);
}
y++;
}
file.close();
if (!hasStart)
throw std::runtime_error("Ошибка: в лабиринте нет старта!");
if (!hasExit)
throw std::runtime_error("Ошибка: в лабиринте нет выхода!");
return labirint;
}
// прочитать символы
// создать клетки
// вернуть готовый Maze
}
};
int main(){
}