Light Table

light.cpp

/*
Light game

This source code is following the rules of the game rules.
Rules should be "Click one light on the table, then the light and its around (top, bottom, left, right) will be toggled."

Author: Muisnow (@000hen)
*/

#include<iostream>
#include<vector>
#include<string>
#include<iomanip>

std::vector<std::string> split(std::string data, std::string delimiter) {
    std::vector<std::string> opt;
    
    size_t pos;
    while ((pos = data.find(delimiter)) != std::string::npos) {
        opt.push_back(data.substr(0, pos));
        data.erase(0, pos + delimiter.length());
    }
    opt.push_back(data);
    
    return opt;
}

std::string getLines() {
    std::string input;
    std::cout << "> ";
    std::getline(std::cin, input);
    
    return input;
}

void showTable(bool* table, int width, int height) {
    std::cout << std::setw(7) << "|";
    for (int i = 0; i < width; i++) {
        std::cout << std::setw(6) << i << "|";
    }
    std::cout << std::endl;
    for (int y = 0; y < height; y++) {
        std::cout << std::setw(6) << y;
        for (int x = 0; x < width; x++) {
            std::cout << "|" << std::setw(6) << (table[y * width + x] ? "X" : " ");
        }
        std::cout << "|" << std::endl;
    }
}

int main() {
    int width, height;
    
    printf("Light table size ([height] [width])\n");
    std::string size = getLines();
    std::vector<std::string> sizeOpt = split(size, " ");
    height = std::stoi(sizeOpt[0]);
    width = std::stoi(sizeOpt[1]);
        
    bool table[height * width];
    for (int i = 0; i < height * width; i++) {
        table[i] = false;
    }


    printf("Light table with %d x %d\n", width, height);
    printf("Command:\n");
    printf("\t[x] [y]: set light at x, y\n");
    printf("\texit: exit\n\n");

    showTable(table, width, height);

    while (true) {
        std::string input;
        input = getLines();
        
        std::string delimiter = " ";
        std::vector<std::string> data = split(input, delimiter);

        if (data[0] == "exit") break;

        int x = std::stoi(data[0].c_str());
        int y = std::stoi(data[1].c_str());

        if (x < 0 || x >= width || y < 0 || y >= height) {
            printf("Out of range\n");
            continue;
        }
        int index = y * width + x;

        table[index] = table[index] ? false : true;
        if (index % width != 0) table[index - 1] = table[index - 1] ? false : true;
        if (index % width != width - 1) table[index + 1] = table[index + 1] ? false : true;
        table[index + width] = table[index + width] ? false : true;
        table[index - width] = table[index - width] ? false : true;

        showTable(table, width, height);
    }

    return 0;
}