cmd.cpp

#include <iostream>
#include <cstdlib>
#include <string>
#include "Skyscraper.h"
#include "Tree.h"


#define NEW_LINE cout << endl;

using namespace std;

int main()
{
    string prompt = "=>";
    string cmdline;
    bool on = true;
    while (on)
    {
        NEW_LINE
        cout << prompt; getline(cin, cmdline);
        if (cmdline == "exit") on = false; // Exit clause

        // Multiple argument commands
        else if (!cmdline.empty())
        {
            // Separate cmdline input into vector containing each arg

            const char* yourStr = cmdline.c_str();
            char str[100];
            strncpy(str, yourStr, sizeof(str));
            char* parts[10] = {0};
            unsigned int index = 0;
            parts[index] = strtok(str," ");
            while(parts[index] != 0)
            {
                ++index;
                parts[index] = strtok(0, " ");
            }

            // Now evaluate command

            if (string(parts[0]) == "hex2dec")  // Convert hexadecimal to decimal
            {
                cout << parts[1] << " base 16 = ";
                int converted = strtol(parts[1], NULL, 16);
                cout << converted << " base 10.";
            }
            else if (string(parts[0]) == "dec2hex")  // Convert decimal to hexadecimal
            {
                cout << parts[1] << " base 10 = ";
                int converted = strtol(parts[1], NULL, 10);
                cout << hex << uppercase << converted << " base 16.";
            }
            else if (string(parts[0]) == "prompt")  // Change the prompt
            {
                prompt = string(parts[1]);
            }
            else if (string(parts[0]) == "draw")    // Draw a....
            {
                if (string(parts[1]) == "tree")     // Tree must specify height
                {
                    int height = strtol(parts[2], NULL, 10);
                    Tree arbre(height);
                    arbre.drawTree();
                }
                else if (string(parts[1]) == "house") // House with n parameters
                {
                    int params = strtol(parts[2], NULL, 10);
                    switch (params)                   // Number of parameters
                    {
                    case 0:                           // No params
                        {
                            Skyscraper house;         // Default construct
                            house.drawBuilding();
                            break;
                        }
                    case 1:                           // Only number of floors specified
                        {
                            int nF = strtol(parts[3], NULL, 10);
                            Skyscraper house(nF);
                            house.drawBuilding();
                            break;
                        }
                    case 2:                           // Number floors and floor height specified
                        {
                            int nF = strtol(parts[3], NULL, 10);
                            int fH = strtol(parts[4], NULL, 10);
                            Skyscraper house(nF, fH);
                            house.drawBuilding();
                            break;
                        }
                    case 3:                          // Number floors + floor height + floor length
                        {
                            int nF = strtol(parts[3], NULL, 10);
                            int fH = strtol(parts[4], NULL, 10);
                            int fL = strtol(parts[5], NULL, 10);
                            Skyscraper house(nF, fH, fL);
                            house.drawBuilding();
                            break;
                        }
                    }
                }
            }
        }
    }

    return 0;
}