For some reason my grid will not display in my program. Can you tell me what i would have to do to fix it. In all logic its right i think

#include <cstdlib>
#include <iostream>
#include "color.h"
#include <conio.h>

using namespace std;
using namespace Petter;

void title();
void credits();
void backGround();
void instructions();
int menu(char arrayGrid[][21]);
void displayGrid(char arrayGrid[][21]);
void gamePlay();
void yourTank();
void yourTankRotate();
void compTank();
void compTankRotate();
void stats();
void compStats();
void yourShootL();
void compShootL();
//void shootG();
void shieldLeft();
void move();
void hitLaser();
//void hitGrenade();
void direction();
void yourTankFace();

    char arrayGrid[21][21];
    int yourTankY =2;
    int yourTankX = 2;
    int compTankY = 19;
    int compTankX = 19;
    int action;
    int compShield; // HP
    int compMove; // actions per a turn
    int compWeapon; // +damage
    int compRange; // how far weapon can shoot
    int compTotal = compRange + compShield + compWeapon + compMove;
    int yourShield;// HP
    int yourMove; // actions per a round
    int yourWeapon; // +damage
    int yourRange; // how far your weapon shoots
    int yourFace;

int main(int argc, char *argv[])
{
    //yourTank;
    //compTank;
    
    char arrayGrid[21][21]={
                        {201,205,209,205,209,205,209,205,209,205,209,205,209,205,209,205,209,205,209,205,187},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {199,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,197,196,182},
                        {186,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',179,' ',186},
                        {200,205,207,205,207,205,207,205,207,205,207,205,207,205,207,205,207,205,207,205,188},
                        };
    
    
    title();
    credits();
    cout << endl;
    cout << endl;
    menu(arrayGrid);
    
    
    system("PAUSE");
    return EXIT_SUCCESS;
}
void title()
{
    cout << endl;
    cout << endl;
    cout << endl;
    cout << endl;
    cout <<  "\t\t\t" <<RED << " WELCOME TO M.I.M.E WARS!!!!!!!" << NORMAL << endl;   
}
void credits()
{
    cout << endl;
    cout << endl;
    cout << endl;
    cout << endl;
    cout << "\t\t\tCreated by: Michael Meyer" << endl;
    cout << "\t\t\tWith Help from: Mountain Dew" << endl;
}
int menu(char arrayGrid[][21])
{
    char choice;

    do
    {


    cout << "                                 :[B]ATTLE!:   " <<endl;
    cout << "                                               " <<endl;
    cout << "                                :[S]STORY LINE:" <<endl;
    cout << "                                               " <<endl;
    cout << "                               :[I]NSTRUCTIONS:" <<endl;
    cout << "                                               " <<endl;
    cout << "                              :[E]XIT(chicken!?):    " <<endl;

    choice =getch(); // calls for input
    switch(choice)
    {
                   case 'b':
                        {
                            gamePlay();
                        }
                   break;
                   case 's':
                        {
                            backGround();
                        }
                   break;
                   case 'i':
                        {
                            instructions();
                        }
                   break;
                   case 'e':
                   break;
    }
    }
    while(choice != 'e');

    return 0;
}
     
void instructions()
{
    cout << "\t\t\t\t Instructions" << endl << endl << endl;

            cout << "Player controls:" << endl;
            cout << "W key: Progress the M.I.M.E forward, towards the way they are facing." << endl;
            cout << "A key: Rotates the M.I.M.E left." << endl;
            cout << "D key: Rotatest the M.I.M.E Counter right." << endl;
            cout << "E key: Chooses to fire the M.I.M.E's Lazer." << endl;
            //cout << "Q key: Chooses to lob a M.I.M.E's Grenade." << endl;
    }
void backGround()
{
            cout << "\t\t\t\t Introduction" << endl << endl << endl;
            cout << "\tDuring the third World War a new breed of warefare was brought to life. M.I.M.E's were born to be a slave of men.";
            Sleep(4000);
            cout << " M.I.M.E, Mechines In Main Engagement, were a far more advance design of A.I.(Artificial Intelegence).";
            Sleep(4000);
            cout << "There mechines   were designed to lower human casualties, but instead turned and increase the   death toll.";
            cout << endl;
            Sleep(4000);
            cout << "\tWhen the M.I.M.Es turned, it was nothing more then a silent killing of  those around them.";
            Sleep(4000);
            cout << "Man was once again forced back into traditional warfare of    opertaing there own mechines and demise.";
            cout << endl;
            cout << endl;
            cout << endl;
            Sleep(4000);
            cout << "Who will win!?!?.........";
            cout << endl;
            cout << endl;    
}


   
void displayGrid(char arrayGrid[][21])    //create grid
{
     for(int i = 0;i < 21;i++)
     {
             for(int j = 0;j < 21;j++)
             {
                   
                    cout << arrayGrid[i][j];
             }
     cout <<endl;
     }
}

void gamePlay()
{
    stats();
    cout << endl;
    displayGrid(arrayGrid);
    cout << endl;
    shieldLeft();
    cout << endl;
    direction();
    cout << endl;
    cout << endl;
    move();
}

I had to massage it a little to get it to compile under VCPP Express.

I think your key problem is that you have 2 copies of the array arrayGrid one declared globally that never gets initialized and one declared in main that is never used.

gamePlay() calls displayGrid() passing the global copy of arrayGrid.

my compiler didn't like the char arrayGrid[21][21] version of the array. It was complaining about some of the initializers. (I guessed that the default char implementation was signed. So I changed all of the declarations to unsigned arrayGrid[21][21] and moved the initilized one to global space.)

When I run it I see this when I select battle:

╔═╤═╤═╤═╤═╤═╤═╤═╤═╤═╗
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╟─┼─┼─┼─┼─┼─┼─┼─┼─┼─╢
║ │ │ │ │ │ │ │ │ │ ║
╚═╧═╧═╧═╧═╧═╧═╧═╧═╧═╝

Is that the grid?

PS- you didn't include color.h so I commented out the RED and NORMAL and the using namespace Petter. For some reason the Sleep didn't resolve either so I macro'd them away. I also had to stub out shiledLeft(), move(), direction() and stats().

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