Probably a vector problem

I'm not sure what is wrong with my vector or my functions,
but at line 30 in GameCapsule.cpp I suspect the function call to SetElementOnField() is going wrong.

The basic problem is that when I look at what the Person[i]'s 'x' and 'y' position and compare it to what PrintBattleField() shows they don't correspond.

ex: (an 'X' is a Person and an 'O' is open space)

Person 1 
x: 1 y: 0

Person 2
x: 3 y: 1

OOOO0
X0000
00000
0X000

The x and y values seem to be switched in the output.

So heres what the output should look like:

Person 1 
x: 1 y: 0

Person 2
x: 3 y: 1

OXOO0
000X0
00000
00000

All the includes and headers guards are there in my files but I excluded them from this snippet.
Here is what I believe to be all of the relevant code:

//GameCapsule.cpp

void GameCapsule::PrintBattleField()
{
    for (int i = 0; i<this->gameBattleField.GetDimension('x'); i++)
    {
        for (int j = 0; j<this->gameBattleField.GetDimension('y'); j++)
        {
            std::cout << this->gameBattleField.GetElementOnField(i,j);
        }
        std::cout << std::endl;
    }
    std::cout << std::endl;
}

  void GameCapsule::GenerateRandomCharacterPosition()
{
    int x;
    int y;
    for(int i = 0; i < numberOfCharacters; i++)
    {
        do
        {
        x = RNG(0,gameBattleField.GetDimension('x'));
        y = RNG(0,gameBattleField.GetDimension('y'));
        }while(gameBattleField.GetElementOnField(x,y) != 'O'); 

        Person[i].SetPosition('y', y);
        Person[i].SetPosition('x', x); 
        gameBattleField.SetElementOnField(x,y,Person[i].GetCharSymbol());
    }
}

//Battlefield.cpp

void Battlefield::SetDimension(int x, int y)
{
    this->xDimension = x;
    this->yDimension = y;
    field.resize(x, std::vector<char>(y,'O')); // Changes the vector size to x,y and fills with 'O'
}

short Battlefield::GetDimension(char dimension)
{
    if (dimension == 'x')
    {return this->xDimension;}
    else if (dimension == 'y')
    {return this->yDimension;}
}

char Battlefield::GetElementOnField(int x, int y)
{
    return this->field[x][y];
}

void Battlefield::SetElementOnField(int x, int y, char symbol)
{
    field[x][y] = symbol;
}

//Battlefield.h

class Battlefield
{
    public:
        Battlefield();
        void SetDimension(int x ,int y);
        short GetDimension(char dimension);
        char GetElementOnField(int x, int y);
        void SetElementOnField(int x, int y, char symbol);
    private:
        std::vector < std::vector<char> > field; //2d vector
        short xDimension;
        short yDimension;
};

Sorry for my sloppy structuring.

RNG(minimum,maximum) takes a minimum number and a maximum number and returns a random number from the boundaries.

gameBattleField is a member of GameCapsule and a object of BattleField.

Please let me know if you need additional information.

Last edited on

Garion (296)

I don't know if this would make a difference or not

but you have this line of code like this

1
2

        Person[i].SetPosition('y', y);
        Person[i].SetPosition('x', x);

Maybe try with the .setposition('x', x); first?

I don't know how setposition() works but that's the only spot that stands out to my eyes as being backwards.

Dyrand (5)

Person is an array of Character objects

So just this:

void Character::SetPosition(char coordinate, int position)
{
    if (coordinate == 'x')
    {this->xPosition = position;}
    if (coordinate == 'y')
    {this->yPosition = position;}
}

Dyrand (5)

I figured out what the problem was, it was a matter of a switching of my x and y earlier in my code that pretty much snow balled upon itself, causing me to switch other x's and y's to get the code to work.

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Probably a vector problem