C++ creating a forest - c++

Question

am new to c++ and am trying to create a burning forest simulator. I have been trying to call a function from the forest class but i dont know how to give it an argument, if anyone could help that would be great here is the code that i have at the moment.
using namespace std;
class ForestSetup
{
private:
const char Tree = '^';
const char Fire = '*';
const char emptySpace = '.';
const char forestBorder = '#';
const int fireX = 10;
const int fireY = 10;
char forest[21][21];
public:
void CreateForest()
{
// this function is to create the forest
for (int i = 0; i < 21; i++) // this sets the value of the rows from 0 to 20
{
for (int j = 0; j < 21; j++) // this sets the value of the columns from 0 to 20
{
if (i == 0 || i == 20)
{
forest[i][j] = forestBorder; // this creates the north and south of the forest border
}
else if (j == 0 || j == 20)
{
forest[i][j] = forestBorder; // this creates the east and the west forest border
}
else
{
forest[i][j] = Tree; // this filles the rest of the arrays with trees
}
}
}
forest[fireX][fireY] = Fire; // this sets the fire in the middle of the grid
}
void ShowForest(char grid[21][21])
{
for (int i = 0; i < 21; i++)
{
for (int j = 0; j < 21; j++)
{
cout << grid[i][j];
}
cout << endl;
}
}
};
int main(void)
{
ForestSetup myForest;
myForest.ShowForest();
system("Pause");
return 0;
}

Answer 1

Let's say you have a setOnFire function with the x and y co-ordinates of where you want to start the fire.
public:
setOnFire(int x, int y)
{
// Code to flag that part of the forest on fire
}
In your main, you would call it with
myForest.setOnFire(5,5);
Within the ForestSetup class you just need setOnFire(5,5);
This tutorials point article might help.