Update console without flickering - c++

Question

I\'m attempting to make a console side scrolling shooter, I know this isn\'t the ideal medium for it but I set myself a bit of a challenge.

The problem is that whene

Answer 1

One method is to write the formatted data to a string (or buffer) then block write the buffer to the console.

Every call to a function has an overhead. Try go get more done in a function. In your Output, this could mean a lot of text per output request.

For example:

static char buffer[2048];
char * p_next_write = &buffer[0];
for (int y = 0; y < MAX_Y; y++)
{
    for (int x = 0; x < MAX_X; x++)
    {
        *p_next_write++ = battleField[x][y];
    }
    *p_next_write++ = '\n';
}
*p_next_write = '\0'; // "Insurance" for C-Style strings.
cout.write(&buffer[0], std::distance(p_buffer - &buffer[0]));

I/O operations are expensive (execution-wise), so the best use is to maximize the data per output request.