Well I am able to write the score of 100 to the screen but then I want to write a black number to the screen. Then I want to write the next highest score to the screen. Basically I am having a problem of blacking out the score so I can overwrite it. Well what it does now is it prints the score to the screen and then it overwrites it with the next highest score. I have almost solved this problem I just need someone to give me a hint.

void
 
 
drawBitmapText(char *string,float x,float y,float z) 
{ 
char
 
 
*c;
glPushAttrib(
 
GL_CURRENT_BIT);
glColor3f(1.0f,1.0f,1.0f);
glRasterPos3f(
 
x, y,z);
for
 
 
(c=string; *c != '\0'; c++) 
{
glutBitmapCharacter(
 
GLUT_BITMAP_TIMES_ROMAN_24, *c);
}
glPopAttrib();
}
void
 
 
drawBitmapText_clear(char *string,float x,float y,float z) 
{ 
char
 
 
*c;
glPushAttrib(
 
GL_CURRENT_BIT);
glColor3f(0.0f,0.0f,0.0f);
glRasterPos3f(
 
x, y,z);
for
 
 
(c=string; *c != '\0'; c++) 
{
glutBitmapCharacter(
 
GLUT_BITMAP_TIMES_ROMAN_24, *c);
}
glPopAttrib();
}
void
 
 
brick_collision()
{
 
 
GLint n=0;
 
 
if(bricks[2][4]==true)
{
n+=100;
str=itoa(n,buffer,10);
drawBitmapText_clear(str,0.0f,2.0f,0.0f); 
drawBitmapText(str,0.0f,2.0f,0.0f);
}
 
 
if(bricks[2][3]==true)
{
n+=100;
str=itoa(n,buffer,10);
drawBitmapText_clear(str,0.0f,2.0f,0.0f); 
drawBitmapText(str,0.0f,2.0f,0.0f); 
}
 
 
if(bricks[2][2]==true)
{
n+=100;
str=itoa(n,buffer,10);
drawBitmapText_clear(str,0.0f,2.0f,0.0f); 
drawBitmapText(str,0.0f,2.0f,0.0f); 
}
 
 
if(bricks[2][1]==true)
{
n+=100;
str=itoa(n,buffer,10);
drawBitmapText_clear(str,0.0f,2.0f,0.0f); 
drawBitmapText(str,0.0f,2.0f,0.0f); 
}
 
 
if(bricks[2][0]==true)
{
n+=100;
str=itoa(n,buffer,10);
drawBitmapText_clear(str,0.0f,2.0f,0.0f); 
drawBitmapText(str,0.0f,2.0f,0.0f); 
}

thanks for all the help

Maybe it is a little offtopic but you should use new modern OpenGL (3.2+), and also you should write your own font rendering class (Bitmap fonts, or TrueType) and it will be easier because new OpenGL is much cleaner and easier IMO.

I know, but I want to really finish this project then I can move on to shaders

how do you clear the buffer?

well I have used glClear(GL_COLOR_BUFFER_BIT); but it clears the entire screen.

sorry for being dense but is there an easy way to redraw the whole screen or all of it.