Okay..... I know this isn''t about a game, but it could be useful to know once I start programming games, and I''m definently interested in game programming. Anyways, I''m making this thing that brings up flashcards of music notes. Everytime you guess a note(right or wrong), it generates a number from 0 to 12 for a new note. My problem was it kept playing the same note twice in a row, so I added this code in to make sure that didn''t happen anymore: void Right() { mScore++; SetDlgItemText(IDC_BTN_GO, "RIGHT!"); while(mNote == mOldNote) { srand( (unsigned)time( NULL ) ); mNote = rand() % 13; } Invalidate(); mOldNote = mNote; } Now, I am faced with a new problem. It keeps generating notes in patterns. For example: it will generate a 0, then a 7, then a 0, then a 7. The pattern will change slowly, but it''s still pretty bad. Why is this happening? Is there any way I can prevent it? -Forcas

quote: Original post by Forcas

Okay..... I know this isn''t about a game, but it could be useful to know once I start programming games, and I''m definently interested in game programming.

Anyways, I''m making this thing that brings up flashcards of music notes. Everytime you guess a note(right or wrong), it generates a number from 0 to 12 for a new note. My problem was it kept playing the same note twice in a row, so I added this code in to make sure that didn''t happen anymore:

void Right()
{
mScore++;
SetDlgItemText(IDC_BTN_GO, "RIGHT!");
while(mNote == mOldNote)
{
srand( (unsigned)time( NULL ) );
mNote = rand() % 13;
}
Invalidate();
mOldNote = mNote;
}

Now, I am faced with a new problem. It keeps generating notes in patterns. For example: it will generate a 0, then a 7, then a 0, then a 7. The pattern will change slowly, but it''s still pretty bad. Why is this happening? Is there any way I can prevent it?

-Forcas

Are you using the srand() function before you use rand()?
If not, doing that first should help. Also, don''t re-seed the random function again. That''s why your getting the patterns.

HTH,


Dave "Dak Lozar" Loeser

quote: Original post by Forcas

    	mScore++;	SetDlgItemText(IDC_BTN_GO, "RIGHT!");        while(mNote == mOldNote)	{		srand( (unsigned)time( NULL ) );		mNote = rand() % 13;	}	Invalidate();	mOldNote = mNote;}    

-Forcas

Call srand only once at the start of your program, not every time you want a number.

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