display_encouragement_logic

gistfile1.m

-(void)performFeedbackActionIfNeeded {
    
    int index = 0;
    BOOL found = NO;
    int limit = [_logicUsedOnce count];
    
    // Loop over the array of logic blocks.
    // They'll draw the right thing as necessary.
    while (!found && (index < limit)) {
        BOOL (^checkCase)() = [_logicUsedOnce objectAtIndex:index];
        if (checkCase()) {
            [_logicUsedOnce removeObjectAtIndex:index];
            found = YES;
        }
        
        index++;
    }
    
    // If you still haven't shown anything to the user,
    // check the Repeated alerts.
    index = 0;
    limit = [_logicUsedRepeatedly count];
    while (!found && (index < limit)) {
        BOOL (^checkCase)() = [_logicUsedRepeatedly objectAtIndex:index];
        if (checkCase()) {
            found = YES;
        }
        
        index++;
    }
}