recursive method question

Hi,

This is a 2 part question for a match 3 game I'm making.

part 1:

I want to run another method to remove the nodes not flagged connected after the following method flags nodes connected. The recursion does end, it's not stuck in an infinite loop.

If I add a breakpoint after calling the flagConnectedWithIndex method (or NSLog), it is never reached.

part 2:

How can I free the memory allocated for the surroundingIndices pointer?

Code:

-(void) flagConnectedWithIndex:(int)index
{

	NSMutableArray *surroundingIndices = [self getSurroundingIndices:index];
	
	for(NSNumber *num in surroundingIndices) {
		int indexNum = [num intValue];
		
		id obj = [arrayEnemyTargets_ objectAtIndex:indexNum];
		if(obj != [NSNull null]) {
			Enemytarget *t = obj;
			if(!t.isDead && !t.connected) {
				
				t.connected = YES;
				//[t setOpacity:128];
				
				[self flagConnectedWithIndex:t.index];
				
			}
		}
	}
}

Thanks a lot!

 

Thanks for your reply, Jiminaus.

Everything is executed within this. There is no point where it fails. The only problem is anything called after this method is not called.

I can't release surroundingIndices after the for loop, as it will break recursion.

 

getSurroundingIndices

Thanks chown & jiminaus.

If I autorelease the indices array in getSurroundingIndices on return, it breaks.

I tryed logging as you posted, thanks.

Code:

-(NSMutableArray*)getSurroundingIndices:(int)index
{
	NSMutableArray *indices = [NSMutableArray arrayWithCapacity:6];
	
	int bottomLeft,bottomRight,topLeft,topRight, left, right;
	
	if(index/Grid_Num_H %2 == 0) {
		
		if(index %Grid_Num_H != 0) {
			left = index - 1;								
			bottomLeft = index - Grid_Num_H -1;				
			topLeft = index + Grid_Num_H -1;				
			
			[indices addObject:[NSNumber numberWithInt:left]];
			[indices addObject:[NSNumber numberWithInt:bottomLeft]];
			[indices addObject:[NSNumber numberWithInt:topLeft]];
			 
		}
		
		right = index +1; 				
		bottomRight = index - Grid_Num_H;					
		topRight = index + Grid_Num_H;			
		if(index % Grid_Num_H != 8)
			[indices addObject:[NSNumber numberWithInt:right]];
		[indices addObject:[NSNumber numberWithInt:bottomRight]];
		[indices addObject:[NSNumber numberWithInt:topRight]];
		
		
	}	

	else {
		bottomLeft = index - Grid_Num_H;					
		left = index - 1;									
		topLeft = index + Grid_Num_H;						
		
		[indices addObject:[NSNumber numberWithInt:bottomLeft]];
		if(index % Grid_Num_H != 0)
			[indices addObject:[NSNumber numberWithInt:left]];
		[indices addObject:[NSNumber numberWithInt:topLeft]];
		
		if(index % Grid_Num_H != 8) {
			right = index + 1;								
			bottomRight = index - Grid_Num_H +1;			
			topRight = index + Grid_Num_H + 1;		
			
			[indices addObject:[NSNumber numberWithInt:right]];
			[indices addObject:[NSNumber numberWithInt:bottomRight]];
			[indices addObject:[NSNumber numberWithInt:topRight]];
		}
	}
	return indices;
}

 

-Ah, thank you.