Hi,
I'm working on a strategy game in which a NSMutableArray called 'army'
contains a series of Unit objects. Each Unit contains a property
called next_unit, which is a pointer to the next unit in the array -
I'm implementing a linked-list so that units can be moved sequentially.
Army starts off with six units, which are assigned one at a time to
the array:
for(i=0;i<6;i++){
u = [[Unit alloc] initWithPositionX:24+i Y:14-i];
[army addObject:u];
...
[u release];
}
Obviously when the first unit is added, there's nothing for next_unit
to point to, so I have to go back and do it on the next loop
iteration, which is where my problem arises:
if(i > 0) [army objectAtIndex:i-1].next_unit = [army lastObject];
Clearly, what I want to do is get the next-to-last unit in army and
point its next_unit pointer to the most recently added unit. However,
XCode she don't-a like this:
error: request for member 'next_unit' in something not a structure or
union
Is there a recommended way for accessing an ivar with synthesized
gettors/settors, that belongs to a returned object?
I hope I've explained my problem clearly enough. Thanks for an advice
you may offer.
Mark
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