The only piece of the "sandwich" of elements we haven't seen in detail is the mole itself, so let's visit the mole spawning method to see how the mole fits in with our design:
-(void) spawnMole:(id)sender {
// Spawn a new mole from a random, unoccupied hill
NSInteger newMoleHill;
BOOL isApprovedHole = FALSE;
NSInteger rand;
if (molesInPlay == [moleHillsInPlay count] ||
molesInPlay == maxMoles) {
// Holes full, cannot spawn a new mole
} else {
// Loop until we pick a hill that isn't occupied
do {
rand = CCRANDOM_0_1() * maxHills;
if (rand > maxHills) { rand = maxHills; }
MXMoleHill *testHill = [moleHillsInPlay
objectAtIndex:rand];
// Look for an unoccupied hill
if ([testHill isOccupied] == NO) {
newMoleHill = rand;
isApprovedHole = YES;
[testHill setIsOccupied:YES];
}
} while...