Course Link: http://skl.sh/11kA0im Website: http://iPhoneDev.tv

1. Paul Solt
iPhoneDev.tv
Loops
Can you repeat what you said again?

2. Paul Solt
iPhoneDev.tv
Overview
•Loops
•while loop
•for loop
•break
•continue

3. Paul Solt
iPhoneDev.tv
Loops
•Why?
•Data processing
•Image processing
•Gameplay

4. Paul Solt
iPhoneDev.tv
Count Down
T-minus 5 seconds
T-minus 4 seconds
T-minus 3 seconds
T-minus 2 seconds
T-minus 1 seconds
Take off!

5. Paul Solt
iPhoneDev.tv
while loop
// 1. Setup
while( /* 2. Condition */ ) {
// 3. Do work
// 4. Condition step
}

6. Paul Solt
iPhoneDev.tv
while loop
int seconds = 5;
while(seconds > 0) {
printf("T-minus %d secondsn", seconds);
seconds--;
}
printf("Take off!");

7. Paul Solt
iPhoneDev.tv
for loop
for( /* 1. Setup */ ;
/* 2. Condition */ ;
/* 3. Condition step */) {
// 4. Do Work
}

8. Paul Solt
iPhoneDev.tv
for loop
int seconds;
for(seconds = 5; seconds > 0; seconds--) {
printf("T-minus %d secondsn", seconds);
}
printf("Take off!");

9. Paul Solt
iPhoneDev.tv
break
for(seconds = 5; seconds > 0; seconds--) {
if(engineFailure) {
break;
}
printf("T-minus %d secondsn", seconds);
}

10. Paul Solt
iPhoneDev.tv
continue
while(!gameOver) {
if(skipCardPlayed) {
nextPerson();
continue;
}
playCard();
nextPerson();
}

11. Paul Solt
iPhoneDev.tv
Review
•while loop
•for loop
•break
•continue

12. Paul Solt
iPhoneDev.tv