state pattern explained

48:48

45:02

20:51

20:50

1:02:17

4:35

2:15

6:50

1:27

2:27

3:23

10:41

6:08

9:15

4:25

3:18

8:04

3:05

7:21

4:50

5:56

4:37

5:47

2:38

3:53

3:20

1:40

2:58

8:00

9:01

23:14

10:27

3:34

2:25

14:07

7:27

18:11

3:00

2:18

17:24