├── prob1.py
├── prob2.py
└── prob3.py


/prob1.py:
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 1 | """
 2 |     File: prob1.py
 3 |     Author: Xin Li
 4 |     Purpose: In this program, it will have one class each
 5 |     (Color, and Room, respectively).
 6 | """
 7 | 
 8 | class Simplest:
 9 |     def __init__(self,val1,val2,val3):
10 |         self.a = val1
11 |         self.b = val2
12 |         self.c = val3
13 | 
14 | 
15 | 
16 | class Rotate:
17 |     def __init__(self,first,second,third):
18 |         self._first = first
19 |         self._second = second
20 |         self._third = third
21 |     def get_first(self):
22 |         return self._first
23 |     def get_second(self):
24 |         return self._second
25 |     def get_third(self):
26 |         return self._third
27 |     def rotate(self):
28 |         temp = self._first
29 |         self._first = self._second
30 |         self._second = self._third
31 |         self._third = temp
32 | 
33 | 
34 | 
35 | 
36 | class Band:
37 |     def __init__(self,singer):
38 |         '''
39 |         Constructor. It should store the singer it is passed,
40 |         set the drummer to None, and record that the band
41 |         dose not (yet) have any guitar players.
42 |         '''
43 |         self._singer = singer
44 |         self._drummer = None
45 |         self._guitar_player = []
46 |     def get_singer(self):
47 |         return self._singer
48 |     def set_singer(self,new_singer):
49 |         self._singer = new_singer
50 |     def get_drummer(self):
51 |         return self._drummer
52 |     def set_drummer(self, new_drummer):
53 |         self._drummer = new_drummer
54 |     def add_guitar_player(self, new_guitar_player):
55 |         self._guitar_player.append(new_guitar_player)
56 |     def fire_all_guitar_players(self):
57 |         self._guitar_player = []
58 |     def get_guitar_players(self):
59 |         return self._guitar_player[:]
60 |     def play_music(self):
61 |         if self._singer =="Frank Sinatra":
62 |             print('Do be do be do')
63 |         elif self._singer =="Kurt Cobain":
64 |             print('bargle nawdle zouss')
65 |         else:
66 |             print("La la la")
67 |         if self._drummer != None:
68 |             print("Bang bang bang!")
69 |         for i in self._guitar_player:
70 | 


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/prob2.py:
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 1 | """
 2 |     File: prob2.py
 3 |     Author: Xin Li
 4 |     Purpose: In this program
 5 | """
 6 | class Color:
 7 |     def __init__(self, r,g,b):
 8 |         if r> 255:
 9 |             r = 255
10 |         if r< 0:
11 |             r =0
12 |         if g> 255:
13 |             g = 255
14 |         if g< 0:
15 |             g =0
16 |         if b> 255:
17 |             b = 255
18 |         if b< 0:
19 |             b =0
20 |         self._r = r
21 |         self._g = g
22 |         self._b = b
23 | 
24 |     def __str__(self):
25 |         return 'rgb('+str(self._r)+','+str(self._g)+','+str(self._b)+')'
26 |     def html_hex_color(self):
27 |         return f"#{self._r:02X}{self._g:02X}{self._b:02X}"
28 |     def get_rgb(self):
29 |         return (self._r, self._g, self._b)
30 |     def set_standard_color(self, name):
31 |         assert name.lower() =='red' \
32 |         or name.lower() == 'yellow' \
33 |         or name.lower() == 'white' \
34 |         or name.lower() == 'black'
35 |         if name.lower() =="red":
36 |             self._r = 255
37 |             self._g = 0
38 |             self._b = 0
39 |         if name.lower() =="yellow":
40 |             self._r = 255
41 |             self._g = 255
42 |             self._b = 0
43 |         if name.lower() =="black":
44 |             self._r = 0
45 |             self._g = 0
46 |             self._b = 0
47 |         if name.lower() =="white":
48 |             self._r = 255
49 |             self._g = 255
50 |             self._b = 255
51 |     def remove_red(self):
52 |         self._r = 0
53 | 


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/prob3.py:
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 1 | """
 2 |     File: prob3.py
 3 |     Author: Xin Li
 4 |     Purpose: In this program
 5 | """
 6 | class Room:
 7 |     def __init__(self,name):
 8 |         self._name = name
 9 |         self.n = None
10 |         self.e = None
11 |         self.s = None
12 |         self.w = None
13 |     def get_name(self):
14 |         return self._name
15 |     def set_name(self,name):
16 |         self._name = name
17 |     def collapse_room(self):
18 |         if self.s is not None:
19 |             self.s.n  = None
20 |         if self.n is not None:
21 |             self.n.s = None
22 |         if self.e is not None:
23 |             self.e.w = None
24 |         if self.w is not None:
25 |             self.w.e = None
26 | 
27 |         self.n = None
28 |         self.e = None
29 |         self.s = None
30 |         self.w = None
31 | 
32 | 
33 | def build_grid(wid,hei):
34 |     lst = []
35 |     for b in range(hei):
36 |         lst1 = []
37 |         for a in range(wid):
38 |             lst1.append(Room('('+str(a)+','+str(b)+')'))
39 |         lst.append(lst1)
40 |     for i in range(hei):
41 |         for j in range(wid):
42 |             if i != 0:
43 |                 lst[i][j].n = lst[i-1][j]
44 |             if i != hei-1:
45 |                 lst[i][j].s = lst[i+1][j]
46 |             if j != 0:
47 |                 lst[i][j].w = lst[i][j-1]
48 |             if j != wid-1:
49 |                 lst[i][j].e = lst[i][j+1]
50 |     return lst[hei-1][0]
51 | 


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