-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathsnake.py
246 lines (202 loc) · 6.19 KB
/
snake.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
import math
import random
import pygame
import tkinter as tk
from tkinter import messagebox
import matplotlib
matplotlib.use('TkAgg') #to avoid potential crash
import matplotlib.pyplot as plt
fig = plt.figure()
WHITE = (255,255,255)
BLACK = (0,0,0)
RED = (255,0,0)
GREEN = (0,255,0)
BLUE = (0,0,255)
YELLOW = (255,255,0)
GRAY = (128,128,128)
MAROON = (128,0,0)
PURPLE = (75,0,130)
print("RULES: Use arrow keys to move\n Touching yourself is a loss of game\n Touching a wall is a loss of game unless you are starting\n Collect as many apples as you can!")
color_user = input("What color would you like for your snake?\n'r' for red\n'g' for green\n'b' for blue\n'y' for yellow\n'm' for maroon\n'p' for purple\n DEFAULT IS GREEN\nEnter: ")
if color_user[0].lower()=='g':
col = GREEN
elif color_user[0].lower()=='b':
col = BLUE
elif color_user[0].lower()=='y':
col = YELLOW
elif color_user[0].lower()=='m':
col = MAROON
elif color_user[0].lower()=='p':
col = PURPLE
elif color_user[0].lower()=='r':
col = RED
else:
col = GREEN
class cube(object):
rows = 20 #20 rows/columns. Decreasing this number would make it harder and vice versa
w = 500 #screen width
def __init__(self,start,dirx=0, diry=0, color=(col)):
self.pos = start
self.dirx = 0 #snake begins as still with a movement of 0x and 0y.
self.diry = 0
self.color = color
def move(self,dirx,diry):
self.dirx = dirx
self.diry = diry
self.pos = (self.pos[0]+ self.dirx, self.pos[1] + self.diry)#updates snake position to move
def draw(self, surface, eyes=False):
dis = self.w//self.rows
i = self.pos[0]
j = self.pos[1]
pygame.draw.rect(surface, self.color, (i*dis+1, j*dis+1, dis-2, dis-2))
if eyes:
center = dis//2
rad = 3
circleMiddle = (i*dis+center-rad,j*dis+8)#equation for eyes
circleMiddle2 = (i*dis + dis -rad*2, j*dis+8)
pygame.draw.circle(surface, WHITE, circleMiddle, rad)#drawing eyes
pygame.draw.circle(surface, WHITE, circleMiddle2, rad)
class snake(object):
body = []
turns = {}
def __init__(self, color, pos):
self.color = color
self.head = cube(pos)
self.body.append(self.head)
self.dirx = 0
self.diry = 0
def move(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
keys = pygame.key.get_pressed()
#user uses arrow keys to move:
for key in keys:
if keys[pygame.K_LEFT]:
self.dirx=-1
self.diry=0
self.turns[self.head.pos[:]] = [self.dirx, self.diry]
elif keys[pygame.K_RIGHT]:
self.dirx=1
self.diry=0
self.turns[self.head.pos[:]] = [self.dirx, self.diry]
elif keys[pygame.K_UP]:
self.dirx=0
self.diry=-1
self.turns[self.head.pos[:]] = [self.dirx, self.diry]
elif keys[pygame.K_DOWN]:
self.dirx=0
self.diry=1
self.turns[self.head.pos[:]] = [self.dirx, self.diry]
for i, c in enumerate(self.body):
p = c.pos[:]
if p in self.turns:
turn = self.turns[p]
c.move(turn[0], turn[1])
if i==len(self.body)-1:
self.turns.pop(p)
else:
#if snake touches wall with a length longer than 1, game over as the following code makes the snake touch itself
if c.dirx == -1 and c.pos[0] <= 0:
c.pos = (0, c.pos[1])
elif c.dirx == 1 and c.pos[0] >= c.rows-1:
c.pos = (rows-1,c.pos[1])
elif c.diry == 1 and c.pos[1] >= c.rows-1:
c.pos = (c.pos[0], rows-1)
elif c.diry == -1 and c.pos[1] <= 0:
c.pos = (c.pos[0], 0)
else:
c.move(c.dirx, c.diry)#if it is not touching a wall, proceed as usual
def reset(self,pos):
self.head = cube(pos)
self.body = []
self.body.append(self.head)
self.turns = {}
self.dirx = 0
self.diry = 0
def addCube(self):
tail = self.body[-1]
dx = tail.dirx
dy = tail.diry
if dx==1 and dy==0:
self.body.append(cube((tail.pos[0]-1, tail.pos[1]))) #if tail is moving right, add a tail to the end at the left
elif dx==-1 and dy==0:
self.body.append(cube((tail.pos[0]+1, tail.pos[1]))) #if tail is moving left, add a tail to the end at the right
elif dx==0 and dy==-1:
self.body.append(cube((tail.pos[0], tail.pos[1]+1))) #if tail is moving up, add a tail to the end at the bottom
elif dx==0 and dy==1:
self.body.append(cube((tail.pos[0], tail.pos[1]-1))) #if tail is moving down, add a tail to the end at the top
self.body[-1].dirx = dx
self.body[-1].diry = dy
def draw(self, surface):
for i, c in enumerate(self.body):
if i==0:
c.draw(surface, True) #if it's the head, eyes = True
else:
c.draw(surface)
def drawGrid(w, rows, surface):
sizeBetween = w//rows
x = 0
y = 0
for l in range(rows):
x+= sizeBetween
y+= sizeBetween
pygame.draw.line(surface, (WHITE), (x,0), (x,w)) #draw lines on grid
pygame.draw.line(surface, (WHITE), (0,y), (w,y))
def clearWindow(surface):
global rows, width, s, snack
surface.fill(BLACK)
s.draw(surface)
snack.draw(surface)
drawGrid(width, rows, surface)
pygame.display.update()
def randomSnack(rows, item):
positions = item.body
while True:
x = random.randrange(rows)
y = random.randrange(rows)
if len(list(filter(lambda z:z.pos == (x,y),positions)))>0: #generate new snack in a logical place on the grid
continue
else:
break
return (x,y)
def message(subject, content):
root = tk.Tk()
root.attributes("-topmost", True)
root.withdraw()
messagebox.showinfo(subject, content) #using tkinter for a message
try:
root.destroy()
except:
pass
def main():
global width,height,rows,s,snack,col
width = 500
height = 500
rows = 20
window = pygame.display.set_mode((width,height))
s = snake(col, (10,10))
if col==RED or col==MAROON:
apple_color = GREEN
else:
apple_color = RED
snack = cube(randomSnack(rows, s), color=apple_color)
run = True
clock = pygame.time.Clock()
while run:
pygame.time.delay(50)
clock.tick(10)
s.move()
if s.body[0].pos == snack.pos: #add a cube if the snake gets to the snack
s.addCube()
snack = cube(randomSnack(rows, s), color=apple_color) #generate new snack
for x in range(len(s.body)):
if s.body[x].pos in list(map(lambda z:z.pos,s.body[x+1:])): #if snake touches itself the game is over
print("\nSCORE: ", len(s.body)) #display user score
message("GAME OVER", "PLAY AGAIN...")
s.reset((10,10))
break
clearWindow(window)
pass
main()
pygame.quit()