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behold the working snake implimentation

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randomuser 2021-05-24 00:38:06 -05:00
parent 26de90f0e3
commit d30da1b546
1 changed files with 74 additions and 67 deletions
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141
snake.py
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@ -1,72 +1,79 @@
#!/bin/python
import random
class Game:
"""
this class describes a 5x5 grid, with a snake and
apple inside.
class Snake:
def __init__(self, bx=5, by=5):
self.snake = [
(2, 2),
(2, 1),
(2, 0)
]
self.gamestate = "playing"
self.boarddimensions = (bx, by)
self.directions = [
(-1, 0, "left"),
(0, -1, "down"),
(1, 0, "right"),
(0, 1, "up")
]
self.apple = (random.randrange(0, self.boarddimensions[0]),
random.randrange(0, self.boarddimensions[0]))
def moveset(self):
tmp = []
for i, j, text in self.directions:
tmp.append(
(self.snake[0][0] + i,
self.snake[0][1] + j,
text)
)
coordinates are akin to a quadrant I cartesian plane, e.g.
^
5|
4|
y 3|
2|
1|
+----->
12345
for i, j, text in tmp:
if (i, j) == self.snake[1]:
tmp.remove((i, j, text))
x
"""
def __init__(self):
self.snake = []
self.apple = (0, 0)
for i in range(3):
self.snake.append((3, i + 1))
self.snake.reverse()
self.newapple()
def newapple(self):
candidate = (random.randint(1, 5), random.randint(1, 5))
if candidate in self.snake:
candidate = self.newapple()
return candidate
def subtracttuple(self, a, b):
return (a[0] - b[0], a[1] - b[1])
def addtuple(self, a, b):
return (a[0] + b[0], a[1] + b[1])
def returndirections(self):
permute = []
directions = []
permute.append((self.snake[0][0], self.snake[0][0] + 1))
permute.append((self.snake[0][0], self.snake[0][0] - 1))
permute.append((self.snake[0][0], self.snake[0][1] + 1))
permute.append((self.snake[0][0], self.snake[0][1] - 1))
for i in permute:
if not i[0] < 0 and \
not i[0] > 5 and \
not i[1] < 0 and \
not i[1] > 5:
directions.append(self.subtracttuple(i, self.snake[0]))
return directions
def cycle(self, direction):
if direction in self.returndirections():
self.snake.insert(0, self.addtuple(self.snake[0], direction))
if not self.snake[0] == self.apple:
self.snake.pop(-1)
self.newapple()
if self.snake[0] in self.snake[1:]:
return 'game end'
else:
return 'invalid'
def render(self): # very inefficent, fix later
for y in range(5):
line = []
for x in range(5):
if (x + 1, y + 1) in self.snake:
line.append("x")
elif (x + 1, y + 1) == self.apple:
line.append("a")
for i, j, text in tmp:
if i < 0 or i > self.boarddimensions[0] - 1:
tmp.remove((i, j, text))
break
if j < 0 or j > self.boarddimensions[1] - 1:
tmp.remove((i, j, text))
break
return tmp
def nodir(self):
tmp = []
for i, j, _ in self.moveset():
tmp.append((i, j))
return tmp
def move(self, direction):
for i in self.directions:
if direction == i[2]:
considered = (self.snake[0][0] + i[0],
self.snake[0][1] + i[1])
if considered in self.snake:
self.gamestate = "gameover"
if considered in self.nodir():
self.snake.insert(0, considered)
if self.apple != considered:
self.snake.pop()
else:
line.append("-")
print(' '.join(line))
c = (random.randrange(0, self.boarddimensions[0] - 1), random.randrange(0, self.boarddimensions[1] - 1))
while c in self.snake:
c = (random.randrange(0, self.boarddimensions[0] - 1), random.randrange(0, self.boarddimensions[1] - 1))
self.apple = c
def render(self):
tmp = []
for j in range(self.boarddimensions[0] - 1, -1, -1):
tmp.append([])
current = tmp[-1]
for i in range(0, self.boarddimensions[1]):
if (i, j) in self.snake:
if (i, j) == self.snake[0]:
current.append('X')
else:
current.append('x')
elif (i, j) == self.apple:
current.append('a')
else:
current.append('_')
return tmp