這個遊戲其實不難，我是用PyQt5的套件來實現我的視窗系統：先開視窗，產生20x20個Label，然後再用一個Queue來記錄蛇的位置，再來隨機放置紅點，使用一個timer來計時，每0.2秒觸發一次檢查程式並使蛇前進，寫出一個判斷是否碰觸到蛇身的函數，再穿插簡單的判斷，那整個程式就完成了。
不囉嗦，以下就是完整程式碼，請參考。如有任何問題，歡迎隨時跟我討論。
from PyQt5.QtWidgets import QWidget, QLabel
from PyQt5.QtCore import QTimer, Qt
import random
class Point:
pass
bonus = Point()
GAME_ROW = 20
GAME_COL = 20
GRID_WIDTH = 20
GRID_HEIGHT = 20
SNAKE_INIT_ROW = 10
SNAKE_INIT_LEMGTH = 5
SNAKE_Q_LENGTH = GAME_ROW * GAME_COL + 100
SNAKE_COLOR = "background-color:#ffffff;"
SNAKE_HEAD_COLOR = "background-color:#ffff00;"
BONUS_COLOR = "background-color:#ff0000;"
BG_COLOR = "background-color:#000000;"
snake_head = SNAKE_INIT_LEMGTH - 1
snake_tail = 0
SNAKE_ADD_LENGTH = 5
snake_move = 1
class myWindow(QWidget):
def __init__(self):
super().__init__()
def keyPressEvent(self, event):
global snake_dir
if event.key() == Qt.Key_Up:
if snake_dir != 2:
snake_dir = 1
if event.key() == Qt.Key_Down:
if snake_dir != 1:
snake_dir = 2
if event.key() == Qt.Key_Left:
if snake_dir != 4:
snake_dir = 3
if event.key() == Qt.Key_Right:
if snake_dir != 3:
snake_dir = 4
window = myWindow()
def inside_snake(mode, x, y):
#print('inside_snake():')
global snake_q, snake_head, snake_tail, SNAKE_Q_LENGTH
s = snake_head
e = snake_tail
if mode == 1:
if x == snake_q[s].x and y == snake_q[s].y:
#print('inside_snake(1)')
return True
while True:
s -= 1
if s == -1:
s = SNAKE_Q_LENGTH - 1
if x == snake_q[s].x and y == snake_q[s].y:
#print('inside_snake(0)')
return True
if s == e:
break
return False
def new_bonus():
global bonus, grids, GAME_COL, GAME_ROW, BONUS_COLOR
while True:
bonus.x = random.randint(0, GAME_COL-1)
bonus.y = random.randint(0, GAME_ROW-1)
if not inside_snake(1, bonus.x, bonus.y):
break
#print('new_bonus():', bonus.x, bonus.y)
grids[bonus.y][bonus.x].setStyleSheet(BONUS_COLOR)
def game_init():
global GAME_ROW, GAME_COL, grids, BG_COLOR, SNAKE_INIT_LEMGTH, snake_q, snake_head, snake_tail, snake_dir, game_mode, snake_move, score
for i in range(GAME_ROW):
for j in range(GAME_COL):
grids[i][j].setStyleSheet(BG_COLOR)
for i in range(SNAKE_INIT_LEMGTH):
snake_q[i].y = SNAKE_INIT_ROW;
snake_q[i].x = i;
grids[SNAKE_INIT_ROW][i].setStyleSheet(SNAKE_COLOR)
snake_head = SNAKE_INIT_LEMGTH - 1
snake_tail = 0;
grids[snake_q[snake_head].y][snake_q[snake_head].x].setStyleSheet(SNAKE_HEAD_COLOR)
while True:
snake_dir = random.randint(1, 4)
if snake_dir != 3:
break
game_mode = 1
snake_move = 1
score = 0
new_bonus()
#--------------------------------- main program ----------------------------------------------
grids = []
for y in range(GAME_COL):
g_row=[] #for 1 row only
for x in range(GAME_ROW):
g = QLabel(window)
g.setStyleSheet(BG_COLOR) #set all grids with black color
g.setFixedSize(GRID_WIDTH, GRID_HEIGHT)
g.move(GRID_WIDTH*x, GRID_HEIGHT*y)
g_row.append(g)
grids.append(g_row) #create 2-D array of grids
snake_q = []
for i in range(SNAKE_Q_LENGTH):
p = Point()
snake_q.append(p)
for i in range(SNAKE_INIT_LEMGTH):
p = Point()
p.y = SNAKE_INIT_ROW
p.x = i
snake_q[i] = p
grids[SNAKE_INIT_ROW][i].setStyleSheet(SNAKE_COLOR)
grids[snake_q[snake_head].y][snake_q[snake_head].x].setStyleSheet(SNAKE_HEAD_COLOR)
while True:
snake_dir = random.randint(1, 4)
if snake_dir != 3:
break
game_mode = 1
snake_move = 1
score = 0
new_bonus()
timer = QTimer(window)
def timer_tick():
global snake_q, snake_head, SNAKE_Q_LENGTH, GAME_ROW, GAME_COL, timer, SNAKE_ADD_LENGTH, snake_move, score, snake_tail, BONUS_COLOR
#print('snake_q len=', len(snake_q), 'snake_head=', snake_head)
y = snake_q[snake_head].y
x = snake_q[snake_head].x
snake_head += 1
if snake_head == SNAKE_Q_LENGTH:
snake_head = 0
snake_q[snake_head].y = y
snake_q[snake_head].x = x
if snake_dir == 1:
snake_q[snake_head].y -= 1
if snake_q[snake_head].y < 0:
snake_q[snake_head].y = GAME_ROW - 1
if snake_dir == 2:
snake_q[snake_head].y += 1
if snake_q[snake_head].y >= GAME_ROW:
snake_q[snake_head].y = 0
if snake_dir == 3:
snake_q[snake_head].x -= 1
if snake_q[snake_head].x < 0:
snake_q[snake_head].x = GAME_COL - 1
if snake_dir == 4:
snake_q[snake_head].x += 1
if snake_q[snake_head].x >= GAME_COL:
snake_q[snake_head].x = 0
grids[snake_q[snake_head].y][snake_q[snake_head].x].setStyleSheet(SNAKE_HEAD_COLOR)
grids[y][x].setStyleSheet(SNAKE_COLOR)
if inside_snake(1, bonus.x, bonus.y):
new_bonus()
snake_move += SNAKE_ADD_LENGTH
score += 100
print('score=', score)
if inside_snake(0, snake_q[snake_head].x, snake_q[snake_head].y):
print('game over')
timer.stop()
game_init()
timer.start()
return
if snake_move == 1:
grids[snake_q[snake_tail].y][snake_q[snake_tail].x].setStyleSheet(BG_COLOR)
snake_tail += 1
if snake_tail == SNAKE_Q_LENGTH:
snake_tail = 0
else:
snake_move -= 1
window.show()
timer.timeout.connect(timer_tick)
timer.start(200)
