Home > Article > Backend Development > Snake game example written in Python_python
This article mainly introduces the example of the Snake game written in Python. It is a hands-on work that is fun and can learn something. Friends who need it can refer to it
This is the first time to write this kind of comparison in Python It’s practical and fun, just practice it
Game instructions:
* P key controls “pause/start”
* Arrow keys control the direction of the snake
The source code is as follows:
Copy code The code is as follows:
from Tkinter import * import tkMessageBox,sys from random import randint class Grid(object): def __init__(self,master=None,window_width=800,window_height=600,grid_width=50,offset=10): self.height = window_height self.width = window_width self.grid_width = grid_width self.offset = offset self.grid_x = self.width/self.grid_width self.grid_y = self.height/self.grid_width self.bg = "#EBEBEB" self.canvas = Canvas(master, width=self.width+2*self.offset, height=self.height+2*self.offset, bg=self.bg) self.canvas.pack() self.grid_list() def draw(self, pos, color,): x = pos[0]*self.grid_width + self.offset y = pos[1]*self.grid_width + self.offset self.canvas.create_rectangle(x, y, x+self.grid_width, y+self.grid_width,fill=color,outline=self.bg) def grid_list(self): grid_list = [] for y in range(0,self.grid_y): for x in range(0,self.grid_x): grid_list.append((x,y)) self.grid_list = grid_list class Food(object): def __init__(self, Grid): self.grid = Grid self.color = "#23D978" self.set_pos() def set_pos(self): x = randint(0,self.grid.grid_x - 1) y = randint(0,self.grid.grid_y - 1) self.pos = (x, y) def display(self): self.grid.draw(self.pos,self.color) class Snake(object): def __init__(self, Grid): self.grid = Grid self.body = [(10,6),(10,7),(10,8)] self.direction = "Up" self.status = ['run','stop'] self.speed = 300 self.color = "#5FA8D9" self.food = Food(self.grid) self.display_food() self.gameover = False self.score = 0 def available_grid(self): return [i for i in self.grid.grid_list if i not in self.body[2:]] def change_direction(self, direction): self.direction = direction def display(self): for (x,y) in self.body: self.grid.draw((x,y),self.color) def display_food(self): while(self.food.pos in self.body): self.food.set_pos() self.food.display() def move(self): head = self.body[0] if self.direction == 'Up': new = (head[0], head[1]-1) elif self.direction == 'Down': new = (head[0], head[1]+1) elif self.direction == 'Left': new = (head[0]-1,head[1]) else: new = (head[0]+1,head[1]) if not self.food.pos == head: pop = self.body.pop() self.grid.draw(pop,self.grid.bg) else: self.display_food() self.score += 1 self.body.insert(0,new) if not new in self.available_grid(): self.status.reverse() self.gameover = True else: self.grid.draw(new,color=self.color) class SnakeGame(Frame): def __init__(self,master=None, *args, **kwargs): Frame.__init__(self, master) self.master = master self.grid = Grid(master=master,*args, **kwargs) self.snake = Snake(self.grid) self.bind_all("", self.key_release) self.snake.display() def run(self): if not self.snake.status[0] == 'stop': self.snake.move() if self.snake.gameover == True: message = tkMessageBox.showinfo("Game Over", "your score: %d" % self.snake.score) if message == 'ok': sys.exit() self.after(self.snake.speed,self.run) def key_release(self, event): key = event.keysym key_dict = {"Up":"Down","Down":"Up","Left":"Right","Right":"Left"} if key_dict.has_key(key) and not key == key_dict[self.snake.direction]: self.snake.change_direction(key) self.snake.move() elif key == 'p': self.snake.status.reverse() if __name__ == '__main__': root = Tk() snakegame = SnakeGame(root) snakegame.run() snakegame.mainloop()
The above is the detailed content of Snake game example written in Python_python. For more information, please follow other related articles on the PHP Chinese website!