Example 1: python snake game code
import pygame
import time
import random
pygame.init()
white = (255, 255, 255)
yellow = (255, 255, 102)
black = (0, 0, 0)
red = (213, 50, 80)
green = (0, 255, 0)
blue = (50, 153, 213)
dis_width = 600
dis_height = 400
dis = pygame.display.set_mode((dis_width, dis_height))
pygame.display.set_caption('Snake Game by Edureka')
clock = pygame.time.Clock()
snake_block = 10
snake_speed = 15
font_style = pygame.font.SysFont("bahnschrift", 25)
score_font = pygame.font.SysFont("comicsansms", 35)
def Your_score(score):
value = score_font.render("Your Score: " + str(score), True, yellow)
dis.blit(value, [0, 0])
def our_snake(snake_block, snake_list):
for x in snake_list:
pygame.draw.rect(dis, black, [x[0], x[1], snake_block, snake_block])
def message(msg, color):
mesg = font_style.render(msg, True, color)
dis.blit(mesg, [dis_width / 6, dis_height / 3])
def gameLoop():
game_over = False
game_close = False
x1 = dis_width / 2
y1 = dis_height / 2
x1_change = 0
y1_change = 0
snake_List = []
Length_of_snake = 1
foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0
while not game_over:
while game_close == True:
dis.fill(blue)
message("You Lost! Press C-Play Again or Q-Quit", red)
Your_score(Length_of_snake - 1)
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
game_over = True
game_close = False
if event.key == pygame.K_c:
gameLoop()
for event in pygame.event.get():
if event.type == pygame.QUIT:
game_over = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x1_change = -snake_block
y1_change = 0
elif event.key == pygame.K_RIGHT:
x1_change = snake_block
y1_change = 0
elif event.key == pygame.K_UP:
y1_change = -snake_block
x1_change = 0
elif event.key == pygame.K_DOWN:
y1_change = snake_block
x1_change = 0
if x1 >= dis_width or x1 < 0 or y1 >= dis_height or y1 < 0:
game_close = True
x1 += x1_change
y1 += y1_change
dis.fill(blue)
pygame.draw.rect(dis, green, [foodx, foody, snake_block, snake_block])
snake_Head = []
snake_Head.append(x1)
snake_Head.append(y1)
snake_List.append(snake_Head)
if len(snake_List) > Length_of_snake:
del snake_List[0]
for x in snake_List[:-1]:
if x == snake_Head:
game_close = True
our_snake(snake_block, snake_List)
Your_score(Length_of_snake - 1)
pygame.display.update()
if x1 == foodx and y1 == foody:
foodx = round(random.randrange(0, dis_width - snake_block) / 10.0) * 10.0
foody = round(random.randrange(0, dis_height - snake_block) / 10.0) * 10.0
Length_of_snake += 1
clock.tick(snake_speed)
pygame.quit()
quit()
gameLoop()
Example 2: snake python
import pygame
import numpy
import random
import math
pygame.init()
clock = pygame.time.Clock()
screen = pygame.display.set_mode((377, 377))
grid = numpy.zeros((15, 15), dtype="int8")
for i in range(4):
grid[7][2+i] = 2
apple_pos = [7, 11]
grid[apple_pos[0]][apple_pos[1]] = 5
snake = [[7, 2], [7, 5]]
d = [2, 2]
direction_list = []
keys = [pygame.K_UP, pygame.K_RIGHT, pygame.K_DOWN, pygame.K_LEFT]
colors = [(0, 150, 150), (0, 255, 0), (255, 0, 0)]
frames = 0
moving = False
while True:
frames += 1
for event in pygame.event.get():
if event.type == pygame.QUIT:
quit()
if event.type == pygame.KEYDOWN:
for i in range(len(keys)):
if event.key == keys[i]:
moving = True
direction_list.append(i+1)
if moving and frames >= 10:
frames = 0
if len(direction_list) > 0:
d[1] = direction_list[0]
direction_list.pop(0)
d[0] = grid[snake[0][0]][snake[0][1]]
last_pos = [snake[0][:], snake[1][:]]
for i in range(2):
snake[i][round((d[i] % 2-1)*-1)] += round(5/24*d[i]**4 - 25/12*d[i]**3 + 151/24*d[i]**2 - 65/12*d[i])
grid[last_pos[i][0]][last_pos[i][1]] = d[i] * i
if i:
for n in range(2):
if snake[i][n] < 0 or snake[i][n] > 14:
quit()
if 5 > grid[snake[i][0]][snake[i][1]] > 0:
quit()
if snake[i] == apple_pos:
grid[last_pos[0][0]][last_pos[0][1]] = d[0]
snake[0] = last_pos[0]
while grid[apple_pos[0]][apple_pos[1]] != 0:
apple_pos = [random.randint(0, 14), random.randint(0, 14)]
grid[apple_pos[0]][apple_pos[1]] = 5
grid[snake[i][0]][snake[i][1]] = d[1]
for row in range(len(grid)):
for pos in range(len(grid[row])):
pygame.draw.rect(screen, colors[round((math.log(grid[row][pos]+1))-0.15)], (25*pos + 2, 25*row + 2, 23, 23))
clock.tick(60)
pygame.display.update()
Example 3: snake
<!DOCTYPE html>
<html>
<head>
<title></title>
<style>
html, body {
height: 100%;
margin: 0;
}
body {
background: black;
display: flex;
align-items: center;
justify-content: center;
}
canvas {
border: 1px solid white;
}
</style>
</head>
<body>
<canvas width="400" height="400" id="game"></canvas>
<script>
var canvas = document.getElementById('game');
var context = canvas.getContext('2d');
var grid = 16;
var count = 0;
var snake = {
x: 160,
y: 160,
// snake velocity. moves one grid length every frame in either the x or y direction
dx: grid,
dy: 0,
// keep track of all grids the snake body occupies
cells: [],
// length of the snake. grows when eating an apple
maxCells: 4
};
var apple = {
x: 320,
y: 320
};
// get random whole numbers in a specific range
// @see https://stackoverflow.com/a/1527820/2124254
function getRandomInt(min, max) {
return Math.floor(Math.random() * (max - min)) + min;
}
// game loop
function loop() {
requestAnimationFrame(loop);
// slow game loop to 15 fps instead of 60 (60/15 = 4)
if (++count < 4) {
return;
}
count = 0;
context.clearRect(0,0,canvas.width,canvas.height);
// move snake by it's velocity
snake.x += snake.dx;
snake.y += snake.dy;
// wrap snake position horizontally on edge of screen
if (snake.x < 0) {
snake.x = canvas.width - grid;
}
else if (snake.x >= canvas.width) {
snake.x = 0;
}
// wrap snake position vertically on edge of screen
if (snake.y < 0) {
snake.y = canvas.height - grid;
}
else if (snake.y >= canvas.height) {
snake.y = 0;
}
// keep track of where snake has been. front of the array is always the head
snake.cells.unshift({x: snake.x, y: snake.y});
// remove cells as we move away from them
if (snake.cells.length > snake.maxCells) {
snake.cells.pop();
}
// draw apple
context.fillStyle = 'red';
context.fillRect(apple.x, apple.y, grid-1, grid-1);
// draw snake one cell at a time
context.fillStyle = 'green';
snake.cells.forEach(function(cell, index) {
// drawing 1 px smaller than the grid creates a grid effect in the snake body so you can see how long it is
context.fillRect(cell.x, cell.y, grid-1, grid-1);
// snake ate apple
if (cell.x === apple.x && cell.y === apple.y) {
snake.maxCells++;
// canvas is 400x400 which is 25x25 grids
apple.x = getRandomInt(0, 25) * grid;
apple.y = getRandomInt(0, 25) * grid;
}
// check collision with all cells after this one (modified bubble sort)
for (var i = index + 1; i < snake.cells.length; i++) {
// snake occupies same space as a body part. reset game
if (cell.x === snake.cells[i].x && cell.y === snake.cells[i].y) {
snake.x = 160;
snake.y = 160;
snake.cells = [];
snake.maxCells = 4;
snake.dx = grid;
snake.dy = 0;
apple.x = getRandomInt(0, 25) * grid;
apple.y = getRandomInt(0, 25) * grid;
}
}
});
}
// listen to keyboard events to move the snake
document.addEventListener('keydown', function(e) {
// prevent snake from backtracking on itself by checking that it's
// not already moving on the same axis (pressing left while moving
// left won't do anything, and pressing right while moving left
// shouldn't let you collide with your own body)
// left arrow key
if (e.which === 37 && snake.dx === 0) {
snake.dx = -grid;
snake.dy = 0;
}
// up arrow key
else if (e.which === 38 && snake.dy === 0) {
snake.dy = -grid;
snake.dx = 0;
}
// right arrow key
else if (e.which === 39 && snake.dx === 0) {
snake.dx = grid;
snake.dy = 0;
}
// down arrow key
else if (e.which === 40 && snake.dy === 0) {
snake.dy = grid;
snake.dx = 0;
}
});
// start the game
requestAnimationFrame(loop);
</script>
</body>
</html>