Use python to develop "Contra" game

Use python to develop "Contra" game

Developing a complete Contra game is a huge task, which involves many aspects such as graphics rendering, physical collision, enemy AI, game levels, etc. In this short interactive, I'll show you a basic Contra-style game framework from which you can expand and refine.

First, we need to use Pygame, a game development library, to create game windows, handle user input, and display game elements. Make sure you have installed the Pygame library.

Pygame needs to run in a graphical environment and display the game window.
You can save the code into a .py file, then install Pygame locally and run the file. Here's a basic run-through:

1. Install the Pygame library: Open a command line terminal and run the following command to install the Pygame library:

pip install pygame

2. Create a new Python file (eg game.py), paste the above code into the file.

3. Place the player character image named player.png in the same directory as game.py.

4. Enter the directory where the file is located through the command line terminal, and run the following command to execute the game

python game.py

In this way, the game window will open, and you can use the up, down, left, and right arrow keys to control the movement of the player character.

Make sure you have installed the Pygame library and have an image file named player.png. If you run into any issues, please confirm the correct installation and setup to run the code correctly.

The following is a simple sample code showing how to create a simple struggle game:

import pygame
import sys

# 游戏窗口的宽度和高度
WINDOW_WIDTH = 800
WINDOW_HEIGHT = 600

# 玩家角色的宽度和高度
PLAYER_WIDTH = 50
PLAYER_HEIGHT = 50
PLAYER_SPEED = 5

# 初始化 Pygame
pygame.init()

# 创建游戏窗口
window = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
pygame.display.set_caption("魂斗罗")

# 加载玩家角色的图像
player_image = pygame.image.load("player.png")
player_rect = player_image.get_rect()
player_rect.topleft = (WINDOW_WIDTH // 2, WINDOW_HEIGHT // 2)

# 游戏主循环
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    # 处理用户输入
    keys = pygame.key.get_pressed()
    if keys[pygame.K_UP]:
        player_rect.y -= PLAYER_SPEED
    if keys[pygame.K_DOWN]:
        player_rect.y += PLAYER_SPEED
    if keys[pygame.K_LEFT]:
        player_rect.x -= PLAYER_SPEED
    if keys[pygame.K_RIGHT]:
        player_rect.x += PLAYER_SPEED

    # 绘制游戏元素
    window.fill((0, 0, 0))  # 清空窗口
    window.blit(player_image, player_rect)  # 绘制玩家角色

    # 更新屏幕
    pygame.display.flip()

In this example, we create a window, load an image of a player character, and draw the player character in the window. The player can control the movement of the character through the up, down, left, and right arrow keys. The refresh frequency of the window is determined by the main loop of the game.

Please note that this is just a simple example, elements such as enemies, weapons, levels are missing, and the logic and collision detection of the game are not implemented. Developing a complete Contra game requires more complex code and design.

If you want to develop a complete Contra game, it is recommended to study the technologies and concepts related to game development in depth, use a suitable game development engine or framework, and refer to the design and implementation methods of similar games such as Contra.

Note that game development is a complex task that requires a deep understanding of game development concepts and techniques. The above examples are just a starting point, you can learn more about game development by studying the Pygame documentation and other related resources. Good luck with your development!