朝向式的移动角色示例，坦克那样移动示例

以下是部分代码预览:

"""
朝向式的移动角色示例，本程序按左右键改变角色方向，按上下键移动角色，并且图片同时会旋转。
它让角色像Python的海龟画图里的海龟一样移动。注释翻译：李兴球
"""
import arcade
import os
import math

SPRITE_SCALING = 0.5

SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600
SCREEN_TITLE = "朝向式的移动角色示例，坦克那样移动示例"

MOVEMENT_SPEED = 5
ANGLE_SPEED = 5


class Player(arcade.Sprite):
    """ 玩家类继承自角色类 """

    def __init__(self, image, scale):
        """ 初始化玩家 """

        # 调用玩家父类方法
        super().__init__(image, scale)

        # 速度变量
        self.speed = 0

class MyGame(arcade.Window):
    """
    主要的游戏类
    """

    def __init__(self, width, height, title):
        """
        Initializer        """

        # 调用父类初始化方法
        super().__init__(width, height, title)
        
        # 玩家列表
        self.player_list = None

        # 玩家角色变量的定义
        self.player_sprite = None

        # 设置背景为黑色
        arcade.set_background_color(arcade.color.BLACK)

    def setup(self):
        """ 设置游戏参数 """

        # Sprite lists
        self.player_list = arcade.SpriteList()

        # Set up the player
        self.player_sprite = Player("images/playerShip1_orange.png", SPRITE_SCALING)
        self.player_sprite.center_x = SCREEN_WIDTH / 2
        self.player_sprite.center_y = SCREEN_HEIGHT / 2
        self.player_list.append(self.player_sprite)


def main():
    """ Main method """
    window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
    window.setup()
    arcade.run()


if __name__ == "__main__":
    main()

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