153 lines
4.2 KiB
Python
153 lines
4.2 KiB
Python
"""
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Move Sprite with Joystick
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Simple program to show basic sprite usage.
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Artwork from http://kenney.nl
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If Python and Arcade are installed, this example can be run from the command line with:
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python -m arcade.examples.sprite_move_joystick
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"""
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import arcade
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import os
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SPRITE_SCALING = 0.5
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SCREEN_WIDTH = 800
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SCREEN_HEIGHT = 600
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SCREEN_TITLE = "Move Sprite with Joystick Example"
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MOVEMENT_SPEED = 5
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DEAD_ZONE = 0.05
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class Player(arcade.Sprite):
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def __init__(self, filename, scale):
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super().__init__(filename, scale)
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joysticks = arcade.get_joysticks()
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if joysticks:
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self.joystick = joysticks[0]
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self.joystick.open()
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else:
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print("There are no Joysticks")
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self.joystick = None
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def update(self):
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if self.joystick:
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self.change_x = self.joystick.x * MOVEMENT_SPEED
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# Set a "dead zone" to prevent drive from a centered joystick
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if abs(self.change_x) < DEAD_ZONE:
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self.change_x = 0
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self.change_y = -self.joystick.y * MOVEMENT_SPEED
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# Set a "dead zone" to prevent drive from a centered joystick
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if abs(self.change_y) < DEAD_ZONE:
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self.change_y = 0
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self.center_x += self.change_x
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self.center_y += self.change_y
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if self.left < 0:
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self.left = 0
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elif self.right > SCREEN_WIDTH - 1:
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self.right = SCREEN_WIDTH - 1
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if self.bottom < 0:
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self.bottom = 0
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elif self.top > SCREEN_HEIGHT - 1:
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self.top = SCREEN_HEIGHT - 1
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class MyGame(arcade.Window):
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"""
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Main application class.
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"""
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def __init__(self, width, height, title):
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"""
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Initializer
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"""
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# Set the working directory (where we expect to find files) to the same
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# directory this .py file is in. You can leave this out of your own
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# code, but it is needed to easily run the examples using "python -m"
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# as mentioned at the top of this program.
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file_path = os.path.dirname(os.path.abspath(__file__))
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os.chdir(file_path)
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# Call the parent class initializer
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super().__init__(width, height, title)
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# Variables that will hold sprite lists
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self.all_sprites_list = None
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# Set up the player info
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self.player_sprite = None
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# Set the background color
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arcade.set_background_color(arcade.color.AMAZON)
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def setup(self):
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""" Set up the game and initialize the variables. """
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# Sprite lists
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self.all_sprites_list = arcade.SpriteList()
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# Set up the player
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self.player_sprite = Player("images/character.png", SPRITE_SCALING)
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self.player_sprite.center_x = 50
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self.player_sprite.center_y = 50
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self.all_sprites_list.append(self.player_sprite)
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def on_draw(self):
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"""
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Render the screen.
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"""
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# This command has to happen before we start drawing
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arcade.start_render()
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# Draw all the sprites.
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self.all_sprites_list.draw()
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def update(self, delta_time):
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""" Movement and game logic """
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# Call update on all sprites (The sprites don't do much in this
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# example though.)
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self.all_sprites_list.update()
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def on_key_press(self, key, modifiers):
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"""Called whenever a key is pressed. """
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if key == arcade.key.UP:
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self.player_sprite.change_y = MOVEMENT_SPEED
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elif key == arcade.key.DOWN:
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self.player_sprite.change_y = -MOVEMENT_SPEED
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elif key == arcade.key.LEFT:
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self.player_sprite.change_x = -MOVEMENT_SPEED
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elif key == arcade.key.RIGHT:
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self.player_sprite.change_x = MOVEMENT_SPEED
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def on_key_release(self, key, modifiers):
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"""Called when the user releases a key. """
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if key == arcade.key.UP or key == arcade.key.DOWN:
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self.player_sprite.change_y = 0
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elif key == arcade.key.LEFT or key == arcade.key.RIGHT:
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self.player_sprite.change_x = 0
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def main():
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""" Main method """
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window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
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window.setup()
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arcade.run()
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if __name__ == "__main__":
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main()
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