152 lines
4.3 KiB
Python
152 lines
4.3 KiB
Python
"""
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Sprite Collect Coins Moving Down
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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_collect_coins_move_down
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"""
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import random
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import arcade
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import os
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# --- Constants ---
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SPRITE_SCALING_PLAYER = 0.5
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SPRITE_SCALING_COIN = 0.2
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COIN_COUNT = 50
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SCREEN_WIDTH = 800
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SCREEN_HEIGHT = 600
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SCREEN_TITLE = "Sprite Collect Coins Moving Down Example"
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class Coin(arcade.Sprite):
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"""
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This class represents the coins on our screen. It is a child class of
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the arcade library's "Sprite" class.
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"""
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def reset_pos(self):
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# Reset the coin to a random spot above the screen
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self.center_y = random.randrange(SCREEN_HEIGHT + 20,
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SCREEN_HEIGHT + 100)
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self.center_x = random.randrange(SCREEN_WIDTH)
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def update(self):
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# Move the coin
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self.center_y -= 1
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# See if the coin has fallen off the bottom of the screen.
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# If so, reset it.
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if self.top < 0:
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self.reset_pos()
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class MyGame(arcade.Window):
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""" Our custom Window Class"""
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def __init__(self):
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""" Initializer """
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# Call the parent class initializer
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super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
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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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# Variables that will hold sprite lists
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self.player_sprite_list = None
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self.coin_sprite_list = None
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# Set up the player info
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self.player_sprite = None
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self.score = 0
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# Don't show the mouse cursor
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self.set_mouse_visible(False)
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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.player_sprite_list = arcade.SpriteList()
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self.coin_sprite_list = arcade.SpriteList()
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# Score
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self.score = 0
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# Set up the player
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# Character image from kenney.nl
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self.player_sprite = arcade.Sprite("images/character.png", SPRITE_SCALING_PLAYER)
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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.player_sprite_list.append(self.player_sprite)
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# Create the coins
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for i in range(COIN_COUNT):
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# Create the coin instance
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# Coin image from kenney.nl
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coin = Coin("images/coin_01.png", SPRITE_SCALING_COIN)
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# Position the coin
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coin.center_x = random.randrange(SCREEN_WIDTH)
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coin.center_y = random.randrange(SCREEN_HEIGHT)
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# Add the coin to the lists
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self.coin_sprite_list.append(coin)
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def on_draw(self):
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""" Draw everything """
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arcade.start_render()
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self.coin_sprite_list.draw()
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self.player_sprite_list.draw()
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# Put the text on the screen.
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output = f"Score: {self.score}"
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arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14)
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def on_mouse_motion(self, x, y, dx, dy):
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""" Handle Mouse Motion """
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# Move the center of the player sprite to match the mouse x, y
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self.player_sprite.center_x = x
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self.player_sprite.center_y = y
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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.coin_sprite_list.update()
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# Generate a list of all sprites that collided with the player.
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hit_list = arcade.check_for_collision_with_list(self.player_sprite,
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self.coin_sprite_list)
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# Loop through each colliding sprite, remove it, and add to the score.
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for coin in hit_list:
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coin.kill()
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self.score += 1
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def main():
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window = MyGame()
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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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