Collect Coins that are Bouncing#
sprite_collect_coins_move_bouncing.py#
1"""
2Sprite Collect Moving and Bouncing Coins
3
4Simple program to show basic sprite usage.
5
6Artwork from https://kenney.nl
7
8If Python and Arcade are installed, this example can be run from the command line with:
9python -m arcade.examples.sprite_collect_coins_move_bouncing
10"""
11
12from __future__ import annotations
13
14import random
15import arcade
16
17# --- Constants ---
18SPRITE_SCALING_PLAYER = 0.5
19SPRITE_SCALING_COIN = 0.2
20COIN_COUNT = 50
21
22SCREEN_WIDTH = 800
23SCREEN_HEIGHT = 600
24SCREEN_TITLE = "Sprite Collect Moving and Bouncing Coins Example"
25
26
27class Coin(arcade.Sprite):
28
29 def __init__(self, filename, scale):
30
31 super().__init__(filename, scale=scale)
32
33 self.change_x = 0
34 self.change_y = 0
35
36 def update(self):
37
38 # Move the coin
39 self.center_x += self.change_x
40 self.center_y += self.change_y
41
42 # If we are out-of-bounds, then 'bounce'
43 if self.left < 0:
44 self.change_x *= -1
45
46 if self.right > SCREEN_WIDTH:
47 self.change_x *= -1
48
49 if self.bottom < 0:
50 self.change_y *= -1
51
52 if self.top > SCREEN_HEIGHT:
53 self.change_y *= -1
54
55
56class MyGame(arcade.Window):
57 """ Our custom Window Class"""
58
59 def __init__(self):
60 """ Initializer """
61 # Call the parent class initializer
62 super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
63
64 # Variables that will hold sprite lists
65 self.all_sprites_list = None
66 self.coin_list = None
67
68 # Set up the player info
69 self.player_sprite = None
70 self.score = 0
71
72 # Don't show the mouse cursor
73 self.set_mouse_visible(False)
74
75 self.background_color = arcade.color.AMAZON
76
77 def setup(self):
78 """ Set up the game and initialize the variables. """
79
80 # Sprite lists
81 self.all_sprites_list = arcade.SpriteList()
82 self.coin_list = arcade.SpriteList()
83
84 # Score
85 self.score = 0
86
87 # Set up the player
88 # Character image from kenney.nl
89 self.player_sprite = arcade.Sprite(
90 ":resources:images/animated_characters/female_person/femalePerson_idle.png",
91 scale=SPRITE_SCALING_PLAYER,
92 )
93 self.player_sprite.center_x = 50
94 self.player_sprite.center_y = 50
95 self.all_sprites_list.append(self.player_sprite)
96
97 # Create the coins
98 for i in range(50):
99
100 # Create the coin instance
101 # Coin image from kenney.nl
102 coin = Coin(":resources:images/items/coinGold.png", scale=SPRITE_SCALING_COIN)
103
104 # Position the coin
105 coin.center_x = random.randrange(SCREEN_WIDTH)
106 coin.center_y = random.randrange(SCREEN_HEIGHT)
107 coin.change_x = random.randrange(-3, 4)
108 coin.change_y = random.randrange(-3, 4)
109
110 # Add the coin to the lists
111 self.all_sprites_list.append(coin)
112 self.coin_list.append(coin)
113
114 def on_draw(self):
115 """ Draw everything """
116 self.clear()
117 self.all_sprites_list.draw()
118
119 # Put the text on the screen.
120 output = f"Score: {self.score}"
121 arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14)
122
123 def on_mouse_motion(self, x, y, dx, dy):
124 """ Handle Mouse Motion """
125
126 # Move the center of the player sprite to match the mouse x, y
127 self.player_sprite.center_x = x
128 self.player_sprite.center_y = y
129
130 def on_update(self, delta_time):
131 """ Movement and game logic """
132
133 # Call update on all sprites (The sprites don't do much in this
134 # example though.)
135 self.all_sprites_list.update()
136
137 # Generate a list of all sprites that collided with the player.
138 hit_list = arcade.check_for_collision_with_list(self.player_sprite,
139 self.coin_list)
140
141 # Loop through each colliding sprite, remove it, and add to the score.
142 for coin in hit_list:
143 coin.remove_from_sprite_lists()
144 self.score += 1
145
146
147def main():
148 window = MyGame()
149 window.setup()
150 arcade.run()
151
152
153if __name__ == "__main__":
154 main()