1"""
2Sprite Bullets
3
4Simple program to show basic sprite usage.
5
6Artwork from http://kenney.nl
7
8If Python and Arcade are installed, this example can be run from the command line with:
9python -m arcade.examples.sprite_bullets
10"""
11import random
12import arcade
13import os
14
15SPRITE_SCALING_PLAYER = 0.5
16SPRITE_SCALING_COIN = 0.2
17SPRITE_SCALING_LASER = 0.8
18COIN_COUNT = 50
19
20SCREEN_WIDTH = 800
21SCREEN_HEIGHT = 600
22SCREEN_TITLE = "Sprites and Bullets Example"
23
24BULLET_SPEED = 5
25
26
27class MyGame(arcade.Window):
28 """ Main application class. """
29
30 def __init__(self):
31 """ Initializer """
32 # Call the parent class initializer
33 super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
34
35 # Set the working directory (where we expect to find files) to the same
36 # directory this .py file is in. You can leave this out of your own
37 # code, but it is needed to easily run the examples using "python -m"
38 # as mentioned at the top of this program.
39 file_path = os.path.dirname(os.path.abspath(__file__))
40 os.chdir(file_path)
41
42 # Variables that will hold sprite lists
43 self.player_list = None
44 self.coin_list = None
45 self.bullet_list = None
46
47 # Set up the player info
48 self.player_sprite = None
49 self.score = 0
50
51 # Don't show the mouse cursor
52 self.set_mouse_visible(False)
53
54 # Load sounds. Sounds from kenney.nl
55 self.gun_sound = arcade.load_sound(":resources:sounds/hurt5.wav")
56 self.hit_sound = arcade.load_sound(":resources:sounds/hit5.wav")
57
58 arcade.set_background_color(arcade.color.AMAZON)
59
60 def setup(self):
61
62 """ Set up the game and initialize the variables. """
63
64 # Sprite lists
65 self.player_list = arcade.SpriteList()
66 self.coin_list = arcade.SpriteList()
67 self.bullet_list = arcade.SpriteList()
68
69 # Set up the player
70 self.score = 0
71
72 # Image from kenney.nl
73 self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png", SPRITE_SCALING_PLAYER)
74 self.player_sprite.center_x = 50
75 self.player_sprite.center_y = 70
76 self.player_list.append(self.player_sprite)
77
78 # Create the coins
79 for i in range(COIN_COUNT):
80
81 # Create the coin instance
82 # Coin image from kenney.nl
83 coin = arcade.Sprite(":resources:images/items/coinGold.png", SPRITE_SCALING_COIN)
84
85 # Position the coin
86 coin.center_x = random.randrange(SCREEN_WIDTH)
87 coin.center_y = random.randrange(120, SCREEN_HEIGHT)
88
89 # Add the coin to the lists
90 self.coin_list.append(coin)
91
92 # Set the background color
93 arcade.set_background_color(arcade.color.AMAZON)
94
95 def on_draw(self):
96 """
97 Render the screen.
98 """
99
100 # This command has to happen before we start drawing
101 arcade.start_render()
102
103 # Draw all the sprites.
104 self.coin_list.draw()
105 self.bullet_list.draw()
106 self.player_list.draw()
107
108 # Render the text
109 arcade.draw_text(f"Score: {self.score}", 10, 20, arcade.color.WHITE, 14)
110
111 def on_mouse_motion(self, x, y, dx, dy):
112 """
113 Called whenever the mouse moves.
114 """
115 self.player_sprite.center_x = x
116
117 def on_mouse_press(self, x, y, button, modifiers):
118 """
119 Called whenever the mouse button is clicked.
120 """
121 # Gunshot sound
122 arcade.play_sound(self.gun_sound)
123 # Create a bullet
124 bullet = arcade.Sprite(":resources:images/space_shooter/laserBlue01.png", SPRITE_SCALING_LASER)
125
126 # The image points to the right, and we want it to point up. So
127 # rotate it.
128 bullet.angle = 90
129
130 # Give the bullet a speed
131 bullet.change_y = BULLET_SPEED
132
133 # Position the bullet
134 bullet.center_x = self.player_sprite.center_x
135 bullet.bottom = self.player_sprite.top
136
137 # Add the bullet to the appropriate lists
138 self.bullet_list.append(bullet)
139
140 def on_update(self, delta_time):
141 """ Movement and game logic """
142
143 # Call update on bullet sprites
144 self.bullet_list.update()
145
146 # Loop through each bullet
147 for bullet in self.bullet_list:
148
149 # Check this bullet to see if it hit a coin
150 hit_list = arcade.check_for_collision_with_list(bullet, self.coin_list)
151
152 # If it did, get rid of the bullet
153 if len(hit_list) > 0:
154 bullet.remove_from_sprite_lists()
155
156 # For every coin we hit, add to the score and remove the coin
157 for coin in hit_list:
158 coin.remove_from_sprite_lists()
159 self.score += 1
160
161 # Hit Sound
162 arcade.play_sound(self.hit_sound)
163
164 # If the bullet flies off-screen, remove it.
165 if bullet.bottom > SCREEN_HEIGHT:
166 bullet.remove_from_sprite_lists()
167
168
169def main():
170 window = MyGame()
171 window.setup()
172 arcade.run()
173
174
175if __name__ == "__main__":
176 main()