精灵爆炸位图#
sprite_explosion_bitmapped.py#
1"""
2Sprite Explosion
3
4Simple program to show how to make explosions with a series of bitmaps.
5
6Artwork from https://kenney.nl
7Explosion graphics from https://www.explosiongenerator.com/
8
9If Python and Arcade are installed, this example can be run from the command line with:
10python -m arcade.examples.sprite_explosion_bitmapped
11"""
12import random
13import arcade
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 = "Sprite Explosion Example"
23
24BULLET_SPEED = 5
25
26EXPLOSION_TEXTURE_COUNT = 60
27
28
29class Explosion(arcade.Sprite):
30 """ This class creates an explosion animation """
31
32 def __init__(self, texture_list):
33 super().__init__(texture_list[0])
34
35 # Start at the first frame
36 self.current_texture = 0
37 self.textures = texture_list
38
39 def update(self):
40
41 # Update to the next frame of the animation. If we are at the end
42 # of our frames, then delete this sprite.
43 self.current_texture += 1
44 if self.current_texture < len(self.textures):
45 self.set_texture(self.current_texture)
46 else:
47 self.remove_from_sprite_lists()
48
49
50class MyGame(arcade.Window):
51 """ Main application class. """
52
53 def __init__(self):
54 """ Initializer """
55 # Call the parent class initializer
56 super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
57
58 # Variables that will hold sprite lists
59 self.player_list = None
60 self.coin_list = None
61 self.bullet_list = None
62 self.explosions_list = None
63
64 # Set up the player info
65 self.player_sprite = None
66 self.score = 0
67
68 # Don't show the mouse cursor
69 self.set_mouse_visible(False)
70
71 # Pre-load the animation frames. We don't do this in the __init__
72 # of the explosion sprite because it
73 # takes too long and would cause the game to pause.
74 self.explosion_texture_list = []
75
76 columns = 16
77 count = 60
78 sprite_width = 256
79 sprite_height = 256
80 file_name = ":resources:images/spritesheets/explosion.png"
81
82 # Load the explosions from a sprite sheet
83 self.explosion_texture_list = arcade.load_spritesheet(file_name, sprite_width, sprite_height, columns, count)
84
85 # Load sounds. Sounds from kenney.nl
86 self.gun_sound = arcade.sound.load_sound(":resources:sounds/laser2.wav")
87 self.hit_sound = arcade.sound.load_sound(":resources:sounds/explosion2.wav")
88
89 self.background_color = arcade.color.AMAZON
90
91 def setup(self):
92
93 """ Set up the game and initialize the variables. """
94
95 # Sprite lists
96 self.player_list = arcade.SpriteList()
97 self.coin_list = arcade.SpriteList()
98 self.bullet_list = arcade.SpriteList()
99 self.explosions_list = arcade.SpriteList()
100
101 # Set up the player
102 self.score = 0
103
104 # Image from kenney.nl
105 self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png",
106 scale=SPRITE_SCALING_PLAYER)
107 self.player_sprite.center_x = 50
108 self.player_sprite.center_y = 70
109 self.player_list.append(self.player_sprite)
110
111 # Create the coins
112 for coin_index in range(COIN_COUNT):
113
114 # Create the coin instance
115 # Coin image from kenney.nl
116 coin = arcade.Sprite(":resources:images/items/coinGold.png", scale=SPRITE_SCALING_COIN)
117
118 # Position the coin
119 coin.center_x = random.randrange(SCREEN_WIDTH)
120 coin.center_y = random.randrange(150, SCREEN_HEIGHT)
121
122 # Add the coin to the lists
123 self.coin_list.append(coin)
124
125 # Set the background color
126 self.background_color = arcade.color.AMAZON
127
128 def on_draw(self):
129 """
130 Render the screen.
131 """
132
133 # This command has to happen before we start drawing
134 self.clear()
135
136 # Draw all the sprites.
137 self.coin_list.draw()
138 self.bullet_list.draw()
139 self.player_list.draw()
140 self.explosions_list.draw()
141
142 # Render the text
143 arcade.draw_text(f"Score: {self.score}", 10, 20, arcade.color.WHITE, 14)
144
145 def on_mouse_motion(self, x, y, dx, dy):
146 """
147 Called whenever the mouse moves.
148 """
149 self.player_sprite.center_x = x
150
151 def on_mouse_press(self, x, y, button, modifiers):
152 """
153 Called whenever the mouse button is clicked.
154 """
155
156 # Gunshot sound
157 arcade.sound.play_sound(self.gun_sound)
158
159 # Create a bullet
160 bullet = arcade.Sprite(":resources:images/space_shooter/laserBlue01.png", scale=SPRITE_SCALING_LASER)
161
162 # The image points to the right, and we want it to point up. So
163 # rotate it.
164 bullet.angle = 270
165
166 # Give it a speed
167 bullet.change_y = BULLET_SPEED
168
169 # Position the bullet
170 bullet.center_x = self.player_sprite.center_x
171 bullet.bottom = self.player_sprite.top
172
173 # Add the bullet to the appropriate lists
174 self.bullet_list.append(bullet)
175
176 def on_update(self, delta_time):
177 """ Movement and game logic """
178
179 # Call update on bullet sprites
180 self.bullet_list.update()
181 self.explosions_list.update()
182
183 # Loop through each bullet
184 for bullet in self.bullet_list:
185
186 # Check this bullet to see if it hit a coin
187 hit_list = arcade.check_for_collision_with_list(bullet, self.coin_list)
188
189 # If it did...
190 if len(hit_list) > 0:
191
192 # Make an explosion
193 explosion = Explosion(self.explosion_texture_list)
194
195 # Move it to the location of the coin
196 explosion.center_x = hit_list[0].center_x
197 explosion.center_y = hit_list[0].center_y
198
199 # Call update() because it sets which image we start on
200 explosion.update()
201
202 # Add to a list of sprites that are explosions
203 self.explosions_list.append(explosion)
204
205 # Get rid of the bullet
206 bullet.remove_from_sprite_lists()
207
208 # For every coin we hit, add to the score and remove the coin
209 for coin in hit_list:
210 coin.remove_from_sprite_lists()
211 self.score += 1
212
213 # Hit Sound
214 arcade.sound.play_sound(self.hit_sound)
215
216 # If the bullet flies off-screen, remove it.
217 if bullet.bottom > SCREEN_HEIGHT:
218 bullet.remove_from_sprite_lists()
219
220
221def main():
222 window = MyGame()
223 window.setup()
224 arcade.run()
225
226
227if __name__ == "__main__":
228 main()