-
Notifications
You must be signed in to change notification settings - Fork 0
/
asteroids.py
433 lines (357 loc) · 14.4 KB
/
asteroids.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
# -*- coding: utf-8 -*-
import math
import random
import simplegui
WIDTH = 800
HEIGHT = 600
MEDIA_HOST = 'http://commondatastorage.googleapis.com/codeskulptor-assets/'
class ImageInfo(object):
def __init__(self, center, size, radius=0, lifespan=None, animated=False):
self.center = center
self.size = size
self.radius = radius
self.lifespan = lifespan if lifespan else float('inf')
self.animated = animated
def get_center(self):
return self.center
def get_size(self):
return self.size
def get_radius(self):
return self.radius
def get_lifespan(self):
return self.lifespan
def get_animated(self):
return self.animated
def dist(p, q):
return math.sqrt((p[0] - q[0]) ** 2 + (p[1] - q[1]) ** 2)
class Ship(object):
def __init__(self, position, velocity, angle):
self.position = [position[0], position[1]]
self.velocity = [velocity[0], velocity[1]]
self.angle = angle
self.ship_image_info = ImageInfo([45, 45], [90, 90], 35)
self.missile_info = ImageInfo([5,5], [10, 10], 3, 50)
self.missile_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/shot2.png')
self.missile_sound = simplegui.load_sound(
MEDIA_HOST + 'sounddogs/missile.mp3')
self.missile_sound.set_volume(.5)
self.image = simplegui.load_image(
MEDIA_HOST + 'lathrop/double_ship.png')
self.image_center = self.ship_image_info.get_center()
self.image_size = self.ship_image_info.get_size()
self.radius = self.ship_image_info.get_radius()
self.animated = self.ship_image_info.get_animated()
self.thrust = False
self.angle_velocity = 0
self.missile_group = set()
def adjust_center_and_angle(self):
angle = self.angle
self.image_center[0] = self.image_size[0] / 2
if self.thrust:
self.image_center[0] += self.image_size[0]
current_center = self.image_center
return (current_center, angle)
def draw(self, canvas):
angle = 0
current_center = self.image_center
if not self.animated:
current_center, angle = self.adjust_center_and_angle()
canvas.draw_image(
self.image, current_center, self.image_size,
(self.position[0] % WIDTH, self.position[1] % HEIGHT),
self.image_size, angle
)
def angle_to_vector(self):
return [math.cos(self.angle), math.sin(self.angle)]
def accelerate(self):
forward_velocity = 17.0
forward = self.angle_to_vector()
self.velocity[0] += forward[0] / forward_velocity
self.velocity[1] += forward[1] / forward_velocity
def update(self):
slow_down_velocity = 0.991
self.angle += self.angle_velocity
self.position[0] += self.velocity[0]
self.position[1] += self.velocity[1]
self.velocity[0] *= slow_down_velocity
self.velocity[1] *= slow_down_velocity
if self.thrust:
self.accelerate()
def get_new_missile(self):
missile_forward_velocity = 2.5
forward = self.angle_to_vector()
start_position = (
self.position[0] + (self.image_size[0] / 2) * forward[0],
self.position[1] + (self.image_size[0] / 2) * forward[1]
)
return Sprite(
start_position,
[
self.velocity[0] + missile_forward_velocity * forward[0],
self.velocity[1] + missile_forward_velocity * forward[1]
],
self.angle, 0, self.missile_image, self.missile_info,
self.missile_sound
)
def shoot(self):
new_missile = self.get_new_missile()
self.missile_group.add(new_missile)
def get_position(self):
return self.position
def get_radius(self):
return self.radius
class Sprite:
def __init__(
self, position, velocity, angle, angle_velocity, image,
image_info, sound=None
):
self.position = [position[0], position[1]]
self.velocity = [velocity[0], velocity[1]]
self.angle = angle
self.angle_velocity = angle_velocity
self.image = image
self.image_center = image_info.get_center()
self.image_size = image_info.get_size()
self.radius = image_info.get_radius()
self.lifespan = image_info.get_lifespan()
self.animated = image_info.get_animated()
self.age = 0
if sound:
sound.rewind()
sound.play()
def adjust_center_and_angle(self):
angle = 0
current_center = [
self.image_center[0] + self.age * self.image_size[0],
self.image_center[1]
]
return (current_center, angle)
def draw(self, canvas):
current_center = self.image_center
angle = self.angle
if self.animated:
current_center, angle = self.adjust_center_and_angle()
canvas.draw_image(
self.image, current_center, self.image_size,
(self.position[0] % WIDTH, self.position[1] % HEIGHT),
self.image_size, self.angle
)
def update(self):
self.angle += self.angle_velocity
self.position[0] += self.velocity[0]
self.position[1] += self.velocity[1]
self.age += 1
if self.age >= self.lifespan:
return True
return False
def get_position(self):
return self.position
def get_radius(self):
return self.radius
def collide(self, other_object):
pos1 = (self.get_position()[0] % WIDTH, self.get_position()[1] % HEIGHT)
pos2 = (
other_object.get_position()[0] % WIDTH,
other_object.get_position()[1] % HEIGHT
)
if dist(pos1, pos2) < (self.get_radius() + other_object.get_radius()):
return True
return False
class Asteroids(object):
def __init__(self):
self.my_ship = Ship([WIDTH / 2, HEIGHT / 2], [0, 0], 0)
self.rock_group = set()
self.explosion_group = set()
self.lives = 3
self.started = False
self.score = 0
self.time = 0.5
self.max_rock_velocity = 10
self.points_to_velocity_map = {
20: 13, 30: 17, 40: 21, 50: 25, 60: 29, 70: 33, 80: 37,
90: 41, 100: 45
}
self.soundtrack = simplegui.load_sound(
MEDIA_HOST + 'sounddogs/soundtrack.mp3')
self.splash_info = ImageInfo([200, 150], [400, 300])
self.splash_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/splash.png')
self.asteroid_info = ImageInfo([45, 45], [90, 90], 40)
self.asteroid_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/asteroid_blue.png')
self.ship_explosion_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/explosion_alpha.png')
self.asteroid_explosion_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/explosion_blue2.png')
self.ship_thrust_sound = simplegui.load_sound(
MEDIA_HOST + 'sounddogs/thrust.mp3')
self.explosion_info = ImageInfo([64, 64], [128, 128], 17, 24, True)
self.explosion_sound = simplegui.load_sound(
MEDIA_HOST + 'sounddogs/explosion.mp3')
self.debris_info = ImageInfo([320, 240], [640, 480])
self.debris_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/debris3_brown.png')
self.nebula_info = ImageInfo([400, 300], [800, 600])
self.nebula_image = simplegui.load_image(
MEDIA_HOST + 'lathrop/nebula_blue.s2014.png')
def keydown(self, key):
angle_velocity = 0.06
if key == simplegui.KEY_MAP['left']:
self.my_ship.angle_velocity = (-1) * angle_velocity
elif key == simplegui.KEY_MAP['right']:
self.my_ship.angle_velocity = angle_velocity
elif key == simplegui.KEY_MAP['up']:
self.my_ship.thrust = True
self.ship_thrust_sound.rewind()
self.ship_thrust_sound.play()
elif key == simplegui.KEY_MAP['space']:
self.my_ship.shoot()
def keyup(self, key):
if key == simplegui.KEY_MAP['left']:
self.my_ship.angle_velocity = 0
elif key == simplegui.KEY_MAP['right']:
self.my_ship.angle_velocity = 0
elif key == simplegui.KEY_MAP['up']:
self.my_ship.thrust = False
self.ship_thrust_sound.pause()
self.ship_thrust_sound.rewind()
def splash_clicked(self, coords):
center = [WIDTH / 2, HEIGHT / 2]
size = self.splash_info.get_size()
inwidth = (
center[0] - size[0] / 2) < coords[0] < (center[0] + size[0] / 2)
inheight = (
center[1] - size[1] / 2) < coords[1] < (center[1] + size[1] / 2)
return inwidth and inheight
def reset_state(self):
self.score = 0
self.lives = 3
self.my_ship.missile_group = set()
self.rock_group = set()
self.explosion_group = set()
self.max_rock_velocity = 10
def click(self, coords):
if not self.started and self.splash_clicked(coords):
self.reset_state()
self.started = True
self.soundtrack.play()
def process_sprite_group(self, sprite_group, canvas):
for sprite in sprite_group:
sprite.draw(canvas)
if sprite.update():
sprite_group.remove(sprite)
def explode(self, exploding_object, explosion_image):
new_explosion = Sprite(
exploding_object.get_position(), (0, 0), 0, 0, explosion_image,
self.explosion_info, self.explosion_sound
)
self.explosion_group.add(new_explosion)
def group_collide_object(self, group, other_object):
collide = False
for sprite in group:
if sprite.collide(other_object):
collide = True
sprite.animated = True
self.explode(sprite, self.asteroid_explosion_image)
group.remove(sprite)
return collide
def update_score_and_max_rock_velocity(self):
self.score += 1
if self.score in self.points_to_velocity_map:
self.max_rock_velocity = self.points_to_velocity_map[self.score]
def rocks_collide_missiles(self):
for rock in self.rock_group:
if self.group_collide_object(self.my_ship.missile_group, rock):
self.rock_group.discard(rock)
rock.animated = True
self.update_score_and_max_rock_velocity()
def get_random_velocity(self):
direction = random.choice([-1, 1])
return direction * random.randrange(1, self.max_rock_velocity) / 10.0
def get_new_rock_data(self):
position = [random.randrange(0, WIDTH), random.randrange(0, HEIGHT)]
velocity = [self.get_random_velocity(), self.get_random_velocity()]
angle_velocity = 0.1 * random.randrange(-2, 3)
return (position, velocity, angle_velocity)
def spawn_a_rock(self, position, velocity, angle_velocity):
new_rock = Sprite(
position, velocity, 0, angle_velocity, self.asteroid_image,
self.asteroid_info
)
self.rock_group.add(new_rock)
def can_spawn(self, position):
ship_position = self.my_ship.get_position()
ship_radius = self.my_ship.get_radius()
return dist(position, ship_position) > 6 * ship_radius
def rock_spawner(self):
if self.started and len(self.rock_group) < 12:
position, velocity, angle_velocity = self.get_new_rock_data()
if self.can_spawn(position):
self.spawn_a_rock(position, velocity, angle_velocity)
def stats_draw(self, canvas):
canvas.draw_text('Lives:', (50, 50), 24, 'White')
canvas.draw_text('Score:', (WIDTH - 150, 50), 24, 'White')
canvas.draw_text(str(self.lives), (50, 80), 24, 'White')
canvas.draw_text(str(self.score), (WIDTH - 150, 80), 24, 'White')
def background_draw(self, canvas):
debris_flytime = (self.time / 4) % WIDTH
debris_center = self.debris_info.get_center()
debris_size = self.debris_info.get_size()
canvas.draw_image(
self.nebula_image, self.nebula_info.get_center(),
self.nebula_info.get_size(), (WIDTH / 2, HEIGHT / 2),
(WIDTH, HEIGHT)
)
canvas.draw_image(
self.debris_image, debris_center, debris_size,
(debris_flytime - WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT)
)
canvas.draw_image(
self.debris_image, debris_center, debris_size,
(debris_flytime + WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT)
)
self.stats_draw(canvas)
def ship_explode(self):
self.lives -= 1
self.my_ship.animated = True
self.explode(self.my_ship, self.ship_explosion_image)
self.my_ship.animated = False
def splash_draw(self, canvas):
canvas.draw_image(
self.splash_image, self.splash_info.get_center(),
self.splash_info.get_size(), (WIDTH / 2, HEIGHT / 2),
self.splash_info.get_size()
)
def stop_and_display_splash(self):
self.started = False
self.soundtrack.pause()
self.soundtrack.rewind()
self.rock_group = set()
def draw(self, canvas):
self.time += 1
self.background_draw(canvas)
self.my_ship.draw(canvas)
self.my_ship.update()
self.process_sprite_group(self.rock_group, canvas)
self.process_sprite_group(self.my_ship.missile_group, canvas)
self.process_sprite_group(self.explosion_group, canvas)
if self.group_collide_object(self.rock_group, self.my_ship):
self.ship_explode()
self.rocks_collide_missiles()
if self.lives == 0:
self.stop_and_display_splash()
if not self.started:
self.splash_draw(canvas)
def run_game(self):
frame = simplegui.create_frame('Asteroids', WIDTH, HEIGHT)
frame.set_draw_handler(self.draw)
frame.set_keydown_handler(self.keydown)
frame.set_keyup_handler(self.keyup)
time_interval = 1000.0
timer = simplegui.create_timer(time_interval, self.rock_spawner)
frame.set_mouseclick_handler(self.click)
timer.start()
frame.start()
asteroids = Asteroids()
asteroids.run_game()