标签：des style blog http io ar os 使用 sp
process_sprite_group看论坛，找到了答案 现在做撞击，看论坛，找到了答案。如何产生一组导弹，岩石碰撞后不能再生已经可以产生一组导弹了，但是导弹寿命要调整碰撞后岩石消失，但是分数没有增加，岩石消失不再出现分数已经增加啦，这个我自己做出来的 要有多重火箭和多重导弹。飞船撞到岩石会丢一条命, 导弹打到岩石得一分， 你要更新得分和生命情况，在合适的时候结束游戏。 .当发生碰撞的时候你可以选择添加爆炸动画
Tip #1 - Spawning rocks多重岩石
为了控制多重岩石，用rock_group代替 a_rock.在rock_spawner里面，你应该产生一个本地的a_rock的副本并添加到全局集合rock_group里面。 为了避免超过12个岩石，你可以使用一个基于rock_group长度的测试。 为了测试你的代码，你可以添加一个for循环到draw handler里面以这种形式： 对每个在rock_group里面的岩石, 画出那个岩石。这个draw以后将被放到 process_sprite_group里面在第一部分的最后一步
Phase one - 多重岩石
这部分，你要检测飞船和岩石的撞击。 发生撞击，岩石要毁坏并且玩家要丢失生命. 为了完成飞船岩石撞击:你要这么做：
False. 目前，这个其他对象将一直是你的飞船, 但我们也想要能用这个colide方法来侦测跟导弹的撞击。 可以使用这两个对象的半径侦测撞击。这需要你完成 get_position和get_radius在Sprite和get_radius.group和一个sprit other_object并经检查在other_object和group里的元素的撞击。如果有撞击， 撞击对象应该从group里面移除。为了避免移除你正在迭代的set(可能产生一个严重的bug), 通过 set(group)创建一个副本迭代. 这个函数应该返回 True或者False取决于是否有撞击。确定使用第一部分的collide方法 在sprites在group里面来完成这个任务。Phase three - 导弹
在这部分你要产生一个导弹组，在按空格的时候产生新的导弹加入导弹组里面。需要如下步骤：
missile_group. 当你发射导弹的时候，你会注意到他们永远在飞。 为了修正这个，我们需要修改Sprite类和process_sprite_group.update,sprite要增加。如果寿命大于或者等于sprite的生命，我们要删掉它。. 所以return返回False (意味着我们要保留它) 如果age少于寿命并且True(意味着我们要删掉它) 否则.True, 从group里面删掉sprite。再一次 你将希望迭代sprite群的副本在process_sprite_group.来避免删掉从相同的set在你迭代的。group_collide, 因为我要检查两个group的碰撞。我们要做的就是加一个新的函数 :group_group_collide ,啥呢，将两个grops的对象作为输入. group_group_collide应该使用一个for循环在第一组副本元素迭代，然后第二组的所有元素调用group_collide.group_group_collide应该返回第一组元素跟第二在元素撞击并删除第一组中的这些元素。 你可能会发现set的discard 功能在这里很有用。group_group_collide来检测导弹/岩石的碰撞。 根据导弹撞击的数目增加分数。基本完了，再添加一点
额外的
self.animated是否是True .如果是的话根据age选择正确的碎片.图片是平铺的.如果self.animated是 False,应该像以前一样画sprite.explosion_group,全局变量并复位它成为一个空集合。# implementation of Spaceship - program template for RiceRocks
import simplegui
import math
import random
# globals for user interface
WIDTH = 800
HEIGHT = 600
score = 0
lives = 3
time = 0
started = False
zjcs = 0
class ImageInfo:
def __init__(self, center, size, radius = 0, lifespan = None, animated = False):
self.center = center
self.size = size
self.radius = radius
if lifespan:
self.lifespan = lifespan
else:
self.lifespan = 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
# art assets created by Kim Lathrop, may be freely re-used in non-commercial projects, please credit Kim
# debris images - debris1_brown.png, debris2_brown.png, debris3_brown.png, debris4_brown.png
# debris1_blue.png, debris2_blue.png, debris3_blue.png, debris4_blue.png, debris_blend.png
debris_info = ImageInfo([320, 240], [640, 480])
debris_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/debris2_blue.png")
# nebula images - nebula_brown.png, nebula_blue.png
nebula_info = ImageInfo([400, 300], [800, 600])
nebula_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/nebula_blue.f2014.png")
# splash image
splash_info = ImageInfo([200, 150], [400, 300])
splash_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/splash.png")
# ship image
ship_info = ImageInfo([45, 45], [90, 90], 35)
ship_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/double_ship.png")
# missile image - shot1.png, shot2.png, shot3.png
missile_info = ImageInfo([5,5], [10, 10], 3, 50)
missile_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/shot2.png")
# asteroid images - asteroid_blue.png, asteroid_brown.png, asteroid_blend.png
asteroid_info = ImageInfo([45, 45], [90, 90], 40)
asteroid_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/asteroid_blue.png")
# animated explosion - explosion_orange.png, explosion_blue.png, explosion_blue2.png, explosion_alpha.png
explosion_info = ImageInfo([64, 64], [128, 128], 17, 24, True)
explosion_image = simplegui.load_image("http://commondatastorage.googleapis.com/codeskulptor-assets/lathrop/explosion_alpha.png")
# sound assets purchased from sounddogs.com, please do not redistribute
# .ogg versions of sounds are also available, just replace .mp3 by .ogg
soundtrack = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/soundtrack.mp3")
missile_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/missile.mp3")
missile_sound.set_volume(.5)
ship_thrust_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/thrust.mp3")
explosion_sound = simplegui.load_sound("http://commondatastorage.googleapis.com/codeskulptor-assets/sounddogs/explosion.mp3")
# helper functions to handle transformations
def angle_to_vector(ang):
return [math.cos(ang), math.sin(ang)]
def dist(p, q):
return math.sqrt((p[0] - q[0]) ** 2 + (p[1] - q[1]) ** 2)
# Ship class
class Ship:
def __init__(self, pos, vel, angle, image, info):
self.pos = [pos[0], pos[1]]
self.vel = [vel[0], vel[1]]
self.thrust = False
self.angle = angle
self.angle_vel = 0
self.image = image
self.image_center = info.get_center()
self.image_size = info.get_size()
self.radius = info.get_radius()
def draw(self,canvas):
if self.thrust:
canvas.draw_image(self.image, [self.image_center[0] + self.image_size[0], self.image_center[1]] , self.image_size,
self.pos, self.image_size, self.angle)
else:
canvas.draw_image(self.image, self.image_center, self.image_size,
self.pos, self.image_size, self.angle)
# canvas.draw_circle(self.pos, self.radius, 1, "White", "White")
def update(self):
# update angle
self.angle += self.angle_vel
# update position
self.pos[0] = (self.pos[0] + self.vel[0]) % WIDTH
self.pos[1] = (self.pos[1] + self.vel[1]) % HEIGHT
# update velocity
if self.thrust:
acc = angle_to_vector(self.angle)
self.vel[0] += acc[0] * .1
self.vel[1] += acc[1] * .1
self.vel[0] *= .99
self.vel[1] *= .99
def set_thrust(self, on):
self.thrust = on
if on:
ship_thrust_sound.rewind()
ship_thrust_sound.play()
else:
ship_thrust_sound.pause()
def increment_angle_vel(self):
self.angle_vel += .05
def decrement_angle_vel(self):
self.angle_vel -= .05
def shoot(self):
global a_missile, missile_group
forward = angle_to_vector(self.angle)
missile_pos = [self.pos[0] + self.radius * forward[0], self.pos[1] + self.radius * forward[1]]
missile_vel = [self.vel[0] + 6 * forward[0], self.vel[1] + 6 * forward[1]]
a_missile = Sprite(missile_pos, missile_vel, self.angle, 0, missile_image, missile_info, missile_sound)
missile_group.add(a_missile)
def get_position(self):
return self.pos
def get_radius(self):
return self.radius
# Sprite class
class Sprite:
def __init__(self, pos, vel, ang, ang_vel, image, info, sound = None):
self.pos = [pos[0],pos[1]]
self.vel = [vel[0],vel[1]]
self.angle = ang
self.angle_vel = ang_vel
self.image = image
self.image_center = info.get_center()
self.image_size = info.get_size()
self.radius = info.get_radius()
self.lifespan = info.get_lifespan()
self.animated = info.get_animated()
self.age = 0
if sound:
sound.rewind()
sound.play()
def draw(self, canvas):
canvas.draw_image(self.image, self.image_center, self.image_size,
self.pos, self.image_size, self.angle)
def update(self):
# update angle
self.angle += self.angle_vel
# update position
self.pos[0] = (self.pos[0] + self.vel[0]) % WIDTH
self.pos[1] = (self.pos[1] + self.vel[1]) % HEIGHT
self.age += 1
if self.age < self.lifespan:
return False
else:
return True
def get_position(self):
return self.pos
def get_radius(self):
return self.radius
def collide(self, other_object):
if dist(self.pos, other_object.get_position()) <= self.radius + other_object.get_radius():
return True
else:
return False
#参考https://class.coursera.org/interactivepython-005/forum/thread?thread_id=5328
def group_collide(group, other_object):
global collided
collided = False
group_copy = list(group)
for item in group_copy:
if item.collide(other_object) == True:
collided = True
group.discard(item)
return collided
def group_group_collide(group1, group2):
global zjcs
group1_copy = list(group1)
for i in group1_copy:
if group_collide(group2, i) == True:
group1.discard(i)
zjcs += 1
return True
# key handlers to control ship
def keydown(key):
if key == simplegui.KEY_MAP[‘left‘]:
my_ship.decrement_angle_vel()
elif key == simplegui.KEY_MAP[‘right‘]:
my_ship.increment_angle_vel()
elif key == simplegui.KEY_MAP[‘up‘]:
my_ship.set_thrust(True)
elif key == simplegui.KEY_MAP[‘space‘]:
my_ship.shoot()
def keyup(key):
if key == simplegui.KEY_MAP[‘left‘]:
my_ship.increment_angle_vel()
elif key == simplegui.KEY_MAP[‘right‘]:
my_ship.decrement_angle_vel()
elif key == simplegui.KEY_MAP[‘up‘]:
my_ship.set_thrust(False)
# mouseclick handlers that reset UI and conditions whether splash image is drawn
def click(pos):
timer.start()
global started
center = [WIDTH / 2, HEIGHT / 2]
size = splash_info.get_size()
inwidth = (center[0] - size[0] / 2) < pos[0] < (center[0] + size[0] / 2)
inheight = (center[1] - size[1] / 2) < pos[1] < (center[1] + size[1] / 2)
if (not started) and inwidth and inheight:
started = True
soundtrack.rewind()
soundtrack.play()
def draw(canvas):
global time, started, lives, score, zjcs, rock_group
# animiate background
time += 1
wtime = (time / 4) % WIDTH
center = debris_info.get_center()
size = debris_info.get_size()
canvas.draw_image(nebula_image, nebula_info.get_center(), nebula_info.get_size(), [WIDTH / 2, HEIGHT / 2], [WIDTH, HEIGHT])
canvas.draw_image(debris_image, center, size, (wtime - WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT))
canvas.draw_image(debris_image, center, size, (wtime + WIDTH / 2, HEIGHT / 2), (WIDTH, HEIGHT))
# draw UI
canvas.draw_text("Lives", [50, 50], 22, "White")
canvas.draw_text("Score", [680, 50], 22, "White")
if group_collide(rock_group, my_ship) == True:
lives -= 1
if lives < 1:
started = False
lives = 3
score = 0
zjcs = 0
rock_group = set([])
timer.stop()
#number -= 1
#canvas.draw_text(str(lives), [50, 80], 22, "White")
#canvas.draw_text(str(score), [680, 80], 22, "White")
if group_group_collide(missile_group, rock_group) == True:
score = zjcs * 10
# draw ship and sprites
my_ship.draw(canvas)
#a_rock.draw(canvas)
process_sprite_group(canvas,rock_group)
process_sprite_group(canvas,missile_group)
#for n in rock_group:
# n.draw(canvas)
#a_missile.draw(canvas)注释掉这一行，导弹就不是一直存在了
# update ship and sprites
my_ship.update()
#a_rock.update()？？？？？？？？？？？？？
#a_missile.update()
# draw splash screen if not started
if not started:
canvas.draw_image(splash_image, splash_info.get_center(),
splash_info.get_size(), [WIDTH / 2, HEIGHT / 2],
splash_info.get_size())
canvas.draw_text("Lives", [50, 50], 22, "White")
canvas.draw_text("Score", [680, 50], 22, "White")
canvas.draw_text(str(lives), [50, 80], 22, "White")#放下面，可以一直在上面显示
canvas.draw_text(str(score), [680, 80], 22, "White")
# timer handler that spawns a rock
def rock_spawner():
global a_rock, rock_group, zjcs
rock_pos = [random.randrange(0, WIDTH), random.randrange(0, HEIGHT)]
rock_vel = [random.random() * .6 - .3, random.random() * .6 - .3]
if zjcs > 5:#得分超过5，速度加快
rock_vel = [random.random() * 6 - .3, random.random() * 6 - .3]
rock_avel = random.random() * .2 - .1
a_rock = Sprite(rock_pos, rock_vel, 0, rock_avel, asteroid_image, asteroid_info)
#rock_group.add(a_rock)
if len(rock_group) < 13 and dist(rock_pos, my_ship.pos) > 150:
rock_group.add(a_rock)
def process_sprite_group(canvas, group):
#if a_missile.update == True:
#missile_group.remove(a_missile)
for m in list(group):
#m.update()
if m.update() == True:
missile_group.remove(m)
m.draw(canvas)
# initialize stuff
frame = simplegui.create_frame("Asteroids", WIDTH, HEIGHT)
# initialize ship and two sprites
my_ship = Ship([WIDTH / 2, HEIGHT / 2], [0, 0], 0, ship_image, ship_info)
a_rock = Sprite([WIDTH / 3, HEIGHT / 3], [1, 1], 0, .1, asteroid_image, asteroid_info)
rock_group = set([])
a_missile = Sprite([2 * WIDTH / 3, 2 * HEIGHT / 3], [-1,1], 0, 0, missile_image, missile_info, missile_sound)
missile_group = set([])
# register handlers
frame.set_keyup_handler(keyup)
frame.set_keydown_handler(keydown)
frame.set_mouseclick_handler(click)
frame.set_draw_handler(draw)
timer = simplegui.create_timer(1000.0, rock_spawner)
# get things rolling
timer.stop()
frame.start()
标签：des style blog http io ar os 使用 sp
原文地址：http://www.cnblogs.com/tufei7/p/4101123.html
