import?pygame
import?random
import?math
from?pygame.constants?import?TIMER_RESOLUTION
?
pygame.init()
score_value?=?0
font?=?pygame.font.Font('freesansbold.ttf',?32)
textX?=?10
textY?=?10
?
def?show_score(x,?y):
????score?=?font.render("Score?:"?+?str(score_value),?True,?(255,?255,?255))
????screen.blit(score,?(x,?y))
?
#?屏幕和图片引入
screen?=?pygame.display.set_mode((1000,?700))
icon?=?pygame.image.load("master2.jpg")
rocket?=?pygame.image.load("ship.png")
bulletImg?=?pygame.image.load("bullet.png")
background?=?pygame.image.load("background.jpg")
pygame.display.set_icon(icon)
pygame.display.set_caption("油管版外星人大战")
?
#?火箭参数
rocketX?=?460
rocketY?=?550
player_changex?=?0
player_changey?=?0
#?敌人参数
enemy_image?=?[]
enemyX?=?[]
enemyY?=?[]
enemy_changex?=?[]
enemy_changey?=?[]
num_of_enemys?=?5
for?i?in?range(num_of_enemys):
????enemy_image.append(pygame.image.load("ufo2.png"))
????enemyX.append(random.randint(0,?1000))
????enemyY.append(random.randint(0,?300))
????enemy_changex.append(0.3)
????enemy_changey.append(30)
#?子弹参数
bulletx?=?0
bullety?=?rocketY
bullet_changex?=?0
bullet_changey?=?1
bullet_state?=?"ready"
#?火箭函数
?
def?rocket_player(x,?y):
????screen.blit(rocket,?(x,?y))
#?敌人函数
?
def?enemy_set(x,?y,?i):
????screen.blit(enemy_image[i],?(x,?y))
#?子弹函数
?
def?fire_bullet(x,?y):
????global?bullet_state
????bullet_state?=?"fire"
????screen.blit(bulletImg,?(x+50,?y))
#?碰撞函数
?
def?boom(enemyX,?enemyY,?bulletx,?bullety):
????distance?=?math.sqrt((math.pow(enemyX-bulletx,?2))?+
?????????????????????????(math.pow(enemyY-bullety,?2)))
????if?distance?<=?50:
????????return?True
????else:
????????return?False
?
#?主循环
message?=?True
while?message:
????screen.fill((0,?0,?0))
????screen.blit(background,?(0,?0))
????for?event?in?pygame.event.get():
????????if?event.type?==?pygame.QUIT:
????????????message?=?False
????????if?event.type?==?pygame.KEYDOWN:
????????????if?event.key?==?pygame.K_LEFT:
????????????????player_changex?+=?-1
????????????if?event.key?==?pygame.K_RIGHT:
????????????????player_changex?+=?1
????????????if?event.key?==?pygame.K_SPACE:
????????????????if?bullet_state?is?"ready":
????????????????????bulletx?=?rocketX
????????????????????fire_bullet(bulletx,?bullety)
????????if?event.type?==?pygame.KEYUP:
????????????if?event.key?==?pygame.K_LEFT?or?event.key?==?pygame.K_RIGHT:
????????????????player_changex?=?0
????rocketX?+=?player_changex
????rocketY?+=?player_changey
????if?rocketX?<=?0:
????????rocketX?=?0
????elif?rocketX?>=?850:
????????rocketX?=?850
????elif?rocketY?<=?0:
????????rocketY?=?0
????elif?rocketY?>=?550:
????????rocketY?=?550
????for?i?in?range(num_of_enemys):
????????enemyX[i]?+=?enemy_changex[i]
????????if?enemyX[i]?<=?0:
????????????enemyX[i]?=?0.3
????????????enemy_changex[i]?=?+0.5
????????????enemyY[i]?+=?enemy_changey[i]
????????work?=?boom(enemyX[i],?enemyY[i],?bulletx,?bullety)
????????if?work:
????????????bullety?=?rocketY
????????????bullet_state?=?"ready"
????????????score_value?+=?1
????????????enemyX[i]?=?random.randint(0,?1000)
????????????enemyY[i]?=?random.randint(0,?300)
????????enemy_set(enemyX[i],?enemyY[i],?i)
????????if?enemyX[i]?>=?850:
????????????enemyX[i]?=?850
????????????enemy_changex[i]?=?-0.5
????????????enemyY[i]?+=?enemy_changey[i]
????if?bullety?<=?0:
????????bullety?=?rocketY
????????bullet_state?=?"ready"
????elif?bullet_state?is?"fire":
????????fire_bullet(bulletx,?bullety)
????????bullety?-=?bullet_changey
????rocket_player(rocketX,?rocketY)
????show_score(textX,?textY)
????pygame.display.update()
?
?
?
?
?
?
?
?