Python飞行追踪模拟

话不多说，上图：

飞行跟踪

代码 

import pygame,sysfrom math import *pygame.init()font1=pygame.font.SysFont('microsoftyaheimicrosoftyaheiui',23)textc=font1.render('*',True,(250,0,0))screen=pygame.display.set_mode((800,700),0,32)missile=pygame.image.load('rect1.png').convert_alpha()height=missile.get_height()width=missile.get_width()pygame.mouse.set_visible(0)x1,y1=100,600    #飞机的初始发射位置velocity=800     #飞机速度time=1/1000      #每个时间片的长度clock=pygame.time.Clock()A=()B=()C=()while True:    for event in pygame.event.get(): if event.type==pygame.QUIT:     sys.exit()    clock.tick(300)    x,y=pygame.mouse.get_pos()   #获取鼠标位置，鼠标就是需要追踪的目标    distance=sqrt(pow(x1-x,2)+pow(y1-y,2))      #两点距离公式    section=velocity*time #每个时间片需要移动的距离    sina=(y1-y)/distance    cosa=(x-x1)/distance    angle=atan2(y-y1,x-x1)#两点间线段的弧度值    fangle=degrees(angle) #弧度转角度    x1,y1=(x1+section*cosa,y1-section*sina)    missiled=pygame.transform.rotate(missile,-(fangle))    if 0<=-fangle<=90: A=(width*cosa+x1-width,y1-height/2) B=(A[0]+height*sina,A[1]+height*cosa)    if 90<-fangle<=180: A = (x1 - width, y1 - height/2+height*(-cosa)) B = (x1 - width+height*sina, y1 - height/2)    if -90<=-fangle<0: A = (x1 - width+missiled.get_width(), y1 - height/2+missiled.get_height()-height*cosa) B = (A[0]+height*sina, y1 - height/2+missiled.get_height())    if -180<-fangle<-90: A = (x1-width-height*sina, y1 - height/2+missiled.get_height()) B = (x1 - width,A[1]+height*cosa )    C = ((A[0] + B[0]) / 2, (A[1] + B[1]) / 2)    screen.fill((0,0,0))    screen.blit(missiled, (x1-width+(x1-C[0]),y1-height/2+(y1-C[1])))    screen.blit(textc, (x,y)) #鼠标用一个红色*代替    pygame.display.update()