马年红包封面代码:印象跑马动作模拟

# curveline-3.pyimport numpy as npimport pygame"""_xOff = 120_yOff = 40scale = 50#"""#def gen_ecllips_frontleg_beautiful_dumb# 下划线输入比较麻烦，代码中有时有省略# 先计算曲轴，再计算连杆，成功。与先计算连杆运动，再计算曲轴相比，前者更简洁。# 重新开始，先计算一个椭圆圆周运动的曲轴，再尝试曲轴顶端任意旋转，# 并将 currenttime 作为参数继续传给下一个子程序## 放弃后腿，转移至前腿，并将发力点 移至前大腿根部## 定义 beautifulfrontleg，输出beautifulfrontleg，仅绘制beautifulfrontleg# 其他非 beautifulfronleg 坐标数据不再绘制 ###### 注：本段代码中， frontleg_dots 实际上是虚拟的“椭圆曲轴连杆”，legs 是所谓的抽象马/印象马前腿点阵坐标# ##def gen_ecllipsfrontlegdeautfuldumb(currenttime: float):    pygame.display.set_caption("红包封面：跑马尝试[前腿 frontleg]")    xOff = 450    yOff = 300    angleOff = 90    _L = 250    _S = 100     # 椭圆长轴    _S_S = 40    # 椭圆短轴    frongleg_dots = []    current_position = currenttime % 36    a = current_position * 10 + angleOff    aR = a * np.pi / 180    # 曲轴顶点坐标    x1 = np.cos(aR) * _S    y1 = -np.sin(aR) * _S_S    frongleg_dots.append((x1, y1))    ### pygame.draw.circle(screen, (0,200,0, 50),(int(x1+xOff),int(y1+yOff)), 7)    # 曲轴副属各点坐标    for i in range(2):        x = np.cos(aR) * _S / 3 * (i+1)        y = -np.sin(aR) * _S_S / 3 * (i+1)        frongleg_dots.append((x, y))        ### pygame.draw.circle(screen, (0,200,0, 50),(int(x+xOff),int(y+yOff)), 5)    # 连杆顶点坐标    x = xOff    y = np.sqrt(_L**2 - abs(x1)**2) - y1    # print(y)    frongleg_dots.append((x, y))    ### pygame.draw.circle(screen, (250, 0,0, 110),(int(x),int(yOff-y)), 7)    # 连杆附属各点    xSeg = x1 / 9    ySeg = abs(y1 + y) / 9    for i in range(9):        _x = (i+1) * xSeg        _y = (i+1) * ySeg        frongleg_dots.append((_x, _y))        ### pygame.draw.circle(screen, (200, 200, 0, 50), (int(xOff + _x), int(yOff-y+_y)), 5)    ### pygame.draw.circle(screen, (250, 250, 0, 110),(int(xOff),int(yOff)), 4)    legs = []    legs.append((x1+xOff, y1+yOff))    newX, newY, legs2 = draw_curve_stop_at_any_dot_output(currenttime, 185, 250, 185, x1+xOff, y1+yOff)    for i in range(len(legs2)):        legs.append(legs2[i])    newX, newY, legs2 = draw_curve_stop_at_any_dot_output(currenttime, 180, 350, 185, newX, newY)    for i in range(len(legs2)):        legs.append(legs2[i])    screen.blit(font.render("v2.3 [曲轴 任意方向连杆]", True, (255, 255, 255)), (20, 40))    screen.blit(font.render("v2.4 [椭圆 曲轴 任意方向连杆]", True, (255, 255, 255)), (20, 60))    screen.blit(font.render("v2.5 [转移至前腿 调整旋转方向至左下方]", True, (255, 255, 255)), (20, 80))    screen.blit(font.render("v2.6 [在圆心和即时转角位置之间画点]", True, (255, 255, 255)), (20, 100))    screen.blit(font.render("v2.7 [将前腿各点位置坐标输出，并且与曲轴点坐标相区别]", True, (255, 255, 255)), (20, 120))    return frongleg_dots, legs#def draw_curve_stop_at_any_dot_output()# 在任意位置按指定半径画圆，# 并在给定的 startangle, stopangle 之间根据时间输出当前即时位置, 返回时角度以当前时间而定## 并在新绘制的 当前时间转角圆周点 与 圆心 之间 以适当间隔 绘制 “圆点”## 同时保留点坐标数据，输出点坐标数据 ##def draw_curve_stop_at_any_dot_output(currenttime: float, startangle, stopangle: float, radius:float, atX: int, atY: int):    _xOff = atX    _yOff = atY    #pygame.draw.ellipse(screen, (205,5,255), ((atX-radius,atY-radius),(2*radius,2*radius)),1)    a = startangle * np.pi / 180    x = np.cos(a) * radius + _xOff    y = -np.sin(a) * radius + _yOff    #pygame.draw.circle(screen, (0,200,0, 50),(int(x),int(y)), 5)    b = stopangle * np.pi / 180    x = np.cos(b) * radius + _xOff    y = -np.sin(b) * radius + _yOff    #pygame.draw.circle(screen, (200,0,0, 50),(int(x),int(y)), 5)    legdots = []    current_position = currenttime % 36    aSeg = (stopangle - startangle) / 18    atAngle = stopangle - abs(18-current_position) * aSeg    aRad = atAngle * np.pi / 180    x = np.cos(aRad) * radius + atX    y = -np.sin(aRad) * radius + atY    #legdots.append((x, y))    #pygame.draw.circle(screen, (0,200,200, 50),(int(x),int(y)), 5)    #pygame.draw.line(screen, (250,0,250),(int(x),int(y)),(int(atX),int(atY)),2)    xSeg = (x - atX) / 4    ySeg = (y - atY) / 4    for i in range(4):        _x = (i+1) * xSeg        _y = (i+1) * ySeg        legdots.append((atX + _x, atY + _y))        #pygame.draw.circle(screen, (200, 200, 0, 50), (int(atX + _x ), int(atY + _y)), 10)    return x, y, legdotsdef show_legdots(currenttime: float, legdots):    screen.fill((20,20,20,30))    for x, y in legdots:        pygame.draw.circle(screen, (200,250,50,100),(int(x),int(y)), 5)def show_legdots_flash(currenttime: float, legdots):    #screen.fill((0,0,0))    currentFlashPos = int(currenttime % 2)    idx = -1    for _x, _y in legdots:        idx += 1        if idx % 2 == currentFlashPos % 2:            _r_, _g_, _b_ = 254, 50, 0            #_r_,_g_, _b_ = 250, 100, 50        else:            _r_, _g_, _b_ = 200, 200, 40            #_r_,_g_, _b_ = 200, 250, 20        pygame.draw.circle(screen, (_r_, _g_, _b_, 100), (_x, _y), 10)    #for x, y in legdots:    #    pygame.draw.circle(screen, (200,250,50,100),(int(x),int(y)), 5)#def show_legdots_flash_large 在最后绘制闪缩效果时，再叠加一次临时放大，重新指定 放大基点和放大系数def show_legdots_flash_large(currenttime: float, legdots, pt, scale):    #screen.fill((0,0,0))    cX, cY = pt    currentFlashPos = int(currenttime % 2)    idx = -1    for _x, _y in legdots:        xLen = _x - cX        yLen = _y - cY        __x = xLen * scale + cX        __y = yLen * scale + cY        idx += 1        if idx % 2 == currentFlashPos % 2:            _r_, _g_, _b_ = 254, 50, 0            #_r_,_g_, _b_ = 250, 100, 50        else:            _r_, _g_, _b_ = 200, 200, 40            #_r_,_g_, _b_ = 200, 250, 20        pygame.draw.circle(screen, (_r_, _g_, _b_, 100), (int(__x), int(__y)), int(20*scale))    #for x, y in legdots:    #    pygame.draw.circle(screen, (200,250,50,100),(int(x),int(y)), 5)pygame.init()screen = pygame.display.set_mode((1000, 720), pygame.RESIZABLE | pygame.HWSURFACE | pygame.SRCALPHA )pygame.display.set_caption("红包封面：")clock = pygame.time.Clock()font = pygame.font.SysFont("simhei", 18)speedDelta = 50scaleDelta = 6start_time = pygame.time.get_ticks() / speedDeltarunning = Truewhile running :    screen.fill((0, 0, 0, 0))    pygame.draw.ellipse(screen,(100, 10, 10,100),((10,220),(645,460)),0)    for event in pygame.event.get():        if event.type == pygame.QUIT:            running = False    now = pygame.time.get_ticks() / speedDelta    _, frontlegs = gen_ecllipsfrontlegdeautfuldumb(now-start_time)    # show_legdots(now-start_time, frontlegs)    # show_legdots_flash(now-start_time, frontlegs)    if scaleDelta > 1:        scaleDelta *= 0.995    show_legdots_flash_large(now-start_time, frontlegs, (360,330),scaleDelta)    pygame.draw.ellipse(screen,(0,0,0,0),((-155, 60),(973,780)),170)    pygame.draw.ellipse(screen,(100,100,254,100),((10,220),(645,460)),18)    pygame.draw.ellipse(screen,(254,100,100,100),((10,220),(645,460)),2)    pygame.draw.ellipse(screen,(254,100,100,100),((26,236),(613,427)),2)    screen.blit(font.render("图案：抽象马[印象马]", True, (255, 255, 255)), (20, 20))    pygame.display.flip()    clock.tick(60)pygame.quit()