Coding challenge #93

The solution for this is noted below

Coding challenge #93

Solution

import pygame
import math
import time
import os
from ctypes import POINTER, WINFUNCTYPE, windll
from ctypes.wintypes import BOOL, HWND, RECT
pygame.init()

window = pygame.display.set_mode((1200,600))

hwnd = pygame.display.get_wm_info()["window"]
prototype = WINFUNCTYPE(BOOL, HWND, POINTER(RECT))
paramflags = (1, "hwnd"), (2, "lprect")

GetWindowRect = prototype(("GetWindowRect", windll.user32), paramflags)
rect = GetWindowRect(hwnd)
print("top, left, bottom, right: ", rect.top, rect.left, rect.bottom, rect.right)

x = rect.left
y = rect.top
os.environ['SDL_VIDEO_WINDOW_POS'] = "%d,%d" % (x,y)


stampsx = []
stampsy = []
stampspx = []
stampspy = []
r1 = 200
r2 = 200
m1 = 40
m2 = 40
a1 = math.pi / 2
a2 = math.pi / 3
a1_v = 0
a2_v = 0
a1_a = 0
a2_a = 0
g = 1
px = r2 * math.sin(a2) + (r1 * math.sin(a1) + 600)
py = r2 * math.cos(a2) + (r1 * math.cos(a1) + 50)
mode = input("Line, dotted, or off? ")

pygame.display.set_caption("Project")
programIcon = pygame.image.load("icon.png")
pygame.display.set_icon(programIcon)

while True:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    window.fill(pygame.Color("WHITE"))

    num1a = -g * (2 * m1 + m2) * math.sin(a1)
    num2a = -m2 * g * math.sin(a1-2*a2)
    num3a = -2*math.sin(a1-a2)*m2
    num4a = a2_v*a2_v*r2+a1_v*a1_v*r1*math.cos(a1-a2)
    dena = r1 * (2*m1+m2-m2*math.cos(2*a1-2*a2))

    num1b = 2 * math.sin(a1-a2)
    num2b = (a1_v*a1_v*r1*(m1+m2))
    num3b = g * (m1 + m2) * math.cos(a1)
    num4b = a2_v*a2_v*r2*m2*math.cos(a1-a2)
    denb = r2 * (2*m1+m2-m2*math.cos(2*a1-2*a2))

    a1_a = (num1a + num2a + num3a*num4a) / dena
    a2_a = num1b*(num2b+num3b+num4b) / denb

    x1 = r1 * math.sin(a1) + 600
    y1 = r1 * math.cos(a1) + 50

    x2 = r2 * math.sin(a2) + x1
    y2 = r2 * math.cos(a2) + y1

    pygame.draw.line(window, pygame.Color("BLACK"), (600,50), (x1, y1), 2)
    pygame.draw.circle(window, pygame.Color("BLACK"), (x1, y1), m1/2)

    if not mode == 'off':
        stampsx.append(x2)
        stampsy.append(y2)
        if mode == 'line':
            stampspx.append(px)
            stampspy.append(py)
            for i in range(0, len(stampsx)):
                pygame.draw.line(window, pygame.Color("BLACK"), (stampspx[i],stampspy[i]), (stampsx[i],stampsy[i]), 2)
        else:
            for i in range(0, len(stampsx)):
                pygame.draw.circle(window, pygame.Color("BLACK"), (stampsx[i],stampsy[i]), 2)
    pygame.draw.line(window, pygame.Color("BLACK"), (x1,y1), (x2, y2), 2)
    pygame.draw.circle(window, pygame.Color("BLACK"), (x2, y2), m1/2)

    a1_v += a1_a
    a2_v += a2_a
    a1 += a1_v
    a2 += a2_v

    px = x2
    py = y2

    pygame.display.update()
    time.sleep(0.02)

Try other methods by searching on the site. That is if this doesn’t work