Car Model: “Progress Bar Car”

# Car Model: "Progress Bar Car"
# Copyright (C) 2024 David Fan

from math import floor
from time import sleep

# f = fuel amount
# e = engine mass
# u = friction
# c = mechanical loss constant
# v = initial velocity
# x = initial position
# d = track length
# b = length of progress bar

f = 100
e = 1
u = .1
c = .1
v = 0
x = 0
d = 500
b = 40

# F = force
# m = mass of fuel tank
# a = acceleration

while(v > 0 or f > 0):

	if f > 0:
		F = 1
	else:
		F = 0

	m = .1 + .01*f

	a = F/(e + m) - u

	v = a + v - c*v
	x = v + x

	f = f - 1

	p = floor(b * x/d)

	print('a = {:+0.2f}, v = {:+1.1f}, x = {:=+7.2f} {}{}'.format(a,v,x, \
	 "_" * p, "-" * (b-p)))

	if x > d:
		print("Finish!")
		break

	sleep(.2)

if x < d:
	print("Did not finish")