73 lines
2.0 KiB
Python
73 lines
2.0 KiB
Python
import os
|
|
from math import sin, cos
|
|
|
|
def main():
|
|
a=0
|
|
b=0
|
|
|
|
height=24
|
|
width=80
|
|
#height=int(input("Enter Screen Height : "))
|
|
#width=int(input("Enter Screen Width : "))
|
|
|
|
# for clearing console (windows and unix systems)
|
|
clear = "cls"
|
|
if os.name == "posix":
|
|
clear = "clear"
|
|
|
|
os.system(clear)
|
|
while True:
|
|
z = [0 for _ in range(4*height*width)]
|
|
screen = [' ' for _ in range(height*width)]
|
|
|
|
j=0
|
|
while j<6.28:
|
|
j+=0.07
|
|
i=0
|
|
while i<6.28:
|
|
i+=0.02
|
|
|
|
sinA=sin(a)
|
|
cosA=cos(a)
|
|
cosB=cos(b)
|
|
sinB=sin(b)
|
|
|
|
sini=sin(i)
|
|
cosi=cos(i)
|
|
cosj=cos(j)
|
|
sinj=sin(j)
|
|
|
|
cosj2=cosj+2
|
|
mess=1/(sini*cosj2*sinA+sinj*cosA+5)
|
|
t=sini*cosj2*cosA-sinj* sinA
|
|
|
|
# 40 is the left screen shift
|
|
x = int(40+30*mess*(cosi*cosj2*cosB-t*sinB))
|
|
# 12 is the down screen shift
|
|
y = int(11+15*mess*(cosi*cosj2*sinB +t*cosB))
|
|
# all are casted to int, ie floored
|
|
o = int(x+width*y)
|
|
# multiplying by 8 to bring in range 0-11 as 8*(sqrt(2))=11
|
|
# because we have 11 luminance characters
|
|
N = int(8*((sinj*sinA-sini*cosj*cosA)*cosB-sini*cosj*sinA-sinj*cosA-cosi *cosj*sinB))
|
|
# if x,y inside screen and previous z-buffer is < mess
|
|
# i.e. when z[o] is 0 or the prev point is behind the new point
|
|
# so we change it to the point nearer to the eye/ above prev point
|
|
if 0<y<height and 0<x<width and z[o] < mess:
|
|
z[o]=mess
|
|
screen[o]=".,-~:;=!*#$@"[N if N>0 else 0]
|
|
|
|
# prints
|
|
os.system(clear)
|
|
for index, char in enumerate(screen):
|
|
if index % width == 0:
|
|
print()
|
|
else:
|
|
print(char, end='')
|
|
|
|
# increments
|
|
a+=0.04
|
|
b+=0.02
|
|
|
|
if __name__ == "__main__":
|
|
main() |