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blacked donut.py #6

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95 changes: 53 additions & 42 deletions donut.py
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Original file line number Diff line number Diff line change
@@ -1,73 +1,84 @@
#!/usr/bin/env python
import os
from math import sin, cos


def main():
a=0
b=0
a = 0
b = 0

height = 24
width = 80
# height=int(input("Enter Screen Height : "))
# width=int(input("Enter Screen Width : "))

height=24
width=80
#height=int(input("Enter Screen Height : "))
#width=int(input("Enter Screen Width : "))

# for clearing console (windows and unix systems)
# 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)]
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
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)
sinA = sin(a)
cosA = cos(a)
cosB = cos(b)
sinB = sin(b)

sini=sin(i)
cosi=cos(i)
cosj=cos(j)
sinj=sin(j)
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
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))
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))
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]=".,-~:;=!*#$@"[N if N>0 else 0]
o = int(x + width * y)
# multiplying by 8 to bring in range 0-11 as 8*(sqrt(2))=11
# because we have 11 luminance characters
N = int(
8
* (
(sinj * sinA - sini * cosj * cosA) * cosB
- sini * cosj * sinA
- sinj * cosA
- cosi * cosj * sinB
)
)
# if x,y inside screen and previous z-buffer is < mess
# i.e. when z[o] is 0 or the prev point is behind the new point
# so we change it to the point nearer to the eye/ above prev point
if 0 < y < height and 0 < x < width and z[o] < mess:
z[o] = mess
screen[o] = ".,-~:;=!*#$@"[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='')
print(char, end="")

# increments
a+=0.04
b+=0.02
a += 0.04
b += 0.02


if __name__ == "__main__":
main()