55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
import math
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def render_frame(A, B):
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cosA = math.cos(A)
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sinA = math.sin(A)
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cosB = math.cos(B)
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sinB = math.sin(B)
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char_output = []
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zbuffer = []
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for i in range(screen_height + 1):
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char_output.append([' '] * (screen_width + 0))
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zbuffer.append([0] * (screen_width + 0))
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theta = 0
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while (theta < 2* math.pi):
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theta += theta_spacing
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costheta = math.cos(theta)
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sintheta = math.sin(theta)
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phi = 0
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while (phi < 2*math.pi):
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phi += phi_spacing
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cosphi = math.cos(phi)
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sinphi = math.sin(phi)
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circlex = R2 + R1*costheta
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circley = R1*sintheta
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x = circlex*(cosB*cosphi + sinA*sinB*sinphi) - circley*cosA*sinB
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y = circlex*(sinB*cosphi - sinA*cosB*sinphi) + circley*cosA*cosB
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z = K2 + cosA*circlex*sinphi + circley*sinA
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ooz = 1/z
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xp = int(screen_width/2 + K1*ooz*x)
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yp = int(screen_height/2 - K1*ooz*y)
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L = cosphi*costheta*sinB - cosA*costheta*sinphi - sinA*sintheta + cosB*(cosA*sintheta - costheta*sinA*sinphi)
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if L > 0:
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if ooz > zbuffer[xp][yp]:
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zbuffer[xp][yp] = ooz
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luminance_index = L*8
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char_output[xp][yp] = '.,-~:;=!*#$@'[int(luminance_index)]
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print('\x1b[H')
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for i in range(screen_height):
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for j in range(screen_width):
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print(char_output[i][j], end='')
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print()
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theta_spacing = 0.07
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phi_spacing = 0.02
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R1 = 1
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R2 = 2
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K2 = 5
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screen_width = 35
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screen_height = 35
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K1 = screen_width*K2*3/(8*(R1+R2))
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print('\x1b[2J')
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A = 1.0
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B = 1.0
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for i in range(250):
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render_frame(A, B)
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A += 0.08
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B += 0.03 |