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MineClone2/tools/create_texture__mcl_portals...

59 lines
1.1 KiB
Python

import png
w, h = 64, 256;
s = [[int(0) for c in range(w)] for c in range(h)]
def line(y1, x1, y2, x2, v):
signx = 1
signy = 1
dx = x2 - x1
dy = y2 - y1
if dx < 0:
dx = - dx
signx = -1
if dy < 0:
dy = - dy
signy = -1
offsx = dx/2
offsy = dy/2
dir1 = 0
if dx >= dy:
dir1 = 1
for i in range(max(dx, dy)+1):
if v==2:
s[x1][y1]=1-s[x1][y1]
else:
s[x1][y1] = v
if dir1 == 1:
x1 += signx
offsy += dy
if offsy >= dx:
y1 += signy
offsy -= dx
else:
y1 += signy
offsx += dx
if offsx >= dy:
x1 += signx
offsx -= dy
# R, G, B, Alpha (0xFF = opaque):
palette=[(0x00,0x00,0xaf,0xa0), (0x7f,0x0f,0xaf,0xb8)]
for j in range(16):
i = j * 4
line(i, 0, 63-i, 63, 2)
line(63, i, 0, 63-i, 2)
i+=1
line(i, 64, 63-i, 127, 2)
line(63, 64+i, 0, 127-i, 2)
i+=1
line(i, 128, 63-i, 191, 2)
line(63, 128+i, 0, 191-i, 2)
i+=1
line(i, 192, 63-i, 255, 2)
line(63, 192+i, 0, 255-i, 2)
w = png.Writer(len(s[0]), len(s), palette=palette, bitdepth=1)
f = open('mcl_portals_portal.png', 'wb')
w.write(f, s)