From: Perttu Ahola Date: Sat, 23 Jul 2011 22:51:27 +0000 (+0300) Subject: who put pnoise.py in my /? X-Git-Tag: 0.2.20110731_3~45 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=8250d520cebb8768f77fce202f8223c18cddeed7;p=oweals%2Fminetest.git who put pnoise.py in my /? --- diff --git a/pnoise.py b/pnoise.py deleted file mode 100644 index fcab5ac15..000000000 --- a/pnoise.py +++ /dev/null @@ -1,102 +0,0 @@ -# -# A python perlin noise implementation, from -# http://www.fundza.com/c4serious/noise/perlin/perlin.html -# -# This is used for testing how to create maps with a python script. -# - -import math -p = ( -151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103, -30,69,142,8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197, -62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,174,20, -125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231, -83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244,102, -143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,89,18,169,200, -196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226, -250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16, -58,17,182,189,28,42,223,183,170,213,119,248,152,2,44,154,163,70, -221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113, -224,232,178,185,112,104,218,246,97,228,251,34,242,193,238,210,144, -12,191,179,162,241,81,51,145,235,249,14,239,107,49,192,214,31,181, -199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236, -205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180, -151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103, -30,69,142,8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197, -62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,174,20, -125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231, -83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244,102, -143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,89,18,169,200, -196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226, -250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16, -58,17,182,189,28,42,223,183,170,213,119,248,152,2,44,154,163,70, -221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113, -224,232,178,185,112,104,218,246,97,228,251,34,242,193,238,210,144, -12,191,179,162,241,81,51,145,235,249,14,239,107,49,192,214,31,181, -199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236, -205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180) - -def lerp(t, a, b): - return a + t * (b - a) - -def fade(t): - return t * t * t * (t * (t * 6 - 15) + 10) - -def grad(hash, x, y, z): - h = hash & 15 - if h < 8: - u = x - else: - u = y - if h < 4: - v = y - elif h == 12 or h == 14: - v = x - else: - v = z - if h & 1 != 0: - u = -u - if h & 2 != 0: - v = -v - return u + v - -def pnoise(x, y, z): - global p - X = int(math.floor(x)) & 255 - Y = int(math.floor(y)) & 255 - Z = int(math.floor(z)) & 255 - x -= math.floor(x) - y -= math.floor(y) - z -= math.floor(z) - - u = fade(x) - v = fade(y) - w = fade(z) - - A = p[X] + Y - AA = p[A] + Z - AB = p[A + 1] + Z - B = p[X + 1] + Y - BA = p[B] + Z - BB = p[B + 1] + Z - - pAA = p[AA] - pAB = p[AB] - pBA = p[BA] - pBB = p[BB] - pAA1 = p[AA + 1] - pBA1 = p[BA + 1] - pAB1 = p[AB + 1] - pBB1 = p[BB + 1] - - gradAA = grad(pAA, x, y, z) - gradBA = grad(pBA, x-1, y, z) - gradAB = grad(pAB, x, y-1, z) - gradBB = grad(pBB, x-1, y-1, z) - gradAA1 = grad(pAA1,x, y, z-1) - gradBA1 = grad(pBA1,x-1, y, z-1) - gradAB1 = grad(pAB1,x, y-1, z-1) - gradBB1 = grad(pBB1,x-1, y-1, z-1) - return lerp(w, - lerp(v, lerp(u, gradAA, gradBA), lerp(u, gradAB, gradBB)), - lerp(v, lerp(u, gradAA1,gradBA1),lerp(u, gradAB1,gradBB1)))