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#
# Code under the MIT license by Alexander Pruss
#
from mc import *
import sys
def draw_surface(xf,yf,zf,a0,a1,asteps,b0,b1,bsteps,ox,oy,oz,scalex,scaley,scalez,mcblock,mcmeta):
cfx = compile(xf,'<string>','eval')
cfy = compile(yf,'<string>','eval')
cfz = compile(zf,'<string>','eval')
for i in xrange(asteps):
a = (a0 * (asteps-1-i) + a1 * i) / asteps
for j in xrange(bsteps):
b = (b0 * (bsteps-1-j) + b1 * j) / bsteps
x = eval(cfx)
y = eval(cfy)
z = eval(cfz)
# print a,b,ox+x * scalex, oy+y * scaley, oz+z * scalez
mc.setBlock(ox+x * scalex, oy+y * scaley, oz+z * scalez, mcblock, mcmeta)
mc = Minecraft()
playerPos = mc.player.getPos()
xformula = '(3 + a * cos(b/2)) * cos(b)'
yformula = 'a * sin(b/2)'
zformula = '(3 + a * cos(b/2)) * sin(b)'
scale = 15
b = STONE
m = 0
if (len(sys.argv)>1):
b = int(sys.argv[1])
if (len(sys.argv)>2):
m = int(sys.argv[2])
draw_surface(xformula,yformula,zformula,-1.,1.,10*scale,0,2*pi,30*scale,playerPos.x,playerPos.y+scale,playerPos.z,scale,scale,scale,b, m)
mc.postToChat("Formula done")
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