43 lines
947 B
Python
43 lines
947 B
Python
def getBlockAsInteger(x, y, z):
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return z * 16777216 + y * 4096 + x
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def unsignedToSigned(i, max_positive):
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if i < max_positive:
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return i
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else:
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return i - 2 * max_positive
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def getIntegerAsBlock(i):
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x = unsignedToSigned(i % 4096, 2048)
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i = int((i - x) / 4096)
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y = unsignedToSigned(i % 4096, 2048)
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i = int((i - y) / 4096)
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z = unsignedToSigned(i % 4096, 2048)
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return x,y,z
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def readU8(f):
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return ord(f.read(1))
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def readU16(f):
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return ord(f.read(1)) * 256 + ord(f.read(1))
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def readU32(f):
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return ord(f.read(1)) * 256 * 256 * 256 + ord(f.read(1)) * 256 * 256 + ord(f.read(1)) * 256 + ord(f.read(1))
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def readS32(f):
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return unsignedToSigned(ord(f.read(1)) * 256 * 256 * 256 + ord(f.read(1)) * 256 * 256 + ord(f.read(1)) * 256 + ord(f.read(1)), 2 ** 31)
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def gridToCoords(row, col):
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return (row - col) / 2, (row + col) / 2
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def coordsToGrid(x, z):
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return x + z, z - x
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