LogalDeveloper/Minecraft-Overviewer
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moved quadtree.py to mtime-based update checking, and added a stub direct-to-tile renderer

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Aaron Griffith
2011-03-01 13:18:25 -05:00
parent f34d9739e9
commit 83d7a36ef4
3 changed files with 93 additions and 112 deletions
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29
world.py
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@@ -38,16 +38,6 @@ This module has routines for extracting information about available worlds
base36decode = functools.partial(int, base=36)
cached = collections.defaultdict(dict)
def _convert_coords(chunkx, chunky):
"""Takes a coordinate (chunkx, chunky) where chunkx and chunky are
in the chunk coordinate system, and figures out the row and column
in the image each one should be. Returns (col, row)."""
# columns are determined by the sum of the chunk coords, rows are the
# difference (TODO: be able to change direction of north)
return (chunkx + chunky, chunky - chunkx)
def base36encode(number, alphabet='0123456789abcdefghijklmnopqrstuvwxyz'):
'''
Convert an integer to a base36 string.
@@ -117,6 +107,23 @@ class World(object):
return os.path.join(self.worlddir, chunkFile)
def convert_coords(self, chunkx, chunky):
"""Takes a coordinate (chunkx, chunky) where chunkx and chunky are
in the chunk coordinate system, and figures out the row and column
in the image each one should be. Returns (col, row)."""
# columns are determined by the sum of the chunk coords, rows are the
# difference (TODO: be able to change direction of north)
# change this function, and you MUST change unconvert_coords
return (chunkx + chunky, chunky - chunkx)
def unconvert_coords(self, col, row):
"""Undoes what convert_coords does. Returns (chunkx, chunky)."""
# col + row = chunky + chunky => (col + row)/2 = chunky
# col - row = chunkx + chunkx => (col - row)/2 = chunkx
return ((col - row) / 2, (col + row) / 2)
def findTrueSpawn(self):
"""Adds the true spawn location to self.POI. The spawn Y coordinate
is almost always the default of 64. Find the first air block above
@@ -181,7 +188,7 @@ class World(object):
# Translate chunks to our diagonal coordinate system
mincol = maxcol = minrow = maxrow = 0
for chunkx, chunky in [(minx, miny), (minx, maxy), (maxx, miny), (maxx, maxy)]:
col, row = _convert_coords(chunkx, chunky)
col, row = self.convert_coords(chunkx, chunky)
mincol = min(mincol, col)
maxcol = max(maxcol, col)
minrow = min(minrow, row)