LogalDeveloper/Minecraft-Overviewer
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Make chunk to tile coords aware of new north

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This commit is contained in:
Ryan Rector
2011-07-10 06:49:37 -06:00
parent 954fb18a4c
commit 7380ed08de
1 changed files with 19 additions and 7 deletions
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26
world.py
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@@ -69,9 +69,11 @@ class World(object):
mincol = maxcol = minrow = maxrow = 0
def __init__(self, worlddir, useBiomeData=False,regionlist=None):
def __init__(self, worlddir, useBiomeData=False,regionlist=None,
north_direction="upper-right"):
self.worlddir = worlddir
self.useBiomeData = useBiomeData
self.north_direction = north_direction
#find region files, or load the region list
#this also caches all the region file header info
@@ -182,17 +184,27 @@ class World(object):
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)
if self.north_direction == 'lower-left':
return (chunkx + chunky, chunky - chunkx)
elif self.north_direction == 'lower-right':
return (chunkx + chunky, chunkx - chunky)
elif self.north_direction == 'upper-left':
return (chunkx - chunky, chunkx + chunky)
elif self.north_direction == 'upper-right':
return (chunky - chunkx, chunkx + chunky)
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)
if self.north_direction == 'lower-left':
return ((col - row) / 2, (row + col) / 2)
if self.north_direction == 'lower-right':
return ((col + row) / 2, (col - row) / 2)
if self.north_direction == 'upper-left':
return ((col + row) / 2, (row - col) / 2)
if self.north_direction == 'upper-right':
return ((row - col) / 2, (col + row) / 2)
def findTrueSpawn(self):
"""Adds the true spawn location to self.POI. The spawn Y coordinate