LogalDeveloper/Minecraft-Overviewer
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moved iteration code to its own function

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This commit is contained in:
Andrew Brown
2010-10-12 00:45:40 -04:00
parent a4c0e786a1
commit 8b7eddf2bf
1 changed files with 96 additions and 91 deletions
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187
chunk.py
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@@ -64,6 +64,21 @@ def get_blockdata_array(level):
in a similar manner to skylight data""" in a similar manner to skylight data"""
return numpy.frombuffer(level['Data'], dtype=numpy.uint8).reshape((16,16,64)) return numpy.frombuffer(level['Data'], dtype=numpy.uint8).reshape((16,16,64))
def iterate_chunkblocks(xoff,yoff):
"""Iterates over the 16x16x128 blocks of a chunk in rendering order.
Yields (x,y,z,imgx,imgy)
x,y,z is the block coordinate in the chunk
imgx,imgy is the image offset in the chunk image where that block should go
"""
for x in xrange(15,-1,-1):
for y in xrange(16):
imgx = xoff + x*12 + y*12
imgy = yoff - x*6 + y*6 + 128*12 + 16*12//2
for z in xrange(128):
yield x,y,z,imgx,imgy
imgy -= 12
# This set holds blocks ids that can be seen through, for occlusion calculations # This set holds blocks ids that can be seen through, for occlusion calculations
transparent_blocks = set([0, 6, 8, 9, 18, 20, 37, 38, 39, 40, 44, 50, 51, 52, 53, transparent_blocks = set([0, 6, 8, 9, 18, 20, 37, 38, 39, 40, 44, 50, 51, 52, 53,
59, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 83, 85]) 59, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 83, 85])
@@ -260,104 +275,94 @@ class ChunkRenderer(object):
if not img: if not img:
img = Image.new("RGBA", (384, 1728), (38,92,255,0)) img = Image.new("RGBA", (384, 1728), (38,92,255,0))
for x in xrange(15,-1,-1): for x,y,z,imgx,imgy in iterate_chunkblocks(xoff,yoff):
for y in xrange(16): blockid = blocks[x,y,z]
imgx = xoff + x*12 + y*12
imgy = yoff - x*6 + y*6 + 128*12 + 16*12//2
for z in xrange(128):
try:
blockid = blocks[x,y,z]
# the following blocks don't have textures that can be pre-computed from the blockid # the following blocks don't have textures that can be pre-computed from the blockid
# alone. additional data is required. # alone. additional data is required.
# TODO torches, redstone torches, crops, ladders, stairs, # TODO torches, redstone torches, crops, ladders, stairs,
# levers, doors, buttons, and signs all need to be handled here (and in textures.py) # levers, doors, buttons, and signs all need to be handled here (and in textures.py)
## minecart track, crops, ladder, doors, etc. ## minecart track, crops, ladder, doors, etc.
if blockid in textures.special_blocks: if blockid in textures.special_blocks:
# also handle furnaces here, since one side has a different texture than the other # also handle furnaces here, since one side has a different texture than the other
ancilData = blockData_expanded[x,y,z] ancilData = blockData_expanded[x,y,z]
try: try:
t = textures.specialblockmap[(blockid, ancilData)] t = textures.specialblockmap[(blockid, ancilData)]
except KeyError: except KeyError:
t = None t = None
else: else:
t = textures.blockmap[blockid] t = textures.blockmap[blockid]
if not t: if not t:
continue continue
# Check if this block is occluded # Check if this block is occluded
if cave and ( if cave and (
x == 0 and y != 15 and z != 127 x == 0 and y != 15 and z != 127
): ):
# If it's on the x face, only render if there's a # If it's on the x face, only render if there's a
# transparent block in the y+1 direction OR the z-1 # transparent block in the y+1 direction OR the z-1
# direction # direction
if ( if (
blocks[x,y+1,z] not in transparent_blocks and blocks[x,y+1,z] not in transparent_blocks and
blocks[x,y,z+1] not in transparent_blocks blocks[x,y,z+1] not in transparent_blocks
): ):
continue continue
elif cave and ( elif cave and (
y == 15 and x != 0 and z != 127 y == 15 and x != 0 and z != 127
): ):
# If it's on the facing y face, only render if there's # If it's on the facing y face, only render if there's
# a transparent block in the x-1 direction OR the z-1 # a transparent block in the x-1 direction OR the z-1
# direction # direction
if ( if (
blocks[x-1,y,z] not in transparent_blocks and blocks[x-1,y,z] not in transparent_blocks and
blocks[x,y,z+1] not in transparent_blocks blocks[x,y,z+1] not in transparent_blocks
): ):
continue continue
elif cave and ( elif cave and (
y == 15 and x == 0 y == 15 and x == 0
): ):
# If it's on the facing edge, only render if what's # If it's on the facing edge, only render if what's
# above it is transparent # above it is transparent
if ( if (
blocks[x,y,z+1] not in transparent_blocks blocks[x,y,z+1] not in transparent_blocks
): ):
continue continue
elif ( elif (
# Normal block or not cave mode, check sides for # Normal block or not cave mode, check sides for
# transparentcy or render unconditionally if it's # transparentcy or render unconditionally if it's
# on a shown face # on a shown face
x != 0 and y != 15 and z != 127 and x != 0 and y != 15 and z != 127 and
blocks[x-1,y,z] not in transparent_blocks and blocks[x-1,y,z] not in transparent_blocks and
blocks[x,y+1,z] not in transparent_blocks and blocks[x,y+1,z] not in transparent_blocks and
blocks[x,y,z+1] not in transparent_blocks blocks[x,y,z+1] not in transparent_blocks
): ):
# Don't render if all sides aren't transparent and # Don't render if all sides aren't transparent and
# we're not on the edge # we're not on the edge
continue continue
# Draw the actual block on the image. For cave images, # Draw the actual block on the image. For cave images,
# tint the block with a color proportional to its depth # tint the block with a color proportional to its depth
if cave: if cave:
img.paste(Image.blend(t[0],depth_colors[z],0.3), (imgx, imgy), t[1]) img.paste(Image.blend(t[0],depth_colors[z],0.3), (imgx, imgy), t[1])
else: else:
img.paste(t[0], (imgx, imgy), t[1]) img.paste(t[0], (imgx, imgy), t[1])
# Draw edge lines # Draw edge lines
if blockid in (44,): # step block if blockid in (44,): # step block
increment = 6 increment = 6
elif blockid in (78,): # snow elif blockid in (78,): # snow
increment = 9 increment = 9
else: else:
increment = 0 increment = 0
if blockid not in transparent_blocks or blockid in (78,): #special case snow so the outline is still drawn if blockid not in transparent_blocks or blockid in (78,): #special case snow so the outline is still drawn
draw = ImageDraw.Draw(img) draw = ImageDraw.Draw(img)
if x != 15 and blocks[x+1,y,z] == 0: if x != 15 and blocks[x+1,y,z] == 0:
draw.line(((imgx+12,imgy+increment), (imgx+22,imgy+5+increment)), fill=(0,0,0), width=1) draw.line(((imgx+12,imgy+increment), (imgx+22,imgy+5+increment)), fill=(0,0,0), width=1)
if y != 0 and blocks[x,y-1,z] == 0: if y != 0 and blocks[x,y-1,z] == 0:
draw.line(((imgx,imgy+6+increment), (imgx+12,imgy+increment)), fill=(0,0,0), width=1) draw.line(((imgx,imgy+6+increment), (imgx+12,imgy+increment)), fill=(0,0,0), width=1)
finally:
# Do this no mater how the above block exits
imgy -= 12
return img return img