def expand_fixed_size_areas(self):
"""
Expand cell commands of the form 'd(20x20)' to their corresponding
areas (in this example a 20x20 designation of d's) and mark those
areas as plotted.
"""
label = self.label
for y, row in enumerate(self.grid.rows):
for x, cell in enumerate(row):
# act on d(5x5) styles cells which haven't been plotted over
m = re.match(r'(.+)\((\d+)x(\d+)\)', cell.command)
if cell.plottable and m:
command = m.group(1)
width, height = (int(c) for c in m.group(2, 3))
area = Area((x, y), (x + width - 1, y + height - 1))
# ensure the grid is large enough to accept the expansion
self.grid.expand_dimensions(x + width, y + height)
# mark this area as plotted
self.grid.set_area_cells(area, False, label, command)
label = next_label(label)
# set each corner's area variable
for corner in area.corners:
cornercell = self.grid.get_cell(*corner)
cornercell.command = command
cornercell.area = area
self.label = label
loglines('area', lambda: Grid.str_area_labels(self.grid))
return
def find_largest_area_from(self, x, y):
"""
Find the largest area that can be drawn with (x, y) as one of its corners.
Returns the Area found, which will be at least 1x1 in size.
"""
# To start we build a list of direction pairs we'll want to test.
# We need to check each compass direction paired with both
# 90-degree rotations from each compass direction: NE, NW, EN,
# ES, ...
# These represent the 4 quadrants created by partitioning the grid
# through the axes which pos sits on, and the inversions of each quad;
# SE & ES is one such quad pair. Each quad overlaps at pos;
# similarly, each quad shares two of its edges with adjacent quads.
bestarea = Area((x, y), (x, y))
# find the biggest area(s) formable from each dir_pair quad
for dirs in self.dir_pairs:
area = self.find_largest_area_in_quad(x, y, dirs[0], dirs[1],
bestarea)
if area is not None:
bestarea = area
return bestarea
def setsize_build(self, start, end):
"""
Standard sizing mechanism for the build buildtype.
Returns keys, pos:
keys needed to make the currently-designating area the correct size
pos is where the cursor ends up after sizing the area
"""
# move cursor halfway to end from start
mid = midpoint(start, end)
keys = self.move(start, mid)
# resize construction
area = Area(start, end)
keys += ['{widen}'] * (area.width() - 1)
keys += ['{heighten}'] * (area.height() - 1)
return keys, mid
def setsize_build(self, start, end):
"""
Standard sizing mechanism for the build buildtype.
Returns keys, pos:
keys needed to make the currently-designating area the correct size
pos is where the cursor ends up after sizing the area
"""
# move cursor halfway to end from start
mid = midpoint(start, end)
keys = self.move(start, mid)
# resize construction
area = Area(start, end)
keys += ['{widen}'] * (area.width() - 1)
keys += ['{heighten}'] * (area.height() - 1)
return keys, mid
def discover_areas(self):
"""
Repeatedly plot the largest contiguous areas possible until
there are no more areas left to plot.
"""
testarea = Area((0, 0), (self.grid.width - 1, self.grid.height - 1))
while True:
loglines('area', lambda: Grid.str_area_labels(self.grid))
logmsg('area', 'Marking largest plottable areas starting ' + \
'with label %s' % self.label)
self.label = self.mark_largest_plottable_areas(self.label)
# if every single cell is non-plottable (already plotted)..
if not self.grid.is_area_plottable(testarea, True):
logmsg('area', 'All areas discovered:')
loglines('area', lambda: Grid.str_area_labels(self.grid))
return
raise AreaPlotterError("Unable to plot all areas for unknown reason")
def find_largest_area_in_quad(self, x, y, dir1, dir2, bestarea):
"""
Given the quad starting at (x, y) and formed by dir1 and dir2
(treated as rays with (x, y) as origin), we find the max
contiguous-cell distance along dir1, then for each position
along dir1, we find the max contiguous-cell distance along
dir2. This allows us to find the largest contiguous area
constructable by travelling down dir1, then at a right angle
along dir2 for each position.
Returns the largest area found.
"""
command = self.grid.get_cell(x, y).command
# Get the min/max size that this area may be, based on the command
sizebounds = self.buildconfig.get('sizebounds', command) \
or (1, 1000, 1, 1000) # default sizebounds are very large
# Get the max width of this area on the axis defined by
# pos and dir1 direction, and max width from
# the dir2.
# width and height are conceptually aligned to an
# east(dir1) x south(dir2) quad below.
maxwidth = self.grid.count_contiguous_cells(x, y, dir1)
maxheight = self.grid.count_contiguous_cells(x, y, dir2)
if maxwidth < sizebounds[0]:
# constructions narrower than the minimum width for this
# command are ineligible to be any larger than 1 wide
maxwidth = 1
elif maxwidth > sizebounds[1]:
# don't let constructions be wider than allowed
maxwidth = sizebounds[1]
if maxheight < sizebounds[2]:
# constructions shorter than the minimum height for this
# command are ineligible to be any larger than 1 tall
maxheight = 1
elif maxheight > sizebounds[3]:
# don't let constructions be taller than allowed
maxheight = sizebounds[3]
if maxwidth * maxheight < bestarea.size():
return None # couldn't be larger than the best one yet found
if maxheight == 1 and maxwidth == 1:
# 1x1 area, just return it
return Area((x, y), (x, y))
# (width x 1) sized area
bestarea = Area((x, y),
add_points((x, y),
scale_point(dir1.delta(), maxwidth - 1)))
for ydelta in range(1, maxheight):
(xt, yt) = add_points((x, y), scale_point(dir2.delta(), ydelta))
height = ydelta + 1
width = self.grid.count_contiguous_cells(xt, yt, dir1)
if width > maxwidth:
# this row can't be wider than previous rows
width = maxwidth
elif width < maxwidth:
# successive rows can't be wider than this row
maxwidth = width
if width * height > bestarea.size():
bestarea = Area((x, y),
add_points((xt, yt),
scale_point(dir1.delta(),
width - 1)))
else:
continue
return bestarea
def find_largest_area_in_quad(self, x, y, dir1, dir2, bestarea):
"""
Given the quad starting at (x, y) and formed by dir1 and dir2
(treated as rays with (x, y) as origin), we find the max
contiguous-cell distance along dir1, then for each position
along dir1, we find the max contiguous-cell distance along
dir2. This allows us to find the largest contiguous area
constructable by travelling down dir1, then at a right angle
along dir2 for each position.
Returns the largest area found.
"""
command = self.grid.get_cell(x, y).command
# Get the min/max size that this area may be, based on the command
sizebounds = self.buildconfig.get('sizebounds', command) \
or (1, 1000, 1, 1000) # default sizebounds are very large
# Get the max width of this area on the axis defined by
# pos and dir1 direction, and max width from
# the dir2.
# width and height are conceptually aligned to an
# east(dir1) x south(dir2) quad below.
maxwidth = self.grid.count_contiguous_cells(x, y, dir1)
maxheight = self.grid.count_contiguous_cells(x, y, dir2)
if maxwidth < sizebounds[0]:
# constructions narrower than the minimum width for this
# command are ineligible to be any larger than 1 wide
maxwidth = 1
elif maxwidth > sizebounds[1]:
# don't let constructions be wider than allowed
maxwidth = sizebounds[1]
if maxheight < sizebounds[2]:
# constructions shorter than the minimum height for this
# command are ineligible to be any larger than 1 tall
maxheight = 1
elif maxheight > sizebounds[3]:
# don't let constructions be taller than allowed
maxheight = sizebounds[3]
if maxwidth * maxheight < bestarea.size():
return None # couldn't be larger than the best one yet found
if maxheight == 1 and maxwidth == 1:
# 1x1 area, just return it
return Area((x, y), (x, y))
# (width x 1) sized area
bestarea = Area((x, y),
add_points(
(x, y),
scale_point(dir1.delta(), maxwidth - 1)
)
)
for ydelta in range(1, maxheight):
(xt, yt) = add_points(
(x, y),
scale_point(dir2.delta(), ydelta)
)
height = ydelta + 1
width = self.grid.count_contiguous_cells(xt, yt, dir1)
if width > maxwidth:
# this row can't be wider than previous rows
width = maxwidth
elif width < maxwidth:
# successive rows can't be wider than this row
maxwidth = width
if width * height > bestarea.size():
bestarea = Area((x, y),
add_points(
(xt, yt),
scale_point(dir1.delta(), width - 1)
)
)
else:
continue
return bestarea
def __init__(self, name, convex, feature=[]):
self.name = name
Area.__init__(self, convex)
Feature.__init__(self, feature)
