def _light_offset(self,
x,
y,
offset,
dropoff,
intensity,
iteration,
is_corner=False):
"""
Call light function with given offset
"""
_ox, _oy = offset
if _ox != 0 or _oy != 0: # No need to light same point
light = self.world.get_light(x + _ox, y + _oy)
if light is None:
return # "None" means "out of world"
dist = sqrt(_ox * _ox + _oy * _oy)
target_intensity = ubyte(intensity * pow(dropoff, dist))
# Calculate next block light level (ubyte - unsigned byte)
if light < target_intensity:
chunk = self.world.get_chunk(x + _ox, y + _oy)
try:
Shadow.add_updated(chunk.shadow)
self._light_block(x,
y,
_ox,
_oy,
intensity=target_intensity,
iteration=iteration + 1,
is_corner=is_corner)
except Exception as e:
if type(e) is not Exception:
traceback.print_exc()
def _unlight_offset(self,
x,
y,
ix,
iy,
offset,
unlit_blocks,
is_corner=False):
"""
Call unlight function with given offset
"""
_ox, _oy = offset
if _ox != 0 or _oy != 0: # No need to unlight same point
nlight = self.world.get_light(x + _ox, y + _oy)
light = self.world.get_light(x, y)
if light is None or nlight is None:
return # "None" means "out of world"
if nlight < light:
chunk = self.world.get_chunk(x + _ox, y + _oy)
try:
Shadow.add_updated(chunk.shadow)
self._unlight_block(x + _ox,
y + _oy,
ix,
iy,
unlit_blocks,
_ox,
_oy,
is_corner=is_corner)
except Exception as e:
if type(e) is not Exception:
traceback.print_exc()