def on_touch_down(self, touch):
"""
:param touch:
:rtype: void
"""
# Save current path.
self.player_path = []
# get if player can draw here
self.tile_identifier = get_tile_identifier(self, touch.x, touch.y)
if self.tile_identifier is None:
can_draw = False
else:
can_draw = can_start_stop(self.tile_identifier, self.map_canvas.points)
if not can_draw:
self.failed_attempts += 1
self.canvas.after.clear()
return
self.canvas.after.add(
Point(points=(touch.x, touch.y), texture=self.trace_texture, pointsize=self.touch_width)
)
# Save tile.
self.old_tile_identifier = self.tile_identifier[:]
self.player_path.append((self.tile_identifier[0], self.tile_identifier[1]))
self.old_point = [touch.x, touch.y]
touch.grab(self)
def on_touch_up(self, touch):
"""
:param touch:
:rtype: void
"""
if touch.grab_current is not self:
return
# get if player can draw here
self.tile_identifier = get_tile_identifier(self, touch.x, touch.y)
if self.tile_identifier is None:
can_draw = False
else:
can_draw = can_start_stop(self.tile_identifier, self.map_canvas.points)
if can_draw:
# Delete touch if player loose.
if self.is_path_correct():
return self.propagate_level_up()
else:
self.failed_attempts += 1
touch.ungrab(self)
self.canvas.after.clear()
return