def start_drawing(
self,
editor: map_editor.MapEditor,
sector: map_objects.EditorSector,
hit_point: core.Point3,
insert: bool,
):
self._editor = editor
self._sector = sector
if insert and self._sector is not None:
for editor_wall in self._sector.walls:
distance_to_wall = editor_wall.line_segment.get_point_distance(
hit_point.xy)
if (distance_to_wall is not None
and distance_to_wall < self._editor.snapper.grid_size):
insert = False
projected_point = editor_wall.line_segment.project_point(
hit_point.xy)
hit_point.x = projected_point.x
hit_point.y = projected_point.y
break
self._insert = insert
position_2d = self._editor.snapper.snap_to_grid_2d(hit_point.xy)
if not self._insert:
point_neat_wall = self._point_near_wall(hit_point.xy)
if point_neat_wall is not None:
position_2d = point_neat_wall
self._current_point = position_2d
self._points[:] = [self._current_point]
grid_position = core.Point3(position_2d.x, position_2d.y,
self._floor_z_at_point(position_2d))
self._display.start_drawing(self._sector, grid_position,
self._editor.snapper)
self._update_debug_display()
