def __init__(self, session, building, ship=None, build_related=None):
super(BuildingTool, self).__init__(session)
assert not (ship and build_related)
self.renderer = self.session.view.renderer['InstanceRenderer']
self.ship = ship
self._class = building
self.__init_selectable_component()
self.buildings = [] # list of PossibleBuild objs
self.buildings_action_set_ids = [] # list action set ids of list above
self.buildings_fife_instances = {} # fife instances of possible builds
self.buildings_missing_resources = {
} # missing resources for possible builds
self.rotation = 45 + random.randint(0, 3) * 90
self.start_point, self.end_point = None, None
self.last_change_listener = None
self._transparencified_instances = set(
) # fife instances modified for transparency
self._buildable_tiles = set() # tiles marked as buildable
self._related_buildings = set() # buildings highlighted as related
self._highlighted_buildings = set(
) # related buildings highlighted when preview is near it
self._build_logic = None
self._related_buildings_selected_tiles = frozenset(
) # highlights w.r.t. related buildings
if self.ship is not None:
self._build_logic = ShipBuildingToolLogic(ship)
elif build_related is not None:
self._build_logic = BuildRelatedBuildingToolLogic(
self, weakref.ref(build_related))
else:
self._build_logic = SettlementBuildingToolLogic(self)
self.load_gui()
self.__class__.gui.show()
self.session.ingame_gui.minimap_to_front()
self.session.gui.on_escape = self.on_escape
self.highlight_buildable()
WorldObjectDeleted.subscribe(self._on_worldobject_deleted)
SettlementInventoryUpdated.subscribe(self.update_preview)
PlayerInventoryUpdated.subscribe(self.update_preview)
def __init__(self, session, building, ship=None, build_related=None):
super(BuildingTool, self).__init__(session)
assert not (ship and build_related)
self.renderer = self.session.view.renderer['InstanceRenderer']
self.ship = ship
self._class = building
self.__init_selectable_component()
self.buildings = [] # list of PossibleBuild objs
self.buildings_action_set_ids = [] # list action set ids of list above
self.buildings_fife_instances = {} # fife instances of possible builds
self.buildings_missing_resources = {} # missing resources for possible builds
self.rotation = 45 + random.randint(0, 3)*90
self.start_point, self.end_point = None, None
self.last_change_listener = None
self._transparencified_instances = set() # fife instances modified for transparency
self._buildable_tiles = set() # tiles marked as buildable
self._related_buildings = set() # buildings highlighted as related
self._highlighted_buildings = set() # related buildings highlighted when preview is near it
self._build_logic = None
self._related_buildings_selected_tiles = frozenset() # highlights w.r.t. related buildings
if self.ship is not None:
self._build_logic = ShipBuildingToolLogic(ship)
elif build_related is not None:
self._build_logic = BuildRelatedBuildingToolLogic(self, weakref.ref(build_related) )
else:
self._build_logic = SettlementBuildingToolLogic(self)
self.load_gui()
self.__class__.gui.show()
self.session.ingame_gui.minimap_to_front()
self.session.gui.on_escape = self.on_escape
self.highlight_buildable()
WorldObjectDeleted.subscribe(self._on_worldobject_deleted)
SettlementInventoryUpdated.subscribe(self.update_preview)
PlayerInventoryUpdated.subscribe(self.update_preview)
class BuildingTool(NavigationTool, previewhandler.PreviewHandler):
"""Represents a dangling tool after a building was selected from the list.
Builder visualizes if and why a building can not be built under the cursor position.
@param building: selected building type"
@param ship: If building from a ship, restrict to range of ship
The building tool has been under heavy development for several years, it's a collection
of random artifacts that used to have a purpose once.
Terminology:
- Related buildings: Buildings lower in the hiearchy, needed by current building to operate (tree when building lumberjack)
- Inversely related building: lumberjack for tree. Need to show its range to place building, it must be in range.
- Building instances/fife instances: the image of a building, that is dragged around.
Main features:
- Display tab to the right, showing build preview icon and rotation button (draw_gui(), load_gui())
- Show buildable ground (highlight buildable) as well as ranges of inversely related buildings
- This also is called for tiles that need to be recolored, other highlights sometimes draw over
tiles, then this is called again to redo the original coloring.
- Catch mouse events and handle preview on map:
- Get tentative fife instances for buildings, draw them colored according to buildability
- Check for resources missing for build
- Making surrounding of preview transparent, so you see where you are building in a forest
- Highlight related buildings, that are in range
- Draw building range and highlight related buildings that are in range in this position (_color_preview_building)
- Initiate actual build (do_build)
- Clean up coloring, possibly end build mode
- Several buildability logics, strategy pattern via self._build_logic.
Interaction sequence:
- Init, comprises mainly of gui init and highlight_buildable
- Update, which is mainly controlled by preview_build
- Update highlights related to build
- Transparency
- Inversely related buildings in range (highlight_related_buildings)
- Related buildings in range (_color_preview_build)
- Set new instances
- During this time, don't touch anything set by highlight_buildable, or restore it later
- End, possibly do_build and on_escape
"""
#######################################################
#log = logging.getLogger("gui.buildingtool")
#buildable_color = (255, 255, 255)
#not_buildable_color = (255, 0, 0)
#related_building_color = (0, 192, 0)
#related_building_outline = (16, 228, 16, 2)
#nearby_objects_radius = 4
# archive the last roads built, for possible user notification
#_last_road_built = []
#send_hover_instances_update = False
#gui = None # share gui between instances
#######################################################
def __init__(self, session, building, ship=None, build_related=None):
super(BuildingTool, self).__init__(session)
assert not (ship and build_related)
self.renderer = self.session.view.renderer['InstanceRenderer']
self.ship = ship
self._class = building
self.__init_selectable_component()
self.buildings = [] # list of PossibleBuild objs
self.buildings_action_set_ids = [] # list action set ids of list above
self.buildings_fife_instances = {} # fife instances of possible builds
self.buildings_missing_resources = {
} # missing resources for possible builds
self.rotation = 45 + random.randint(0, 3) * 90
self.start_point, self.end_point = None, None
self.last_change_listener = None
self._transparencified_instances = set(
) # fife instances modified for transparency
self._buildable_tiles = set() # tiles marked as buildable
self._related_buildings = set() # buildings highlighted as related
self._highlighted_buildings = set(
) # related buildings highlighted when preview is near it
self._build_logic = None
self._related_buildings_selected_tiles = frozenset(
) # highlights w.r.t. related buildings
if self.ship is not None:
self._build_logic = ShipBuildingToolLogic(ship)
elif build_related is not None:
self._build_logic = BuildRelatedBuildingToolLogic(
self, weakref.ref(build_related))
else:
self._build_logic = SettlementBuildingToolLogic(self)
self.load_gui()
self.__class__.gui.show()
self.session.ingame_gui.minimap_to_front()
self.session.gui.on_escape = self.on_escape
self.highlight_buildable()
WorldObjectDeleted.subscribe(self._on_worldobject_deleted)
SettlementInventoryUpdated.subscribe(self.update_preview)
PlayerInventoryUpdated.subscribe(self.update_preview)
def __init_selectable_component(self):
self.selectable_comp = SelectableBuildingComponent
try:
template = self._class.get_component_template(SelectableComponent)
self.selectable_comp = SelectableComponent.get_instance(template)
except KeyError:
pass
def remove(self):
self.session.ingame_gui.resource_overview.close_construction_mode()
WorldObjectDeleted.unsubscribe(self._on_worldobject_deleted)
self._remove_listeners()
self._remove_building_instances()
self._remove_coloring()
self._build_logic.remove(self.session)
self._buildable_tiles = None
self._transparencified_instances = None
self._related_buildings_selected_tiles = None
self._related_buildings = None
self._highlighted_buildings = None
self._build_logic = None
self.buildings = None
if self.__class__.gui is not None:
self.__class__.gui.hide()
ExtScheduler().rem_all_classinst_calls(self)
SettlementInventoryUpdated.discard(self.update_preview)
PlayerInventoryUpdated.discard(self.update_preview)
super(BuildingTool, self).remove()
def _on_worldobject_deleted(self, message):
# remove references to this object
self._related_buildings.discard(message.sender)
self._transparencified_instances = \
set( i for i in self._transparencified_instances if
i() is not None and int(i().getId()) != message.worldid )
check_building = lambda b: b.worldid != message.worldid
self._highlighted_buildings = set(
tup for tup in self._highlighted_buildings
if check_building(tup[0]))
self._related_buildings = set(
filter(check_building, self._related_buildings))
def on_escape(self):
self._build_logic.on_escape(self.session)
if self.__class__.gui is not None:
self.__class__.gui.hide()
self.session.set_cursor() # will call remove()
def mouseMoved(self, evt):
self.log.debug("BuildingTool mouseMoved")
super(BuildingTool, self).mouseMoved(evt)
point = self.get_world_location(evt)
if self.start_point != point:
self.start_point = point
self._check_update_preview(point)
evt.consume()
def mousePressed(self, evt):
self.log.debug("BuildingTool mousePressed")
if evt.isConsumedByWidgets():
super(BuildingTool, self).mousePressed(evt)
return
if evt.getButton() == fife.MouseEvent.RIGHT:
self.on_escape()
elif evt.getButton() == fife.MouseEvent.LEFT:
pass
else:
super(BuildingTool, self).mousePressed(evt)
return
evt.consume()
def mouseDragged(self, evt):
self.log.debug("BuildingTool mouseDragged")
super(BuildingTool, self).mouseDragged(evt)
point = self.get_world_location(evt)
if self.start_point is not None:
self._check_update_preview(point)
evt.consume()
def mouseReleased(self, evt):
"""Actually build."""
self.log.debug("BuildingTool mouseReleased")
if evt.isConsumedByWidgets():
super(BuildingTool, self).mouseReleased(evt)
elif evt.getButton() == fife.MouseEvent.LEFT:
point = self.get_world_location(evt)
# check if position has changed with this event and update everything
self._check_update_preview(point)
# actually do the build
changed_tiles = self.do_build()
found_buildable = bool(changed_tiles)
if found_buildable:
PlaySound("build").execute(self.session, local=True)
# HACK: users sometimes don't realise that roads can be dragged
# check if 3 roads have been built within 1.2 seconds, and display
# a hint in case
if self._class.class_package == 'path':
import time
now = time.time()
BuildingTool._last_road_built.append(now)
if len(BuildingTool._last_road_built) > 2:
if (now - BuildingTool._last_road_built[-3]) < 1.2:
self.session.ingame_gui.message_widget.add(
point=None, string_id="DRAG_ROADS_HINT")
# don't display hint multiple times at the same build situation
BuildingTool._last_road_built = []
BuildingTool._last_road_built = BuildingTool._last_road_built[
-3:]
# check how to continue: either build again or escape
shift = evt.isShiftPressed(
) or horizons.globals.fife.get_uh_setting('UninterruptedBuilding')
if ((shift and not self._class.id == BUILDINGS.WAREHOUSE)
or not found_buildable
or self._class.class_package == 'path'):
# build once more
self._restore_transparencified_instances()
self.highlight_buildable(changed_tiles)
self.start_point = point
self._build_logic.continue_build()
self.preview_build(point, point)
else:
self.on_escape()
evt.consume()
elif evt.getButton() != fife.MouseEvent.RIGHT:
super(BuildingTool, self).mouseReleased(evt)
def do_build(self):
"""Actually builds the previews
@return a set of tiles where buildings have really been built"""
changed_tiles = set()
# actually do the build and build preparations
for i, building in enumerate(self.buildings):
# remove fife instance, the building will create a new one.
# Check if there is a matching fife instance, could be missing
# in case of trees, which are hidden if not buildable
if building in self.buildings_fife_instances:
fife_instance = self.buildings_fife_instances.pop(building)
self.renderer.removeColored(fife_instance)
self.renderer.removeOutlined(fife_instance)
fife_instance.getLocationRef().getLayer().deleteInstance(
fife_instance)
if building.buildable:
island = self.session.world.get_island(
building.position.origin)
for position in building.position:
tile = island.get_tile(position)
if tile in self._buildable_tiles:
# for some kind of buildabilities, not every coord of the
# building is buildable (e.g. fisher: only coastline is marked
# as buildable). For those tiles, that are not buildable,
# we don't need to do anything.
self._buildable_tiles.remove(tile)
self.renderer.removeColored(tile._instance)
changed_tiles.add(tile)
self._remove_listeners(
) # Remove changelisteners for update_preview
# create the command and execute it
cmd = Build(
building=self._class,
x=building.position.origin.x,
y=building.position.origin.y,
rotation=building.rotation,
island=island,
settlement=self.session.world.get_settlement(
building.position.origin),
ship=self.ship,
tearset=building.tearset,
action_set_id=self.buildings_action_set_ids[i],
)
cmd.execute(self.session)
else:
if len(self.buildings
) == 1: # only give messages for single bulds
# first, buildable reasons such as grounds
# second, resources
if building.problem is not None:
msg = building.problem[1]
self.session.ingame_gui.message_widget.add_custom(
point=building.position.origin, messagetext=msg)
# check whether to issue a missing res notification
# we need the localized resource name here
elif building in self.buildings_missing_resources:
res_name = self.session.db.get_res_name(
self.buildings_missing_resources[building])
self.session.ingame_gui.message_widget.add(
point=building.position.origin,
string_id='NEED_MORE_RES',
message_dict={'resource': res_name})
self.buildings = []
self.buildings_action_set_ids = []
return changed_tiles
def _check_update_preview(self, end_point):
"""Used internally if the end_point changes"""
if self.end_point != end_point:
self.end_point = end_point
self.update_preview()
def _remove_listeners(self):
"""Resets the ChangeListener for update_preview."""
if self.last_change_listener is not None:
if self.last_change_listener.has_change_listener(
self.force_update):
self.last_change_listener.remove_change_listener(
self.force_update)
if self.last_change_listener.has_change_listener(
self.highlight_buildable):
self.last_change_listener.remove_change_listener(
self.highlight_buildable)
self._build_logic.remove_change_listener(self.last_change_listener,
self)
self.last_change_listener = None
def _add_listeners(self, instance):
if self.last_change_listener != instance:
self._remove_listeners()
self.last_change_listener = instance
if self.last_change_listener is not None:
self._build_logic.add_change_listener(
self.last_change_listener, self)
def force_update(self):
self.update_preview(force=True)
def update_preview(self, force=False):
"""Used as callback method"""
if self.start_point is not None:
end_point = self.end_point or self.start_point
self.preview_build(self.start_point, end_point, force=force)
def _rotate(self, degrees):
self.rotation = (self.rotation + degrees) % 360
self.log.debug("BuildingTool: Building rotation now: %s",
self.rotation)
self.update_preview()
self.draw_gui()
def rotate_left(self):
self._rotate(degrees=90)
def rotate_right(self):
self._rotate(degrees=270)
class BuildingTool(NavigationTool, previewhandler.PreviewHandler):
"""Represents a dangling tool after a building was selected from the list.
Builder visualizes if and why a building can not be built under the cursor position.
@param building: selected building type"
@param ship: If building from a ship, restrict to range of ship
The building tool has been under heavy development for several years, it's a collection
of random artifacts that used to have a purpose once.
Terminology:
- Related buildings: Buildings lower in the hiearchy, needed by current building to operate (tree when building lumberjack)
- Inversely related building: lumberjack for tree. Need to show its range to place building, it must be in range.
- Building instances/fife instances: the image of a building, that is dragged around.
Main features:
- Display tab to the right, showing build preview icon and rotation button (draw_gui(), load_gui())
- Show buildable ground (highlight buildable) as well as ranges of inversely related buildings
- This also is called for tiles that need to be recolored, other highlights sometimes draw over
tiles, then this is called again to redo the original coloring.
- Catch mouse events and handle preview on map:
- Get tentative fife instances for buildings, draw them colored according to buildability
- Check for resources missing for build
- Making surrounding of preview transparent, so you see where you are building in a forest
- Highlight related buildings, that are in range
- Draw building range and highlight related buildings that are in range in this position (_color_preview_building)
- Initiate actual build (do_build)
- Clean up coloring, possibly end build mode
- Several buildability logics, strategy pattern via self._build_logic.
Interaction sequence:
- Init, comprises mainly of gui init and highlight_buildable
- Update, which is mainly controlled by preview_build
- Update highlights related to build
- Transparency
- Inversely related buildings in range (highlight_related_buildings)
- Related buildings in range (_color_preview_build)
- Set new instances
- During this time, don't touch anything set by highlight_buildable, or restore it later
- End, possibly do_build and on_escape
"""
#######################################################
#log = logging.getLogger("gui.buildingtool")
#buildable_color = (255, 255, 255)
#not_buildable_color = (255, 0, 0)
#related_building_color = (0, 192, 0)
#related_building_outline = (16, 228, 16, 2)
#nearby_objects_radius = 4
# archive the last roads built, for possible user notification
#_last_road_built = []
#send_hover_instances_update = False
#gui = None # share gui between instances
#######################################################
def __init__(self, session, building, ship=None, build_related=None):
super(BuildingTool, self).__init__(session)
assert not (ship and build_related)
self.renderer = self.session.view.renderer['InstanceRenderer']
self.ship = ship
self._class = building
self.__init_selectable_component()
self.buildings = [] # list of PossibleBuild objs
self.buildings_action_set_ids = [] # list action set ids of list above
self.buildings_fife_instances = {} # fife instances of possible builds
self.buildings_missing_resources = {} # missing resources for possible builds
self.rotation = 45 + random.randint(0, 3)*90
self.start_point, self.end_point = None, None
self.last_change_listener = None
self._transparencified_instances = set() # fife instances modified for transparency
self._buildable_tiles = set() # tiles marked as buildable
self._related_buildings = set() # buildings highlighted as related
self._highlighted_buildings = set() # related buildings highlighted when preview is near it
self._build_logic = None
self._related_buildings_selected_tiles = frozenset() # highlights w.r.t. related buildings
if self.ship is not None:
self._build_logic = ShipBuildingToolLogic(ship)
elif build_related is not None:
self._build_logic = BuildRelatedBuildingToolLogic(self, weakref.ref(build_related) )
else:
self._build_logic = SettlementBuildingToolLogic(self)
self.load_gui()
self.__class__.gui.show()
self.session.ingame_gui.minimap_to_front()
self.session.gui.on_escape = self.on_escape
self.highlight_buildable()
WorldObjectDeleted.subscribe(self._on_worldobject_deleted)
SettlementInventoryUpdated.subscribe(self.update_preview)
PlayerInventoryUpdated.subscribe(self.update_preview)
def __init_selectable_component(self):
self.selectable_comp = SelectableBuildingComponent
try:
template = self._class.get_component_template(SelectableComponent)
self.selectable_comp = SelectableComponent.get_instance(template)
except KeyError:
pass
def remove(self):
self.session.ingame_gui.resource_overview.close_construction_mode()
WorldObjectDeleted.unsubscribe(self._on_worldobject_deleted)
self._remove_listeners()
self._remove_building_instances()
self._remove_coloring()
self._build_logic.remove(self.session)
self._buildable_tiles = None
self._transparencified_instances = None
self._related_buildings_selected_tiles = None
self._related_buildings = None
self._highlighted_buildings = None
self._build_logic = None
self.buildings = None
if self.__class__.gui is not None:
self.__class__.gui.hide()
ExtScheduler().rem_all_classinst_calls(self)
SettlementInventoryUpdated.discard(self.update_preview)
PlayerInventoryUpdated.discard(self.update_preview)
super(BuildingTool, self).remove()
def _on_worldobject_deleted(self, message):
# remove references to this object
self._related_buildings.discard(message.sender)
self._transparencified_instances = \
set( i for i in self._transparencified_instances if
i() is not None and int(i().getId()) != message.worldid )
check_building = lambda b : b.worldid != message.worldid
self._highlighted_buildings = set( tup for tup in self._highlighted_buildings if check_building(tup[0]) )
self._related_buildings = set( filter(check_building, self._related_buildings) )
def on_escape(self):
self._build_logic.on_escape(self.session)
if self.__class__.gui is not None:
self.__class__.gui.hide()
self.session.set_cursor() # will call remove()
def mouseMoved(self, evt):
self.log.debug("BuildingTool mouseMoved")
super(BuildingTool, self).mouseMoved(evt)
point = self.get_world_location(evt)
if self.start_point != point:
self.start_point = point
self._check_update_preview(point)
evt.consume()
def mousePressed(self, evt):
self.log.debug("BuildingTool mousePressed")
if evt.isConsumedByWidgets():
super(BuildingTool, self).mousePressed(evt)
return
if evt.getButton() == fife.MouseEvent.RIGHT:
self.on_escape()
elif evt.getButton() == fife.MouseEvent.LEFT:
pass
else:
super(BuildingTool, self).mousePressed(evt)
return
evt.consume()
def mouseDragged(self, evt):
self.log.debug("BuildingTool mouseDragged")
super(BuildingTool, self).mouseDragged(evt)
point = self.get_world_location(evt)
if self.start_point is not None:
self._check_update_preview(point)
evt.consume()
def mouseReleased(self, evt):
"""Actually build."""
self.log.debug("BuildingTool mouseReleased")
if evt.isConsumedByWidgets():
super(BuildingTool, self).mouseReleased(evt)
elif evt.getButton() == fife.MouseEvent.LEFT:
point = self.get_world_location(evt)
# check if position has changed with this event and update everything
self._check_update_preview(point)
# actually do the build
changed_tiles = self.do_build()
found_buildable = bool(changed_tiles)
if found_buildable:
PlaySound("build").execute(self.session, local=True)
# HACK: users sometimes don't realise that roads can be dragged
# check if 3 roads have been built within 1.2 seconds, and display
# a hint in case
if self._class.class_package == 'path':
import time
now = time.time()
BuildingTool._last_road_built.append(now)
if len(BuildingTool._last_road_built) > 2:
if (now - BuildingTool._last_road_built[-3]) < 1.2:
self.session.ingame_gui.message_widget.add(point=None, string_id="DRAG_ROADS_HINT")
# don't display hint multiple times at the same build situation
BuildingTool._last_road_built = []
BuildingTool._last_road_built = BuildingTool._last_road_built[-3:]
# check how to continue: either build again or escape
shift = evt.isShiftPressed() or horizons.globals.fife.get_uh_setting('UninterruptedBuilding')
if ((shift and not self._class.id == BUILDINGS.WAREHOUSE)
or not found_buildable
or self._class.class_package == 'path'):
# build once more
self._restore_transparencified_instances()
self.highlight_buildable(changed_tiles)
self.start_point = point
self._build_logic.continue_build()
self.preview_build(point, point)
else:
self.on_escape()
evt.consume()
elif evt.getButton() != fife.MouseEvent.RIGHT:
super(BuildingTool, self).mouseReleased(evt)
def do_build(self):
"""Actually builds the previews
@return a set of tiles where buildings have really been built"""
changed_tiles = set()
# actually do the build and build preparations
for i, building in enumerate(self.buildings):
# remove fife instance, the building will create a new one.
# Check if there is a matching fife instance, could be missing
# in case of trees, which are hidden if not buildable
if building in self.buildings_fife_instances:
fife_instance = self.buildings_fife_instances.pop(building)
self.renderer.removeColored(fife_instance)
self.renderer.removeOutlined(fife_instance)
fife_instance.getLocationRef().getLayer().deleteInstance(fife_instance)
if building.buildable:
island = self.session.world.get_island(building.position.origin)
for position in building.position:
tile = island.get_tile(position)
if tile in self._buildable_tiles:
# for some kind of buildabilities, not every coord of the
# building is buildable (e.g. fisher: only coastline is marked
# as buildable). For those tiles, that are not buildable,
# we don't need to do anything.
self._buildable_tiles.remove(tile)
self.renderer.removeColored(tile._instance)
changed_tiles.add(tile)
self._remove_listeners() # Remove changelisteners for update_preview
# create the command and execute it
cmd = Build(building=self._class,
x=building.position.origin.x,
y=building.position.origin.y,
rotation=building.rotation,
island=island,
settlement=self.session.world.get_settlement(building.position.origin),
ship=self.ship,
tearset=building.tearset,
action_set_id=self.buildings_action_set_ids[i],
)
cmd.execute(self.session)
else:
if len(self.buildings) == 1: # only give messages for single bulds
# first, buildable reasons such as grounds
# second, resources
if building.problem is not None:
msg = building.problem[1]
self.session.ingame_gui.message_widget.add_custom(
point=building.position.origin, messagetext=msg)
# check whether to issue a missing res notification
# we need the localized resource name here
elif building in self.buildings_missing_resources:
res_name = self.session.db.get_res_name( self.buildings_missing_resources[building] )
self.session.ingame_gui.message_widget.add(
point=building.position.origin,
string_id='NEED_MORE_RES', message_dict={'resource' : res_name})
self.buildings = []
self.buildings_action_set_ids = []
return changed_tiles
def _check_update_preview(self, end_point):
"""Used internally if the end_point changes"""
if self.end_point != end_point:
self.end_point = end_point
self.update_preview()
def _remove_listeners(self):
"""Resets the ChangeListener for update_preview."""
if self.last_change_listener is not None:
if self.last_change_listener.has_change_listener(self.force_update):
self.last_change_listener.remove_change_listener(self.force_update)
if self.last_change_listener.has_change_listener(self.highlight_buildable):
self.last_change_listener.remove_change_listener(self.highlight_buildable)
self._build_logic.remove_change_listener(self.last_change_listener, self)
self.last_change_listener = None
def _add_listeners(self, instance):
if self.last_change_listener != instance:
self._remove_listeners()
self.last_change_listener = instance
if self.last_change_listener is not None:
self._build_logic.add_change_listener(self.last_change_listener, self)
def force_update(self):
self.update_preview(force=True)
def update_preview(self, force=False):
"""Used as callback method"""
if self.start_point is not None:
end_point = self.end_point or self.start_point
self.preview_build(self.start_point, end_point, force=force)
def _rotate(self, degrees):
self.rotation = (self.rotation + degrees) % 360
self.log.debug("BuildingTool: Building rotation now: %s", self.rotation)
self.update_preview()
self.draw_gui()
def rotate_left(self):
self._rotate(degrees=90)
def rotate_right(self):
self._rotate(degrees=270)