initial commit: canny cat basic movement, bouncing, some gridmap tiles for levels

addons/godot_state_charts/utilities/editor_sidebar.gd

@@ -0,0 +1,99 @@
+@tool
+extends Control
+
+## Emitted when the user requests to toggle the sidebar.
+signal sidebar_toggle_requested()
+
+## The currently selected node or null
+var _selected_node:Node
+## The editor interface
+var _editor_interface:EditorInterface
+## The undo/redo facility
+var _undo_redo:EditorUndoRedoManager
+
+@onready var _add_section:Control = %AddSection
+@onready var _no_options_label:Control = %NoOptionsLabel
+@onready var _add_node_name_line_edit:LineEdit = %AddNodeNameLineEdit
+@onready var _add_grid_container:Control = %AddGridContainer
+
+
+func setup(editor_interface:EditorInterface, undo_redo:EditorUndoRedoManager):
+	_editor_interface = editor_interface
+	_undo_redo = undo_redo
+
+
+func change_selected_node(node):
+	_selected_node = node
+	_repaint()
+
+func _repaint():
+	# we can add states to all composite states and to the 
+	# root if the root has no child state yet.
+	var can_add_states = \
+		( _selected_node is StateChart and _selected_node.get_child_count() == 0 ) \
+		or _selected_node is ParallelState \
+		or _selected_node is CompoundState
+		
+	# we can add transitions to all states
+	var can_add_transitions = \
+		_selected_node is StateChartState
+		
+	_add_section.visible = can_add_states or can_add_transitions
+	_no_options_label.visible = not (can_add_states or can_add_transitions)
+	
+	
+	for btn in _add_grid_container.get_children():
+		if btn.is_in_group("statebutton"):
+			btn.visible = can_add_states
+		else:
+			btn.visible = can_add_transitions
+
+
+func _create_node(type, name:StringName):
+	
+	var final_name = _add_node_name_line_edit.text.strip_edges()
+	if final_name.length() == 0:
+		final_name = name
+	
+	var new_node = type.new()
+	_undo_redo.create_action("Add " + final_name)
+	_undo_redo.add_do_method(_selected_node, "add_child", new_node)
+	_undo_redo.add_undo_method(_selected_node, "remove_child", new_node)
+	_undo_redo.add_do_reference(new_node)
+	_undo_redo.add_do_method(new_node, "set_owner", _selected_node.get_tree().edited_scene_root)
+	_undo_redo.add_do_property(new_node, "name", final_name)
+	_undo_redo.commit_action()
+		
+	
+	if Input.is_key_pressed(KEY_SHIFT):
+		_editor_interface.get_selection().clear()
+		_editor_interface.get_selection().add_node(new_node)
+
+	_add_node_name_line_edit.grab_focus()
+	_editor_interface.edit_node(new_node)
+	_repaint()
+		
+
+
+func _on_atomic_state_pressed():
+	_create_node(AtomicState, "AtomicState")
+
+
+func _on_compound_state_pressed():
+	_create_node(CompoundState, "CompoundState")
+
+
+func _on_parallel_state_pressed():
+	_create_node(ParallelState, "ParallelState")
+
+
+func _on_history_state_pressed():
+	_create_node(HistoryState, "HistoryState")
+
+
+func _on_transition_pressed():
+	_create_node(Transition, "Transition")
+
+
+func _on_toggle_sidebar_button_pressed():
+	sidebar_toggle_requested.emit()