mirror of
https://github.com/tonytins/citylimits.git
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c980445340
- Upgraded to Godot 4 - Just remembered the basic principles are based on a tile editor, and dramatically simplified from there. Derp. - New state machine and license display add-ons. - Re-licensed under the GPL because Micropolis' assets aren't under a separate one.
98 lines
2.9 KiB
GDScript
98 lines
2.9 KiB
GDScript
extends Label
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## Mode of description box rendering.
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enum DisplayModes {
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NONE, ## Description box completely hidden.
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ACTIVE, ## Show descriptions of all active states.
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SELECTION, ## Show description of last selected state (also includes manual switches).
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}
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@export
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## [StateMachineDebugger] to reference.
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var tree : StateMachineDebugger:
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set(value):
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tree = value
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if show_descriptions == DisplayModes.SELECTION and \
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not tree.item_selected.is_connected(_on_tree_item_selected):
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tree.item_selected.connect(_on_tree_item_selected)
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@export
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## Show a description of a state.
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## Looks for a string metadata value by the name of [code]description[/code] on each state.
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var show_descriptions := DisplayModes.NONE:
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set(value):
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show_descriptions = value
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match show_descriptions:
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DisplayModes.NONE:
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visible = false
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DisplayModes.ACTIVE:
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visible = true
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if not is_instance_valid(tree):
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return
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if tree.item_selected.is_connected(_on_tree_item_selected):
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tree.item_selected.disconnect(_on_tree_item_selected)
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DisplayModes.SELECTION:
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visible = true
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if not is_instance_valid(tree):
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return
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if not tree.item_selected.is_connected(_on_tree_item_selected):
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tree.item_selected.connect(_on_tree_item_selected)
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var _active_states : Array[State] = []
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# Called when the node enters the scene tree for the first time.
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func _ready() -> void:
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visible = show_descriptions != DisplayModes.NONE
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connect_signals()
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func connect_signals(state := tree.state_machine_root) -> void:
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if not state.has_meta(&"tree_item"):
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return
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for signal_name in tree.signal_connections:
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if state.has_signal(signal_name) and not \
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state.is_connected(signal_name, _on_state_signal):
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state.connect(signal_name, _on_state_signal.bind(signal_name, state))
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for child in(state.get_children() as Array[State]):
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connect_signals(child)
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func disconnect_signals(state := tree.state_machine_root) -> void:
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for signal_name in tree.signal_connections:
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if state.has_signal(signal_name) and \
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state.is_connected(signal_name, _on_state_signal):
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state.disconnect(signal_name, _on_state_signal)
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for child in (state.get_children() as Array[State]):
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disconnect_signals(child)
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func _set_description_from_active_states() -> void:
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text = ""
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for state in _active_states:
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text += ("" if state.is_root() else "\n\n") + \
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state.name as String + \
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": " + \
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state.get_meta(&"description", "") as String
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func _on_tree_item_selected() -> void:
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text = tree.get_selected() \
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.get_metadata(0).get_meta(&"description", "")
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func _on_state_signal(signal_name: StringName, state: State) -> void:
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match signal_name:
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&"entered":
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if show_descriptions == DisplayModes.ACTIVE:
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_active_states.push_back(state)
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_set_description_from_active_states()
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&"exited":
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if show_descriptions == DisplayModes.ACTIVE:
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_active_states.pop_back()
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_set_description_from_active_states()
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