generated from krampus/template-godot4
49 lines
1.2 KiB
GDScript3
49 lines
1.2 KiB
GDScript3
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@tool
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@icon("../../icons/category_leaf.svg")
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class_name Leaf extends BeehaveNode
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## Base class for all leaf nodes of the tree.
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const EXPRESSION_PLACEHOLDER: String = "Insert an expression..."
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func _get_configuration_warnings() -> PackedStringArray:
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var warnings: PackedStringArray = []
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var children: Array[Node] = get_children()
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if children.any(func(x): return x is BeehaveNode):
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warnings.append("Leaf nodes should not have any child nodes. They won't be ticked.")
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for source in _get_expression_sources():
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var error_text: String = _parse_expression(source).get_error_text()
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if not error_text.is_empty():
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warnings.append("Expression `%s` is invalid! Error text: `%s`" % [source, error_text])
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return warnings
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func _parse_expression(source: String) -> Expression:
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var result: Expression = Expression.new()
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var error: int = result.parse(source)
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if not Engine.is_editor_hint() and error != OK:
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push_error(
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(
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"[Leaf] Couldn't parse expression with source: `%s` Error text: `%s`"
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% [source, result.get_error_text()]
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)
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)
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return result
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func _get_expression_sources() -> Array[String]: # virtual
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return []
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func get_class_name() -> Array[StringName]:
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var classes := super()
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classes.push_back(&"Leaf")
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return classes
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