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57 lines
2.5 KiB
GDScript
57 lines
2.5 KiB
GDScript
################################################################################
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# Provides access to a global accessible singleton
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#
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# This is a workarount to the existing auto load singleton because of some bugs
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# around plugin handling
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################################################################################
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class_name GdUnitSingleton
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extends Object
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const GdUnitTools := preload("res://addons/gdUnit4/src/core/GdUnitTools.gd")
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const MEATA_KEY := "GdUnitSingletons"
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static func instance(name: String, clazz: Callable) -> Variant:
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if Engine.has_meta(name):
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return Engine.get_meta(name)
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var singleton: Variant = clazz.call()
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if is_instance_of(singleton, RefCounted):
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@warning_ignore("unsafe_cast")
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push_error("Invalid singleton implementation detected for '%s' is `%s`!" % [name, (singleton as RefCounted).get_class()])
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return
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Engine.set_meta(name, singleton)
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GdUnitTools.prints_verbose("Register singleton '%s:%s'" % [name, singleton])
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var singletons: PackedStringArray = Engine.get_meta(MEATA_KEY, PackedStringArray())
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@warning_ignore("return_value_discarded")
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singletons.append(name)
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Engine.set_meta(MEATA_KEY, singletons)
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return singleton
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static func unregister(p_singleton: String, use_call_deferred: bool = false) -> void:
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var singletons: PackedStringArray = Engine.get_meta(MEATA_KEY, PackedStringArray())
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if singletons.has(p_singleton):
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GdUnitTools.prints_verbose("\n Unregister singleton '%s'" % p_singleton);
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var index := singletons.find(p_singleton)
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singletons.remove_at(index)
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var instance_: Object = Engine.get_meta(p_singleton)
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GdUnitTools.prints_verbose(" Free singleton instance '%s:%s'" % [p_singleton, instance_])
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@warning_ignore("return_value_discarded")
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GdUnitTools.free_instance(instance_, use_call_deferred)
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Engine.remove_meta(p_singleton)
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GdUnitTools.prints_verbose(" Successfully freed '%s'" % p_singleton)
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Engine.set_meta(MEATA_KEY, singletons)
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static func dispose(use_call_deferred: bool = false) -> void:
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# use a copy because unregister is modify the singletons array
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var singletons: PackedStringArray = Engine.get_meta(MEATA_KEY, PackedStringArray())
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GdUnitTools.prints_verbose("----------------------------------------------------------------")
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GdUnitTools.prints_verbose("Cleanup singletons %s" % singletons)
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for singleton in PackedStringArray(singletons):
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unregister(singleton, use_call_deferred)
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Engine.remove_meta(MEATA_KEY)
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GdUnitTools.prints_verbose("----------------------------------------------------------------")
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