Steven Wroblewski
76 lines
2.2 KiB
GDScript
76 lines
2.2 KiB
GDScript
## HoldableItem — Node2D that can be held in a Character's HandLeft or HandRight slot.
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## Attach DragDropComponent as a child. On drag_released scans "characters" group for
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## the nearest free hand slot within HAND_SLOT_RADIUS.
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class_name HoldableItem extends Node2D
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signal item_picked_up(item: HoldableItem)
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signal item_placed(item: HoldableItem)
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const HAND_SLOT_RADIUS: float = 60.0
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@export var item_id: String = ""
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var home_chest: Node2D = null
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func _ready() -> void:
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var drag: DragDropComponent = get_node_or_null("DragDropComponent") as DragDropComponent
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if drag != null:
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drag.drag_picked_up.connect(_on_drag_picked_up)
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drag.drag_released.connect(_on_drag_released)
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func _on_drag_picked_up(_pos: Vector2) -> void:
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if is_in_hand_slot():
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_detach_from_hand_slot()
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item_picked_up.emit(self)
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func _on_drag_released(_pos: Vector2) -> void:
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var result: Array = _find_nearest_free_hand_slot()
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if not result.is_empty():
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var character: Character = result[0] as Character
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var hand: String = result[1] as String
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character.attach_item(hand, self)
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item_placed.emit(self)
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func is_in_hand_slot() -> bool:
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var p: Node = get_parent()
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if p == null:
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return false
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return p.name == "HandLeft" or p.name == "HandRight"
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func _detach_from_hand_slot() -> void:
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var hand_slot: Node = get_parent()
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var character: Character = hand_slot.get_parent() as Character
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if character == null:
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return
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var hand: String = "left" if hand_slot.name == "HandLeft" else "right"
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character.detach_item(hand)
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func _find_nearest_free_hand_slot() -> Array:
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var best_dist: float = HAND_SLOT_RADIUS
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var best_character: Character = null
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var best_hand: String = ""
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for node: Node in get_tree().get_nodes_in_group("characters"):
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var character: Character = node as Character
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if character == null:
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continue
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for hand: String in ["left", "right"]:
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if not character.is_hand_free(hand):
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continue
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var slot: Node2D = character.get_node_or_null("Hand" + hand.capitalize()) as Node2D
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if slot == null:
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continue
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var dist: float = global_position.distance_to(slot.global_position)
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if dist < best_dist:
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best_dist = dist
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best_character = character
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best_hand = hand
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if best_character == null:
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return []
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return [best_character, best_hand]
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