60 lines
1.5 KiB
GDScript
60 lines
1.5 KiB
GDScript
@tool
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class_name PickupItem
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extends Node3D
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signal item_picked_up(node_path:NodePath)
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@onready var world_item_node = %WorldItemNode
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@export var item:ItemResource:
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get:
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return item
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set(value):
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if value != item:
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item = value
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if world_item_node == null:
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return
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for child in world_item_node.get_children():
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child.get_parent().remove_child(child)
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child.queue_free()
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world_item_node.add_child(item.scene.instantiate())
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var gravity = ProjectSettings.get_setting("physics/3d/default_gravity")
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var world_item_initial_y_position: float = 0
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var world_item_initial_y_velocity: float = 0
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var world_item_y_velocity: float = 0.
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func _ready():
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if item == null:
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push_error ("Error: invalid PickupItem at %s" % str(global_position))
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return
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var item_scene = item.scene.instantiate()
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world_item_node.add_child(item_scene)
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world_item_node.position.y = world_item_initial_y_position
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world_item_y_velocity = world_item_initial_y_velocity
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func _on_area_3d_body_entered(body):
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if body.has_method("on_item_picked_up"):
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body.on_item_picked_up(item)
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item_picked_up.emit(get_path())
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queue_free()
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func _physics_process(delta: float) -> void:
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if world_item_node.position.y > 0:
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world_item_y_velocity -= gravity * delta
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world_item_node.position.y += world_item_y_velocity * delta
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if world_item_node.position.y < 0:
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world_item_node.position.y = 0
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if world_item_y_velocity < -1:
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world_item_node.position.y = 0.01
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world_item_y_velocity *= -0.4
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else:
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world_item_y_velocity = 0
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