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hella-farm/scenes/game/cursor.gd

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GDScript3
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extends Area2D
class_name Cursor
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## A [CharacterBody2D] syncing its position with the mouse on each physics timestep.
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signal dragged(node: Draggable)
signal dropped(node: Draggable)
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@onready var game: MainGame = MainGame.get_via_group(self)
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@onready var gold_display: GoldDisplay = %"GoldDisplay"
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@onready var cheat_gold_spawner: Spawner = %"CheatGoldSpawner"
var dragging: Draggable = null
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static func get_via_group(node: Node) -> Cursor:
var result = node.get_tree().get_nodes_in_group("cursor")
if result.is_empty():
return null
return result[0]
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func find_closest_target() -> Draggable:
var areas = get_overlapping_areas()
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var min_distance: float = INF
var to_drag: Node = null
for area in areas:
if not area is Draggable:
continue
var distance = position.distance_to(area.position)
if distance < min_distance:
min_distance = distance
to_drag = area
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return to_drag
func drag():
var target = find_closest_target()
if target and not dragging:
dragging = target
target.drag(self)
dragged.emit(target)
func drop():
if dragging:
var target = dragging
dragging = null
if is_instance_valid(target):
target.drop()
dropped.emit(target)
else:
dropped.emit(null)
func log_dragging() -> void:
Log.p(self, "Dragging: %s" % dragging)
func _input(event: InputEvent) -> void:
if event is InputEventMouseButton:
if event.button_index == MOUSE_BUTTON_LEFT:
if event.pressed:
drag()
else:
drop()
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func _process(_delta: float) -> void:
# Determine mouse cursor shape
if dragging:
Input.set_default_cursor_shape(Input.CURSOR_DRAG)
elif has_overlapping_areas():
Input.set_default_cursor_shape(Input.CURSOR_POINTING_HAND)
else:
Input.set_default_cursor_shape(Input.CURSOR_ARROW)
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func _physics_process(_delta: float) -> void:
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position += (game.camera.get_global_mouse_position() - global_position)
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if Input.is_action_pressed(&"cheat_gold"):
cheat_gold_spawner.spawn()