spaceship/WorldMap.gd

93 lines
2.6 KiB
GDScript3
Raw Normal View History

extends Control
@export var min_zoom: float = 0.3
@export var max_zoom: float = 3.0
@onready var content: Node2D = $MapContent
@onready var open_button: IconButton = get_node("../MapButton")
@onready var recenter_button: IconButton = $RecenterButton
@onready var close_button: IconButton = $CloseButton
@onready var fleet: Node2D = get_node("../../Fleet")
var touches: Dictionary = {}
var pinch_active: bool = false
var pinch_start_distance: float = 0.0
var pinch_start_zoom: float = 1.0
func _ready() -> void:
open_button.pressed.connect(open_map)
recenter_button.pressed.connect(recenter_view)
close_button.pressed.connect(close_map)
func open_map() -> void:
visible = true
open_button.visible = false
recenter_view()
func close_map() -> void:
visible = false
open_button.visible = true
touches.clear()
pinch_active = false
func recenter_view() -> void:
var fleet_local: Vector2 = fleet.get_centroid() * content.WORLD_TO_LOCAL
var viewport_center: Vector2 = get_viewport_rect().size / 2.0
content.position = viewport_center - fleet_local * content.scale.x
func _input(event: InputEvent) -> void:
if not visible:
return
if event is InputEventScreenTouch:
_handle_touch(event)
get_viewport().set_input_as_handled()
elif event is InputEventScreenDrag:
_handle_drag(event)
get_viewport().set_input_as_handled()
elif event is InputEventMagnifyGesture:
_handle_magnify(event)
get_viewport().set_input_as_handled()
func _handle_touch(event: InputEventScreenTouch) -> void:
if event.pressed:
touches[event.index] = event.position
if touches.size() == 2:
pinch_active = true
var positions: Array = touches.values()
pinch_start_distance = positions[0].distance_to(positions[1])
pinch_start_zoom = content.scale.x
else:
touches.erase(event.index)
if touches.size() < 2:
pinch_active = false
func _handle_drag(event: InputEventScreenDrag) -> void:
if not touches.has(event.index):
return
var previous_pos: Vector2 = touches[event.index]
touches[event.index] = event.position
if pinch_active and touches.size() == 2 and pinch_start_distance > 0.0:
var positions: Array = touches.values()
var current_distance: float = positions[0].distance_to(positions[1])
var new_zoom: float = pinch_start_zoom * (current_distance / max(pinch_start_distance, 1.0))
_set_zoom(new_zoom)
elif touches.size() == 1:
content.position += event.position - previous_pos
func _handle_magnify(event: InputEventMagnifyGesture) -> void:
_set_zoom(content.scale.x * event.factor)
func _set_zoom(z: float) -> void:
var clamped: float = clamp(z, min_zoom, max_zoom)
content.scale = Vector2(clamped, clamped)