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extends Camera2D
var is_in_drag_mode = false
var drag_anchor = Vector2.ZERO
@export var speed = 5
@export_group("Zoom", "zoom")
@export var zoom_min: float = 0.5
@export var zoom_max: float = 3
@export var zoom_step: float = 0.01
func _input(event):
if event.is_action("camera_zoom_out"):
var min_zoom_min = limit_right / (get_viewport_rect().size.x / zoom.x)
if min_zoom_min >= 1.0:
var new_zoom = max(zoom.x - zoom_step, zoom_min)
zoom = Vector2(new_zoom, new_zoom)
if event.is_action("camera_zoom_in"):
var new_zoom = min(zoom.x + zoom_step, zoom_max)
zoom = Vector2(new_zoom, new_zoom)
if event.is_action_pressed("camera_drag"):
is_in_drag_mode = true
drag_anchor = get_global_mouse_position()
elif event.is_action_released("camera_drag"):
is_in_drag_mode = false
func _process(_delta):
if is_in_drag_mode:
set_new_position(global_position + drag_anchor - get_global_mouse_position())
var direction_h = Input.get_axis("ui_left", "ui_right")
var direction_v = Input.get_axis("ui_up", "ui_down")
if direction_h != 0 or direction_v != 0:
set_new_position(global_position + Vector2(direction_h * speed, direction_v * speed))
func set_new_position(new_position: Vector2):
new_position.x = clamp(
new_position.x,
limit_left,
limit_right - (get_viewport_rect().size.x / zoom.x)
)
new_position.y = clamp(
new_position.y,
limit_top,
limit_bottom - (get_viewport_rect().size.y / zoom.y)
)
global_position = new_position
func get_rect():
var viewport = get_viewport_rect()
return Rect2(
global_position,
viewport.size * Vector2(1 / zoom.x, 1 / zoom.y)
)
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