40 lines
1.4 KiB
GDScript
40 lines
1.4 KiB
GDScript
# Class handles the camera zoom and movement in the game
|
|
class_name CameraZoom2D
|
|
extends Camera2D
|
|
|
|
var _zoom_level : float = 1.0 : set = _set_zoom_level
|
|
var is_dragging_camera = false
|
|
var tween
|
|
|
|
func _set_zoom_level(value: float) -> void:
|
|
_zoom_level = clamp(value, Globals.CAMERA_MIN_ZOOM_LEVEL, Globals.CAMERA_MAX_ZOOM_LEVEL)
|
|
|
|
#interpolate frames between zoom levels to make zooming look smoother
|
|
tween = get_tree().create_tween()
|
|
tween.tween_property(
|
|
self,
|
|
"zoom",
|
|
Vector2(_zoom_level, _zoom_level),
|
|
Globals.CAMERA_ZOOM_DURATION
|
|
)
|
|
|
|
func _unhandled_input(event):
|
|
# camera zooming
|
|
if event.is_action_pressed("camera_zoom_in"):
|
|
_set_zoom_level(_zoom_level - Globals.CAMERA_ZOOM_FACTOR)
|
|
elif event.is_action_pressed("camera_zoom_out"):
|
|
_set_zoom_level(_zoom_level + Globals.CAMERA_ZOOM_DURATION)
|
|
|
|
# camera dragging
|
|
if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT:
|
|
if !is_dragging_camera and event.pressed:
|
|
is_dragging_camera = true
|
|
if is_dragging_camera and !event.pressed:
|
|
is_dragging_camera = false
|
|
|
|
if event is InputEventMouseMotion and is_dragging_camera:
|
|
if self.position != event.position:
|
|
tween = get_tree().create_tween()
|
|
tween.tween_property(self, "property", Vector2(self.position, event.position), Globals.CAMERA_ZOOM_DURATION)
|
|
else:
|
|
self.position = event.position * Globals.CAMERA_DRAG_MULTI
|