pir-serious-game-ethics/addons/transit/Transit.gd

44 lines
1.3 KiB
GDScript

extends Control
signal scene_changed
const DEFAULT_DURATION := 0.2
const DEFAULT_DELAY := 0.0
onready var _animator := $AnimationPlayer
onready var _curtain := $CanvasLayer/ColorRect
func set_color(color: Color):
color.a = _curtain.color.a
_curtain.color = color
func change_scene(path: String, duration: float = DEFAULT_DURATION, delay: float = DEFAULT_DELAY):
if duration <= 0.0:
push_error("TRANSIT ERROR: change_scene duration must be > 0. Defaulting to %s" % DEFAULT_DURATION)
duration = DEFAULT_DURATION
if delay < 0.0:
push_error("TRANSIT ERROR: change_scene delay must be >= 0. Defaulting to %s" % DEFAULT_DELAY)
delay = DEFAULT_DELAY
# disable mouse interaction while fading out
_curtain.mouse_filter = MOUSE_FILTER_STOP
if delay > 0:
yield(get_tree().create_timer(delay), "timeout")
_animator.playback_speed = 1.0 / duration
_animator.play("fade")
yield(_animator, "animation_finished")
var err := get_tree().change_scene(path)
if err:
push_error("TRANSIT ERROR: Failed to change scene to %s: %s" % [path, err])
# re-enable mouse interaction before fading back in
_curtain.mouse_filter = MOUSE_FILTER_IGNORE
_animator.play_backwards("fade")
yield(_animator, "animation_finished")
emit_signal("scene_changed")