Godot Engine：屏幕振动效果的实现

extends Tween

class_name CameraShaker

export var camera_path : NodePath

var camera :Camera = null

func _ready():
	camera = get_node_or_null(camera_path)

func disturb_offset(strength : float):
	camera.h_offset = rand_range(-strength,strength)
	camera.v_offset = rand_range(-strength,strength)


func shake(strength : float,duration : float = 1.0):
	if  camera != null:
		interpolate_method(self,"disturb_offset",strength,0,duration,Tween.TRANS_SINE,Tween.EASE_OUT,0)
		start()