camera shake 优化

scene/ground/camera/camera_focus_marker.gd

@@ -14,20 +14,47 @@ var _tweeked_position := Vector2.ZERO
 
 var zoom_tween: Tween
 var shake_ignore_boundary := false
-
+# default
+var default_camera_rect := Rect2i(0, -158, 564, 316)
 
 func _ready() -> void:
 	reset_speed()
 	if not focusing_node:
 		push_error("Focusing node not found")
 
+
+# 默认重置 limits
+func apply_limits(rect := default_camera_rect, replace_default := true) -> void:
+	if replace_default:
+		default_camera_rect = rect
+	var start = rect.position
+	var end = rect.end
+	limit_left = start.x
+	limit_right = end.x
+	limit_top = start.y
+	limit_bottom = end.y
+
+
 func reset_speed() -> void:
 	speed = 2.0
 
+
 func shake_camera(strength := 6.0, recovery_speed := 2.0, ignore_boundary := true):
 	shake_strength = strength
 	shake_recovery_speed = recovery_speed
 	shake_ignore_boundary = ignore_boundary
+	if shake_ignore_boundary:
+		_update_limit_by_strength()
+
+
+func _update_limit_by_strength() -> void:
+	var int_s := ceili(shake_strength)
+	var start = default_camera_rect.position
+	var end = default_camera_rect.end
+	limit_left = start.x - int_s
+	limit_right = end.x + int_s
+	limit_top = start.y - int_s
+	limit_bottom = end.y + int_s
 
 
 func reset_position_immediately():
@@ -69,7 +96,8 @@ func _physics_process(delta: float) -> void:
 	global_position = progressing_position
 
 	# handle shake
-	if shake_strength > 0.0:
+	if shake_strength > 0.01: #epsilon
+		_update_limit_by_strength()
 		# 让 shake_strength 逐帧衰减
 		shake_recovery_speed = max(0.1, shake_recovery_speed)
 		shake_strength = lerpf(shake_strength, 0.0, shake_recovery_speed * delta)
@@ -87,6 +115,12 @@ func _physics_process(delta: float) -> void:
 		global_position += shaked_offset
 		if not shake_ignore_boundary:
 			global_position = _clamp_boundary(global_position)
+	elif shake_ignore_boundary:
+		# reset limits
+		shake_ignore_boundary = false
+		shake_strength = 0.0
+		_update_limit_by_strength()
+
 
 	# var taget_zoom = lerpf(zoom.x, zoom_ratio, speed * delta)
 	# zoom = Vector2(taget_zoom, taget_zoom)

scene/ground/ground.gd

@@ -194,13 +194,10 @@ func _calculate_player_rect() -> Rect2:
 	return player_rect
 
 
-func _apply_camera_limits(camera_rect: Rect2) -> void:
+func _apply_camera_limits(camera_rect: Rect2i) -> void:
 	var camera_marker = get_camera()
 	if camera_marker:
-		camera_marker.limit_left = camera_rect.position.x
-		camera_marker.limit_right = camera_rect.position.x + camera_rect.size.x
-		camera_marker.limit_top = camera_rect.position.y
-		camera_marker.limit_bottom = camera_rect.position.y + camera_rect.size.y
+		camera_marker.apply_limits(camera_rect)
 
 
 func _apply_player_boundary(player_rect: Rect2) -> void:

scene/ground/scene/c01/s11_黄包车演出.gd

@@ -31,7 +31,7 @@ func _on_ground_ready() -> void:
 	camera.limit_bottom = 158
 	await SceneManager.ground_start
 	# 相机抖动
-	camera.shake_camera(6.0, 1.5)
+	camera.shake_camera(6.0, 2.5)
 	# 不显示玩家，锁定玩家移动
 	SceneManager.lock_player()
 	main_character = $"../DeployLayer/车夫与吕萍"