camera follower tool designing....

_camera/PlateformerCamera.tscn

@@ -14,9 +14,7 @@ metadata/_custom_type_script = "uid://py4h5jxlncro"
 
 [node name="ReedCameraShakeController" type="Node" parent="CameraPointer"]
 script = ExtResource("2_rbequ")
-affect_position = null
 affect_offset = true
-affect_zoom = null
 metadata/_custom_type_script = "uid://dwr1s51svvank"
 
 [node name="ReedCameraAnchorController" type="Node" parent="CameraPointer"]

addons/reedcamera/scripts/CameraPointer.gd

@@ -164,5 +164,24 @@ func _emit_config_warning() -> void:
 
 	_warned = true
 
+## =========================
+## Public API
+## =========================
+##获取相机
 func get_camera() -> Camera2D:
 	return _camera
+
+##获取特定工具
+func get_tool(tool_class: Script) -> Node:
+	for c in get_children():
+		if c.get_script() == tool_class:
+			return c
+	return null
+
+##获取所有工具
+func get_tools() -> Array[CameraToolBasic]:
+	var out: Array[CameraToolBasic] = []
+	for c in get_children():
+		if c is CameraToolBasic:
+			out.append(c)
+	return out

addons/reedcamera/scripts/camera_tools/CameraFollowController.gd

@@ -0,0 +1,84 @@
+extends CameraToolBasic
+class_name ReedCameraFollowController
+
+const _CONSTANTS := preload("res://addons/reedcamera/_data/CameraSystemConst.gd")
+
+@export_group("Dead Zone")
+@export var dead_zone_ratio := Rect2(
+	Vector2.ZERO,   # 屏幕中心
+	Vector2(0.4, 0.4)    # 宽高（屏幕比例）
+)
+
+@export_group("Follow") 
+@export var enabled_follow: bool = true 
+@export var follow_lerp := 0.12 # 0~1，越大越“跟手”，越小越“蔚蓝感”的滞后
+
+var _follow_node2d : Node2D = null
+var _desired_pos := Vector2.ZERO
+var _camera: Camera2D = null
+
+func _update_follow(delta: float) -> void:
+	if not enabled_follow:
+		return
+
+	if not _follow_node2d:
+		return
+
+	var cam := _get_camera_from_pointer()
+	if not cam:
+		return
+
+	# 初始化
+	if not _initialized:
+		_pos = cam.global_position
+		_desired_pos = _pos
+		_initialized = true
+
+	var view_rect := _get_camera_view_rect(cam)
+	var dead_rect := _get_dead_zone_world_rect(view_rect)
+
+	var p := player.global_position
+	var delta_move := Vector2.ZERO
+
+	if p.x < dead_rect.position.x:
+		delta_move.x = p.x - dead_rect.position.x
+	elif p.x > dead_rect.position.x + dead_rect.size.x:
+		delta_move.x = p.x - (dead_rect.position.x + dead_rect.size.x)
+
+	if p.y < dead_rect.position.y:
+		delta_move.y = p.y - dead_rect.position.y
+	elif p.y > dead_rect.position.y + dead_rect.size.y:
+		delta_move.y = p.y - (dead_rect.position.y + dead_rect.size.y)
+
+	if delta_move != Vector2.ZERO:
+		_desired_pos += delta_move
+
+	# 可选 room clamp
+	if use_room_clamp:
+		_desired_pos = _desired_pos.clamp(
+			room_world_rect.position,
+			room_world_rect.position + room_world_rect.size
+		)
+
+	# 蔚蓝感：滞后 lerp
+	_pos = _pos.lerp(_desired_pos, follow_lerp)
+
+func _get_camera_from_pointer() -> Camera2D: 
+	if _camera:
+		return _camera
+	
+	var p := get_parent() 
+	if p and p.has_method("get_camera"): 
+		_camera = p.get_camera() as Camera2D 
+		return _camera
+	
+	return _camera
+
+func _get_camera_view_rect(cam: Camera2D) -> Rect2:
+	var screen_size := cam.get_viewport_rect().size
+	var zoom := cam.zoom
+	zoom.x = maxf(zoom.x, 0.001)
+	zoom.y = maxf(zoom.y, 0.001)
+
+	var size := screen_size / zoom
+	return Rect2(cam.global_position - size * 0.5, size)

addons/reedcamera/scripts/camera_tools/CameraFollowController.gd.uid

@@ -0,0 +1 @@
+uid://wl83yn33gu3m