feat: 添加掉落物功能，更新饲料和物品显示，重构相关UI组件

components/UI/BossBar.tscn

@@ -6,8 +6,8 @@
 [sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_ar00p"]
 content_margin_left = 10.0
 
-[sub_resource type="LabelSettings" id="LabelSettings_55nrw"]
-font_size = 14
+[sub_resource type="LabelSettings" id="LabelSettings_esyuk"]
+font_size = 12
 font_color = Color(0, 0, 0, 1)
 
 [node name="BossBar" type="Control"]
@@ -48,16 +48,19 @@ layout_mode = 2
 [node name="name" type="Label" parent="health/panel/label"]
 unique_name_in_owner = true
 layout_mode = 2
+size_flags_vertical = 8
 text = "BossName"
-label_settings = SubResource("LabelSettings_55nrw")
+label_settings = SubResource("LabelSettings_esyuk")
 
 [node name="value" type="Label" parent="health/panel/label"]
 unique_name_in_owner = true
 layout_mode = 2
+size_flags_vertical = 8
 text = "percent"
-label_settings = SubResource("LabelSettings_55nrw")
+label_settings = SubResource("LabelSettings_esyuk")
 
 [node name="percent" type="Label" parent="health/panel/label"]
 layout_mode = 2
+size_flags_vertical = 8
 text = "%"
-label_settings = SubResource("LabelSettings_55nrw")
+label_settings = SubResource("LabelSettings_esyuk")

components/UI/ItemDropped.tscn

@@ -0,0 +1,18 @@
+[gd_scene load_steps=4 format=3 uid="uid://cxcvc1rjvm8i2"]
+
+[ext_resource type="Script" path="res://scripts/Statemachine/ItemDropped.gd" id="1_v2djl"]
+[ext_resource type="Texture2D" uid="uid://bks8jmctleina" path="res://resources/items/baseball.svg" id="2_4hl42"]
+
+[sub_resource type="CircleShape2D" id="CircleShape2D_7lt1c"]
+radius = 7.0
+
+[node name="ItemDropped" type="RigidBody2D"]
+script = ExtResource("1_v2djl")
+
+[node name="texture" type="Sprite2D" parent="."]
+unique_name_in_owner = true
+scale = Vector2(0.25, 0.25)
+texture = ExtResource("2_4hl42")
+
+[node name="hitbox" type="CollisionShape2D" parent="."]
+shape = SubResource("CircleShape2D_7lt1c")