feat(角色): 为熊角色添加阶段转换功能

添加阶段转换系统，当熊的生命值低于50%时进入第二阶段
- 添加mask精灵用于阶段变化视觉效果
- 实现enterStage和exitStage方法处理阶段转换
- 添加stageAnimator处理转换动画
- 调整攻击7的音效播放位置

components/Abstracts/EntityBase.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=36 format=3 uid="uid://cvogxi7mktumf"]
+[gd_scene load_steps=40 format=3 uid="uid://cvogxi7mktumf"]
 
 [ext_resource type="Script" path="res://scripts/Statemachine/EntityBase.gd" id="1_mvol6"]
 [ext_resource type="Texture2D" uid="uid://dwwpkn4q07ja2" path="res://icon.svg" id="2_7lpu0"]
@@ -169,6 +169,123 @@ _data = {
 "hurt": SubResource("Animation_wl2we")
 }
 
+[sub_resource type="Animation" id="Animation_n7kxn"]
+length = 0.001
+tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale:x")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0)
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:scale:y")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0)
+}
+tracks/2/type = "bezier"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath(".:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0)
+}
+
+[sub_resource type="Animation" id="Animation_lg0kn"]
+resource_name = "exit"
+step = 0.1
+tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale:x")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(2, -0.25, 0, 0.25, 0, 1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:scale:y")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(0, -0.25, 0, 0.25, 0, 1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+tracks/2/type = "bezier"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath(".:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(0, -0.25, 0, 0.25, 0, 1, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+
+[sub_resource type="Animation" id="Animation_nfj4q"]
+resource_name = "exit"
+step = 0.1
+tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale:x")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0, 2, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:scale:y")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0, 0, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+tracks/2/type = "bezier"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath(".:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(1, -0.25, 0, 0.25, 0, 0, -0.25, 0, 0.25, 0),
+"times": PackedFloat32Array(0, 1)
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_vvkcp"]
+_data = {
+"RESET": SubResource("Animation_n7kxn"),
+"enter": SubResource("Animation_lg0kn"),
+"exit": SubResource("Animation_nfj4q")
+}
+
 [sub_resource type="Curve" id="Curve_cs3iy"]
 _data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
 point_count = 2
@@ -280,7 +397,6 @@ stream = ExtResource("2_qt0aq")
 [node name="texture" type="AnimatedSprite2D" parent="."]
 unique_name_in_owner = true
 position = Vector2(0, -50)
-scale = Vector2(-1, 1)
 sprite_frames = SubResource("SpriteFrames_wcqpm")
 animation = &"idle"
 
@@ -309,6 +425,12 @@ libraries = {
 "": SubResource("AnimationLibrary_kbmff")
 }
 
+[node name="stageAnimator" type="AnimationPlayer" parent="texture"]
+unique_name_in_owner = true
+libraries = {
+"": SubResource("AnimationLibrary_vvkcp")
+}
+
 [node name="weapons" type="Node2D" parent="texture"]
 unique_name_in_owner = true
 

components/Characters/Bear.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=26 format=3 uid="uid://m60bwhdpbem8"]
+[gd_scene load_steps=30 format=3 uid="uid://m60bwhdpbem8"]
 
 [ext_resource type="PackedScene" uid="uid://cvogxi7mktumf" path="res://components/Abstracts/EntityBase.tscn" id="1_3ves7"]
 [ext_resource type="Script" path="res://scripts/Contents/Characters/Bear.gd" id="2_kh2af"]
@@ -34,6 +34,58 @@ animations = [{
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_akdh6"]
 size = Vector2(335, 344)
 
+[sub_resource type="Animation" id="Animation_sxh2u"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Vector2(-1, 1)]
+}
+
+[sub_resource type="Animation" id="Animation_vxanw"]
+resource_name = "left"
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Vector2(-1, 1)]
+}
+
+[sub_resource type="Animation" id="Animation_nuh11"]
+resource_name = "left"
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Vector2(1, 1)]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_dwflo"]
+_data = {
+"RESET": SubResource("Animation_sxh2u"),
+"left": SubResource("Animation_vxanw"),
+"right": SubResource("Animation_nuh11")
+}
+
 [sub_resource type="Curve" id="Curve_u430e"]
 _data = [Vector2(0, 0), 0.0, 0.0, 0, 0, Vector2(0.2, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
 point_count = 3
@@ -125,6 +177,11 @@ visible = false
 position = Vector2(-2.5, -1)
 shape = SubResource("RectangleShape2D_akdh6")
 
+[node name="animator" parent="texture" index="1"]
+libraries = {
+"": SubResource("AnimationLibrary_dwflo")
+}
+
 [node name="normal" type="Node2D" parent="texture/weapons" index="0"]
 
 [node name="sprintParticle" type="GPUParticles2D" parent="texture" index="6"]
@@ -136,6 +193,8 @@ process_material = SubResource("ParticleProcessMaterial_5v3nj")
 texture = ExtResource("13_v2sdb")
 
 [node name="mask" type="Sprite2D" parent="texture" index="7"]
+unique_name_in_owner = true
+visible = false
 material = SubResource("ShaderMaterial_6h05p")
 texture = ExtResource("13_v2sdb")
 

scripts/Contents/Characters/Bear.gd

@@ -2,6 +2,7 @@ extends EntityBase
 class_name Bear # 攻击方式模仿泰拉瑞亚光之女皇
 
 @onready var sprintParticle: GPUParticles2D = $"%sprintParticle"
+@onready var mask: Sprite2D = $"%mask"
 
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 2000
@@ -15,12 +16,19 @@ func register():
 	attackCooldownMap[6] = 10000
 	attackCooldownMap[7] = 9000
 	sprintMultiplier = 80
+	healthChanged.connect(
+		func(newHealth):
+			setStage(1 if newHealth < fields[FieldStore.Entity.MAX_HEALTH] * 0.5 else 0)
+	)
 func spawn():
 	texture.play("walk")
 func ai():
 	PresetEntityAI.follow(self, currentFocusedBoss, 400)
 	for i in len(attackCooldownMap.keys()):
 		tryAttack(i)
+func enterStage(stage):
+	mask.visible = !!stage
+	await TickTool.millseconds(2000)
 func attack(type):
 	var weaponPos = findWeaponAnchor("normal")
 	if type == 0:
@@ -82,11 +90,11 @@ func attack(type):
 			await TickTool.millseconds(100)
 		return false
 	elif type == 7:
-		playSound("attack7")
 		var angle = deg_to_rad(70)
 		for j in 4:
 			var initAngle = randf_range(0, 360)
 			if !is_instance_valid(currentFocusedBoss): return false
+			playSound("attack7")
 			for i in 16:
 				for bullet in BulletBase.generate(preload("res://components/Bullets/BossAttack/Bear/LightGun.tscn"), self, currentFocusedBoss.position, 0):
 					bullet.rotation_degrees += initAngle

scripts/Statemachine/EntityBase.gd

@@ -78,6 +78,7 @@ var inventoryMax = {
 @onready var hurtbox: Area2D = $"%hurtbox"
 @onready var sounds: Node2D = $"%sounds"
 @onready var hurtAnimator: AnimationPlayer = $"%hurtAnimator"
+@onready var stageAnimator: AnimationPlayer = $"%stageAnimator"
 @onready var damageAnchor: Node2D = $"%damageAnchor"
 @onready var trailParticle: GPUParticles2D = $"%trailParticle"
 @onready var weaponStore = $"%weaponStore"
@@ -94,6 +95,7 @@ var currentFocusedBoss: EntityBase = null
 var charginup: bool = false
 var weapons: Array[Weapon] = []
 var canRunAi: bool = true
+var currentStage: int = 0
 
 func _ready():
 	register()
@@ -164,6 +166,19 @@ func _physics_process(_delta: float) -> void:
 	trailParticle.emitting = trailing
 
 # 通用方法
+func setStage(stage: int):
+	if currentStage == stage:
+		return
+	canRunAi = false
+	var oldStage = currentStage
+	currentStage = stage
+	stageAnimator.play("exit")
+	await stageAnimator.animation_finished
+	await exitStage(oldStage)
+	await enterStage(stage)
+	stageAnimator.play("enter")
+	await stageAnimator.animation_finished
+	canRunAi = true
 func applyLevel():
 	fields[FieldStore.Entity.MAX_HEALTH] *= (1 + GameRule.entityHealthIncreasePerWave * (GameRule.difficulty + 1)) ** level
 	fields[FieldStore.Entity.DAMAGE_MULTIPILER] *= (1 + GameRule.entityDamageIncreasePerWave * (GameRule.difficulty + 1)) ** level
@@ -342,6 +357,10 @@ func register():
 	pass
 func spawn():
 	pass
+func exitStage(_stage: int):
+	pass
+func enterStage(_stage: int):
+	pass
 
 static func generate(
 	entity: PackedScene,