feat(武器): 增强核弹效果并添加警告动画

- 提升核弹的攻击力和爆炸半径
- 为核弹添加逐渐扩大的红色警告环
- 改进核爆炸效果，调整粒子参数和震动强度
- 新增填充环着色器用于警告效果

components/Bullets/NuclearBomb.tscn

@@ -1,8 +1,16 @@
-[gd_scene load_steps=7 format=3 uid="uid://6aetx86j5ue"]
+[gd_scene load_steps=10 format=3 uid="uid://6aetx86j5ue"]
 
 [ext_resource type="PackedScene" uid="uid://crtdkysmnkith" path="res://components/Abstracts/BulletBase.tscn" id="1_dpea6"]
 [ext_resource type="Texture2D" uid="uid://gs6jd1qxkl74" path="res://resources/bullets/nuclear-bomb/bomb.png" id="2_1kyo5"]
 [ext_resource type="Script" path="res://scripts/Contents/Bullets/NuclearBomb.gd" id="2_f85ek"]
+[ext_resource type="Shader" path="res://shaders/FilledRing.gdshader" id="4_dheb6"]
+[ext_resource type="Script" path="res://scripts/Statemachine/ShaderStage.gd" id="4_wb270"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_s7tor"]
+shader = ExtResource("4_dheb6")
+shader_parameter/inner = 0.98
+shader_parameter/outer = 1.0
+shader_parameter/alpha = 0.1
 
 [sub_resource type="SpriteFrames" id="SpriteFrames_mku0w"]
 animations = [{
@@ -32,7 +40,14 @@ indisDamage = true
 canDamageSelf = true
 autoDestroyOnHitMap = false
 
-[node name="texture" parent="." index="0"]
+[node name="warn" type="Node2D" parent="." index="0"]
+unique_name_in_owner = true
+material = SubResource("ShaderMaterial_s7tor")
+script = ExtResource("4_wb270")
+size = Vector2(0, 0)
+color = Color(1, 0, 0, 1)
+
+[node name="texture" parent="." index="1"]
 sprite_frames = SubResource("SpriteFrames_mku0w")
 
 [node name="anchor" type="Node2D" parent="texture" index="1"]
@@ -49,6 +64,5 @@ label_settings = SubResource("LabelSettings_asfas")
 horizontal_alignment = 1
 vertical_alignment = 1
 
-[node name="hitbox" parent="." index="1"]
-visible = false
+[node name="hitbox" parent="." index="2"]
 shape = SubResource("CircleShape2D_nhppq")

components/Effects/NuclearExplosion.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=21 format=3 uid="uid://8lxfkx47fn2c"]
+[gd_scene load_steps=23 format=3 uid="uid://8lxfkx47fn2c"]
 
 [ext_resource type="PackedScene" uid="uid://bcvuuy2m0pke0" path="res://components/Abstracts/EffectBase.tscn" id="1_qngiw"]
 [ext_resource type="AudioStream" uid="uid://b6lss67etwrl" path="res://resources/sounds/effect/nuclear-explosion.mp3" id="2_8nbe8"]
@@ -11,6 +11,13 @@ point_count = 2
 [sub_resource type="CurveTexture" id="CurveTexture_afnd6"]
 curve = SubResource("Curve_dhavk")
 
+[sub_resource type="Curve" id="Curve_8kj3m"]
+_data = [Vector2(0, 1), 0.0, 0.0, 0, 0, Vector2(1, 0), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_p1xl1"]
+curve = SubResource("Curve_8kj3m")
+
 [sub_resource type="Gradient" id="Gradient_gan5i"]
 colors = PackedColorArray(1, 0.801445, 0.486847, 1, 1, 0.432907, 0, 1)
 
@@ -35,12 +42,15 @@ curve = SubResource("Curve_c6aew")
 particle_flag_disable_z = true
 emission_shape = 1
 emission_sphere_radius = 50.0
+angle_min = 1.07288e-05
+angle_max = 360.0
+angle_curve = SubResource("CurveTexture_p1xl1")
 spread = 30.0
 initial_velocity_min = -600.0
 initial_velocity_max = 600.0
 gravity = Vector3(0, -400, 0)
-scale_min = 3.0
-scale_max = 8.0
+scale_min = 5.0
+scale_max = 10.0
 scale_curve = SubResource("CurveTexture_8kws8")
 color_ramp = SubResource("GradientTexture1D_vjiyn")
 color_initial_ramp = SubResource("GradientTexture1D_suafd")

components/Weapons/NuclearBomb.tscn

@@ -12,8 +12,8 @@ quality = 4
 typeTopic = 2
 costBeachball = 100
 store = {
-"atk": 100,
-"radius": 400.0
+"atk": 200,
+"radius": 500.0
 }
 storeType = {
 "atk": 1,

scripts/Contents/Bullets/NuclearBomb.gd

@@ -3,6 +3,7 @@ class_name NuclearBomb
 
 @onready var label: Label = $"%label"
 @onready var anchor: Node2D = $"%anchor"
+@onready var warn: ShaderStage = $"%warn"
 
 var countdown = 10000
 var radius = 500
@@ -14,11 +15,13 @@ func spawn():
 func ai():
 	speed *= 0.99
 	PresetBulletAI.forward(self, rotation)
-	label.text = "NUCLEAR WARNING %.1f" % ((countdown - timeLived()) / 1000)
 	if timeLived() > countdown:
 		tryDestroy()
+	else:
+		warn.size = Vector2.ONE * 2 * radius * (timeLived() / countdown)
+		label.text = "NUCLEAR WARNING %.1f" % ((countdown - timeLived()) / 1000)
 func destroy(_b):
 	EffectController.create(preload("res://components/Effects/NuclearExplosion.tscn"), global_position).shot()
 	hitbox.disabled = false
-	CameraManager.shake(5000, 250, func(_c, t, r): return t * r) # 震屏强度随进度递减
+	CameraManager.shake(5000, 500, func(_c, t, r): return t * r) # 震屏强度随进度递减
 	await TickTool.frame(5)

scripts/Statemachine/ShaderStage.gd

@@ -5,6 +5,8 @@ class_name ShaderStage
 @export var size: Vector2 = Vector2.ONE * 100
 @export var color: Color = Color.WHITE
 
+func _ready():
+	material = material.duplicate()
 func _draw():
 	draw_rect(Rect2(size / -2, size), color)
 func _process(_delta):

shaders/FilledRing.gdshader

@@ -0,0 +1,13 @@
+shader_type canvas_item;
+uniform float inner:hint_range(0.0, 1.0, 0.01)=0.5;
+uniform float outer:hint_range(0.0, 1.0, 0.01)=0.75;
+uniform float alpha:hint_range(0.0, 1.0, 0.1)=0.5;
+void fragment() {
+	vec2 center=vec2(0.5);
+	float dist=distance(UV,center)*2.0;
+	if(dist<inner){
+		COLOR.a*=alpha;
+	}else{
+		COLOR.a*=float(inner<dist&&dist<outer);
+	}
+}