feat(武器): 实现酸蚀风暴武器及其相关子弹效果

添加酸蚀风暴武器，它会发射一个吸引五种不同类型酸液子弹的风暴中心
修改酸液子弹基类以支持风暴效果
调整酸风武器的属性值和描述
移除旧版随机发射酸液子弹的逻辑

scripts/Contents/Bullets/AcidBulletBase.gd

@@ -2,8 +2,8 @@ extends BulletBase
 class_name AcidBulletBase
 
 enum AcidType {
-    STRONG,
-    WEAK,
+	STRONG,
+	WEAK,
 }
 @export var acidType: AcidType = AcidType.STRONG
 
@@ -11,7 +11,15 @@ var arg1 = 0
 var arg2 = 0
 var arg3 = 0
 
+var randomPercent: float = 0
+var storm: AcidStormBullet = null
+
 func register():
-    scale.y *= MathTool.randomChoiceFrom([-1, 1])
+	scale.y *= MathTool.randomChoiceFrom([-1, 1])
+	randomPercent = randf_range(0, 1)
 func ai():
-    PresetBulletAI.forward(self, rotation)
+	if is_instance_valid(storm):
+		position = storm.position + Vector2.from_angle(deg_to_rad((lifeTimePercent() + randomPercent) * 360)) * 150 * (1 - lifeTimePercent())
+		rotation = storm.position.angle_to_point(position) + deg_to_rad(90)
+	else:
+		tryDestroy()