refactor(子弹系统): 重构子弹伤害检测逻辑

将子弹伤害检测逻辑提取到BulletTool工具类中
新增SevenSoul子弹的初始属性和碰撞处理
调整hitbox位置并启用碰撞检测

components/Bullets/SevenSoul.tscn

@@ -29,6 +29,9 @@ alpha_curve = SubResource("CurveTexture_d1eej")
 
 [node name="SevenSoul" instance=ExtResource("1_c4fl5")]
 script = ExtResource("2_egs34")
+speed = 0.0
+damage = 0.0
+penerate = 1.0
 lifeTime = 112000.0
 
 [node name="heart" type="Sprite2D" parent="texture" index="1"]
@@ -49,4 +52,4 @@ one_shot = true
 local_coords = true
 
 [node name="hitbox" parent="." index="1"]
-disabled = true
+position = Vector2(100, 0)

scripts/Contents/Bullets/SevenSoul.gd

@@ -15,6 +15,14 @@ var pingAfterGeneration: float = 5000
 @onready var heart = $"%heart"
 @onready var effect: GPUParticles2D = $"%effect"
 
+func register():
+	area_entered.connect(
+		func(area):
+			var bullet = BulletTool.fromArea(area)
+			if bullet and BulletTool.canDamage(bullet, launcher):
+				launcher.tryHeal(1)
+				launcher.storeEnergy(damage * 0.25)
+	)
 func spawn():
 	modulate = Color(colors[index % colors.size()])
 	effect.emitting = true

scripts/Statemachine/BulletBase.gd

@@ -81,10 +81,7 @@ func _physics_process(_delta: float) -> void:
 func hit(target: Node):
 	var entity: EntityBase = EntityTool.fromHurtbox(target)
 	if !entity || !launcher: return
-	if entity.currentInvinsible: return
-	if !canDamageSelf && entity == launcher: return
-	if !indisDamage && !GameRule.allowFriendlyFire:
-		if entity.isPlayer() == launcher.isPlayer() and launcher.currentFocusedBoss != entity: return
+	if !BulletTool.canDamage(self, entity): return
 	var resultDamage = entity.takeDamage(self, MathTool.rate(launcher.fields.get(FieldStore.Entity.CRIT_RATE) + GameRule.critRateInfluenceByLuckValue * launcher.fields[FieldStore.Entity.LUCK_VALUE]))
 	succeedToHit(resultDamage, entity)
 	if MathTool.rate(fullPenerate()):

scripts/Tools/BulletTool.gd

@@ -0,0 +1,13 @@
+class_name BulletTool
+
+static func fromArea(area: Area2D) -> BulletBase:
+	if area is BulletBase:
+		return area as BulletBase
+	else:
+		return null
+static func canDamage(bullet: BulletBase, target: EntityBase) -> bool:
+	if target.currentInvinsible: return false
+	if !bullet.canDamageSelf && target == bullet.launcher: return false
+	if !bullet.is_node_ready() && !GameRule.allowFriendlyFire:
+		if target.isPlayer() == bullet.launcher.isPlayer() and bullet.launcher.currentFocusedBoss != target: return false
+	return true