feat(武器系统): 为BigLaser武器添加执行伤害和升华选项

- 在ObstacleBase和EntityBase中添加getHealthPercent方法用于获取生命值百分比
- 修改bulletHit方法支持伤害覆盖参数
- 为BigLaser武器添加5个升华选项，包括临界斩杀效果
- 实现damageOverride方法根据目标生命值动态调整伤害
- 修复store数值可能为负数的问题

scripts/Contents/Bullets/BigLaser.gd

@@ -2,6 +2,7 @@ extends BulletBase
 class_name BigLaser
 
 var dotTime: float = 100
+var executeAtk: float = 0.25
 
 func spawn():
 	CameraManager.shake(5000, 100) # 激光会运行5秒（5000毫秒），期间震屏超高强度
@@ -17,3 +18,10 @@ func applyDot():
 	await TickTool.millseconds(dotTime / launcher.fields[FieldStore.Entity.ATTACK_SPEED])
 	await TickTool.frame() # 等至少一帧，防止跳帧导致没检测到伤害
 	return true
+func damageOverride(origin: float, something: Variant):
+	if something is EntityBase:
+		return origin * (1 + (executeAtk if something.getHealthPercent() < 0.3 else 0.0))
+	elif something is ObstacleBase:
+		return origin * (1 + (executeAtk if something.getHealthPercent() < 0.3 else 0.0))
+	else:
+		return origin

scripts/Contents/Weapons/BigLaser.gd

@@ -2,6 +2,51 @@
 extends Weapon
 class_name BigLaserWeapon
 
+func sublimateOptions() -> Array[SublimateOption]:
+	return [
+		SublimateOption.new(
+			"湮灭强化",
+			"伤害+15",
+			func(w: Weapon, _e):
+				w.addStoreExtra("atk", 15),
+			1,
+			CategoryStore.Quality.COMMON
+		),
+		SublimateOption.new(
+			"高频激荡",
+			"间隔-0.01秒",
+			func(w: Weapon, _e):
+				w.addStoreExtra("time", -0.01),
+			1,
+			CategoryStore.Quality.RARE
+		),
+		SublimateOption.new(
+			"临界斩杀",
+			"对生命值低于30%的敌人，伤害+25%",
+			func(w: Weapon, _e):
+				w.addStoreExtra("executeAtk", 0.25),
+			1,
+			CategoryStore.Quality.EPIC
+		),
+		SublimateOption.new(
+			"蓄能聚焦",
+			"射线伤害+30，但伤害间隔+0.03秒",
+			func(w: Weapon, _e):
+				w.addStoreExtra("atk", 30)
+				w.addStoreExtra("time", 0.03),
+			1,
+			CategoryStore.Quality.LEGENDARY
+		),
+		SublimateOption.new(
+			"空间撕裂",
+			"射线持续时间+0.3秒",
+			func(w: Weapon, _e):
+				w.addStoreExtra("duration", 0.3),
+			2,
+			CategoryStore.Quality.COMMON
+		),
+	]
+
 func update(to: int, origin: Dictionary, _entity: EntityBase):
 	origin["atk"] += 5 * to * soulLevel
 	origin["time"] /= 1 + 0.05 * to * soulLevel
@@ -12,4 +57,7 @@ func attack(entity: EntityBase):
 		var bigLaser: BigLaser = bullet
 		bigLaser.dotTime = readStore("time") * 1000
 		bigLaser.baseDamage = readStore("atk")
+		bigLaser.executeAtk = readStoreExtra("executeAtk")
+		await TickTool.frame()
+		bigLaser.animator.speed_scale = 5 / (5 + readStoreExtra("duration"))
 	return true

scripts/Statemachine/BulletBase.gd

@@ -141,10 +141,10 @@ func setupCuttable(cutSpeed: float):
 	)
 func getDamage():
 	return baseDamage * damageMultipliers[usingDamageMultiplier]
-func calculateDamage(crit: bool):
+func calculateDamage(crit: bool, entity: Variant):
 	var baseDmg = getDamage() * launcher.fields.get(FieldStore.Entity.DAMAGE_MULTIPILER) * randf_range(1 - GameRule.damageOffset, 1 + GameRule.damageOffset)
 	var damage = baseDmg + baseDmg * int(crit) * launcher.fields.get(FieldStore.Entity.CRIT_DAMAGE)
-	return damage
+	return damageOverride(damage, entity)
 func determineCrit():
 	return MathTool.rate(launcher.fields.get(FieldStore.Entity.CRIT_RATE) + GameRule.critRateInfluenceByLuckValue * launcher.fields[FieldStore.Entity.LUCK_VALUE])
 func hitEntity(target: Node):
@@ -161,7 +161,7 @@ func hitObstacle(target: Node):
 		var obstacle = target as ObstacleBase
 		if is_instance_valid(obstacle.launcher):
 			if not BulletTool.canDamage(self , obstacle.launcher): return
-		obstacle.takeDamage(calculateDamage(determineCrit()))
+		obstacle.takeDamage(calculateDamage(determineCrit(), target))
 		if MathTool.rate(fullPenerate() - obstacle.penerateResistance):
 			baseDamage *= 1.0 - penerateDamageReduction
 		else:
@@ -257,6 +257,8 @@ func refract(newBullet: BulletBase, _entity: EntityBase, _index: int, _total: in
 	return newBullet
 func hitBullet(_bullet: BulletBase):
 	pass
+func damageOverride(origin: float, _something: Variant):
+	return origin
 
 static func generate(
 		bullet: PackedScene,

scripts/Statemachine/EntityBase.gd

@@ -282,10 +282,10 @@ func takeDamage(baseDamage: float, crit: bool = false, perfectMiss: bool = false
 	if health <= 0:
 		tryDie(null)
 	return resultDamage
-func bulletHit(bullet: BulletBase, crit: bool):
+func bulletHit(bullet: BulletBase, crit: bool, damageOverride = "none"):
 	# 当受伤时
 	hurtAnimator.play("hurt")
-	var damage = bullet.calculateDamage(crit)
+	var damage = bullet.calculateDamage(crit) if damageOverride == "none" else damageOverride
 	var perfectMiss = false
 	if sprinting:
 		playSound("miss")

scripts/Statemachine/ObstacleBase.gd

@@ -44,6 +44,8 @@ func takeDamage(damage: float):
 func tryDie():
 	die()
 	queue_free()
+func getHealthPercent():
+	return health / healthMax
 
 func die():
 	pass

scripts/Structs/Weapon.gd

@@ -241,7 +241,7 @@ func rebuildSublimateOptions(showNext: bool):
 		sublimateOptionsBox.add_child(instance)
 	disruptSublimateOptions()
 func readStore(key: String):
-	return store.get(key, 0) + readStoreExtra(key)
+	return clamp(store.get(key, 0) + readStoreExtra(key), 0, INF)
 func playSound(sound: String):
 	var body = sounds.get_node_or_null(sound)
 	if body is AudioStreamPlayer2D:
@@ -284,7 +284,6 @@ func addStoreExtra(key: String, value: float):
 	if !storeExtra.has(key):
 		storeExtra[key] = 0
 	storeExtra[key] += value
-	storeExtra[key] = clamp(storeExtra[key], 0, INF)
 func readStoreExtra(key: String):
 	return storeExtra.get(key, 0)
 func getSublimateOptions() -> Array[SublimateOption]: