feat: 实现DoT灼烧技能与debuff图标系统

本次提交完成了以下核心改动：
1.  调整fb-1~fb-6技能预制件的攻击偏移坐标，优化技能弹道位置
2.  新增DoT伤害机制，支持周期伤害/治疗的独立结算
3.  为Buff系统添加施法者属性快照，让DoT暴击、控制判定更准确
4.  新增顶栏debuff图标显示功能，支持灼烧等负面状态可视化
5.  为破晓先知等英雄替换为新的灼烧火球技能6104
6.  修复fb-2预制件的配置字段顺序与多余属性问题

assets/script/game/hero/HeroTopBarComp.ts

@@ -1,7 +1,9 @@
-import { _decorator, ProgressBar, Sprite, UIOpacity, Vec3, v3, tween, Tween, Color, clamp } from "cc";
+import { _decorator, ProgressBar, Sprite, UIOpacity, Vec3, v3, tween, Tween, Color, clamp, Node } from "cc";
 import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
 import { CCComp } from "../../../../extensions/oops-plugin-framework/assets/module/common/CCComp";
 import { HeroAttrsComp } from "./HeroAttrsComp";
+import { BuffComp } from "./BuffComp";
+import { BuffList, BuffCategory } from "../common/config/BuffSet";
 import { FacSet, FightSet } from "../common/config/GameSet";
 
 const { ccclass, property } = _decorator;
@@ -35,6 +37,10 @@ export class HeroTopBarComp extends CCComp {
     // ==================== 内部引用 ====================
     private topOpacity: UIOpacity = null!;
     private basePos: Vec3 = v3();
+    /** debuff 容器节点（top 下的 debuff 子节点，按名字管理各 debuff 图标） */
+    private debuffNode: Node = null!;
+    /** 当前点亮的 debuff 图标节点名集合（用于 diff，避免每帧重复 set active） */
+    private activeDebuffNames: Set<string> = new Set();
 
     // ==================== 配置 ====================
     private hp_height: number = 90;
@@ -87,6 +93,15 @@ export class HeroTopBarComp extends CCComp {
         this.node.getChildByName("lv")!.active = false;
         this.node.active = true;
 
+        // debuff 图标容器（无该节点的旧 prefab 容错为 null）
+        this.debuffNode = this.node.getChildByName("debuff")!;
+        this.activeDebuffNames.clear();
+        if (this.debuffNode) {
+            for (const child of this.debuffNode.children) {
+                child.active = false;
+            }
+        }
+
         this.setTopBarOpacity(false);
         this.hpShow();
         this.shieldShow(model.shield);
@@ -120,6 +135,51 @@ export class HeroTopBarComp extends CCComp {
         this.shieldProgressBar.node.active = shield > 0;
     }
 
+    /**
+     * buffId → debuff 图标节点名映射（节点名为 top.prefab debuff 容器下的子节点名）。
+     * 仅伤害类 debuff 需要图标；未映射的 buff 不显示。
+     */
+    private static readonly DEBUFF_ICON_MAP: Record<number, string> = {
+        7002: "FireDamage",   // 灼烧
+    };
+
+    /**
+     * 刷新 debuff 图标显隐：按 BuffComp 中当前生效的 debuff 种类点亮对应图标。
+     * 由 HeroViewComp 在 dirty_buffs 脏标记时调用；与上次状态做 diff，避免重复 set active。
+     * @param buffComp 目标的 buff 组件（无 BuffComp 时全部隐藏）
+     */
+    public debuffShow(buffComp: BuffComp | null): void {
+        if (!this.debuffNode) return;
+
+        // 收集当前生效的、有图标映射的 debuff 节点名
+        const wantActive = new Set<string>();
+        if (buffComp) {
+            for (const [buffId, layers] of buffComp.buffs) {
+                if (layers.length === 0) continue;
+                const cfg = BuffList[buffId];
+                // 只显示伤害类 debuff（tick 负值）与控制类 debuff；普通 Buff 不占用 debuff 栏
+                if (!cfg || cfg.category === BuffCategory.Buff) continue;
+                const nodeName = HeroTopBarComp.DEBUFF_ICON_MAP[buffId];
+                if (nodeName) wantActive.add(nodeName);
+            }
+        }
+
+        // diff：先隐藏不再需要的，再点亮新增的
+        for (const name of this.activeDebuffNames) {
+            if (!wantActive.has(name)) {
+                const child = this.debuffNode.getChildByName(name);
+                if (child) child.active = false;
+            }
+        }
+        for (const name of wantActive) {
+            if (!this.activeDebuffNames.has(name)) {
+                const child = this.debuffNode.getChildByName(name);
+                if (child) child.active = true;
+            }
+        }
+        this.activeDebuffNames = wantActive;
+    }
+
     /** 激活顶栏（高亮 + 延迟恢复闲置透明度） */
     public activateTopBar(): void {
         this.setTopBarOpacity(true);
@@ -165,6 +225,12 @@ export class HeroTopBarComp extends CCComp {
     /** 对象池回收 / 组件重置时调用 */
     public reset(): void {
         this.unscheduleAllCallbacks();
+        this.activeDebuffNames.clear();
+        if (this.debuffNode && this.debuffNode.isValid) {
+            for (const child of this.debuffNode.children) {
+                child.active = false;
+            }
+        }
         if (this.node && this.node.isValid) {
             Tween.stopAllByTarget(this.node);
             this.node.setPosition(this.basePos);