feat(怪物): 添加怪物y轴移动逻辑和死亡时间优化

为怪物添加y轴移动能力，使其能够向目标y坐标移动。同时优化怪物死亡时间，使用单独的monDeadTime变量控制怪物死亡时间，区别于英雄的realDeadTime。主要修改包括：
1. 在MonMoveComp中添加targetY字段用于y轴移动目标
2. 实现y轴移动逻辑和位置检查
3. 为HeroViewComp添加monDeadTime字段并应用

assets/script/game/hero/HeroViewComp.ts

@@ -47,6 +47,7 @@ export class HeroViewComp extends CCComp {
     box_group:number = BoxSet.HERO;  // 碰撞组
     realDeadTime:number=10
     deadCD:number=0
+    monDeadTime:number=0.5
     // 血条显示相关
     hpBarShowTime:number = 5;  // 血条显示持续时间（秒）
     hpBarShowCD:number = 0;    // 血条显示计时器
@@ -357,6 +358,12 @@ export class HeroViewComp extends CCComp {
         if(this.model.is_count_dead) return;
         this.model.is_count_dead = true;  // 防止重复触发，必须存在防止重复调用
         this.top_node.active=false
+        
+        // 怪物使用0.5秒死亡时间，英雄使用realDeadTime
+        if(this.model.fac === FacSet.MON){
+            this.realDeadTime = this.monDeadTime;
+        }
+        
         // 播放死亡特效
         this.as.dead();
         

assets/script/game/hero/MonMove.ts

@@ -19,6 +19,8 @@ export class MonMoveComp extends ecs.Comp {
     lane: number = 0;
     /** 生成顺序：用于同线路内的层级排序，数值越大越晚生成，层级越前 */
     spawnOrder: number = 0;
+    /** 目标y坐标 */
+    targetY: number = 0;
 
     reset() {
         this.direction = 1;
@@ -26,6 +28,7 @@ export class MonMoveComp extends ecs.Comp {
         this.moving = true;
         this.lane = 0;
         this.spawnOrder = 0;
+        this.targetY = 0;
     }
 }
 
@@ -60,25 +63,33 @@ export class MonMoveSystem extends ecs.ComblockSystem implements ecs.ISystemUpda
                 return;
             }
 
+            // 检查是否需要y轴靠近
+            this.checkAndSetTargetY(e);
 
+            // 怪物移动逻辑：同时向目标x和y方向移动
+            const deltaX = (model.Attrs[Attrs.SPEED]/3) * this.dt * move.direction;
+            const newX = view.node.position.x + deltaX;
             
-            // 怪物简单移动逻辑：向目标方向移动
-            const delta = (model.Attrs[Attrs.SPEED]/3) * this.dt * move.direction;
-            const newX = view.node.position.x + delta;
+            let newY = view.node.position.y;
+            if (move.targetY !== 0) {
+                const deltaY = (model.Attrs[Attrs.SPEED]/3) * this.dt * Math.sign(move.targetY - newY);
+                newY = newY + deltaY;
+                if (Math.abs(newY - move.targetY) < Math.abs(deltaY)) {
+                    newY = move.targetY;
+                    move.targetY = 0;
+                }
+            }
             
             // 限制移动范围
             if (this.validatePosition(newX, move)) {
                 view.status_change("move");
-                view.node.setPosition(newX, view.node.position.y, 0);
+                view.node.setPosition(newX, newY, 0);
             } else {
-                // 当达到目标位置边界时也切换为idle状态
                 view.status_change("idle");
-                // 达到边界是永久停止，设置moving为false
                 move.moving = false;
             }
         } else {
             view.status_change("idle");
-            // 因为敌人在面前而暂时停止，不设置moving为false，保持检查状态
         }
     }
 
@@ -192,4 +203,46 @@ export class MonMoveSystem extends ecs.ComblockSystem implements ecs.ISystemUpda
             return false;
         });
     }
+
+    /** 检查并设置y轴目标位置 */
+    private checkAndSetTargetY(entity: ecs.Entity): void {
+        const move = entity.get(MonMoveComp);
+        const currentView = entity.get(HeroViewComp);
+        const heroAttrs = entity.get(HeroAttrsComp);
+        
+        if (!currentView || !currentView.node || !heroAttrs) return;
+        if (move.targetY !== 0) return;
+        
+        const currentPos = currentView.node.position;
+        const team = heroAttrs.fac;
+        
+        let nearestHero: ecs.Entity | null = null;
+        let nearestDist = Infinity;
+        
+        ecs.query(ecs.allOf(HeroAttrsComp, HeroViewComp)).forEach(e => {
+            const model = e.get(HeroAttrsComp);
+            const view = e.get(HeroViewComp);
+            if (!view || !view.node) return;
+            if (model.fac === team || model.is_dead) return;
+            
+            const dist = Math.abs(currentPos.x - view.node.position.x);
+            if (dist < nearestDist) {
+                nearestDist = dist;
+                nearestHero = e;
+            }
+        });
+        
+        if (!nearestHero || nearestDist > 100) return;
+        
+        const heroView = nearestHero.get(HeroViewComp);
+        if (!heroView || !heroView.node) return;
+        
+        const heroY = heroView.node.position.y;
+        const yDist = Math.abs(currentPos.y - heroY);
+        
+        if (yDist > 50) {
+            const direction = heroY > currentPos.y ? 1 : -1;
+            move.targetY = heroY + direction * 50;
+        }
+    }
 }