feat(ui): 将卡牌槽位从4个调整为3个并更新布局

- 隐藏第四个卡牌槽位，将抽卡逻辑从4张改为3张
- 调整卡牌预制体中的位置和尺寸以适配新布局
- 更新角色控制器UI的宽度和间距设置
- 修改卡牌放大时的位置判定阈值和高度

assets/script/game/map/MissionCardComp.ts

@@ -520,7 +520,10 @@ export class MissionCardComp extends CCComp {
 
     /** 将四个卡槽节点映射为 CardComp，形成固定顺序控制数组 */
     private cacheCardComps() {
-        const nodes = [this.card1, this.card2, this.card3, this.card4];
+        if (this.card4) {
+            this.card4.active = false;
+        }
+        const nodes = [this.card1, this.card2, this.card3];
         this.cardComps = nodes
             .map(node => node?.getComponent(CardComp))
             .filter((comp): comp is CardComp => !!comp);
@@ -641,7 +644,7 @@ export class MissionCardComp extends CCComp {
         });
     }
 
-    /** 构建本次抽卡结果，保证最终可分发4条数据 */
+    /** 构建本次抽卡结果，保证最终可分发3条数据 */
     private buildDrawCards(): CardConfig[] {
         let targetType: CardType | CardType[] | undefined = undefined;
         if (this.isBattlePhase) {
@@ -651,11 +654,11 @@ export class MissionCardComp extends CCComp {
         }
         const cards = getCardsByLv(this.poolLv, targetType);
         
-        /** 正常情况下直接取前4 */
-        if (cards.length >= 4) return cards.slice(0, 4);
-        /** 兜底：当返回不足4张时循环补齐，保证分发不缺位 */
+        /** 正常情况下直接取前3 */
+        if (cards.length >= 3) return cards.slice(0, 3);
+        /** 兜底：当返回不足3张时循环补齐，保证分发不缺位 */
         const filled = [...cards];
-        while (filled.length < 4) {
+        while (filled.length < 3) {
             const fallback = getCardsByLv(this.poolLv, targetType);
             if (fallback.length === 0) break;
             filled.push(fallback[filled.length % fallback.length]);
@@ -665,14 +668,14 @@ export class MissionCardComp extends CCComp {
 
     private tryRefreshHeroCards(heroType?: HType, targetPoolLv?: number): boolean {
         const cards = drawCardsByRule(this.poolLv, {
-            count: 4,
+            count: 3,
             type: CardType.Hero,
             heroType,
             targetPoolLv
         });
         if (cards.length <= 0) return false;
         this.layoutCardSlots();
-        this.dispatchCardsToSlots(cards.slice(0, 4));
+        this.dispatchCardsToSlots(cards.slice(0, 3));
         return true;
     }
 
@@ -708,15 +711,12 @@ export class MissionCardComp extends CCComp {
     private layoutCardSlots() {
         const count = this.cardComps.length;
         if (count === 0) return;
-        const startX = -((count - 1) * this.cardWidth) / 2;
         for (let i = 0; i < count; i++) {
-            const x = startX + i * this.cardWidth;
-            this.cardComps[i].setSlotPosition(x);
+            this.cardComps[i].setSlotPosition(this.cardsPos[i]);
         }
         mLogger.log(this.debugMode, "MissionCardComp", "layout card slots", {
             count,
-            cardWidth: this.cardWidth,
-            startX
+            cardWidth: this.cardWidth
         });
     }