refactor(skill): 移除未使用的rePos方法并实现贝塞尔移动逻辑

- 删除SMoveDataComp中未使用的rePos方法以简化代码
- 在SMoveSystem中为贝塞尔移动类型实现完整的坐标计算逻辑
- 添加resolveBezierFinalXByHorizon方法计算水平线上的最终X坐标

assets/script/game/skill/SMoveComp.ts

@@ -90,27 +90,6 @@ export class SMoveDataComp extends ecs.Comp {
         this.autoDestroy = true;
     }
     
-    /**
-     * 重新计算位置（用于线性移动的延长）
-     */
-    rePos(originalStart: Vec3) {
-        if (!originalStart) {
-            return;
-        }
-        
-        // 计算方向向量
-        const direction = new Vec3();
-        Vec3.subtract(direction, this.targetPos, originalStart);
-        direction.normalize();
-        
-        // 延长720像素
-        const extendedTarget = new Vec3();
-        Vec3.scaleAndAdd(extendedTarget, originalStart, direction, 720);
-        
-        this.startPos.set(originalStart);
-        this.targetPos.set(extendedTarget);
-    }
-    
     /**
      * 开始移动
      */

assets/script/game/skill/SMoveSystem.ts

@@ -103,8 +103,22 @@ export class SMoveSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
                 node.setPosition(moveComp.targetPos.x > 360 ? 300 : moveComp.targetPos.x, node.position.y, 0);
                 break;
             case RType.bezier:
-                //
-                return
+                const bezierStartPos = v3(
+                    moveComp.startPos.x + moveComp.atk_x,
+                    moveComp.startPos.y + moveComp.atk_y,
+                    moveComp.startPos.z
+                );
+                const bezierTargetPos = v3(
+                    moveComp.targetPos.x + moveComp.atk_x,
+                    moveComp.targetPos.y + moveComp.atk_y,
+                    moveComp.targetPos.z
+                );
+                const horizonY = bezierStartPos.y;
+                const finalX = this.resolveBezierFinalXByHorizon(bezierStartPos, bezierTargetPos, horizonY);
+                moveComp.startPos.set(bezierStartPos);
+                moveComp.targetPos.set(finalX, horizonY, bezierTargetPos.z);
+                node.setPosition(bezierStartPos);
+                break;
             default:
                 // 其他类型（包括bezier）：根据atk_x和atk_y调整起始位置
                 if (moveComp.atk_x !== 0 || moveComp.atk_y !== 0) {
@@ -119,6 +133,15 @@ export class SMoveSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
                 break;
         }
     }
+
+    private resolveBezierFinalXByHorizon(startPos: Vec3, targetPos: Vec3, horizonY: number): number {
+        const deltaY = targetPos.y - startPos.y;
+        if (Math.abs(deltaY) < 0.0001) {
+            return targetPos.x;
+        }
+        const t = (horizonY - startPos.y) / deltaY;
+        return startPos.x + (targetPos.x - startPos.x) * t;
+    }
     
     update(entity: ecs.Entity): void {
         if(!smc.mission.play ) return;