Tune tutorial coin arcs and finish flow

Assets/Scripts/PlatformSpawner.cs

@@ -84,6 +84,8 @@ public class PlatformSpawner : MonoBehaviour {
     private int courseStepIndex = 0; // 진행 중인 패턴 코스 순번
     private Platform.PlatformSkin mapPlatformSkin = Platform.PlatformSkin.Airport; // 현재 맵에서 사용할 발판 스킨
     private readonly List<PendingTutorialGuide> pendingTutorialGuides = new List<PendingTutorialGuide>(); // 실제 체험 직전에 띄울 설명들
+    private GameObject activeFinishLandingPlatform; // 도착 게이트가 공중에 뜨지 않도록 깔아두는 전용 발판
+    private bool courseSpawningStopped = false; // 도착 게이트 뒤로 새 발판/장애물이 나오지 않게 막는다.
 
     private Vector2 poolPosition = new Vector2(0, -25); // 초반에 생성된 발판들을 화면 밖에 숨겨둘 위치
     private float lastSpawnTime; // 마지막 배치 시점
@@ -100,7 +102,9 @@ public class PlatformSpawner : MonoBehaviour {
         tutorialSteps = MapDatabase.CloneSteps(mapDefinition.openingSteps);
         stagePatternSteps = MapDatabase.CloneSteps(mapDefinition.loopSteps);
         courseStepIndex = 0;
+        courseSpawningStopped = false;
         pendingTutorialGuides.Clear();
+        ClearFinishLandingPlatform();
         ResetPoolIndices();
         lastSpawnTime = Time.time;
         timeBetSpawn = 0f;
@@ -109,6 +113,46 @@ public class PlatformSpawner : MonoBehaviour {
         DeactivateAllPlatformPools();
     }
 
+    public void SpawnFinishLandingPlatform(float spawnX, float groundY) {
+        if(platformPrefab == null)
+        {
+            return;
+        }
+
+        ClearFinishLandingPlatform();
+        activeFinishLandingPlatform = Instantiate(platformPrefab, poolPosition, Quaternion.identity);
+        activeFinishLandingPlatform.SetActive(false);
+
+        TutorialStep landingStep = CreateStep(
+            Platform.PlatformPattern.Empty,
+            Platform.MileagePattern.None,
+            SlideObstaclePattern.SlideLayout.Random,
+            GameManager.TutorialGuideType.None,
+            Mathf.Clamp(groundY, yMin, yMax),
+            FallbackLandingSpacing,
+            "",
+            "",
+            Platform.ItemPattern.None,
+            CoursePlatformType.Basic);
+
+        ConfigurePlatform(activeFinishLandingPlatform, landingStep);
+        activeFinishLandingPlatform.transform.position = new Vector2(spawnX, landingStep.yPosition);
+        activeFinishLandingPlatform.SetActive(true);
+    }
+
+    public void ClearFinishLandingPlatform() {
+        if(activeFinishLandingPlatform != null)
+        {
+            Destroy(activeFinishLandingPlatform);
+            activeFinishLandingPlatform = null;
+        }
+    }
+
+    public void StopCourseSpawningAfterFinishGate() {
+        courseSpawningStopped = true;
+        pendingTutorialGuides.Clear();
+    }
+
     void Start() {
         EnsurePatternSteps();
 
@@ -205,6 +249,11 @@ public class PlatformSpawner : MonoBehaviour {
             return;
         }
 
+        if(courseSpawningStopped)
+        {
+            return;
+        }
+
         UpdatePendingTutorialGuides();
         if(GameManager.instance != null && GameManager.instance.IsTutorialGuidePaused)
         {