Add mileage pickups and duty free concept

Assets/Scripts/GameManager.cs

@@ -13,8 +13,16 @@ public class GameManager : MonoBehaviour {
 
     private int score = 0; // 게임 점수
     private int currentLife; // 현재 남은 목숨
+    private int stageMileage = 0; // 현재 플레이 중 획득한 마일리지
+    private int totalMileage = 0; // 누적 보유 마일리지
 
     public int maxLife = 3; // 시작 목숨
+    public int initialMileage = 500; // 첫 시작시 지급할 초기 마일리지
+    public bool grantInitialMileage = true; // 초기 마일리지 지급 여부
+    public bool saveMileageImmediately = true; // 스테이지 정산 전까지는 획득 즉시 누적한다.
+
+    private const string TotalMileageKey = "UniRun.TotalMileage";
+    private const string InitialMileageGrantedKey = "UniRun.InitialMileageGranted";
 
     // 게임의 스피드를 올리는 변수
     public float gameSpeed = 1f;
@@ -44,6 +52,16 @@ public class GameManager : MonoBehaviour {
 
     private void Start() {
         currentLife = maxLife;
+        totalMileage = PlayerPrefs.GetInt(TotalMileageKey, 0);
+
+        if(grantInitialMileage && PlayerPrefs.GetInt(InitialMileageGrantedKey, 0) == 0)
+        {
+            totalMileage += initialMileage;
+            PlayerPrefs.SetInt(TotalMileageKey, totalMileage);
+            PlayerPrefs.SetInt(InitialMileageGrantedKey, 1);
+            PlayerPrefs.Save();
+        }
+
         UpdateScoreUI();
     }
 
@@ -75,6 +93,26 @@ public class GameManager : MonoBehaviour {
         
     }
 
+    // 마일리지 토큰을 먹었을 때 호출되는 메서드
+    public void AddMileage(int amount) {
+        if(isGameover)
+        {
+            return;
+        }
+
+        stageMileage += amount;
+        score += Mathf.Max(1, amount / 10);
+
+        if(saveMileageImmediately)
+        {
+            totalMileage += amount;
+            PlayerPrefs.SetInt(TotalMileageKey, totalMileage);
+            PlayerPrefs.Save();
+        }
+
+        UpdateScoreUI();
+    }
+
     // 플레이어가 장애물에 부딪혔을 때 목숨과 속도를 줄이는 메서드
     public bool TakeDamage(int damage = 1) {
         if(isGameover)
@@ -100,6 +138,10 @@ public class GameManager : MonoBehaviour {
     }
 
     private void UpdateScoreUI() {
-        scoreText.text = "Score : " + score + "\nLife : " + currentLife + "/" + maxLife + "\nSpeed : " + gameSpeed.ToString("0.0");
+        scoreText.text = "Score : " + score
+            + "\nLife : " + currentLife + "/" + maxLife
+            + "\nMileage : " + stageMileage
+            + "\nTotal : " + totalMileage
+            + "\nSpeed : " + gameSpeed.ToString("0.0");
     }
 }

Assets/Scripts/MileagePickup.cs

@@ -0,0 +1,55 @@
+using UnityEngine;
+
+// 플레이어가 먹을 수 있는 마일리지 토큰
+public class MileagePickup : MonoBehaviour
+{
+    public int mileageValue = 10; // 획득 마일리지
+
+    private bool collected = false; // 이미 획득했는지 여부
+    private SpriteRenderer spriteRenderer;
+    private Collider2D pickupCollider;
+
+    private void Awake()
+    {
+        spriteRenderer = GetComponent<SpriteRenderer>();
+        pickupCollider = GetComponent<Collider2D>();
+    }
+
+    public void Setup(Sprite sprite, int value)
+    {
+        mileageValue = value;
+
+        if(spriteRenderer != null)
+        {
+            spriteRenderer.sprite = sprite;
+        }
+    }
+
+    public void ResetPickup()
+    {
+        collected = false;
+        gameObject.SetActive(true);
+
+        if(pickupCollider != null)
+        {
+            pickupCollider.enabled = true;
+        }
+    }
+
+    private void OnTriggerEnter2D(Collider2D other)
+    {
+        if(collected || !other.CompareTag("Player"))
+        {
+            return;
+        }
+
+        collected = true;
+
+        if(GameManager.instance != null)
+        {
+            GameManager.instance.AddMileage(mileageValue);
+        }
+
+        gameObject.SetActive(false);
+    }
+}

Assets/Scripts/MileagePickup.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d68f1d3b0a9e4aef9b0a6d8f9c2e1a44
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData:
+  assetBundleName:
+  assetBundleVariant:

Assets/Scripts/Platform.cs

@@ -1,34 +1,49 @@
-using UnityEngine;
+using UnityEngine;
 
 // 발판으로서 필요한 동작을 담은 스크립트
 public class Platform : MonoBehaviour {
     public GameObject[] obstacles; // 장애물 오브젝트들
     public int emptyPatternWeight = 2; // 장애물이 없는 패턴이 선택될 가중치
+    public Sprite mileageSprite; // 이 발판에서 사용할 마일리지 토큰 스프라이트
+    public int mileagePatternChance = 50; // 마일리지 패턴 등장 확률
+    public int smallMileageValue = 10; // 일반 토큰 가치
+    public int bonusMileageValue = 30; // 어려운 루트 보너스 토큰 가치
+
     private bool stepped = false; // 플레이어 캐릭터가 밟았었는가
+    private MileagePickup[] mileagePickups; // 런타임에 생성하는 마일리지 토큰 풀
+    private const int MileagePoolSize = 5;
 
     // 컴포넌트가 활성화될때 마다 매번 실행되는 메서드
     private void OnEnable() {
         // 발판을 리셋하는 처리
 
         stepped = false;
+        EnsureMileagePickups();
 
         for(int i = 0; i < obstacles.Length; i++)
         {
             obstacles[i].SetActive(false);
         }
 
+        HideMileagePickups();
+
         if(obstacles.Length == 0)
         {
+            TryPlaceMileagePattern(null);
             return;
         }
 
         // 낮은 장애물과 높은 장애물이 동시에 켜져 불가능한 배치가 되지 않도록 하나만 선택한다.
         int patternIndex = Random.Range(0, obstacles.Length + emptyPatternWeight);
+        GameObject activeObstacle = null;
 
         if(patternIndex < obstacles.Length)
         {
-            obstacles[patternIndex].SetActive(true);
+            activeObstacle = obstacles[patternIndex];
+            activeObstacle.SetActive(true);
         }
+
+        TryPlaceMileagePattern(activeObstacle);
     }
 
     void OnCollisionEnter2D(Collision2D collision) {
@@ -39,4 +54,127 @@ public class Platform : MonoBehaviour {
             GameManager.instance.AddScore(1);
         }
     }
+
+    private void EnsureMileagePickups() {
+        if(mileagePickups != null && mileagePickups.Length == MileagePoolSize)
+        {
+            return;
+        }
+
+        mileagePickups = new MileagePickup[MileagePoolSize];
+
+        for(int i = 0; i < MileagePoolSize; i++)
+        {
+            GameObject pickupObject = new GameObject("Mileage Pickup " + (i + 1));
+            pickupObject.transform.SetParent(transform);
+            pickupObject.transform.localScale = Vector3.one;
+
+            SpriteRenderer spriteRenderer = pickupObject.AddComponent<SpriteRenderer>();
+            spriteRenderer.sprite = mileageSprite;
+            spriteRenderer.sortingLayerName = "Foreground";
+            spriteRenderer.sortingOrder = 1;
+
+            CircleCollider2D pickupCollider = pickupObject.AddComponent<CircleCollider2D>();
+            pickupCollider.isTrigger = true;
+            pickupCollider.radius = 0.35f;
+
+            mileagePickups[i] = pickupObject.AddComponent<MileagePickup>();
+            mileagePickups[i].Setup(mileageSprite, smallMileageValue);
+
+            pickupObject.SetActive(false);
+        }
+    }
+
+    private void HideMileagePickups() {
+        if(mileagePickups == null)
+        {
+            return;
+        }
+
+        for(int i = 0; i < mileagePickups.Length; i++)
+        {
+            if(mileagePickups[i] != null)
+            {
+                mileagePickups[i].gameObject.SetActive(false);
+            }
+        }
+    }
+
+    private void TryPlaceMileagePattern(GameObject activeObstacle) {
+        if(mileageSprite == null || mileagePickups == null || Random.Range(0, 100) >= mileagePatternChance)
+        {
+            return;
+        }
+
+        if(activeObstacle == null)
+        {
+            PlaceSafeMileageLine();
+            return;
+        }
+
+        if(activeObstacle.name.Contains("Slide"))
+        {
+            PlaceSlideMileageLine();
+        }
+        else
+        {
+            PlaceJumpMileageArc(activeObstacle.transform.localPosition.x);
+        }
+    }
+
+    private void PlaceSafeMileageLine() {
+        Vector2[] positions = {
+            new Vector2(-2f, 2.25f),
+            new Vector2(-1f, 2.25f),
+            new Vector2(0f, 2.25f),
+            new Vector2(1f, 2.25f),
+            new Vector2(2f, 2.25f)
+        };
+
+        PlaceMileageTokens(positions, smallMileageValue);
+    }
+
+    private void PlaceJumpMileageArc(float obstacleX) {
+        Vector2[] positions = {
+            new Vector2(obstacleX - 1.2f, 2.7f),
+            new Vector2(obstacleX, 3.45f),
+            new Vector2(obstacleX + 1.2f, 2.7f),
+            new Vector2(obstacleX + 1.9f, 2.25f)
+        };
+
+        PlaceMileageTokens(positions, smallMileageValue);
+        SetPickupValue(1, bonusMileageValue);
+    }
+
+    private void PlaceSlideMileageLine() {
+        Vector2[] positions = {
+            new Vector2(-1.5f, 1.45f),
+            new Vector2(-0.5f, 1.45f),
+            new Vector2(0.5f, 1.45f),
+            new Vector2(1.5f, 1.45f)
+        };
+
+        PlaceMileageTokens(positions, smallMileageValue);
+        SetPickupValue(2, bonusMileageValue);
+    }
+
+    private void PlaceMileageTokens(Vector2[] positions, int value) {
+        int count = Mathf.Min(positions.Length, mileagePickups.Length);
+
+        for(int i = 0; i < count; i++)
+        {
+            mileagePickups[i].Setup(mileageSprite, value);
+            mileagePickups[i].transform.localPosition = positions[i];
+            mileagePickups[i].ResetPickup();
+        }
+    }
+
+    private void SetPickupValue(int index, int value) {
+        if(index < 0 || index >= mileagePickups.Length || !mileagePickups[index].gameObject.activeSelf)
+        {
+            return;
+        }
+
+        mileagePickups[index].Setup(mileageSprite, value);
+    }
 }