feat : add Level01IntroSubtitles script for intro subtitle sequence

Assets/Code/Scripts/Level.meta

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+guid: 2e7b9c54377674993a7922f84e9cfcce
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Code/Scripts/Level/Level01IntroSubtitles.cs

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+using System.Collections;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+/// <summary>
+/// Auto-spawns in Level01 and displays an intro subtitle sequence.
+/// </summary>
+public class Level01IntroSubtitles : MonoBehaviour
+{
+    [System.Serializable]
+    private struct SubtitleLine
+    {
+        public string speaker;
+        public string text;
+        public float duration;
+    }
+
+    [Header("Trigger")]
+    [SerializeField] private string targetSceneName = "Level01";
+    [SerializeField] private float initialDelay = 2.5f;
+
+    [Header("Subtitle Sequence")]
+    [SerializeField] private SubtitleLine[] lines =
+    {
+        new SubtitleLine { speaker = "SYSTEME", text = "...Ici, quelque chose cloche.", duration = 2.5f },
+        new SubtitleLine { speaker = "SYSTEME", text = "Reste calme. Observe la piece.", duration = 2.5f },
+        new SubtitleLine { speaker = "SYSTEME", text = "Trouve une sortie.", duration = 2.2f },
+    };
+
+    [SerializeField] private float typewriterCharsPerSecond = 40f;
+    [SerializeField] private float fadeDuration = 0.2f;
+    [SerializeField] private float gapBetweenLines = 0.15f;
+
+    [Header("Visual")]
+    [SerializeField] private int fontSize = 28;
+    [SerializeField] private int speakerFontSize = 18;
+    [SerializeField] private float horizontalPadding = 28f;
+    [SerializeField] private float bottomOffset = 56f;
+    [SerializeField] private Color textColor = new Color(1f, 1f, 1f, 1f);
+    [SerializeField] private Color speakerColor = new Color(1f, 0.85f, 0.35f, 1f);
+    [SerializeField] private Color backgroundColor = new Color(0f, 0f, 0f, 0.62f);
+
+    private static bool s_bootstrapped;
+
+    private string m_currentSpeaker;
+    private string m_currentText;
+    private GUIStyle m_textStyle;
+    private GUIStyle m_speakerStyle;
+    private Texture2D m_background;
+    private bool m_isShowing;
+    private float m_alpha;
+
+    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+    private static void ResetBootstrapFlag()
+    {
+        s_bootstrapped = false;
+    }
+
+    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterSceneLoad)]
+    private static void Bootstrap()
+    {
+        if (s_bootstrapped)
+            return;
+
+        s_bootstrapped = true;
+
+        GameObject go = new GameObject(nameof(Level01IntroSubtitles));
+        go.hideFlags = HideFlags.DontSave;
+        go.AddComponent<Level01IntroSubtitles>();
+    }
+
+    private void Start()
+    {
+        Scene activeScene = SceneManager.GetActiveScene();
+        if (activeScene.name != targetSceneName)
+        {
+            Destroy(gameObject);
+            return;
+        }
+
+        StartCoroutine(PlaySequence());
+    }
+
+    private IEnumerator PlaySequence()
+    {
+        if (initialDelay > 0f)
+            yield return new WaitForSeconds(initialDelay);
+
+        for (int i = 0; i < lines.Length; i++)
+        {
+            if (string.IsNullOrWhiteSpace(lines[i].text) || lines[i].duration <= 0f)
+                continue;
+
+            yield return StartCoroutine(ShowLine(lines[i]));
+
+            if (gapBetweenLines > 0f)
+                yield return new WaitForSeconds(gapBetweenLines);
+        }
+
+        m_currentSpeaker = string.Empty;
+        m_currentText = string.Empty;
+        Destroy(gameObject);
+    }
+
+    private IEnumerator ShowLine(SubtitleLine line)
+    {
+        m_currentSpeaker = line.speaker;
+        m_currentText = string.Empty;
+        m_isShowing = true;
+
+        if (fadeDuration > 0f)
+        {
+            float fadeIn = 0f;
+            while (fadeIn < fadeDuration)
+            {
+                fadeIn += Time.deltaTime;
+                m_alpha = Mathf.Clamp01(fadeIn / fadeDuration);
+                yield return null;
+            }
+        }
+        else
+        {
+            m_alpha = 1f;
+        }
+
+        float typeTime = 0f;
+        int totalChars = line.text.Length;
+        if (typewriterCharsPerSecond > 0f)
+        {
+            while (m_currentText.Length < totalChars)
+            {
+                typeTime += Time.deltaTime;
+                int visibleChars = Mathf.Clamp(Mathf.FloorToInt(typeTime * typewriterCharsPerSecond), 0, totalChars);
+                m_currentText = line.text.Substring(0, visibleChars);
+                yield return null;
+            }
+        }
+        else
+        {
+            m_currentText = line.text;
+        }
+
+        float holdDuration = Mathf.Max(0f, line.duration - (typewriterCharsPerSecond > 0f ? typeTime : 0f));
+        if (holdDuration > 0f)
+            yield return new WaitForSeconds(holdDuration);
+
+        if (fadeDuration > 0f)
+        {
+            float fadeOut = fadeDuration;
+            while (fadeOut > 0f)
+            {
+                fadeOut -= Time.deltaTime;
+                m_alpha = Mathf.Clamp01(fadeOut / fadeDuration);
+                yield return null;
+            }
+        }
+
+        m_alpha = 0f;
+        m_isShowing = false;
+    }
+
+    private void OnGUI()
+    {
+        if (!m_isShowing || string.IsNullOrEmpty(m_currentText))
+            return;
+
+        EnsureStyles();
+
+        float maxWidth = Mathf.Min(Screen.width - 24f, 940f);
+        float textWidth = maxWidth - horizontalPadding * 2f;
+        float speakerHeight = string.IsNullOrEmpty(m_currentSpeaker)
+            ? 0f
+            : m_speakerStyle.CalcHeight(new GUIContent(m_currentSpeaker), textWidth);
+        float textHeight = m_textStyle.CalcHeight(new GUIContent(string.IsNullOrEmpty(m_currentText) ? " " : m_currentText), textWidth);
+
+        float boxWidth = maxWidth;
+        float boxHeight = speakerHeight + textHeight + 28f;
+        float boxX = (Screen.width - boxWidth) * 0.5f;
+        float boxY = Screen.height - bottomOffset - boxHeight;
+
+        Rect boxRect = new Rect(boxX, boxY, boxWidth, boxHeight);
+        Color previousColor = GUI.color;
+        GUI.color = new Color(1f, 1f, 1f, m_alpha);
+        GUI.DrawTexture(boxRect, m_background);
+
+        float yOffset = boxRect.y + 10f;
+        if (!string.IsNullOrEmpty(m_currentSpeaker))
+        {
+            Rect speakerRect = new Rect(
+                boxRect.x + horizontalPadding,
+                yOffset,
+                textWidth,
+                speakerHeight);
+            GUI.Label(speakerRect, m_currentSpeaker, m_speakerStyle);
+            yOffset += speakerHeight + 2f;
+        }
+
+        Rect textRect = new Rect(
+            boxRect.x + horizontalPadding,
+            yOffset,
+            textWidth,
+            textHeight);
+
+        GUI.Label(textRect, m_currentText, m_textStyle);
+        GUI.color = previousColor;
+    }
+
+    private void EnsureStyles()
+    {
+        if (m_textStyle != null)
+            return;
+
+        m_background = new Texture2D(1, 1);
+        m_background.SetPixel(0, 0, backgroundColor);
+        m_background.Apply();
+
+        m_textStyle = new GUIStyle(GUI.skin.label)
+        {
+            alignment = TextAnchor.MiddleCenter,
+            fontSize = fontSize,
+            wordWrap = true,
+            richText = false,
+            clipping = TextClipping.Clip,
+        };
+        m_textStyle.normal.textColor = textColor;
+
+        m_speakerStyle = new GUIStyle(GUI.skin.label)
+        {
+            alignment = TextAnchor.MiddleCenter,
+            fontSize = speakerFontSize,
+            fontStyle = FontStyle.Bold,
+            wordWrap = false,
+            clipping = TextClipping.Clip,
+        };
+        m_speakerStyle.normal.textColor = speakerColor;
+
+    }
+
+    private void OnDestroy()
+    {
+        if (m_background != null)
+            Destroy(m_background);
+    }
+}

Assets/Code/Scripts/Level/Level01IntroSubtitles.cs.meta

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+fileFormatVersion: 2
+guid: a315c9c77ad8a49238033181ece48806