54 lines
1.6 KiB
C#
54 lines
1.6 KiB
C#
using AibisDream.Utility;
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using UnityEngine;
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namespace AibisDream.SaveSystem
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{
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/// <summary>
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/// 存档槽位缩略图捕获工具。
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/// <para>
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/// 使用主相机渲染到 RenderTexture 后读像素并编码为 PNG。
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/// 捕获失败时安全返回 null，不会阻塞存档流程。
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/// </para>
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/// </summary>
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public static class SlotThumbnailCapture
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{
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/// <summary>捕获当前画面的 PNG 字节数组；禁用时返回 null，不阻塞存档流程。</summary>
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public static byte[] CapturePng()
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{
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if (!ConstRef.SaveThumbnailEnabled)
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{
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return null;
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}
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var cam = Camera.main;
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if (cam == null)
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{
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Debug.LogWarning("[SlotThumbnailCapture] 未找到 Camera.main，跳过截图。");
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return null;
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}
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var width = ConstRef.SaveThumbnailWidth;
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var height = ConstRef.SaveThumbnailHeight;
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var rt = RenderTexture.GetTemporary(width, height, 24, RenderTextureFormat.Default);
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var prevTarget = cam.targetTexture;
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cam.targetTexture = rt;
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cam.Render();
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cam.targetTexture = prevTarget;
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RenderTexture.active = rt;
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var tex = new Texture2D(width, height, TextureFormat.RGB24, false);
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tex.ReadPixels(new Rect(0, 0, width, height), 0, 0);
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tex.Apply();
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RenderTexture.active = null;
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var bytes = tex.EncodeToPNG();
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Object.Destroy(tex);
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RenderTexture.ReleaseTemporary(rt);
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return bytes;
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}
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}
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}
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