chore: import upstream snapshot with attribution

2026-07-13 12:49:17 +08:00
commit 7243d5823b
2201 changed files with 257291 additions and 0 deletions
@@ -0,0 +1,32 @@
+using Newtonsoft.Json.Linq;
+using UnityEditor;
+using UnityEngine;
+using MCPForUnity.Editor.Helpers;
+
+namespace MCPForUnity.Editor.Tools.Vfx
+{
+    internal static class TrailControl
+    {
+        public static object Clear(JObject @params)
+        {
+            TrailRenderer tr = TrailRead.FindTrailRenderer(@params);
+            if (tr == null) return new { success = false, message = TrailRead.FindTrailRendererError(@params) };
+
+            Undo.RecordObject(tr, "Clear Trail");
+            tr.Clear();
+            return new { success = true, message = "Trail cleared" };
+        }
+
+        public static object Emit(JObject @params)
+        {
+            TrailRenderer tr = TrailRead.FindTrailRenderer(@params);
+            if (tr == null) return new { success = false, message = TrailRead.FindTrailRendererError(@params) };
+
+            RendererHelpers.EnsureMaterial(tr);
+
+            Vector3 pos = ManageVfxCommon.ParseVector3(@params["position"]);
+            tr.AddPosition(pos);
+            return new { success = true, message = $"Emitted at ({pos.x}, {pos.y}, {pos.z})" };
+        }
+    }
+}