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Source/Editor/States/BuildingLightingState.cs

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+using FlaxEngine;
+using FlaxEngine.Assertions;
+using FlaxEngine.Utilities;
+
+namespace FlaxEditor.States
+{
+    /// <summary>
+    /// In this state engine is building static lighting for the scene. Editing scene and content is blocked.
+    /// </summary>
+    /// <seealso cref="FlaxEditor.States.EditorState" />
+    [HideInEditor]
+    public sealed class BuildingLightingState : EditorState
+    {
+        private bool _wasBuildFinished;
+
+        internal BuildingLightingState(Editor editor)
+        : base(editor)
+        {
+        }
+
+        /// <inheritdoc />
+        public override bool CanEditContent => false;
+
+        /// <inheritdoc />
+        public override bool IsPerformanceHeavy => true;
+
+        /// <inheritdoc />
+        public override string Status => "Baking lighting...";
+
+        /// <inheritdoc />
+        public override bool CanEnter()
+        {
+            return StateMachine.IsEditMode;
+        }
+
+        /// <inheritdoc />
+        public override bool CanExit(State nextState)
+        {
+            return _wasBuildFinished;
+        }
+
+        /// <inheritdoc />
+        public override void OnEnter()
+        {
+            // Clear flag
+            _wasBuildFinished = false;
+
+            // Bind event
+            Editor.LightmapsBakeEnd += OnLightmapsBakeEnd;
+
+            // Start building
+            Editor.Scene.MarkAllScenesEdited();
+            Editor.Internal_BakeLightmaps(false);
+        }
+
+        /// <inheritdoc />
+        public override void UpdateFPS()
+        {
+            Time.DrawFPS = 0;
+            Time.UpdateFPS = 0;
+            Time.PhysicsFPS = 30;
+        }
+
+        /// <inheritdoc />
+        public override void OnExit(State nextState)
+        {
+            // Unbind event
+            Editor.LightmapsBakeEnd -= OnLightmapsBakeEnd;
+        }
+
+        private void OnLightmapsBakeEnd(bool failed)
+        {
+            Assert.IsTrue(IsActive && !_wasBuildFinished);
+            _wasBuildFinished = true;
+            Editor.StateMachine.GoToState<EditingSceneState>();
+        }
+    }
+}