+ astar project

1 files changed, 200 insertions, 0 deletions

diff --git a/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Editor/UI/WelcomeScreen.cs b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Editor/UI/WelcomeScreen.cs
new file mode 100644
index 0000000..424dad2
--- /dev/null
+++ b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Editor/UI/WelcomeScreen.cs
@@ -0,0 +1,200 @@
+using System;
+using System.Linq;
+using UnityEditor;
+using UnityEditor.SceneManagement;
+using UnityEditor.UIElements;
+using UnityEngine;
+using UnityEngine.UIElements;
+using UnityEditor.Compilation;
+using UnityEditor.Scripting.ScriptCompilation;
+
+namespace Pathfinding {
+	internal class WelcomeScreen : UnityEditor.EditorWindow {
+		[SerializeField]
+		private VisualTreeAsset m_VisualTreeAsset = default;
+
+		public bool isImportingSamples;
+		private bool askedAboutQuitting;
+
+		[InitializeOnLoadMethod]
+		public static void TryCreate () {
+			if (!PathfindingEditorSettings.instance.hasShownWelcomeScreen) {
+				// Wait a bit before showing the window to avoid stuttering
+				// as all the other windows in Unity load.
+				// This makes the animation smoother.
+				var delay = 0.5f;
+				var t0 = Time.realtimeSinceStartup;
+				EditorApplication.CallbackFunction create = null;
+				create = () => {
+					if (Time.realtimeSinceStartup - t0 > delay) {
+						EditorApplication.update -= create;
+						PathfindingEditorSettings.instance.hasShownWelcomeScreen = true;
+						PathfindingEditorSettings.instance.Save();
+						Create();
+					}
+				};
+				EditorApplication.update += create;
+			}
+		}
+
+		public static void Create () {
+			var window = GetWindow<WelcomeScreen>(
+				true,
+				"A* Pathfinding Project",
+				true
+				);
+			window.minSize = window.maxSize = new Vector2(400, 400*1.618f);
+			window.ShowUtility();
+		}
+
+
+		public void CreateGUI () {
+			VisualElement root = rootVisualElement;
+
+			VisualElement labelFromUXML = m_VisualTreeAsset.Instantiate();
+			root.Add(labelFromUXML);
+
+			var sampleButton = root.Query<Button>("importSamples").First();
+			var samplesImportedIndicator = root.Query("samplesImported").First();
+			samplesImportedIndicator.visible = GetSamples(out var sample) && sample.isImported;
+
+			sampleButton.clicked += ImportSamples;
+			root.Query<Button>("documentation").First().clicked += OpenDocumentation;
+			root.Query<Button>("getStarted").First().clicked += OpenGetStarted;
+			root.Query<Button>("changelog").First().clicked += OpenChangelog;
+			root.Query<Label>("version").First().text = "Version " + AstarPath.Version.ToString();
+			AnimateLogo(root.Query("logo").First());
+		}
+
+		static string FirstSceneToLoad = "Recast3D";
+
+		public void OnEnable () {
+			if (isImportingSamples) {
+				// This will be after the domain reload that happened after the samples were imported
+				OnPostImportedSamples();
+			}
+		}
+
+		public void OnPostImportedSamples () {
+			isImportingSamples = false;
+			// Load the example scene
+			var sample = UnityEditor.PackageManager.UI.Sample.FindByPackage("com.arongranberg.astar", "").First();
+			if (sample.isImported) {
+				var relativePath = "Assets/" + System.IO.Path.GetRelativePath(Application.dataPath, sample.importPath);
+				Debug.Log(relativePath);
+				var scenes = AssetDatabase.FindAssets("t:scene", new string[] { relativePath });
+				string bestScene = null;
+				for (int i = 0; i < scenes.Length; i++) {
+					scenes[i] = AssetDatabase.GUIDToAssetPath(scenes[i]);
+					if (scenes[i].Contains(FirstSceneToLoad)) {
+						bestScene = scenes[i];
+					}
+				}
+				if (bestScene == null) bestScene = scenes.FirstOrDefault();
+				if (bestScene != null) {
+					if (EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo()) {
+						EditorSceneManager.OpenScene(bestScene);
+					}
+				}
+			}
+		}
+
+		void AnimateLogo (VisualElement logo) {
+			var t0 = Time.realtimeSinceStartup;
+			EditorApplication.CallbackFunction introAnimation = null;
+			int ticks = 0;
+			introAnimation = () => {
+				var t = Time.realtimeSinceStartup - t0;
+				if (ticks == 1) {
+					logo.RemoveFromClassList("largeIconEntry");
+				}
+				Repaint();
+				ticks++;
+				if (ticks > 1 && t > 5) {
+					EditorApplication.update -= introAnimation;
+				}
+			};
+			EditorApplication.update += introAnimation;
+		}
+
+		bool GetSamples (out UnityEditor.PackageManager.UI.Sample sample) {
+			sample = default;
+
+			var samples = UnityEditor.PackageManager.UI.Sample.FindByPackage("com.arongranberg.astar", "");
+			if (samples == null) {
+				return false;
+			}
+			var samplesArr = samples.ToArray();
+			if (samplesArr.Length != 1) {
+				Debug.LogError("Expected exactly 1 sample. Found " + samplesArr.Length + ". This should not happen");
+				return false;
+			}
+
+			sample = samplesArr[0];
+			return true;
+		}
+
+		private void ImportSamples () {
+			if (!GetSamples(out var sample)) {
+				Debug.LogError("The A* Pathfinding Project is not installed via the Unity package manager. Cannot import samples.");
+				return;
+			}
+
+			if (sample.isImported) {
+				// Show dialog box
+				if (!EditorUtility.DisplayDialog("Import samples", "Samples are already imported. Do you want to reimport them?", "Reimport", "Cancel")) {
+					return;
+				}
+			}
+
+			isImportingSamples = true;
+
+			CompilationPipeline.assemblyCompilationFinished += OnAssemblyCompilationFinished;
+
+			if (!sample.Import(UnityEditor.PackageManager.UI.Sample.ImportOptions.OverridePreviousImports)) {
+				Debug.LogError("Failed to import samples");
+				return;
+			}
+
+			OnPostImportedSamples();
+		}
+
+		void OnAssemblyCompilationFinished (string assembly, CompilerMessage[] message) {
+			for (int i = 0; i < message.Length; i++) {
+				// E.g.
+				// error CS0006: Metadata file 'Assets/AstarPathfindingProject/Plugins/Clipper/Pathfinding.ClipperLib.dll' could not be found
+				// error CS0006: Metadata file 'Assets/AstarPathfindingProject/Plugins/DotNetZip/Pathfinding.Ionic.Zip.Reduced.dll' could not be found
+				// error CS0006: Metadata file 'Assets/AstarPathfindingProject/Plugins/Poly2Tri/Pathfinding.Poly2Tri.dll' could not be found
+				// I believe this can happen if the user previously has had the package imported into the Assets folder (e.g. version 4),
+				// and then it is imported via the package manager, and the samples imported.
+				// Unity seems to miss that the dll files now have new locations, and gets confused.
+				if (message[i].type == CompilerMessageType.Error && message[i].message.Contains("CS0006")) {
+					Debug.LogError("Compilation failed due to a Unity bug. Asking user to restart Unity.");
+
+					if (!askedAboutQuitting) {
+						if (EditorUtility.DisplayDialog("Restart Unity", "Your version of Unity has a bug that, unfortunately, requires the editor to be restarted, after importing the samples.", "Quit Unity", "Cancel")) {
+							askedAboutQuitting = true;
+							EditorApplication.update += () => {
+								if (EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo()) {
+									EditorApplication.Exit(0);
+								}
+							};
+						}
+					}
+				}
+			}
+		}
+
+		private void OpenDocumentation () {
+			Application.OpenURL(AstarUpdateChecker.GetURL("documentation"));
+		}
+
+		private void OpenGetStarted () {
+			Application.OpenURL(AstarUpdateChecker.GetURL("documentation") + "getstarted.html");
+		}
+
+		private void OpenChangelog () {
+			Application.OpenURL(AstarUpdateChecker.GetURL("changelog"));
+		}
+	}
+}