Initial implementation of a basic file watcher

DelvEdit/src/com/interrupt/dungeoneer/editor/EditorApplication.java

@@ -1,6 +1,7 @@
 package com.interrupt.dungeoneer.editor;
 
 import com.badlogic.gdx.*;
+import com.badlogic.gdx.Files;
 import com.badlogic.gdx.Input.Buttons;
 import com.badlogic.gdx.Input.Keys;
 import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
@@ -73,8 +74,11 @@
 import javax.swing.*;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
+import java.nio.file.*;
 import java.util.HashMap;
 
+import static java.nio.file.StandardWatchEventKinds.*;
+
 public class EditorApplication implements ApplicationListener {
 	public JFrame frame;
 
@@ -348,6 +352,8 @@ protected Decal newObject () {
 
 	Vector3 rayOutVector = new Vector3();
 
+	private Thread fileWatcher;
+
 	public EditorApplication() {
 		frame = new JFrame("DelvEdit");
 		frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
@@ -375,6 +381,8 @@ public void windowClosing(WindowEvent e) {
 		config.addIcon("icon-16.png", Files.FileType.Internal);  // 16x16 icon (Windows)
 
 		new LwjglApplication(this, config);
+
+		startFileWatcher();
 	}
 
 	public void init(){
@@ -410,6 +418,11 @@ public void dispose() {
 			gameApp.dispose();
 		}
 
+		try {
+			fileWatcher.interrupt();
+		}
+		catch (Exception ignore) {}
+
 		frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING));
 	}
 
@@ -4351,4 +4364,44 @@ private void vizualizePicking() {
 	public void setTitle(String title) {
 		Gdx.graphics.setTitle(title + " - DelvEdit");
 	}
+
+	private void startFileWatcher() {
+		// Super basic file watcher that refreshes the assets when any file changes.
+		fileWatcher = new Thread() {
+			public void run() {
+				try {
+					WatchService watchService = FileSystems.getDefault().newWatchService();
+					java.nio.file.Path path = Paths.get(Gdx.files.getLocalStoragePath());
+					path.register(watchService, ENTRY_CREATE, ENTRY_MODIFY);
+
+					boolean running = true;
+					while(running) {
+						WatchKey key = watchService.take();
+						for (WatchEvent<?> ignored : key.pollEvents()) {
+							refreshAssets();
+							break;
+						}
+
+						running = key.reset();
+					}
+				}
+				catch (Exception ignore) {}
+			}
+		};
+		fileWatcher.setPriority(Thread.MIN_PRIORITY);
+		fileWatcher.start();
+	}
+
+	private void refreshAssets() {
+		try {
+			// Give the asset a chance to finish writing.
+			Thread.sleep(125);
+
+			Art.refresh();
+			for (Entity e : level.entities) {
+				e.drawable.refresh();
+			}
+		}
+		catch (Exception ignored) {}
+	}
 }

Dungeoneer/src/com/interrupt/dungeoneer/Art.java

@@ -16,9 +16,12 @@
 import com.badlogic.gdx.math.collision.BoundingBox;
 import com.badlogic.gdx.utils.Array;
 import com.badlogic.gdx.utils.ArrayMap;
+import com.interrupt.dungeoneer.entities.Entity;
 import com.interrupt.dungeoneer.game.CachePools;
 import com.interrupt.dungeoneer.game.Game;
 import com.interrupt.dungeoneer.gfx.Bitmap;
+import com.interrupt.dungeoneer.gfx.GlRenderer;
+import com.interrupt.dungeoneer.gfx.Tesselator;
 import com.interrupt.dungeoneer.gfx.TextureAtlas;
 import com.interrupt.dungeoneer.ui.UiSkin;
 
@@ -205,4 +208,45 @@ static public void KillCache() {
 		// Might have some pooled meshes to clear
 		CachePools.clearMeshPool();
 	}
+
+	public static void refresh() {
+		try {
+			Art.KillCache();
+
+			Game.instance.loadManagers();
+			GameManager.renderer.initTextures();
+			GameManager.renderer.initShaders();
+
+			GlRenderer.staticMeshPool.resetAndDisposeAllMeshes();
+			Tesselator.tesselatorMeshPool.resetAndDisposeAllMeshes();
+
+			// reset all drawables now that we've reset stuff
+			for (Entity e : Game.GetLevel().entities) {
+				if(e.drawable != null) {
+					e.drawable.refresh();
+					e.drawable.update(e);
+				}
+			}
+			for (Entity e : Game.GetLevel().static_entities) {
+				if(e.drawable != null) {
+					e.drawable.refresh();
+					e.drawable.update(e);
+				}
+			}
+			for (Entity e : Game.GetLevel().non_collidable_entities) {
+				if(e.drawable != null) {
+					e.drawable.refresh();
+					e.drawable.update(e);
+				}
+			}
+
+			GameManager.renderer.setSize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
+			Game.GetLevel().isDirty = true;
+
+			UiSkin.loadSkin();
+		}
+		catch(Exception ex) {
+			Gdx.app.log("Delver", "Could not refresh: " + ex.getMessage());
+		}
+	}
 }

Dungeoneer/src/com/interrupt/dungeoneer/overlays/DebugOverlay.java

@@ -2,7 +2,6 @@
 
 import java.util.HashMap;
 
-import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.scenes.scene2d.Actor;
 import com.badlogic.gdx.scenes.scene2d.InputEvent;
@@ -15,16 +14,12 @@
 import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
 import com.badlogic.gdx.utils.Array;
 import com.interrupt.dungeoneer.Art;
-import com.interrupt.dungeoneer.GameManager;
 import com.interrupt.dungeoneer.entities.Entity;
 import com.interrupt.dungeoneer.entities.Item;
 import com.interrupt.dungeoneer.entities.Monster;
 import com.interrupt.dungeoneer.entities.Player;
 import com.interrupt.dungeoneer.entities.items.*;
 import com.interrupt.dungeoneer.game.Game;
-import com.interrupt.dungeoneer.gfx.GlRenderer;
-import com.interrupt.dungeoneer.gfx.Tesselator;
-import com.interrupt.dungeoneer.ui.UiSkin;
 import com.interrupt.managers.ItemManager;
 
 public class DebugOverlay extends WindowOverlay {
@@ -357,7 +352,7 @@ protected void addRefreshItem(Table table) {
 			@Override
 			public void clicked(InputEvent event, float x, float y) {
 				OverlayManager.instance.remove(thisOverlay);
-				refreshData();
+				Art.refresh();
 			}
 
 			@Override
@@ -765,46 +760,4 @@ public void clicked(InputEvent event, float x, float y) {
 
 	    return contentTable;
 	}
-
-	// Re-load all the key assets
-	public void refreshData() {
-		try {
-			Art.KillCache();
-
-			Game.instance.loadManagers();
-			GameManager.renderer.initTextures();
-			GameManager.renderer.initShaders();
-
-			GlRenderer.staticMeshPool.resetAndDisposeAllMeshes();
-			Tesselator.tesselatorMeshPool.resetAndDisposeAllMeshes();
-
-			// reset all drawables now that we've reset stuff
-			for (Entity e : Game.GetLevel().entities) {
-				if(e.drawable != null) {
-					e.drawable.refresh();
-					e.drawable.update(e);
-				}
-			}
-			for (Entity e : Game.GetLevel().static_entities) {
-				if(e.drawable != null) {
-					e.drawable.refresh();
-					e.drawable.update(e);
-				}
-			}
-			for (Entity e : Game.GetLevel().non_collidable_entities) {
-				if(e.drawable != null) {
-					e.drawable.refresh();
-					e.drawable.update(e);
-				}
-			}
-
-			GameManager.renderer.setSize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
-			Game.GetLevel().isDirty = true;
-
-			UiSkin.loadSkin();
-		}
-		catch(Exception ex) {
-			Gdx.app.log("Delver", "Could not refresh: " + ex.getMessage());
-		}
-	}
 }