From dab4fe776ccd52a5251115060ac8b18b5a167df8 Mon Sep 17 00:00:00 2001
From: Nao Pross <naopross@thearcway.org>
Date: Sat, 24 Nov 2018 19:25:07 +0100
Subject: Add dynamic widgets (update on every gameloop tick)

---
 src/subconscious/graphics/Scene.java          | 25 ++++++++++++++++++++++---
 src/subconscious/graphics/widget/Dynamic.java |  5 +++++
 2 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 src/subconscious/graphics/widget/Dynamic.java

diff --git a/src/subconscious/graphics/Scene.java b/src/subconscious/graphics/Scene.java
index 7e67490..f1a947d 100644
--- a/src/subconscious/graphics/Scene.java
+++ b/src/subconscious/graphics/Scene.java
@@ -4,6 +4,7 @@ import subconscious.Game;
 
 import subconscious.graphics.widget.Widget;
 import subconscious.graphics.widget.Clickable;
+import subconscious.graphics.widget.Dynamic;
 
 import java.util.ArrayList;
 import java.util.Map;
@@ -57,6 +58,8 @@ public abstract class Scene extends Panel
 	);
 
 	protected ArrayList<Widget> widgets = new ArrayList<>();
+	protected ArrayList<Widget> dynamicWidgetsCache = new ArrayList<>();
+	// protected ArrayList<Widget> clickableWidgetsCache = new ArrayList<>();
 
 	// Game is never cached in the local thread
 	protected volatile Game game;
@@ -99,6 +102,12 @@ public abstract class Scene extends Panel
 		// TODO: solve canvas
 		// this.add(this.canvas, BorderLayout.CENTER);
 		this.build();
+
+		for (Widget w : this.widgets) {
+			if (w instanceof Dynamic) {
+				this.dynamicWidgetsCache.add(w);
+			}
+		}
 	}
 
 	public Scene(Game game) {
@@ -114,6 +123,12 @@ public abstract class Scene extends Panel
 	protected abstract void update(long deltaNanoTime);
 	protected abstract void render(Graphics2D g);
 
+	protected void updateWidgets(long deltaNanoTime) {
+		for (Widget w : this.dynamicWidgetsCache) {
+			((Dynamic) w).update(deltaNanoTime);
+		}
+	}
+
 	protected void renderWidgets(Graphics2D g) {
 		for (Widget w : this.widgets) {
 			Graphics2D widgetGraphics = (Graphics2D) g.create(
@@ -161,6 +176,7 @@ public abstract class Scene extends Panel
 		long currentUpdateTime = System.nanoTime();
 		long lastUpdateTime;
 		long deltaLoop;
+		long gameDeltaTime;
 
 		this.running = true;
 		this.threadPaused = false;
@@ -207,9 +223,12 @@ public abstract class Scene extends Panel
 			lastUpdateTime = currentUpdateTime;
 			currentUpdateTime = System.nanoTime();
 
-			// TODO: change to this.game.update(...)
-			this.update(currentUpdateTime - lastUpdateTime);
-			this.game.update(currentUpdateTime - lastUpdateTime);
+			gameDeltaTime = currentUpdateTime - lastUpdateTime;
+
+			// TODO: remove Scene.update?
+			this.update(gameDeltaTime);
+			this.updateWidgets(gameDeltaTime);
+			this.game.update(gameDeltaTime);
 
 			endLoopTime = System.nanoTime();
 			deltaLoop = endLoopTime - beginLoopTime;
diff --git a/src/subconscious/graphics/widget/Dynamic.java b/src/subconscious/graphics/widget/Dynamic.java
new file mode 100644
index 0000000..ca0029a
--- /dev/null
+++ b/src/subconscious/graphics/widget/Dynamic.java
@@ -0,0 +1,5 @@
+package subconscious.graphics.widget;
+
+public interface Dynamic {
+	public void update(long deltaNanoTime);
+}
\ No newline at end of file
-- 
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