Multi Realm Background Shader

Author: cev-api

src/main/java/net/wurstclient/WurstClient.java

@@ -49,6 +49,7 @@
 import net.wurstclient.util.SetbackDetector;
 import net.wurstclient.util.ServerObserver;
 import net.wurstclient.util.HackToggleFeedback;
+import net.wurstclient.util.TitleBackgroundModeManager;
 import net.wurstclient.util.timer.TimerManager;
 import net.wurstclient.util.json.JsonException;
 import net.wurstclient.nicewurst.NiceWurstModule;
@@ -156,6 +157,7 @@ public void initialize()
 		settingsProfileFolder = wurstFolder.resolve("settings");
 		this.settingsFile = new SettingsFile(settingsFile, hax, cmds, otfs);
 		this.settingsFile.load();
+		TitleBackgroundModeManager.advanceForStartup();
 		hax.tooManyHaxHack.loadBlockedHacksFile();
 		otfs.hackListOtf.loadHiddenHacksFile();
 

src/main/java/net/wurstclient/options/WurstOptionsScreen.java

@@ -42,6 +42,7 @@
 import net.wurstclient.util.ChatUtils;
 import net.wurstclient.util.ColorUtils;
 import net.wurstclient.util.LastServerRememberer;
+import net.wurstclient.util.TitleBackgroundModeManager;
 import net.wurstclient.util.WurstColors;
 import net.wurstclient.clickgui.screens.EditColorScreen;
 
@@ -215,8 +216,12 @@ private void addCoreSection()
 			() -> "Shadertoy Background: "
 				+ onOff(titleScreenShadertoyBackground.isChecked()),
 			"Render a Shadertoy-style animated background behind the title screen.",
-			b -> titleScreenShadertoyBackground
-				.setChecked(!titleScreenShadertoyBackground.isChecked()));
+			b -> {
+				boolean wasEnabled = titleScreenShadertoyBackground.isChecked();
+				titleScreenShadertoyBackground.setChecked(!wasEnabled);
+				if(!wasEnabled)
+					TitleBackgroundModeManager.advanceForEnableToggle();
+			});
 
 		addButton(column, () -> "Import Shadertoy",
 			"Import a Shadertoy by URL or pasted source code as the menu background.",

src/main/java/net/wurstclient/util/TitleBackgroundModeManager.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2014-2026 Wurst-Imperium and contributors.
+ *
+ * This source code is subject to the terms of the GNU General Public
+ * License, version 3. If a copy of the GPL was not distributed with this
+ * file, You can obtain one at: https://www.gnu.org/licenses/gpl-3.0.txt
+ */
+package net.wurstclient.util;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import net.minecraft.resources.Identifier;
+import net.wurstclient.WurstClient;
+
+public enum TitleBackgroundModeManager
+{
+	;
+	
+	private static final Path MODE_FILE = WurstClient.INSTANCE.getWurstFolder()
+		.resolve("title-background-mode.txt");
+	private static Mode currentMode = loadModeFromDisk();
+	
+	public static void advanceForStartup()
+	{
+		currentMode = currentMode.next();
+		saveModeToDisk();
+	}
+	
+	public static void advanceForEnableToggle()
+	{
+		currentMode = currentMode.next();
+		saveModeToDisk();
+	}
+	
+	public static Mode getCurrentMode()
+	{
+		return currentMode;
+	}
+	
+	private static Mode loadModeFromDisk()
+	{
+		if(!Files.isRegularFile(MODE_FILE))
+			return Mode.END;
+		
+		try
+		{
+			String value =
+				Files.readString(MODE_FILE, StandardCharsets.UTF_8).trim();
+			return Mode.valueOf(value);
+		}catch(Exception e)
+		{
+			return Mode.END;
+		}
+	}
+	
+	private static void saveModeToDisk()
+	{
+		try
+		{
+			Files.writeString(MODE_FILE, currentMode.name(),
+				StandardCharsets.UTF_8);
+		}catch(IOException e)
+		{
+			throw new RuntimeException("Failed to save title background mode.",
+				e);
+		}
+	}
+	
+	public enum Mode
+	{
+		OVERWORLD("wurst:textures/shader_blocks_overworld.png", 0),
+		NETHER("wurst:textures/shader_blocks_nether.png", 1),
+		END("wurst:textures/shader_blocks_end.png", 2);
+		
+		private final Identifier atlasId;
+		private final int shaderIndex;
+		
+		private Mode(String atlasId, int shaderIndex)
+		{
+			this.atlasId = Identifier.parse(atlasId);
+			this.shaderIndex = shaderIndex;
+		}
+		
+		public Identifier getAtlasId()
+		{
+			return atlasId;
+		}
+		
+		public int getShaderIndex()
+		{
+			return shaderIndex;
+		}
+		
+		public Mode next()
+		{
+			return values()[(ordinal() + 1) % values().length];
+		}
+	}
+}

src/main/java/net/wurstclient/util/TitleScreenBackgroundRenderer.java

@@ -14,30 +14,29 @@
 import net.minecraft.client.gui.render.TextureSetup;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.texture.AbstractTexture;
-import net.minecraft.resources.Identifier;
 import net.wurstclient.TitleScreenShaderPipelines;
+import net.wurstclient.util.TitleBackgroundModeManager.Mode;
 
 public enum TitleScreenBackgroundRenderer
 {
 	;
 
-	private static final Identifier BLOCK_ATLAS =
-		Identifier.parse("wurst:textures/shader_blocks.png");
-	
 	public static void addBackground(GuiGraphicsExtractor context, int width,
 		int height)
 	{
 		Matrix3x2f pose = new Matrix3x2f();
 		ScreenRectangle bounds = new ScreenRectangle(0, 0, width, height);
+		Mode mode = TitleBackgroundModeManager.getCurrentMode();
 		int time = (int)((System.currentTimeMillis() / 50L) & 0xFFFF);
-		int timeColor = 0xFF0000FF | ((time >> 8) << 16) | ((time & 0xFF) << 8);
-		AbstractTexture texture =
-			Minecraft.getInstance().getTextureManager().getTexture(BLOCK_ATLAS);
+		int packedColor = 0xFF000000 | ((time >> 8) << 16)
+			| ((time & 0xFF) << 8) | (mode.getShaderIndex() & 0xFF);
+		AbstractTexture texture = Minecraft.getInstance().getTextureManager()
+			.getTexture(mode.getAtlasId());
 		context.guiRenderState.addGuiElement(new CustomQuadRenderState(
 			TitleScreenShaderPipelines.TITLE_SHADERTOY_BACKGROUND,
 			TextureSetup.singleTexture(texture.getTextureView(),
 				texture.getSampler()),
-			pose, -1, -1, 1, -1, 1, 1, -1, 1, timeColor, timeColor, timeColor,
-			timeColor, null, bounds));
+			pose, -1, -1, 1, -1, 1, 1, -1, 1, packedColor, packedColor,
+			packedColor, packedColor, null, bounds));
 	}
 }