textures with fallback

src/main/java/de/hysky/skyblocker/skyblock/auction/AuctionBrowserScreen.java

@@ -108,7 +108,7 @@ protected void init() {
 
 		if (categoryTabWidgets.isEmpty())
 			for (int i = 0; i < 6; i++) {
-				CategoryTabWidget categoryTabWidget = new CategoryTabWidget(new ItemStack(Items.SPONGE), this::clickSlot);
+				CategoryTabWidget categoryTabWidget = new CategoryTabWidget(new ItemStack(Items.SPONGE), this::clickSlot, i);
 				categoryTabWidgets.add(categoryTabWidget);
 				addWidget(categoryTabWidget); // This method only makes it clickable, does not add it to the drawables list
 				// manually rendered in the render method to have it not render behind the durability bars

src/main/java/de/hysky/skyblocker/skyblock/auction/widgets/CategoryTabWidget.java

@@ -1,20 +1,38 @@
 package de.hysky.skyblocker.skyblock.auction.widgets;
 
+import de.hysky.skyblocker.SkyblockerMod;
 import de.hysky.skyblocker.skyblock.auction.SlotClickHandler;
 import de.hysky.skyblocker.utils.render.gui.SideTabButtonWidget;
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiGraphics;
+import net.minecraft.client.gui.components.WidgetSprites;
+import net.minecraft.client.gui.screens.recipebook.RecipeBookTabButton;
 import net.minecraft.client.input.MouseButtonEvent;
 import net.minecraft.world.item.Item.TooltipContext;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.TooltipFlag;
+import org.jspecify.annotations.Nullable;
 
 public class CategoryTabWidget extends SideTabButtonWidget {
+	@SuppressWarnings("unchecked")
+	private static final @Nullable FallbackedTexture<WidgetSprites>[] SPRITES = new FallbackedTexture[6];
 	private final SlotClickHandler slotClick;
 	private int slotId = -1;
 
-	public CategoryTabWidget(ItemStack icon, SlotClickHandler slotClick) {
-		super(0, 0, false, icon);
+	private static WidgetSprites getSprites(int index) {
+		FallbackedTexture<WidgetSprites> sprite = SPRITES[index];
+		if (sprite == null) return (SPRITES[index] = FallbackedTexture.ofWidgetSprites(
+				new WidgetSprites(
+						SkyblockerMod.id("auctions_gui/category_tab_" + (index + 1)),
+						SkyblockerMod.id("auctions_gui/category_tab_selected" + (index + 1))
+				),
+				RecipeBookTabButton.SPRITES)).get();
+		return sprite.get();
+	}
+
+	public CategoryTabWidget(ItemStack icon, SlotClickHandler slotClick, int id) {
+		super(0, 0, false, getSprites(id), icon);
 		this.slotClick = slotClick;
 	}
 

src/main/java/de/hysky/skyblocker/skyblock/dungeon/partyfinder/PartyFinderScreen.java

@@ -6,6 +6,7 @@
 import de.hysky.skyblocker.annotations.Init;
 import de.hysky.skyblocker.debug.Debug;
 import de.hysky.skyblocker.utils.ItemUtils;
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
 import net.minecraft.ChatFormatting;
 import net.minecraft.client.Minecraft;
@@ -46,7 +47,9 @@
 
 public class PartyFinderScreen extends Screen {
 	protected static final Logger LOGGER = LoggerFactory.getLogger(PartyFinderScreen.class);
-	protected static final Identifier BACKGROUND_TEXTURE = Identifier.withDefaultNamespace("social_interactions/background");
+	protected static final FallbackedTexture<Identifier> BACKGROUND_TEXTURE = FallbackedTexture.ofGuiSprite(
+			SkyblockerMod.id("party_finder/background"),
+			Identifier.withDefaultNamespace("social_interactions/background"));
 	protected static final Identifier SEARCH_ICON_TEXTURE = Identifier.withDefaultNamespace("icon/search");
 	protected static final Component SEARCH_TEXT = Component.translatable("gui.socialInteractions.search_hint").withStyle(ChatFormatting.ITALIC).withStyle(ChatFormatting.GRAY);
 	public static boolean isInKuudraPartyFinder = false;
@@ -284,7 +287,7 @@ public void render(GuiGraphics context, int mouseX, int mouseY, float delta) {
 	public void renderBackground(GuiGraphics context, int mouseX, int mouseY, float delta) {
 		this.renderTransparentBackground(context);
 		int i = partyEntryListWidget.getRowWidth() + 16 + 6;
-		context.blitSprite(RenderPipelines.GUI_TEXTURED, BACKGROUND_TEXTURE, partyEntryListWidget.getRowLeft() - 8, partyEntryListWidget.getY() - 12 - 8, i, partyEntryListWidget.getBottom() - partyEntryListWidget.getY() + 16 + 12);
+		context.blitSprite(RenderPipelines.GUI_TEXTURED, BACKGROUND_TEXTURE.get(), partyEntryListWidget.getRowLeft() - 8, partyEntryListWidget.getY() - 12 - 8, i, partyEntryListWidget.getBottom() - partyEntryListWidget.getY() + 16 + 12);
 	}
 
 	@Override

src/main/java/de/hysky/skyblocker/skyblock/item/SkyblockCraftingTableScreen.java

@@ -3,6 +3,8 @@
 import de.hysky.skyblocker.SkyblockerMod;
 import de.hysky.skyblocker.skyblock.itemlist.recipebook.SkyblockRecipeBookWidget;
 import java.time.Duration;
+
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.ImageButton;
 import net.minecraft.client.gui.components.Tooltip;
@@ -20,7 +22,12 @@
 import net.minecraft.world.item.Items;
 
 public class SkyblockCraftingTableScreen extends AbstractContainerScreen<SkyblockCraftingTableScreenHandler> {
-	private static final Identifier TEXTURE = Identifier.withDefaultNamespace("textures/gui/container/crafting_table.png");
+	private static final FallbackedTexture<Identifier> TEXTURE = FallbackedTexture.ofTexture(
+			SkyblockerMod.id("textures/gui/container/skyblock_crafting_table.png"),
+			Identifier.withDefaultNamespace("textures/gui/container/crafting_table.png"));
+	private static final FallbackedTexture<Identifier> MIRRORVERSE_TEXTURE = FallbackedTexture.ofTexture(
+			SkyblockerMod.id("textures/gui/container/skyblock_crafting_table.png"),
+			Identifier.withDefaultNamespace("textures/gui/container/crafting_table.png"));
 	protected static final WidgetSprites MORE_CRAFTS_TEXTURES = new WidgetSprites(
 			SkyblockerMod.id("quick_craft/more_button"),
 			SkyblockerMod.id("quick_craft/more_button_disabled"),
@@ -96,9 +103,9 @@ protected void renderSlot(GuiGraphics context, Slot slot, int mouseX, int mouseY
 	protected void renderBg(GuiGraphics context, float delta, int mouseX, int mouseY) {
 		int i = this.leftPos;
 		int j = (this.height - this.imageHeight) / 2;
-		context.blit(RenderPipelines.GUI_TEXTURED, TEXTURE, i, j, 0, 0, this.imageWidth, this.imageHeight, 256, 256);
+		context.blit(RenderPipelines.GUI_TEXTURED, menu.mirrorverse ? MIRRORVERSE_TEXTURE.get() : TEXTURE.get(), i, j, 0, 0, this.imageWidth, this.imageHeight, 256, 256);
 		//4 px of margin to allow some space for custom resource packs that have size differences on the crafting table/inventory textures
-		if (!menu.mirrorverse) context.blit(RenderPipelines.GUI_TEXTURED, QUICK_CRAFT, i + 143, j - 3, 0, 0, 37, 90, 37, 90);
+		if (TEXTURE.isUsingFallback() && !menu.mirrorverse) context.blit(RenderPipelines.GUI_TEXTURED, QUICK_CRAFT, i + 143, j - 3, 0, 0, 37, 90, 37, 90);
 	}
 
 	@Override

src/main/java/de/hysky/skyblocker/skyblock/item/SkyblockInventoryScreen.java

@@ -14,6 +14,7 @@
 import de.hysky.skyblocker.skyblock.item.wikilookup.WikiLookupManager;
 import de.hysky.skyblocker.utils.ItemUtils;
 import de.hysky.skyblocker.utils.Utils;
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import de.hysky.skyblocker.utils.scheduler.MessageScheduler;
 import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents;
 import net.minecraft.client.Minecraft;
@@ -63,6 +64,9 @@ public class SkyblockInventoryScreen extends InventoryScreen implements HoveredI
 	private static final Identifier SLOT_TEXTURE = Identifier.withDefaultNamespace("container/slot");
 	private static final Identifier EMPTY_SLOT = SkyblockerMod.id("equipment/empty_icon");
 	private static final Path FOLDER = SkyblockerMod.CONFIG_DIR.resolve("equipment");
+	private static final FallbackedTexture<Identifier> BACKGROUND = FallbackedTexture.ofTexture(
+			SkyblockerMod.id("textures/gui/container/skyblock_inventory.png"),
+			INVENTORY_LOCATION);
 
 	private final Slot[] equipmentSlots = new Slot[4];
 	private ItemStack hoveredItem;
@@ -189,7 +193,15 @@ public void removed() {
 
 	@Override
 	protected void renderBg(GuiGraphics context, float delta, int mouseX, int mouseY) {
-		super.renderBg(context, delta, mouseX, mouseY);
+		if (BACKGROUND.isUsingFallback()) {
+			super.renderBg(context, delta, mouseX, mouseY);
+		} else {
+			int x = this.leftPos;
+			int y = this.topPos;
+			context.blit(RenderPipelines.GUI_TEXTURED, BACKGROUND.get(), x, y, 0.0F, 0.0F, this.imageWidth, this.imageHeight, 256, 256);
+			renderEntityInInventoryFollowsMouse(context, x + 26, y + 8, x + 75, y + 78, 30, 0.0625F, mouseX, mouseY, this.minecraft.player);
+			return;
+		}
 		for (int i = 0; i < 3; i++) {
 			context.blitSprite(RenderPipelines.GUI_TEXTURED, SLOT_TEXTURE, leftPos + 76, topPos + 7 + i * 18, 18, 18);
 		}

src/main/java/de/hysky/skyblocker/skyblock/museum/MuseumManager.java

@@ -1,6 +1,7 @@
 package de.hysky.skyblocker.skyblock.museum;
 
 import com.google.common.collect.Lists;
+import de.hysky.skyblocker.SkyblockerMod;
 import de.hysky.skyblocker.utils.hoveredItem.HoveredItemStackProvider;
 import com.mojang.datafixers.util.Either;
 import de.hysky.skyblocker.skyblock.item.wikilookup.WikiLookupManager;
@@ -37,7 +38,7 @@
 public class MuseumManager extends AbstractWidget implements HoveredItemStackProvider {
 	private static final Minecraft CLIENT = Minecraft.getInstance();
 	private static final Font TEXT_RENDERER = CLIENT.font;
-	private static final Identifier BACKGROUND_TEXTURE = Identifier.withDefaultNamespace("textures/gui/recipe_book.png");
+	private static final Identifier BACKGROUND_TEXTURE = SkyblockerMod.id("background");
 	public static final int BACKGROUND_WIDTH = 147;
 	public static final int BACKGROUND_HEIGHT = 160;
 	public static final int SPACING = 2;

src/main/java/de/hysky/skyblocker/skyblock/quicknav/QuickNavButton.java

@@ -7,6 +7,7 @@
 import de.hysky.skyblocker.mixins.accessors.PopupScreenAccessor;
 import de.hysky.skyblocker.utils.Constants;
 import de.hysky.skyblocker.utils.render.gui.AbstractPopupScreen;
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import de.hysky.skyblocker.utils.scheduler.MessageScheduler;
 import net.fabricmc.api.EnvType;
 import net.fabricmc.api.Environment;
@@ -36,6 +37,8 @@
 @Environment(value = EnvType.CLIENT)
 public class QuickNavButton extends AbstractWidget {
 	private static final long TOGGLE_DURATION = 1000;
+	@SuppressWarnings("unchecked")
+	private static final @Nullable FallbackedTexture<Identifier>[] TAB_TEXTURES = new FallbackedTexture[14];
 
 	private final int index;
 	private final boolean toggled;
@@ -178,8 +181,7 @@ public void renderWidget(GuiGraphics context, int mouseX, int mouseY, float delt
 			alpha = Math.min(alpha + 10, 255);
 		}
 
-		// Construct the texture identifier based on the index and toggled state
-		Identifier tabTexture = Identifier.withDefaultNamespace("container/creative_inventory/tab_" + (isTopTab() ? "top" : "bottom") + "_" + (renderInFront ? "selected" : "unselected") + "_" + (index % 7 + 1));
+		Identifier tabTexture = getTexture();
 
 		// Render the button texture, always with full alpha if it's not rendering in front
 		context.blitSprite(RenderPipelines.GUI_TEXTURED, tabTexture, this.getX(), this.getY(), this.width, this.height, renderInFront ? ARGB.color(alpha, -1) : -1);
@@ -190,6 +192,16 @@ public void renderWidget(GuiGraphics context, int mouseX, int mouseY, float delt
 		this.handleCursor(context);
 	}
 
+	private Identifier getTexture() {
+		FallbackedTexture<Identifier> texture = TAB_TEXTURES[index];
+		if (texture != null) return texture.get();
+		// Construct the texture identifier based on the index and toggled state
+		return (TAB_TEXTURES[index] = FallbackedTexture.ofGuiSprite(
+				SkyblockerMod.id("quick_nav/tab_" + (isTopTab() ? "top" : "bottom") + "_" + (renderInFront ? "selected" : "unselected") + "_" + (index % 7 + 1)),
+				Identifier.withDefaultNamespace("container/creative_inventory/tab_" + (isTopTab() ? "top" : "bottom") + "_" + (renderInFront ? "selected" : "unselected") + "_" + (index % 7 + 1))
+		)).get();
+	}
+
 	@Override
 	protected void updateWidgetNarration(NarrationElementOutput builder) {}
 }

src/main/java/de/hysky/skyblocker/skyblock/searchoverlay/OverlayScreen.java

@@ -1,6 +1,8 @@
 package de.hysky.skyblocker.skyblock.searchoverlay;
 
+import de.hysky.skyblocker.SkyblockerMod;
 import de.hysky.skyblocker.config.SkyblockerConfigManager;
+import de.hysky.skyblocker.utils.render.texture.FallbackedTexture;
 import net.minecraft.ChatFormatting;
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.Button;
@@ -23,7 +25,9 @@ public class OverlayScreen extends Screen {
 
 	protected static final Identifier SEARCH_ICON_TEXTURE = Identifier.withDefaultNamespace("icon/search");
 	protected static final Identifier DELETE_ICON_TEXTURE = Identifier.withDefaultNamespace("textures/gui/sprites/pending_invite/reject.png");
-	private static final Identifier BACKGROUND_TEXTURE = Identifier.withDefaultNamespace("social_interactions/background");
+	private static final FallbackedTexture<Identifier> BACKGROUND_TEXTURE = FallbackedTexture.ofGuiSprite(
+			SkyblockerMod.id("search_overlay/background"),
+			Identifier.withDefaultNamespace("social_interactions/background"));
 	private static final int rowHeight = 20;
 	private static final int specialButtonSize = rowHeight;
 	private EditBox searchField;
@@ -219,7 +223,7 @@ public void renderBackground(GuiGraphics context, int mouseX, int mouseY, float
 		if (historyButtons.length > 0) { //add space for history label if it could exist
 			maxHeight += (int) (rowHeight * 0.75);
 		}
-		context.blitSprite(RenderPipelines.GUI_TEXTURED, BACKGROUND_TEXTURE, searchField.getX() - 8, searchField.getY() - 8, (int) (this.width * 0.4) + 16, maxHeight + 16);
+		context.blitSprite(RenderPipelines.GUI_TEXTURED, BACKGROUND_TEXTURE.get(), searchField.getX() - 8, searchField.getY() - 8, (int) (this.width * 0.4) + 16, maxHeight + 16);
 	}
 
 	/**

src/main/java/de/hysky/skyblocker/utils/render/gui/SideTabButtonWidget.java

@@ -2,6 +2,7 @@
 
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.ImageButton;
+import net.minecraft.client.gui.components.WidgetSprites;
 import net.minecraft.client.gui.screens.recipebook.RecipeBookTabButton;
 import net.minecraft.client.input.MouseButtonEvent;
 import net.minecraft.client.renderer.RenderPipelines;
@@ -16,14 +17,17 @@ public void setIcon(ItemStack icon) {
 		this.icon = icon.copy();
 	}
 
-	public SideTabButtonWidget(int x, int y, boolean toggled, ItemStack icon) {
-		super(x, y, 35, 27, RecipeBookTabButton.SPRITES, _ignored -> {});
+	public SideTabButtonWidget(int x, int y, boolean toggled, WidgetSprites sprites, ItemStack icon) {
+		super(x, y, 35, 27, sprites, _ignored -> {});
 		this.icon = icon.copy();
 	}
 
+	public SideTabButtonWidget(int x, int y, boolean toggled, ItemStack icon) {
+		this(x, y, toggled, RecipeBookTabButton.SPRITES, icon);
+	}
+
 	@Override
 	public void renderContents(GuiGraphics context, int mouseX, int mouseY, float delta) {
-		if (sprites == null) return;
 		Identifier identifier = sprites.get(true, this.selected);
 		int x = getX();
 		if (this.selected) x -= 2;

src/main/java/de/hysky/skyblocker/utils/render/texture/FallbackedTexture.java

@@ -0,0 +1,79 @@
+package de.hysky.skyblocker.utils.render.texture;
+
+import com.mojang.datafixers.util.Unit;
+import de.hysky.skyblocker.SkyblockerMod;
+import de.hysky.skyblocker.annotations.Init;
+import net.fabricmc.fabric.api.resource.v1.ResourceLoader;
+import net.fabricmc.fabric.api.resource.v1.reloader.ResourceReloaderKeys;
+import net.minecraft.client.gui.components.WidgetSprites;
+import net.minecraft.data.AtlasIds;
+import net.minecraft.resources.Identifier;
+import net.minecraft.server.packs.PackType;
+import org.jspecify.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Supplier;
+
+/**
+ * A texture reference that will default back to another one if it doesn't exist.
+ */
+public interface FallbackedTexture<T> extends Supplier<T> {
+	List<Runnable> UPDATE_CALLBACKS = new ArrayList<>();
+
+	boolean isUsingFallback();
+
+	/**
+	 * @param id the texture that may or may not be specified by a resource pack
+	 * @param fallback the fallback if {@code id} doesn't exist
+	 * @param atlas the to look in, pass null if the texture isn't in any atlas.
+	 * @return a fallbacked texture supplier
+	 */
+	static FallbackedTexture<Identifier> of(Identifier id, Identifier fallback, @Nullable Identifier atlas) {
+		IdentifierTexture identifierTexture = new IdentifierTexture(id, fallback, atlas);
+		UPDATE_CALLBACKS.add(identifierTexture::update);
+		return identifierTexture;
+	}
+
+	/**
+	 * For textures in the {@code gui/sprites} folder.
+	 */
+	static FallbackedTexture<Identifier> ofGuiSprite(Identifier id, Identifier fallback) {
+		return of(id, fallback, AtlasIds.GUI);
+	}
+
+	/**
+	 * For textures that aren't in any atlas (usually backgrounds)
+	 */
+	static FallbackedTexture<Identifier> ofTexture(Identifier id, Identifier fallback) {
+		return of(id, fallback, null);
+	}
+
+	/**
+	 * WidgetSprites, used for buttons.
+	 */
+	static FallbackedTexture<WidgetSprites> ofWidgetSprites(WidgetSprites sprites, WidgetSprites fallback) {
+		List<IdentifierTexture> textures = new ArrayList<>(4);
+		WidgetSpritesFallback.Helper helper = new WidgetSpritesFallback.Helper(sprites, fallback);
+		helper.populate(textures, WidgetSprites::enabled);
+		helper.populate(textures, WidgetSprites::disabled);
+		helper.populate(textures, WidgetSprites::enabledFocused);
+		helper.populate(textures, WidgetSprites::disabledFocused);
+		WidgetSpritesFallback spritesFallback = new WidgetSpritesFallback(textures.get(0), textures.get(1), textures.get(2), textures.get(3));
+		UPDATE_CALLBACKS.add(spritesFallback::update);
+		return spritesFallback;
+	}
+
+
+	@Init
+	static void init() {
+		Identifier id = SkyblockerMod.id("fallback_texture_reloader");
+		ResourceLoader.get(PackType.CLIENT_RESOURCES).registerReloader(id,
+				(sharedState, executor, preparationBarrier, executor2) -> CompletableFuture
+						.supplyAsync(() -> Unit.INSTANCE, executor)
+						.thenCompose(preparationBarrier::wait)
+						.thenAcceptAsync(unit -> UPDATE_CALLBACKS.forEach(Runnable::run)));
+		ResourceLoader.get(PackType.CLIENT_RESOURCES).addReloaderOrdering(ResourceReloaderKeys.AFTER_VANILLA, id);
+	}
+}

src/main/java/de/hysky/skyblocker/utils/render/texture/IdentifierTexture.java

@@ -0,0 +1,48 @@
+package de.hysky.skyblocker.utils.render.texture;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.TextureAtlas;
+import net.minecraft.resources.Identifier;
+import net.minecraft.server.packs.resources.Resource;
+import org.jspecify.annotations.Nullable;
+
+import java.util.Optional;
+
+class IdentifierTexture implements FallbackedTexture<Identifier> {
+
+	protected final Identifier texture;
+	protected final Identifier fallback;
+	private final @Nullable Identifier atlas;
+	private Identifier currentTexture;
+
+	protected IdentifierTexture(Identifier texture, Identifier fallback, @Nullable Identifier atlas) {
+		this.texture = texture;
+		this.fallback = fallback;
+		this.atlas = atlas;
+		this.currentTexture = texture;
+		if (Minecraft.getInstance().isGameLoadFinished()) update();
+	}
+
+	@Override
+	public boolean isUsingFallback() {
+		return currentTexture == fallback;
+	}
+
+	@Override
+	public Identifier get() {
+		return currentTexture;
+	}
+
+	void update() {
+		Minecraft minecraft = Minecraft.getInstance();
+		if (atlas != null) {
+			TextureAtlas textureAtlas = minecraft.getAtlasManager().getAtlasOrThrow(atlas);
+			if (textureAtlas.missingSprite().equals(textureAtlas.getSprite(texture))) currentTexture = fallback;
+			else currentTexture = texture;
+		} else {
+			Optional<Resource> resource = minecraft.getResourceManager().getResource(texture);
+			if (resource.isEmpty())  currentTexture = fallback;
+			else currentTexture = texture;
+		}
+	}
+}