Scroll tweaks

Common/src/main/java/at/petrak/hexcasting/api/mod/HexConfig.java

@@ -74,10 +74,14 @@ public interface ServerConfigAccess {
 
         boolean trueNameHasAmbit();
 
+        double traderScrollChance();
+
         int DEFAULT_MAX_OP_COUNT = 100_000;
         int DEFAULT_MAX_SPELL_CIRCLE_LENGTH = 1024;
         int DEFAULT_OP_BREAK_HARVEST_LEVEL = 3;
 
+        double DEFAULT_TRADER_SCROLL_CHANCE = 0.2;
+
         boolean DEFAULT_VILLAGERS_DISLIKE_MIND_MURDER = true;
 
         List<String> DEFAULT_DIM_TP_DENYLIST = List.of("twilightforest:twilight_forest");

Common/src/main/java/at/petrak/hexcasting/common/items/storage/ItemScroll.java

@@ -9,38 +9,47 @@
 import at.petrak.hexcasting.common.entities.EntityWallScroll;
 import at.petrak.hexcasting.common.lib.hex.HexIotaTypes;
 import at.petrak.hexcasting.common.misc.PatternTooltip;
+import at.petrak.hexcasting.common.casting.PatternRegistryManifest;
 import at.petrak.hexcasting.interop.inline.InlinePatternData;
+import at.petrak.hexcasting.xplat.IXplatAbstractions;
+import net.minecraft.ChatFormatting;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
+import net.minecraft.resources.ResourceKey;
 import net.minecraft.world.InteractionResult;
+import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.EntityType;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.tooltip.TooltipComponent;
 import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.TooltipFlag;
 import net.minecraft.world.item.context.UseOnContext;
 import net.minecraft.world.level.gameevent.GameEvent;
+import net.minecraft.world.level.Level;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.Optional;
+import java.util.List;
 
 import static at.petrak.hexcasting.api.HexAPI.modLoc;
 
 /**
- * TAG_OP_ID and TAG_PATTERN: "Ancient Scroll of %s" (Great Spells)
+ * TAG_OP_ID and TAG_PATTERN: "Ancient Scroll of %s" (per-world pattern preloaded)
+ * <br>
+ * TAG_OP_ID: "Ancient Scroll of %s" (per-world pattern loaded on inv tick)
  * <br>
  * TAG_PATTERN: "Scroll" (custom)
  * <br>
  * (none): "Empty Scroll"
- * <br>
- * TAG_OP_ID: invalid
  */
 public class ItemScroll extends Item implements IotaHolderItem {
     public static final String TAG_OP_ID = "op_id";
     public static final String TAG_PATTERN = "pattern";
+    public static final String TAG_NEEDS_PURCHASE = "needs_purchase";
     public static final ResourceLocation ANCIENT_PREDICATE = modLoc("ancient");
 
     public final int blockSize;
@@ -50,6 +59,15 @@ public ItemScroll(Properties pProperties, int blockSize) {
         this.blockSize = blockSize;
     }
 
+    // this produces a scroll that will load the correct pattern for your world once it ticks
+    public static ItemStack withPerWorldPattern(ItemStack stack, String op_id) {
+        Item item = stack.getItem();
+        if (item instanceof ItemScroll)
+            NBTHelper.putString(stack, TAG_OP_ID, op_id);
+
+        return stack;
+    }
+
     @Override
     public @Nullable
     CompoundTag readIotaTag(ItemStack stack) {
@@ -133,7 +151,7 @@ public Component getName(ItemStack pStack) {
             return Component.translatable(descID + ".of",
                 Component.translatable("hexcasting.action." + ResourceLocation.tryParse(ancientId)));
         } else if (NBTHelper.hasCompound(pStack, TAG_PATTERN)) {
-            var compound = NBTHelper.getCompound(pStack, ItemScroll.TAG_PATTERN);
+            var compound = NBTHelper.getCompound(pStack, TAG_PATTERN);
             var patternLabel = Component.literal("");
             if (compound != null) {
                 var pattern = HexPattern.fromNBT(compound);
@@ -145,16 +163,47 @@ public Component getName(ItemStack pStack) {
         }
     }
 
-    // purposely no hover text
+    @Override
+    public void inventoryTick(ItemStack pStack, Level pLevel, Entity pEntity, int pSlotId, boolean pIsSelected) {
+        // the needs_purchase tag is used so you can't see the pattern on scrolls sold by a wandering trader
+        // once you put the scroll into your inventory, this removes the tag to reveal the pattern
+        if (NBTHelper.getBoolean(pStack, TAG_NEEDS_PURCHASE)) {
+            NBTHelper.remove(pStack, TAG_NEEDS_PURCHASE);
+        }
+        // if op_id is set but there's no stored pattern, attempt to load the pattern on inv tick
+        if (NBTHelper.hasString(pStack, TAG_OP_ID) && !NBTHelper.hasCompound(pStack, TAG_PATTERN) && pEntity.getServer() != null) {
+            var opID = ResourceLocation.tryParse(NBTHelper.getString(pStack, TAG_OP_ID));
+            if (opID == null) {
+                // if the provided op_id is invalid, remove it so we don't keep trying every tick
+                NBTHelper.remove(pStack, TAG_OP_ID);
+                return;
+            }
+            var patternKey = ResourceKey.create(IXplatAbstractions.INSTANCE.getActionRegistry().key(), opID);
+            var pat = PatternRegistryManifest.getCanonicalStrokesPerWorld(patternKey, pEntity.getServer().overworld());
+            NBTHelper.put(pStack, TAG_PATTERN, pat.serializeToNBT());
+        }
+    }
+
+    @Override
+    public void appendHoverText(ItemStack pStack, @Nullable Level pLevel, List<Component> pTooltipComponents,
+        TooltipFlag pIsAdvanced) {
+        if (NBTHelper.getBoolean(pStack, TAG_NEEDS_PURCHASE)) {
+            var needsPurchase = Component.translatable("hexcasting.tooltip.scroll.needs_purchase");
+            pTooltipComponents.add(needsPurchase.withStyle(ChatFormatting.GRAY));
+        } else if (NBTHelper.hasString(pStack, TAG_OP_ID) && !NBTHelper.hasCompound(pStack, TAG_PATTERN)) {
+            var notLoaded = Component.translatable("hexcasting.tooltip.scroll.pattern_not_loaded");
+            pTooltipComponents.add(notLoaded.withStyle(ChatFormatting.GRAY));
+        }
+    }
 
     @Override
     public Optional<TooltipComponent> getTooltipImage(ItemStack stack) {
-        var compound = NBTHelper.getCompound(stack, ItemScroll.TAG_PATTERN);
-        if (compound != null) {
+        var compound = NBTHelper.getCompound(stack, TAG_PATTERN);
+        if (compound != null && !NBTHelper.getBoolean(stack, TAG_NEEDS_PURCHASE)) {
             var pattern = HexPattern.fromNBT(compound);
             return Optional.of(new PatternTooltip(
                 pattern,
-                NBTHelper.hasString(stack, ItemScroll.TAG_OP_ID)
+                NBTHelper.hasString(stack, TAG_OP_ID)
                     ? PatternTooltipComponent.ANCIENT_BG
                     : PatternTooltipComponent.PRISTINE_BG));
         }

Common/src/main/java/at/petrak/hexcasting/common/lib/HexCreativeTabs.java

@@ -4,6 +4,7 @@
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.item.CreativeModeTab;
 import net.minecraft.world.item.ItemStack;
+import at.petrak.hexcasting.common.items.storage.ItemScroll;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -23,8 +24,11 @@ public static void registerCreativeTabs(BiConsumer<CreativeModeTab, ResourceLoca
     public static final CreativeModeTab HEX = register("hexcasting", CreativeModeTab.builder(CreativeModeTab.Row.TOP, 7)
             .icon(() -> new ItemStack(HexItems.SPELLBOOK)));
 
+    public static final CreativeModeTab SCROLLS = register("scrolls", CreativeModeTab.builder(CreativeModeTab.Row.TOP, 7)
+            .icon(() -> ItemScroll.withPerWorldPattern(new ItemStack(HexItems.SCROLL_LARGE),"")));
+
     private static CreativeModeTab register(String name, CreativeModeTab.Builder tabBuilder) {
-        var tab = tabBuilder.title(Component.translatable("itemGroup." + name)).build();
+        var tab = tabBuilder.title(Component.translatable("itemGroup.hexcasting." + name)).build();
         var old = TABS.put(modLoc(name), tab);
         if (old != null) {
             throw new IllegalArgumentException("Typo? Duplicate id " + name);

Common/src/main/java/at/petrak/hexcasting/common/lib/HexItems.java

@@ -1,6 +1,9 @@
 package at.petrak.hexcasting.common.lib;
 
 import at.petrak.hexcasting.api.misc.MediaConstants;
+import at.petrak.hexcasting.api.utils.HexUtils;
+import at.petrak.hexcasting.api.casting.ActionRegistryEntry;
+import at.petrak.hexcasting.api.mod.HexTags;
 import at.petrak.hexcasting.common.items.ItemJewelerHammer;
 import at.petrak.hexcasting.common.items.ItemLens;
 import at.petrak.hexcasting.common.items.ItemLoreFragment;
@@ -14,6 +17,8 @@
 import at.petrak.hexcasting.xplat.IXplatAbstractions;
 import com.google.common.base.Suppliers;
 import net.minecraft.Util;
+import net.minecraft.core.Registry;
+import net.minecraft.resources.ResourceKey;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.food.FoodProperties;
@@ -35,6 +40,7 @@ public static void registerItems(BiConsumer<Item, ResourceLocation> r) {
     }
 
     public static void registerItemCreativeTab(CreativeModeTab.Output r, CreativeModeTab tab) {
+        if (tab == HexCreativeTabs.SCROLLS) generateScrollEntries();
         for (var item : ITEM_TABS.getOrDefault(tab, List.of())) {
             item.register(r);
         }
@@ -107,7 +113,6 @@ public static void registerItemCreativeTab(CreativeModeTab.Output r, CreativeMod
             new ItemStack(HexItems.BATTERY),
             MediaConstants.QUENCHED_SHARD_UNIT * 64,
             MediaConstants.QUENCHED_SHARD_UNIT * 64), HexCreativeTabs.HEX);
-
     public static final Supplier<ItemStack> BATTERY_QUENCHED_BLOCK_STACK = addToTab(() -> ItemMediaBattery.withMedia(
             new ItemStack(HexItems.BATTERY),
             MediaConstants.QUENCHED_BLOCK_UNIT * 64,
@@ -156,6 +161,21 @@ public static Item.Properties unstackable() {
         return props().stacksTo(1);
     }
 
+    private static void generateScrollEntries() {
+        var keyList = new ArrayList<ResourceKey<ActionRegistryEntry>>();
+        Registry<ActionRegistryEntry> regi = IXplatAbstractions.INSTANCE.getActionRegistry();
+        for (var key : regi.registryKeySet())
+            if (HexUtils.isOfTag(regi, key, HexTags.Actions.PER_WORLD_PATTERN))
+                keyList.add(key);
+        keyList.sort( (a, b) -> a.location().compareTo(b.location()) );
+        for (var key : keyList) {
+            addToTab(() -> ItemScroll.withPerWorldPattern(
+                new ItemStack(HexItems.SCROLL_LARGE),
+                key.location().toString()
+            ),HexCreativeTabs.SCROLLS);
+        }
+    }
+
     private static <T extends Item> T make(ResourceLocation id, T item, @Nullable CreativeModeTab tab) {
         var old = ITEMS.put(id, item);
         if (old != null) {

Common/src/main/java/at/petrak/hexcasting/common/loot/AddPerWorldPatternToScrollFunc.java

@@ -3,16 +3,20 @@
 import at.petrak.hexcasting.api.casting.ActionRegistryEntry;
 import at.petrak.hexcasting.api.mod.HexTags;
 import at.petrak.hexcasting.api.utils.HexUtils;
+import at.petrak.hexcasting.api.utils.NBTHelper;
 import at.petrak.hexcasting.common.casting.PatternRegistryManifest;
 import at.petrak.hexcasting.common.items.storage.ItemScroll;
 import at.petrak.hexcasting.common.lib.HexLootFunctions;
 import at.petrak.hexcasting.xplat.IXplatAbstractions;
 import com.google.gson.JsonDeserializationContext;
 import com.google.gson.JsonObject;
 import com.google.gson.JsonSerializationContext;
+import net.minecraft.util.RandomSource;
 import net.minecraft.core.Registry;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.storage.loot.LootContext;
 import net.minecraft.world.level.storage.loot.functions.LootItemConditionalFunction;
@@ -35,30 +39,24 @@ public AddPerWorldPatternToScrollFunc(LootItemCondition[] lootItemConditions) {
     /**
      * This doesn't actually have any params so extract behaviour out for the benefit of forge
      */
-    public static ItemStack doStatic(ItemStack stack, LootContext ctx) {
-        var rand = ctx.getRandom();
+    public static ItemStack doStatic(ItemStack stack, RandomSource rand, ServerLevel overworld) {
         var perWorldKeys = new ArrayList<ResourceKey<ActionRegistryEntry>>();
         Registry<ActionRegistryEntry> regi = IXplatAbstractions.INSTANCE.getActionRegistry();
         for (var key : regi.registryKeySet()) {
             if (HexUtils.isOfTag(regi, key, HexTags.Actions.PER_WORLD_PATTERN)) {
                 perWorldKeys.add(key);
             }
         }
-        var key = perWorldKeys.get(rand.nextInt(perWorldKeys.size()));
-
-        var pat = PatternRegistryManifest.getCanonicalStrokesPerWorld(key, ctx.getLevel().getServer().overworld());
-        var tag = new CompoundTag();
-        tag.putString(ItemScroll.TAG_OP_ID, key.location().toString());
-        tag.put(ItemScroll.TAG_PATTERN, pat.serializeToNBT());
-
-        stack.getOrCreateTag().merge(tag);
-
+        var patternKey = perWorldKeys.get(rand.nextInt(perWorldKeys.size()));
+        var pat = PatternRegistryManifest.getCanonicalStrokesPerWorld(patternKey, overworld);
+        NBTHelper.putString(stack, ItemScroll.TAG_OP_ID, patternKey.location().toString());
+        NBTHelper.put(stack, ItemScroll.TAG_PATTERN, pat.serializeToNBT());
         return stack;
     }
 
     @Override
     protected ItemStack run(ItemStack stack, LootContext ctx) {
-        return doStatic(stack, ctx);
+        return doStatic(stack, ctx.getRandom(), ctx.getLevel().getServer().overworld());
     }
 
     @Override

Common/src/main/java/at/petrak/hexcasting/mixin/MixinWanderingTrader.java

@@ -0,0 +1,37 @@
+package at.petrak.hexcasting.mixin;
+
+import net.minecraft.world.entity.npc.WanderingTrader;
+import net.minecraft.world.item.trading.MerchantOffers;
+import net.minecraft.world.item.trading.MerchantOffer;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Items;
+import net.minecraft.util.RandomSource;
+import net.minecraft.server.MinecraftServer;
+import at.petrak.hexcasting.api.mod.HexConfig;
+import at.petrak.hexcasting.api.utils.NBTHelper;
+import at.petrak.hexcasting.common.lib.HexItems;
+import at.petrak.hexcasting.common.loot.AddPerWorldPatternToScrollFunc;
+import at.petrak.hexcasting.common.items.storage.ItemScroll;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+// Adds ancient scrolls to the wandering trader by replacing the special trade in the last slot
+@Mixin(WanderingTrader.class)
+public class MixinWanderingTrader {
+	@Inject(method = "updateTrades", at = @At("RETURN"))
+	private void addNewTrades(CallbackInfo ci) {
+        var self = (WanderingTrader) (Object) this;
+        MerchantOffers offerList = self.getOffers();
+        if (offerList == null)
+            return;
+        RandomSource rand = self.getRandom();
+        if (rand.nextFloat() < HexConfig.server().traderScrollChance() && self.getServer() != null) {
+            ItemStack scroll = new ItemStack(HexItems.SCROLL_LARGE);
+            AddPerWorldPatternToScrollFunc.doStatic(scroll, rand, self.getServer().overworld());
+            NBTHelper.putBoolean(scroll, ItemScroll.TAG_NEEDS_PURCHASE, true);
+            offerList.set(5, new MerchantOffer(new ItemStack(Items.EMERALD, 12), scroll, 1, 1, 1));
+        }
+    }
+}

Common/src/main/resources/assets/hexcasting/lang/en_us.flatten.json5

@@ -257,8 +257,8 @@
   },
 
   "itemGroup.hexcasting": {
-    "": "Hexcasting",
-    creative_tab: "Hexcasting",
+    hexcasting: "Hex Casting",
+    scrolls: "Hex Casting (Scrolls)",
   },
 
   "gui.hexcasting": {
@@ -377,6 +377,10 @@
           "": "Villagers Offended By Mind Murder",
           "@Tooltip": "Whether villagers should be angry at the player when other villagers are mindflayed",
         },
+        traderScrollChance: {
+          "": "Wandering Trader Scroll Chance",
+          "@Tooltip": "The chance for wandering traders to sell an Ancient Scroll",
+        },
         scrollInjectionsRaw: {
           "": "Scroll Injection Weights",
           "@Tooltip": "Maps the names of loot tables to the amount of per-world patterns on scrolls should go in them. There's about a 50% chance to get any scrolls in a given chest marked here; once that is met, between 1 and that many scrolls are generated.",
@@ -401,11 +405,6 @@
           "": "Amethyst Shard Drop Rate Change",
           "@Tooltip": "How much the number of amethyst shards dropped from clusters is increased/decreased.",
         },
-
-        // TODO: are these used anywhere??
-        "fewScrollTables.@Tooltip": "Loot tables that a small number of Ancient Scrolls are injected into",
-        "someScrollTables.@Tooltip": "Loot tables that a decent number of Ancient Scrolls are injected into",
-        "manyScrollTables.@Tooltip": "Loot tables that a huge number of Ancient Scrolls are injected into",
       },
     },
   },
@@ -561,6 +560,11 @@
         },
         sealed: "Sealed",
       },
+
+      scroll: {
+        needs_purchase: "Purchase to show pattern",
+        pattern_not_loaded: "Place in inventory to load pattern",
+      },
 
       abacus: {
         "": "%d",

Common/src/main/resources/assets/hexcasting/lang/ru_ru.flatten.json5

@@ -211,8 +211,8 @@
   },
 
   "itemGroup.hexcasting": {
-    "": "Hexcasting",
-    creative_tab: "Hexcasting",
+    hexcasting: "Hex Casting",
+    scrolls: "Hex Casting (Scrolls)",
   },
 
   "gui.hexcasting": {
@@ -335,11 +335,6 @@
           "": "Amethyst Shard Drop Rate Change",
           "@Tooltip": "How much the number of amethyst shards dropped from clusters is increased/decreased.",
         },
-
-        // TODO: are these used anywhere??
-        "fewScrollTables.@Tooltip": "Loot tables that a small number of Ancient Scrolls are injected into",
-        "someScrollTables.@Tooltip": "Loot tables that a decent number of Ancient Scrolls are injected into",
-        "manyScrollTables.@Tooltip": "Loot tables that a huge number of Ancient Scrolls are injected into",
       },
     },
   },