Creative inventory Helper

src/main/java/turniplabs/halplibe/HalpLibe.java

@@ -10,6 +10,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import turniplabs.halplibe.helper.AchievementHelper;
+import turniplabs.halplibe.helper.CreativeHelper;
 import turniplabs.halplibe.helper.ModVersionHelper;
 import turniplabs.halplibe.helper.NetworkHelper;
 import turniplabs.halplibe.util.TomlConfigHandler;

src/main/java/turniplabs/halplibe/helper/CreativeHelper.java

@@ -0,0 +1,61 @@
+package turniplabs.halplibe.helper;
+
+import net.minecraft.core.item.IItemConvertible;
+import net.minecraft.core.item.ItemStack;
+import turniplabs.halplibe.util.CreativeEntry;
+
+public class CreativeHelper {
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param priority the priority for the item to be added, lower numbers appear higher in the list. Default is 1000
+     */
+    @SuppressWarnings("unused")
+    public static void setPriority(IItemConvertible itemToAdd, int priority){
+        setPriority(itemToAdd.getDefaultStack(), priority);
+    }
+
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param meta the meta value for the itemToAdd
+     * @param priority the priority for the item to be added, lower numbers appear higher in the list. Default is 1000
+     */
+    @SuppressWarnings("unused")
+    public static void setPriority(IItemConvertible itemToAdd, int meta, int priority){
+        setPriority(new ItemStack(itemToAdd, 1, meta), priority);
+    }
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param priority the priority for the item to be added, lower numbers appear higher in the list. Default is 1000
+     */
+    @SuppressWarnings("unused")
+    public static void setPriority(ItemStack itemToAdd, int priority){
+        CreativeEntry.addEntry(new CreativeEntry(itemToAdd, priority));
+    }
+
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param itemParent The itemstack that the itemToAdd will be placed after
+     */
+    @SuppressWarnings("unused")
+    public static void setParent(IItemConvertible itemToAdd, IItemConvertible itemParent){
+        setParent(itemToAdd.getDefaultStack(), itemParent.getDefaultStack());
+    }
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param metaToAdd the meta value for the itemToAdd
+     * @param itemParent The itemstack that the itemToAdd will be placed after
+     * @param metaParent the meta value for the itemParent
+     */
+    @SuppressWarnings("unused")
+    public static void setParent(IItemConvertible itemToAdd, int metaToAdd, IItemConvertible itemParent, int metaParent){
+        setParent(new ItemStack(itemToAdd, 1, metaToAdd), new ItemStack(itemParent, metaParent));
+    }
+    /**
+     * @param itemToAdd The itemstack to be added to the creative inventory list
+     * @param itemParent The itemstack that the itemToAdd will be placed after
+     */
+    @SuppressWarnings("unused")
+    public static void setParent(ItemStack itemToAdd, ItemStack itemParent){
+        CreativeEntry.addEntry(new CreativeEntry(itemToAdd, itemParent));
+    }
+}

src/main/java/turniplabs/halplibe/mixin/mixins/ContainerPlayerCreativeMixin.java

@@ -0,0 +1,96 @@
+package turniplabs.halplibe.mixin.mixins;
+
+import com.google.common.collect.Lists;
+import net.minecraft.core.block.Block;
+import net.minecraft.core.item.ItemStack;
+import net.minecraft.core.player.inventory.ContainerPlayerCreative;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import turniplabs.halplibe.HalpLibe;
+import turniplabs.halplibe.util.CreativeEntry;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Mixin(value = ContainerPlayerCreative.class, remap = false, priority = 900)
+public class ContainerPlayerCreativeMixin {
+    @Shadow public static int creativeItemsCount;
+
+    @Shadow public static List<ItemStack> creativeItems;
+
+    @Inject(method = "<clinit>", at = @At("TAIL"))
+    private static void test(CallbackInfo ci){
+        List<ItemStack> trimmedList = new ArrayList<>(creativeItems);
+        List<ItemStack> newList = new ArrayList<>();
+        for (ItemStack stack : creativeItems){
+            if (CreativeEntry.priorityEntryMap.containsKey(stack.toString()) || CreativeEntry.childEntryMap.containsKey(stack.toString())){
+                trimmedList.remove(stack);
+            }
+        }
+
+        List<ItemStack> trimmedBlocks = new ArrayList<>();
+        List<ItemStack> trimmedItems = new ArrayList<>();
+
+        for (ItemStack stack : trimmedList){
+            if (stack.itemID < Block.blocksList.length){
+                trimmedBlocks.add(stack);
+            } else {
+                trimmedItems.add(stack);
+            }
+        }
+
+        List<CreativeEntry> entries = CreativeEntry.priorityEntryMap.values().stream().sorted().collect(Collectors.toList());
+        boolean hasAddedVanillaBlocks = false;
+        for (CreativeEntry entry : entries){
+            if (entry.stackToAdd.itemID < Block.blocksList.length){
+                if (entry.priority > 1000 && !hasAddedVanillaBlocks){
+                    hasAddedVanillaBlocks = true;
+                    newList.addAll(trimmedBlocks);
+                }
+                newList.add(entry.stackToAdd);
+            }
+        }
+        if (!hasAddedVanillaBlocks){
+            newList.addAll(trimmedBlocks);
+        }
+
+        boolean hasAddedVanillaItems = false;
+        for (CreativeEntry entry : entries){
+            if (entry.stackToAdd.itemID >= Block.blocksList.length){
+                if (entry.priority > 1000 && !hasAddedVanillaItems){
+                    hasAddedVanillaItems = true;
+                    newList.addAll(trimmedItems);
+                }
+                newList.add(entry.stackToAdd);
+            }
+        }
+        if (!hasAddedVanillaItems){
+            newList.addAll(trimmedItems);
+        }
+
+        List<CreativeEntry> entriesChild = Lists.reverse(new ArrayList<>(CreativeEntry.childEntryMap.values()));
+        for (CreativeEntry entry : entriesChild){
+            int index = -1;
+            for (ItemStack stack : newList){
+                if (stack.toString().equals(entry.parentStack.toString())){
+                    index = newList.indexOf(stack);
+                    break;
+                }
+            }
+            if (index != -1){
+                newList.add(index + 1, entry.stackToAdd);
+            } else {
+                newList.add(entry.stackToAdd);
+                HalpLibe.LOGGER.warn("Could not find parent stack of '" + entry.parentStack + "' in the list! does it exist? adding stack to end of list!");
+            }
+        }
+
+        creativeItems = newList;
+        creativeItemsCount = creativeItems.size();
+    }
+}

src/main/java/turniplabs/halplibe/util/CreativeEntry.java

@@ -0,0 +1,43 @@
+package turniplabs.halplibe.util;
+
+import net.minecraft.core.item.ItemStack;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashMap;
+
+public class CreativeEntry implements Comparable<CreativeEntry> {
+    public static final HashMap<String, CreativeEntry> priorityEntryMap = new HashMap<>();
+    public static final HashMap<String, CreativeEntry> childEntryMap = new HashMap<>();
+    public static void addEntry(CreativeEntry entry){
+        String key = entry.stackToAdd.toString();
+        if (entry.parentStack != null){
+            childEntryMap.put(key, entry);
+            priorityEntryMap.remove(key);
+        } else {
+            priorityEntryMap.put(key, entry);
+            childEntryMap.remove(key);
+        }
+    }
+    public int priority;
+    public final ItemStack stackToAdd;
+    public ItemStack parentStack;
+    public CreativeEntry(ItemStack stack){
+        this(stack, 1000);
+    }
+    public CreativeEntry(ItemStack stack, int priority){
+        this.stackToAdd = stack.copy();
+        this.stackToAdd.stackSize = 1;
+        this.priority = priority;
+    }
+    public CreativeEntry(ItemStack stackToAdd, ItemStack parentStack){
+        this.stackToAdd = stackToAdd.copy();
+        this.stackToAdd.stackSize = 1;
+        this.parentStack = parentStack.copy();
+        this.parentStack.stackSize = 1;
+    }
+
+    @Override
+    public int compareTo(@NotNull CreativeEntry o) {
+        return priority - o.priority;
+    }
+}

src/main/resources/halplibe.mixins.json

@@ -14,6 +14,7 @@
     "mixins.BlockFireMixin",
     "mixins.BlockMixin",
     "mixins.BlockSoundDispatcherMixin",
+    "mixins.ContainerPlayerCreativeMixin",
     "mixins.I18nMixin",
     "mixins.ItemStackJsonAdapterMixin",
     "mixins.RegistryMixin",
@@ -34,17 +35,17 @@
     "mixins.PlayerRendererMixin",
     "mixins.RenderEngineMixin",
     "mixins.RenderGlobalMixin",
+    "mixins.commands.CommandsClientMixin",
     "mixins.network.MinecraftMixin",
     "mixins.registry.MinecraftMixin",
-    "mixins.version.NetClientHandlerMixin",
-    "mixins.commands.CommandsClientMixin"
+    "mixins.version.NetClientHandlerMixin"
   ],
   "server": [
     "mixins.MinecraftServerMixin",
+    "mixins.commands.CommandsServerMixin",
     "mixins.network.MinecraftServerMixin",
     "mixins.registry.MinecraftServerMixin",
-    "mixins.version.NetLoginHandlerMixin",
-    "mixins.commands.CommandsServerMixin"
+    "mixins.version.NetLoginHandlerMixin"
   ],
   "injectors": {
     "defaultRequire": 1