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Implement a fallback search tree for the recipe book
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forge/src/main/java/org/embeddedt/modernfix/forge/searchtree/RecipeBookSearchTree.java
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package org.embeddedt.modernfix.forge.searchtree; | ||
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import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap; | ||
import net.minecraft.client.gui.screens.recipebook.RecipeCollection; | ||
import net.minecraft.client.searchtree.SearchTree; | ||
import net.minecraft.world.item.Item; | ||
import net.minecraft.world.item.ItemStack; | ||
import org.embeddedt.modernfix.searchtree.DummySearchTree; | ||
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import java.util.ArrayList; | ||
import java.util.Collections; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.stream.Collectors; | ||
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public class RecipeBookSearchTree extends DummySearchTree<RecipeCollection> { | ||
private final SearchTree<ItemStack> stackCollector; | ||
private Map<Item, List<RecipeCollection>> collectionsByItem = null; | ||
private final List<RecipeCollection> allCollections = new ArrayList<>(); | ||
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public RecipeBookSearchTree(SearchTree<ItemStack> stackCollector) { | ||
this.stackCollector = stackCollector; | ||
} | ||
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private Map<Item, List<RecipeCollection>> populateCollectionMap() { | ||
Map<Item, List<RecipeCollection>> collections = this.collectionsByItem; | ||
if(collections == null) { | ||
collections = new Object2ObjectOpenHashMap<>(); | ||
Map<Item, List<RecipeCollection>> finalCollection = collections; | ||
for(RecipeCollection collection : allCollections) { | ||
collection.getRecipes().stream().map(recipe -> recipe.getResultItem().getItem()).distinct().forEach(item -> { | ||
finalCollection.computeIfAbsent(item, k -> new ArrayList<>()).add(collection); | ||
}); | ||
} | ||
this.collectionsByItem = collections; | ||
} | ||
return collections; | ||
} | ||
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@Override | ||
public void add(RecipeCollection pObj) { | ||
this.allCollections.add(pObj); | ||
} | ||
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@Override | ||
public void clear() { | ||
this.allCollections.clear(); | ||
} | ||
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@Override | ||
public void refresh() { | ||
this.collectionsByItem = null; | ||
} | ||
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@Override | ||
public List<RecipeCollection> search(String pSearchText) { | ||
// Avoid constructing the recipe collection map until the first real search | ||
if(pSearchText.trim().length() == 0) { | ||
return this.allCollections; | ||
} | ||
List<ItemStack> stacks = stackCollector.search(pSearchText); | ||
Map<Item, List<RecipeCollection>> collections = this.populateCollectionMap(); | ||
return stacks.stream().map(ItemStack::getItem).distinct().flatMap(item -> collections.getOrDefault(item, Collections.emptyList()).stream()).collect(Collectors.toList()); | ||
} | ||
} |