Fix ClassCastException in recipe (#168)

arclight-common/src/main/java/io/izzel/arclight/common/mixin/bukkit/RecipeIteratorMixin.java

@@ -0,0 +1,37 @@
+package io.izzel.arclight.common.mixin.bukkit;
+
+import io.izzel.arclight.common.bridge.item.crafting.IRecipeBridge;
+import net.minecraft.item.crafting.IRecipe;
+import net.minecraft.item.crafting.IRecipeType;
+import net.minecraft.util.ResourceLocation;
+import org.bukkit.craftbukkit.v.inventory.RecipeIterator;
+import org.bukkit.inventory.Recipe;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Overwrite;
+import org.spongepowered.asm.mixin.Shadow;
+
+import java.util.Iterator;
+import java.util.Map;
+
+@Mixin(value = RecipeIterator.class, remap = false)
+public class RecipeIteratorMixin {
+
+    // @formatter:off
+    @Shadow private Iterator<IRecipe<?>> current;
+    @Shadow @Final private Iterator<Map.Entry<IRecipeType<?>, Map<ResourceLocation, IRecipe<?>>>> recipes;
+    // @formatter:on
+
+    @Overwrite
+    public boolean hasNext() {
+        return (current != null && current.hasNext()) || recipes.hasNext();
+    }
+
+    @Overwrite
+    public Recipe next() {
+        if (current == null || !current.hasNext()) {
+            current = recipes.next().getValue().values().iterator();
+        }
+        return ((IRecipeBridge) current.next()).bridge$toBukkitRecipe();
+    }
+}

arclight-common/src/main/resources/mixins.arclight.bukkit.json

@@ -36,6 +36,7 @@
     "MaterialMixin",
     "PluginClassLoaderMixin",
     "PotionEffectTypeMixin",
+    "RecipeIteratorMixin",
     "WatchdogThreadMixin"
   ]
 }