Upstream Paper

src/main/java/net/minecraft/server/SlotFurnaceResult.java

@@ -0,0 +1,97 @@
+package net.minecraft.server;
+
+import java.util.Iterator;
+import java.util.Map.Entry;
+// CraftBukkit start
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.FurnaceExtractEvent;
+// CraftBukkit end
+
+public class SlotFurnaceResult extends Slot {
+
+    private final EntityHuman a;public EntityHuman getPlayer() { return a; } // Paper OBFHELPER
+    private int b;
+
+    public SlotFurnaceResult(EntityHuman entityhuman, IInventory iinventory, int i, int j, int k) {
+        super(iinventory, i, j, k);
+        this.a = entityhuman;
+    }
+
+    public boolean isAllowed(ItemStack itemstack) {
+        return false;
+    }
+
+    public ItemStack a(int i) {
+        if (this.hasItem()) {
+            this.b += Math.min(i, this.getItem().getCount());
+        }
+
+        return super.a(i);
+    }
+
+    public ItemStack a(EntityHuman entityhuman, ItemStack itemstack) {
+        this.c(itemstack);
+        super.a(entityhuman, itemstack);
+        return itemstack;
+    }
+
+    protected void a(ItemStack itemstack, int i) {
+        this.b += i;
+        this.c(itemstack);
+    }
+
+    protected void c(ItemStack itemstack) {
+        itemstack.a(this.a.world, this.a, this.b);
+        if (!this.a.world.isClientSide) {
+            Iterator iterator = ((TileEntityFurnace) this.inventory).q().entrySet().iterator();
+
+            while (iterator.hasNext()) {
+                Entry<MinecraftKey, Integer> entry = (Entry) iterator.next();
+                FurnaceRecipe furnacerecipe = (FurnaceRecipe) this.a.world.getCraftingManager().a((MinecraftKey) entry.getKey());
+                float f;
+
+                if (furnacerecipe != null) {
+                    f = furnacerecipe.g();
+                } else {
+                    f = 0.0F;
+                }
+
+                int i = (Integer) entry.getValue();
+                int j;
+
+                if (f == 0.0F) {
+                    i = 0;
+                } else if (f < 1.0F) {
+                    j = MathHelper.d((float) i * f);
+                    if (j < MathHelper.f((float) i * f) && Math.random() < (double) ((float) i * f - (float) j)) {
+                        ++j;
+                    }
+
+                    i = j;
+                }
+
+                // CraftBukkit start - fire FurnaceExtractEvent
+                Player player = (Player) a.getBukkitEntity();
+                TileEntityFurnace furnace = ((TileEntityFurnace) this.inventory);
+                org.bukkit.block.Block block = a.world.getWorld().getBlockAt(furnace.position.getX(), furnace.position.getY(), furnace.position.getZ());
+
+                if (b != 0) {
+                    FurnaceExtractEvent event = new FurnaceExtractEvent(player, block, org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(itemstack.getItem()), b, i);
+                    a.world.getServer().getPluginManager().callEvent(event);
+                    i = event.getExpToDrop();
+                }
+                // CraftBukkit end
+
+                while (i > 0) {
+                    j = EntityExperienceOrb.getOrbValue(i);
+                    i -= j;
+                    this.a.world.addEntity(new EntityExperienceOrb(this.a.world, this.a.locX, this.a.locY + 0.5D, this.a.locZ + 0.5D, j, org.bukkit.entity.ExperienceOrb.SpawnReason.FURNACE, getPlayer())); // Paper
+                }
+            }
+
+            ((RecipeHolder) this.inventory).d(this.a);
+        }
+
+        this.b = 0;
+    }
+}