Added EquipmentChangeEvent (#3411)

src/main/java/net/minecraftforge/event/entity/living/LivingEquipmentChangeEvent.java

@@ -0,0 +1,61 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2016.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.event.entity.living;
+
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.inventory.EntityEquipmentSlot;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.eventhandler.Cancelable;
+
+/**
+ * {@link LivingEquipmentChangeEvent} is fired when the Equipment of a Entity changes. <br>
+ * This event is fired whenever changes in Equipment are detected in {@link EntityLivingBase#onUpdate()}. <br>
+ * This also includes entities joining the World, as well as being cloned. <br>
+ * This event is fired on server-side only. <br>
+ * <br>
+ * {@link #slot} contains the affected {@link EntityEquipmentSlot}. <br>
+ * {@link #from} contains the {@link ItemStack} that was equipped previously. <br>
+ * {@link #to} contains the {@link ItemStack} that is equipped now. <br>
+ * <br>
+ * This event is not {@link Cancelable}. <br>
+ * <br>
+ * This event does not have a result. {@link HasResult} <br>
+ * <br>
+ * This event is fired on the {@link MinecraftForge#EVENT_BUS}.
+ **/
+public class LivingEquipmentChangeEvent extends LivingEvent
+{
+    private final EntityEquipmentSlot slot;
+    private final ItemStack from;
+    private final ItemStack to;
+
+    public LivingEquipmentChangeEvent(EntityLivingBase entity, EntityEquipmentSlot slot, ItemStack from, ItemStack to)
+    {
+        super(entity);
+        this.slot = slot;
+        this.from = from;
+        this.to = to;
+    }
+
+    public EntityEquipmentSlot getSlot() { return this.slot; }
+    public ItemStack getFrom() { return this.from; }
+    public ItemStack getTo() { return this.to; }
+}