Merge pull request #1723 from Geforce132/master

Add an EntityMountEvent.

src/main/java/net/minecraftforge/event/ForgeEventFactory.java

@@ -39,6 +39,7 @@ import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.util.BlockSnapshot;
 import net.minecraftforge.event.brewing.PotionBrewEvent;
 import net.minecraftforge.event.entity.EntityEvent;
+import net.minecraftforge.event.entity.EntityMountEvent;
 import net.minecraftforge.event.entity.EntityStruckByLightningEvent;
 import net.minecraftforge.event.entity.PlaySoundAtEntityEvent;
 import net.minecraftforge.event.entity.item.ItemExpireEvent;
@@ -341,6 +342,19 @@ public class ForgeEventFactory
     {
         return !MinecraftForge.EVENT_BUS.post(new EntityInteractEvent(player, entity));
     }
+    
+    public static boolean canMountEntity(Entity entityMounting, Entity entityBeingMounted, boolean isMounting)
+    {
+        boolean isCanceled = MinecraftForge.EVENT_BUS.post(new EntityMountEvent(entityMounting, entityBeingMounted, entityMounting.worldObj, isMounting));
+        
+        if(isCanceled)
+        {
+            entityMounting.setPositionAndRotation(entityMounting.posX, entityMounting.posY, entityMounting.posZ, entityMounting.prevRotationYaw, entityMounting.prevRotationPitch);
+            return false;
+        }
+        else         
+            return true;       
+    }
 
     public static EnumStatus onPlayerSleepInBed(EntityPlayer player, BlockPos pos)
     {

src/main/java/net/minecraftforge/event/entity/EntityMountEvent.java

@@ -0,0 +1,52 @@
+package net.minecraftforge.event.entity;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityLivingBase;
+import net.minecraft.world.World;
+import net.minecraftforge.fml.common.eventhandler.Cancelable;
+import net.minecraftforge.fml.common.eventhandler.Event.HasResult;
+
+/**
+ * This event gets fired whenever a entity mounts/dismounts another entity.<br>
+ * <b>entityBeingMounted can be null</b>, be sure to check for that.
+ * <br>
+ * <br>
+ * This event is {@link Cancelable}.<br>
+ * If this event is canceled, the entity does not mount/dismount the other entity.<br>
+ * <br>
+ * This event does not have a result. {@link HasResult}<br>
+ *<br>
+ * This event is fired on the {@link MinecraftForge#EVENT_BUS}.
+ * 
+ */
+
+@Cancelable
+public class EntityMountEvent extends EntityEvent
+{
+    
+    public final Entity entityMounting;
+    public final Entity entityBeingMounted;
+    public final World worldObj;
+    
+    private final boolean isMounting;
+
+    public EntityMountEvent(Entity entityMounting, Entity entityBeingMounted, World entityWorld, boolean isMounting)
+    {
+        super(entityMounting);
+        this.entityMounting = entityMounting;
+        this.entityBeingMounted = entityBeingMounted;
+        this.worldObj = entityWorld;
+        this.isMounting = isMounting;
+    }
+    
+    public boolean isMounting()
+    {
+        return isMounting;
+    }
+    
+    public boolean isDismounting()
+    {
+        return !isMounting;
+    }
+
+}