[1.12] Add Advancement Event (#4467)

patches/minecraft/net/minecraft/advancements/PlayerAdvancements.java.patch

@@ -10,3 +10,12 @@
          boolean flag = false;
          AdvancementProgress advancementprogress = this.func_192747_a(p_192750_1_);
          boolean flag1 = advancementprogress.func_192105_a();
+@@ -214,6 +217,8 @@
+                 {
+                     this.field_192756_d.func_184103_al().func_148539_a(new TextComponentTranslation("chat.type.advancement." + p_192750_1_.func_192068_c().func_192291_d().func_192307_a(), new Object[] {this.field_192762_j.func_145748_c_(), p_192750_1_.func_193123_j()}));
+                 }
++
++                net.minecraftforge.common.ForgeHooks.onAdvancement(this.field_192762_j, p_192750_1_);
+             }
+         }
+ 

src/main/java/net/minecraftforge/common/ForgeHooks.java

@@ -127,6 +127,7 @@ import net.minecraftforge.event.entity.player.AttackEntityEvent;
 import net.minecraftforge.event.entity.player.CriticalHitEvent;
 import net.minecraftforge.event.entity.player.PlayerEvent;
 import net.minecraftforge.event.entity.player.PlayerInteractEvent;
+import net.minecraftforge.event.entity.player.AdvancementEvent;
 import net.minecraftforge.event.world.BlockEvent;
 import net.minecraftforge.event.world.NoteBlockEvent;
 import net.minecraftforge.fluids.IFluidBlock;
@@ -1372,4 +1373,9 @@ public class ForgeHooks
         if (recipes.size() > 0 || display.size() > 0)
             connection.sendPacket(new SPacketRecipeBook(state, recipes, display, isGuiOpen, isFilteringCraftable));
     }
+
+    public static void onAdvancement(EntityPlayerMP player, Advancement advancement)
+    {
+        MinecraftForge.EVENT_BUS.post(new AdvancementEvent(player, advancement));
+    }
 }

src/main/java/net/minecraftforge/event/entity/player/AdvancementEvent.java

@@ -0,0 +1,50 @@
+/*
+ * 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.player;
+
+import net.minecraft.advancements.Advancement;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.common.eventhandler.Cancelable;
+
+/**
+ * This event is fired when a player gets an advancement.
+ * <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 AdvancementEvent extends PlayerEvent
+{
+    private final Advancement advancement;
+
+    public AdvancementEvent(EntityPlayer player, Advancement advancement)
+    {
+        super(player);
+        this.advancement = advancement;
+    }
+
+    public Advancement getAdvancement()
+    {
+        return advancement;
+    }
+}

src/test/java/net/minecraftforge/debug/AdvancementEventTest.java

@@ -0,0 +1,36 @@
+package net.minecraftforge.debug;
+
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.event.entity.player.AdvancementEvent;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+import org.apache.logging.log4j.Logger;
+
+@Mod(modid = AdvancementEventTest.MOD_ID, name = "AdvancementEvent test mod", version = "1.0.0", acceptableRemoteVersions = "*")
+public class AdvancementEventTest
+{
+    static final String MOD_ID = "advancement_event_test";
+    private static final boolean ENABLED = false;
+    private static Logger logger;
+
+    @Mod.EventHandler
+    public void preInit(FMLPreInitializationEvent event)
+    {
+        logger = event.getModLog();
+
+        if (ENABLED)
+        {
+            MinecraftForge.EVENT_BUS.register(AdvancementEventTest.class);
+        }
+    }
+
+    @SubscribeEvent
+    public static void onAdvancementEvent(AdvancementEvent event)
+    {
+        if (event.getAdvancement().getDisplay() != null && event.getAdvancement().getDisplay().shouldAnnounceToChat())
+        {
+            logger.info("{} got the {} advancement", event.getEntityPlayer().getDisplayNameString(), event.getAdvancement().getDisplayText().getUnformattedText());
+        }
+    }
+}