PaperMC/Spigot-Server-Patches/0386-PlayerLaunchProjectileEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Sat, 21 Jul 2018 03:11:03 -0500
Subject: [PATCH] PlayerLaunchProjectileEvent


diff --git a/src/main/java/net/minecraft/world/InteractionResultWrapper.java b/src/main/java/net/minecraft/world/InteractionResultWrapper.java
index dd17c111670e637b574f5c7f38d27848900ce194..8cecc3d909a51b1892b4a299a5e6ec3518db9b39 100644
--- a/src/main/java/net/minecraft/world/InteractionResultWrapper.java
+++ b/src/main/java/net/minecraft/world/InteractionResultWrapper.java
@@ -10,6 +10,7 @@ public class InteractionResultWrapper<T> {
         this.b = t0;
     }
 
+    public EnumInteractionResult getResult() { return this.a(); } // Paper - OBFHELPER
     public EnumInteractionResult a() {
         return this.a;
     }
diff --git a/src/main/java/net/minecraft/world/item/ItemEgg.java b/src/main/java/net/minecraft/world/item/ItemEgg.java
index 2083ab6e0dc7e48d409a5ee33e712e34abd6f6bf..4b1a6ee784da4595931396a905f1358b7a13f3dd 100644
--- a/src/main/java/net/minecraft/world/item/ItemEgg.java
+++ b/src/main/java/net/minecraft/world/item/ItemEgg.java
@@ -25,21 +25,35 @@ public class ItemEgg extends Item {
 
             entityegg.setItem(itemstack);
             entityegg.a(entityhuman, entityhuman.pitch, entityhuman.yaw, 0.0F, 1.5F, 1.0F);
-            // CraftBukkit start
-            if (!world.addEntity(entityegg)) {
+            // Paper start
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Projectile) entityegg.getBukkitEntity());
+            if (event.callEvent() && world.addEntity(entityegg)) {
+                if (event.shouldConsume() && !entityhuman.abilities.canInstantlyBuild) {
+                    itemstack.subtract(1);
+                } else if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {
+                    ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+
+                world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EGG_THROW, SoundCategory.PLAYERS, 0.5F, 0.4F / (net.minecraft.world.entity.Entity.SHARED_RANDOM.nextFloat() * 0.4F + 0.8F));
+                entityhuman.b(StatisticList.ITEM_USED.b(this));
+            } else {
                 if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {
                     ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
                 }
-                return InteractionResultWrapper.fail(itemstack);
+                return new InteractionResultWrapper<ItemStack>(net.minecraft.world.EnumInteractionResult.FAIL, itemstack);
             }
-            // CraftBukkit end
+            // Paper end
+
+
         }
         world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EGG_THROW, SoundCategory.PLAYERS, 0.5F, 0.4F / (ItemEgg.RANDOM.nextFloat() * 0.4F + 0.8F)); // CraftBukkit - from above
 
+        /* // Paper start - moved up
         entityhuman.b(StatisticList.ITEM_USED.b(this));
         if (!entityhuman.abilities.canInstantlyBuild) {
             itemstack.subtract(1);
         }
+        */ // Paper end
 
         return InteractionResultWrapper.a(itemstack, world.s_());
     }
diff --git a/src/main/java/net/minecraft/world/item/ItemEnderPearl.java b/src/main/java/net/minecraft/world/item/ItemEnderPearl.java
index 5349282b9a5b43c4c3539e1677971463e2ca5a17..9896d77381e7fadf1ef2619210713e190c1445d0 100644
--- a/src/main/java/net/minecraft/world/item/ItemEnderPearl.java
+++ b/src/main/java/net/minecraft/world/item/ItemEnderPearl.java
@@ -25,22 +25,37 @@ public class ItemEnderPearl extends Item {
 
             entityenderpearl.setItem(itemstack);
             entityenderpearl.a(entityhuman, entityhuman.pitch, entityhuman.yaw, 0.0F, 1.5F, 1.0F);
-            if (!world.addEntity(entityenderpearl)) {
+            // Paper start
+                com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Projectile) entityenderpearl.getBukkitEntity());
+            if (event.callEvent() && world.addEntity(entityenderpearl)) {
+                if (event.shouldConsume() && !entityhuman.abilities.canInstantlyBuild) {
+                    itemstack.subtract(1);
+                } else if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {
+                    ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+
+                world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_ENDER_PEARL_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (net.minecraft.world.entity.Entity.SHARED_RANDOM.nextFloat() * 0.4F + 0.8F));
+                entityhuman.b(StatisticList.ITEM_USED.b(this));
+                entityhuman.getCooldownTracker().setCooldown(this, 20);
+            } else {
+                // Paper end
                 if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {
                     ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
                 }
-                return InteractionResultWrapper.fail(itemstack);
+                return new InteractionResultWrapper<ItemStack>(net.minecraft.world.EnumInteractionResult.FAIL, itemstack);
             }
         }
 
-        world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_ENDER_PEARL_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemEnderPearl.RANDOM.nextFloat() * 0.4F + 0.8F));
-        entityhuman.getCooldownTracker().setCooldown(this, 20);
-        // CraftBukkit end
-
-        entityhuman.b(StatisticList.ITEM_USED.b(this));
-        if (!entityhuman.abilities.canInstantlyBuild) {
-            itemstack.subtract(1);
-        }
+        // Paper start - moved up
+//        world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_ENDER_PEARL_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemEnderPearl.RANDOM.nextFloat() * 0.4F + 0.8F));
+//        entityhuman.getCooldownTracker().setCooldown(this, 20);
+//        // CraftBukkit end
+//
+//        entityhuman.b(StatisticList.ITEM_USED.b(this));
+//        if (!entityhuman.abilities.canInstantlyBuild) {
+//            itemstack.subtract(1);
+//        }
+        // Paper end - moved up
 
         return InteractionResultWrapper.a(itemstack, world.s_());
     }
diff --git a/src/main/java/net/minecraft/world/item/ItemExpBottle.java b/src/main/java/net/minecraft/world/item/ItemExpBottle.java
index 3f41fe5bf1a0cc283d6a72824779026fdad75708..cf36ec4769dc316e3ed16262043cb78cbba340ab 100644
--- a/src/main/java/net/minecraft/world/item/ItemExpBottle.java
+++ b/src/main/java/net/minecraft/world/item/ItemExpBottle.java
@@ -1,10 +1,13 @@
 package net.minecraft.world.item;
 
+import net.minecraft.server.level.EntityPlayer;
 import net.minecraft.sounds.SoundCategory;
 import net.minecraft.sounds.SoundEffects;
 import net.minecraft.stats.StatisticList;
 import net.minecraft.world.EnumHand;
+import net.minecraft.world.EnumInteractionResult;
 import net.minecraft.world.InteractionResultWrapper;
+import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.player.EntityHuman;
 import net.minecraft.world.entity.projectile.EntityThrownExpBottle;
 import net.minecraft.world.level.World;
@@ -24,19 +27,38 @@ public class ItemExpBottle extends Item {
     public InteractionResultWrapper<ItemStack> a(World world, EntityHuman entityhuman, EnumHand enumhand) {
         ItemStack itemstack = entityhuman.b(enumhand);
 
-        world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EXPERIENCE_BOTTLE_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemExpBottle.RANDOM.nextFloat() * 0.4F + 0.8F));
+        //world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EXPERIENCE_BOTTLE_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemExpBottle.RANDOM.nextFloat() * 0.4F + 0.8F));  // Paper - moved down
         if (!world.isClientSide) {
             EntityThrownExpBottle entitythrownexpbottle = new EntityThrownExpBottle(world, entityhuman);
 
             entitythrownexpbottle.setItem(itemstack);
             entitythrownexpbottle.a(entityhuman, entityhuman.pitch, entityhuman.yaw, -20.0F, 0.7F, 1.0F);
-            world.addEntity(entitythrownexpbottle);
+            // Paper start
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Projectile) entitythrownexpbottle.getBukkitEntity());
+            if (event.callEvent() && world.addEntity(entitythrownexpbottle)) {
+                if (event.shouldConsume() && !entityhuman.abilities.canInstantlyBuild) {
+                    itemstack.subtract(1);
+                } else if (entityhuman instanceof EntityPlayer) {
+                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+
+                world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EXPERIENCE_BOTTLE_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (Entity.SHARED_RANDOM.nextFloat() * 0.4F + 0.8F));
+                entityhuman.b(StatisticList.ITEM_USED.b(this));
+            } else {
+                if (entityhuman instanceof EntityPlayer) {
+                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+                    return new InteractionResultWrapper<ItemStack>(EnumInteractionResult.FAIL, itemstack);
+            }
+            // Paper end
         }
 
+        /* // Paper start - moved up
         entityhuman.b(StatisticList.ITEM_USED.b(this));
         if (!entityhuman.abilities.canInstantlyBuild) {
             itemstack.subtract(1);
         }
+        */ // Paper end
 
         return InteractionResultWrapper.a(itemstack, world.s_());
     }
diff --git a/src/main/java/net/minecraft/world/item/ItemFireworks.java b/src/main/java/net/minecraft/world/item/ItemFireworks.java
index 79e9be800385b94c4493bd8970620d76bfbd65ae..e7f958d137257da912ce9b83db017b4423959943 100644
--- a/src/main/java/net/minecraft/world/item/ItemFireworks.java
+++ b/src/main/java/net/minecraft/world/item/ItemFireworks.java
@@ -3,6 +3,7 @@ package net.minecraft.world.item;
 import java.util.Arrays;
 import java.util.Comparator;
 import net.minecraft.core.EnumDirection;
+import net.minecraft.server.level.EntityPlayer;
 import net.minecraft.world.EnumHand;
 import net.minecraft.world.EnumInteractionResult;
 import net.minecraft.world.InteractionResultWrapper;
@@ -29,8 +30,12 @@ public class ItemFireworks extends Item {
             EntityFireworks entityfireworks = new EntityFireworks(world, itemactioncontext.getEntity(), vec3d.x + (double) enumdirection.getAdjacentX() * 0.15D, vec3d.y + (double) enumdirection.getAdjacentY() * 0.15D, vec3d.z + (double) enumdirection.getAdjacentZ() * 0.15D, itemstack);
             entityfireworks.spawningEntity = itemactioncontext.getEntity().getUniqueID(); // Paper
 
-            world.addEntity(entityfireworks);
-            itemstack.subtract(1);
+            // Paper start - PlayerLaunchProjectileEvent
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) itemactioncontext.getEntity().getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Firework) entityfireworks.getBukkitEntity());
+            if (!event.callEvent() || !world.addEntity(entityfireworks)) return EnumInteractionResult.PASS;
+            if (event.shouldConsume() && !itemactioncontext.getEntity().abilities.canInstantlyBuild) itemstack.subtract(1);
+            else if (itemactioncontext.getEntity() instanceof EntityPlayer) ((EntityPlayer) itemactioncontext.getEntity()).getBukkitEntity().updateInventory();
+            // Paper end
         }
 
         return EnumInteractionResult.a(world.isClientSide);
diff --git a/src/main/java/net/minecraft/world/item/ItemLingeringPotion.java b/src/main/java/net/minecraft/world/item/ItemLingeringPotion.java
index a75f374f0639e8143772aa863666afe25d2020cf..0e073a8c23d24afb8b0198a9cfd8dc7d0b9d0a6b 100644
--- a/src/main/java/net/minecraft/world/item/ItemLingeringPotion.java
+++ b/src/main/java/net/minecraft/world/item/ItemLingeringPotion.java
@@ -3,6 +3,7 @@ package net.minecraft.world.item;
 import net.minecraft.sounds.SoundCategory;
 import net.minecraft.sounds.SoundEffects;
 import net.minecraft.world.EnumHand;
+import net.minecraft.world.EnumInteractionResult;
 import net.minecraft.world.InteractionResultWrapper;
 import net.minecraft.world.entity.player.EntityHuman;
 import net.minecraft.world.level.World;
@@ -15,7 +16,12 @@ public class ItemLingeringPotion extends ItemPotionThrowable {
 
     @Override
     public InteractionResultWrapper<ItemStack> a(World world, EntityHuman entityhuman, EnumHand enumhand) {
-        world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_LINGERING_POTION_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemLingeringPotion.RANDOM.nextFloat() * 0.4F + 0.8F));
-        return super.a(world, entityhuman, enumhand);
+        // Paper start
+        InteractionResultWrapper<ItemStack> wrapper = super.a(world, entityhuman, enumhand);
+        if (wrapper.getResult() != EnumInteractionResult.FAIL) {
+            world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_LINGERING_POTION_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemLingeringPotion.RANDOM.nextFloat() * 0.4F + 0.8F));
+        }
+        return wrapper;
+        // Paper end
     }
 }
diff --git a/src/main/java/net/minecraft/world/item/ItemPotionThrowable.java b/src/main/java/net/minecraft/world/item/ItemPotionThrowable.java
index d050243946ad7023d5dd3958d7056cddcaf185a4..27c61fc4e61b0d76565ca6893514b3c73247c954 100644
--- a/src/main/java/net/minecraft/world/item/ItemPotionThrowable.java
+++ b/src/main/java/net/minecraft/world/item/ItemPotionThrowable.java
@@ -1,7 +1,9 @@
 package net.minecraft.world.item;
 
+import net.minecraft.server.level.EntityPlayer;
 import net.minecraft.stats.StatisticList;
 import net.minecraft.world.EnumHand;
+import net.minecraft.world.EnumInteractionResult;
 import net.minecraft.world.InteractionResultWrapper;
 import net.minecraft.world.entity.player.EntityHuman;
 import net.minecraft.world.entity.projectile.EntityPotion;
@@ -22,13 +24,31 @@ public class ItemPotionThrowable extends ItemPotion {
 
             entitypotion.setItem(itemstack);
             entitypotion.a(entityhuman, entityhuman.pitch, entityhuman.yaw, -20.0F, 0.5F, 1.0F);
-            world.addEntity(entitypotion);
+            // Paper start
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Projectile) entitypotion.getBukkitEntity());
+            if (event.callEvent() && world.addEntity(entitypotion)) {
+                if (event.shouldConsume() && !entityhuman.abilities.canInstantlyBuild) {
+                    itemstack.subtract(1);
+                } else if (entityhuman instanceof EntityPlayer) {
+                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+
+                entityhuman.b(StatisticList.ITEM_USED.b(this));
+            } else {
+                if (entityhuman instanceof EntityPlayer) {
+                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+                    return new InteractionResultWrapper<ItemStack>(EnumInteractionResult.FAIL, itemstack);
+            }
+            // Paper end
         }
 
+        /* // Paper start - moved up
         entityhuman.b(StatisticList.ITEM_USED.b(this));
         if (!entityhuman.abilities.canInstantlyBuild) {
             itemstack.subtract(1);
         }
+        */ // Paper end
 
         return InteractionResultWrapper.a(itemstack, world.s_());
     }
diff --git a/src/main/java/net/minecraft/world/item/ItemSnowball.java b/src/main/java/net/minecraft/world/item/ItemSnowball.java
index e5200b2a7d6d5c2d549e585ed157ec5217edae8e..8a1d59cb1ea5a8959c52272aa762ec35307246d7 100644
--- a/src/main/java/net/minecraft/world/item/ItemSnowball.java
+++ b/src/main/java/net/minecraft/world/item/ItemSnowball.java
@@ -26,14 +26,20 @@ public class ItemSnowball extends Item {
 
             entitysnowball.setItem(itemstack);
             entitysnowball.a(entityhuman, entityhuman.pitch, entityhuman.yaw, 0.0F, 1.5F, 1.0F);
-            if (world.addEntity(entitysnowball)) {
-                if (!entityhuman.abilities.canInstantlyBuild) {
+            // Paper start
+            com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent event = new com.destroystokyo.paper.event.player.PlayerLaunchProjectileEvent((org.bukkit.entity.Player) entityhuman.getBukkitEntity(), org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(itemstack), (org.bukkit.entity.Projectile) entitysnowball.getBukkitEntity());
+            if (event.callEvent() && world.addEntity(entitysnowball)) {
+                if (event.shouldConsume() && !entityhuman.abilities.canInstantlyBuild) {
+                    // Paper end
                     itemstack.subtract(1);
+                } else if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {  // Paper
+                    ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();  // Paper
                 }
 
                 world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_SNOWBALL_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemSnowball.RANDOM.nextFloat() * 0.4F + 0.8F));
-            } else if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) {
-                ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+            } else { // Paper
+                if (entityhuman instanceof net.minecraft.server.level.EntityPlayer) ((net.minecraft.server.level.EntityPlayer) entityhuman).getBukkitEntity().updateInventory(); // Paper
+                return new InteractionResultWrapper<ItemStack>(net.minecraft.world.EnumInteractionResult.FAIL, itemstack); // Paper
             }
         }
         // CraftBukkit end
diff --git a/src/main/java/net/minecraft/world/item/ItemSplashPotion.java b/src/main/java/net/minecraft/world/item/ItemSplashPotion.java
index 98f29fac4bf087ad15f1cc7e85b408e22ec07efd..971491a461ccb7a707c6ca1a5b7c16d8823a7a80 100644
--- a/src/main/java/net/minecraft/world/item/ItemSplashPotion.java
+++ b/src/main/java/net/minecraft/world/item/ItemSplashPotion.java
@@ -3,6 +3,7 @@ package net.minecraft.world.item;
 import net.minecraft.sounds.SoundCategory;
 import net.minecraft.sounds.SoundEffects;
 import net.minecraft.world.EnumHand;
+import net.minecraft.world.EnumInteractionResult;
 import net.minecraft.world.InteractionResultWrapper;
 import net.minecraft.world.entity.player.EntityHuman;
 import net.minecraft.world.level.World;
@@ -15,7 +16,12 @@ public class ItemSplashPotion extends ItemPotionThrowable {
 
     @Override
     public InteractionResultWrapper<ItemStack> a(World world, EntityHuman entityhuman, EnumHand enumhand) {
+        // Paper start
+        InteractionResultWrapper<ItemStack> wrapper = super.a(world, entityhuman, enumhand);
+        if (wrapper.getResult() != EnumInteractionResult.FAIL) {
         world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_SPLASH_POTION_THROW, SoundCategory.PLAYERS, 0.5F, 0.4F / (ItemSplashPotion.RANDOM.nextFloat() * 0.4F + 0.8F));
-        return super.a(world, entityhuman, enumhand);
+        }
+        return wrapper;
+        // Paper end
     }
 }