Paper/Spigot-Server-Patches/0395-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/server/InteractionResultWrapper.java b/src/main/java/net/minecraft/server/InteractionResultWrapper.java
index d59a0b739c0b8787029969a14002042e5c288ae8..8b2fc1c0e608c911b2cdc95ef134f84e3760c05d 100644
--- a/src/main/java/net/minecraft/server/InteractionResultWrapper.java
+++ b/src/main/java/net/minecraft/server/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/server/ItemEgg.java b/src/main/java/net/minecraft/server/ItemEgg.java
index f028cb04d692f848a4682aa2eeac2174eb0f6769..6ddb0237c013e5c40d6c28a300f33443f6f703a5 100644
--- a/src/main/java/net/minecraft/server/ItemEgg.java
+++ b/src/main/java/net/minecraft/server/ItemEgg.java
@@ -16,21 +16,35 @@ 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 EntityPlayer) {
+                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+                }
+
+                world.playSound((EntityHuman) null, entityhuman.locX(), entityhuman.locY(), entityhuman.locZ(), SoundEffects.ENTITY_EGG_THROW, SoundCategory.PLAYERS, 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 InteractionResultWrapper.fail(itemstack);
+                return new InteractionResultWrapper<ItemStack>(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/server/ItemEnderPearl.java b/src/main/java/net/minecraft/server/ItemEnderPearl.java
index aa7356e6a18c0bf72314e92809a4eab320d3695f..0e154ee2976694dacf8d41fcd831f21fbbda13af 100644
--- a/src/main/java/net/minecraft/server/ItemEnderPearl.java
+++ b/src/main/java/net/minecraft/server/ItemEnderPearl.java
@@ -16,22 +16,37 @@ 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 EntityPlayer) {
+                    ((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 / (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 EntityPlayer) {
                     ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
                 }
-                return new InteractionResultWrapper(EnumInteractionResult.FAIL, itemstack);
+                return new InteractionResultWrapper<ItemStack>(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/server/ItemExpBottle.java b/src/main/java/net/minecraft/server/ItemExpBottle.java
index 07e12714d064a2ccc7a3a50fbb88517f9a3b8b78..10abf20e907f1ea25797ff33d181de7eaed9a9da 100644
--- a/src/main/java/net/minecraft/server/ItemExpBottle.java
+++ b/src/main/java/net/minecraft/server/ItemExpBottle.java
@@ -15,19 +15,38 @@ 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/server/ItemLingeringPotion.java b/src/main/java/net/minecraft/server/ItemLingeringPotion.java
index 685d958994bc35ad5eceba629e6743b41e2cc04b..58f7191a6980265e8fab17cf39769bbbca0ee105 100644
--- a/src/main/java/net/minecraft/server/ItemLingeringPotion.java
+++ b/src/main/java/net/minecraft/server/ItemLingeringPotion.java
@@ -8,7 +8,12 @@ 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/server/ItemPotionThrowable.java b/src/main/java/net/minecraft/server/ItemPotionThrowable.java
index dee3d4042b0cd1ace86fe1d80d894d0cc48cf941..9c84de77df7e32915a633b92c842cfb69e30e0d0 100644
--- a/src/main/java/net/minecraft/server/ItemPotionThrowable.java
+++ b/src/main/java/net/minecraft/server/ItemPotionThrowable.java
@@ -15,13 +15,31 @@ 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/server/ItemSnowball.java b/src/main/java/net/minecraft/server/ItemSnowball.java
index 19ac8cc57d6400e7574dd475dd21f2f48a954324..4242b5c4ed1e7d546fee7e2b3892b7b25e1259ff 100644
--- a/src/main/java/net/minecraft/server/ItemSnowball.java
+++ b/src/main/java/net/minecraft/server/ItemSnowball.java
@@ -17,14 +17,20 @@ 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 EntityPlayer) {  // Paper
+                    ((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 EntityPlayer) {
-                ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
+            } else { // Paper
+                if (entityhuman instanceof EntityPlayer) ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory(); // Paper
+                return new InteractionResultWrapper<ItemStack>(EnumInteractionResult.FAIL, itemstack); // Paper
             }
         }
         // CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/ItemSplashPotion.java b/src/main/java/net/minecraft/server/ItemSplashPotion.java
index 3574cf875c6284687c10637159ec96a823ade2dc..c919a402e80a5c6b17fdbd99e110be1abefda747 100644
--- a/src/main/java/net/minecraft/server/ItemSplashPotion.java
+++ b/src/main/java/net/minecraft/server/ItemSplashPotion.java
@@ -8,7 +8,12 @@ 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
     }
 }