SPIGOT-1571: Add Entity Glide Events.

3 files changed, 93 insertions, 52 deletions

diff --git a/nms-patches/EntityHuman.patch b/nms-patches/EntityHuman.patch
index 0d34b3d8..38a51c8d 100644
--- a/nms-patches/EntityHuman.patch
+++ b/nms-patches/EntityHuman.patch
@@ -1,12 +1,13 @@
 --- a/net/minecraft/server/EntityHuman.java
 +++ b/net/minecraft/server/EntityHuman.java
-@@ -9,6 +9,18 @@
+@@ -9,6 +9,19 @@
  import java.util.List;
  import java.util.UUID;
  
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.entity.CraftHumanEntity;
 +import org.bukkit.craftbukkit.entity.CraftItem;
++import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.entity.Player;
 +import org.bukkit.event.entity.EntityCombustByEntityEvent;
 +import org.bukkit.event.player.PlayerBedEnterEvent;
@@ -19,7 +20,7 @@
  public abstract class EntityHuman extends EntityLiving {
  
      private static final DataWatcherObject<Float> a = DataWatcher.a(EntityHuman.class, DataWatcherRegistry.c);
-@@ -19,7 +31,7 @@
+@@ -19,7 +32,7 @@
      private InventoryEnderChest enderChest = new InventoryEnderChest();
      public Container defaultContainer;
      public Container activeContainer;
@@ -28,7 +29,7 @@
      protected int bv;
      public float bw;
      public float bx;
-@@ -52,6 +64,17 @@
+@@ -52,6 +65,17 @@
      private final ItemCooldown bU = this.l();
      public EntityFishingHook hookedFish;
  
@@ -46,7 +47,7 @@
      protected ItemCooldown l() {
          return new ItemCooldown();
      }
-@@ -301,7 +324,8 @@
+@@ -301,7 +325,8 @@
  
          if (this.world.getDifficulty() == EnumDifficulty.PEACEFUL && this.world.getGameRules().getBoolean("naturalRegeneration")) {
              if (this.getHealth() < this.getMaxHealth() && this.ticksLived % 20 == 0) {
@@ -56,7 +57,7 @@
              }
  
              if (this.foodData.c() && this.ticksLived % 10 == 0) {
-@@ -325,7 +349,7 @@
+@@ -325,7 +350,7 @@
  
          this.l((float) attributeinstance.getValue());
          float f = MathHelper.sqrt(this.motX * this.motX + this.motZ * this.motZ);
@@ -65,7 +66,7 @@
  
          if (f > 0.1F) {
              f = 0.1F;
-@@ -416,28 +440,35 @@
+@@ -416,28 +441,35 @@
      public void b(Entity entity, int i) {
          if (entity != this) {
              this.addScore(i);
@@ -108,7 +109,7 @@
      private Collection<ScoreboardObjective> d(Entity entity) {
          String s = entity instanceof EntityHuman ? entity.getName() : entity.getUniqueID().toString();
          ScoreboardTeam scoreboardteam = this.getScoreboard().getPlayerTeam(this.getName());
-@@ -471,6 +502,7 @@
+@@ -471,6 +503,7 @@
      }
  
      public EntityItem a(boolean flag) {
@@ -116,7 +117,7 @@
          return this.a(this.inventory.splitStack(this.inventory.itemInHandIndex, flag && this.inventory.getItemInHand() != null ? this.inventory.getItemInHand().count : 1), false, true);
      }
  
-@@ -513,6 +545,30 @@
+@@ -513,6 +546,30 @@
                  entityitem.motZ += Math.sin((double) f1) * (double) f;
              }
  
@@ -147,7 +148,7 @@
              ItemStack itemstack1 = this.a(entityitem);
  
              if (flag1) {
-@@ -612,6 +668,13 @@
+@@ -612,6 +669,13 @@
              this.a(true, true, false);
          }
  
@@ -161,7 +162,7 @@
          if (nbttagcompound.hasKeyOfType("SpawnX", 99) && nbttagcompound.hasKeyOfType("SpawnY", 99) && nbttagcompound.hasKeyOfType("SpawnZ", 99)) {
              this.e = new BlockPosition(nbttagcompound.getInt("SpawnX"), nbttagcompound.getInt("SpawnY"), nbttagcompound.getInt("SpawnZ"));
              this.f = nbttagcompound.getBoolean("SpawnForced");
-@@ -649,6 +712,12 @@
+@@ -649,6 +713,12 @@
          this.foodData.b(nbttagcompound);
          this.abilities.a(nbttagcompound);
          nbttagcompound.set("EnderItems", this.enderChest.h());
@@ -174,7 +175,7 @@
      }
  
      public boolean damageEntity(DamageSource damagesource, float f) {
-@@ -667,7 +736,7 @@
+@@ -667,7 +737,7 @@
  
                  if (damagesource.r()) {
                      if (this.world.getDifficulty() == EnumDifficulty.PEACEFUL) {
@@ -183,7 +184,7 @@
                      }
  
                      if (this.world.getDifficulty() == EnumDifficulty.EASY) {
-@@ -679,7 +748,7 @@
+@@ -679,7 +749,7 @@
                      }
                  }
  
@@ -192,7 +193,7 @@
                      return false;
                  } else {
                      Entity entity = damagesource.getEntity();
-@@ -695,10 +764,29 @@
+@@ -695,10 +765,29 @@
      }
  
      public boolean a(EntityHuman entityhuman) {
@@ -225,7 +226,7 @@
      }
  
      protected void damageArmor(float f) {
-@@ -742,7 +830,12 @@
+@@ -742,7 +831,12 @@
          return (float) i / (float) this.inventory.armor.length;
      }
  
@@ -239,7 +240,7 @@
          if (!this.isInvulnerable(damagesource)) {
              f = this.applyArmorModifier(damagesource, f);
              f = this.applyMagicModifier(damagesource, f);
-@@ -762,6 +855,7 @@
+@@ -762,6 +856,7 @@
  
              }
          }
@@ -247,7 +248,7 @@
      }
  
      public void openSign(TileEntitySign tileentitysign) {}
-@@ -884,8 +978,15 @@
+@@ -884,8 +979,15 @@
                      if (entity instanceof EntityLiving) {
                          f3 = ((EntityLiving) entity).getHealth();
                          if (j > 0 && !entity.isBurning()) {
@@ -265,7 +266,7 @@
                          }
                      }
  
-@@ -925,11 +1026,28 @@
+@@ -925,11 +1027,28 @@
                          }
  
                          if (entity instanceof EntityPlayer && entity.velocityChanged) {
@@ -294,7 +295,7 @@
                          }
  
                          if (flag2) {
-@@ -991,7 +1109,8 @@
+@@ -991,7 +1110,8 @@
  
                          if (itemstack3 != null && object instanceof EntityLiving) {
                              itemstack3.a((EntityLiving) object, this);
@@ -304,7 +305,7 @@
                                  this.a(EnumHand.MAIN_HAND, (ItemStack) null);
                              }
                          }
-@@ -1001,7 +1120,14 @@
+@@ -1001,7 +1121,14 @@
  
                              this.a(StatisticList.y, Math.round(f5 * 10.0F));
                              if (j > 0) {
@@ -320,7 +321,7 @@
                              }
  
                              if (this.world instanceof WorldServer && f5 > 2.0F) {
-@@ -1090,6 +1216,20 @@
+@@ -1090,6 +1217,20 @@
              this.stopRiding();
          }
  
@@ -341,7 +342,7 @@
          this.setSize(0.2F, 0.2F);
          if (this.world.isLoaded(blockposition)) {
              EnumDirection enumdirection = (EnumDirection) this.world.getType(blockposition).get(BlockFacingHorizontal.FACING);
-@@ -1172,6 +1312,23 @@
+@@ -1172,6 +1313,23 @@
              this.world.everyoneSleeping();
          }
  
@@ -365,7 +366,7 @@
          this.sleepTicks = flag ? 0 : 100;
          if (flag2) {
              this.setRespawnPosition(this.bedPosition, false);
-@@ -1222,9 +1379,11 @@
+@@ -1222,9 +1380,11 @@
          if (blockposition != null) {
              this.e = blockposition;
              this.f = flag;
@@ -377,3 +378,11 @@
          }
  
      }
+@@ -1266,6 +1426,7 @@
+             this.motY = d3 * 0.6D;
+             this.aQ = f2;
+             this.fallDistance = 0.0F;
++            if (!CraftEventFactory.callToggleGlideEvent(this, false).isCancelled()) // CraftBukkit
+             this.setFlag(7, false);
+         } else {
+             super.g(f, f1);
diff --git a/nms-patches/EntityLiving.patch b/nms-patches/EntityLiving.patch
index 4a861dd0..6ab6a64c 100644
--- a/nms-patches/EntityLiving.patch
+++ b/nms-patches/EntityLiving.patch
@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/EntityLiving.java
 +++ b/net/minecraft/server/EntityLiving.java
-@@ -9,6 +9,20 @@
+@@ -9,6 +9,21 @@
  import java.util.Random;
  import java.util.UUID;
  
@@ -11,6 +11,7 @@
 +import org.bukkit.craftbukkit.attribute.CraftAttributeMap;
 +import org.bukkit.craftbukkit.event.CraftEventFactory;
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
++import org.bukkit.entity.LivingEntity;
 +import org.bukkit.entity.Player;
 +import org.bukkit.event.entity.EntityDamageEvent;
 +import org.bukkit.event.entity.EntityDamageEvent.DamageModifier;
@@ -21,7 +22,7 @@
  public abstract class EntityLiving extends Entity {
  
      private static final UUID a = UUID.fromString("662A6B8D-DA3E-4C1C-8813-96EA6097278D");
-@@ -80,6 +94,13 @@
+@@ -80,6 +95,13 @@
      protected int bn;
      protected int bo;
      private BlockPosition bC;
@@ -35,7 +36,7 @@
  
      public void Q() {
          this.damageEntity(DamageSource.OUT_OF_WORLD, Float.MAX_VALUE);
-@@ -88,7 +109,8 @@
+@@ -88,7 +110,8 @@
      public EntityLiving(World world) {
          super(world);
          this.initAttributes();
@@ -45,7 +46,7 @@
          this.i = true;
          this.aL = (float) ((Math.random() + 1.0D) * 0.009999999776482582D);
          this.setPosition(this.locX, this.locY, this.locZ);
-@@ -125,7 +147,13 @@
+@@ -125,7 +148,13 @@
                  double d1 = Math.min((double) (0.2F + f / 15.0F), 2.5D);
                  int i = (int) (150.0D * d1);
  
@@ -60,7 +61,7 @@
              }
          }
  
-@@ -183,7 +211,11 @@
+@@ -183,7 +212,11 @@
                      this.stopRiding();
                  }
              } else {
@@ -73,7 +74,7 @@
              }
  
              if (!this.world.isClientSide) {
-@@ -240,6 +272,18 @@
+@@ -240,6 +273,18 @@
          this.world.methodProfiler.b();
      }
  
@@ -92,7 +93,7 @@
      protected void b(BlockPosition blockposition) {
          int i = EnchantmentManager.a(Enchantments.j, this);
  
-@@ -255,19 +299,19 @@
+@@ -255,19 +300,19 @@
  
      protected void bC() {
          ++this.deathTicks;
@@ -121,7 +122,7 @@
  
              this.die();
  
-@@ -421,6 +465,17 @@
+@@ -421,6 +466,17 @@
              }
          }
  
@@ -139,7 +140,7 @@
          if (nbttagcompound.hasKeyOfType("Health", 99)) {
              this.setHealth(nbttagcompound.getFloat("Health"));
          }
-@@ -436,9 +491,15 @@
+@@ -436,9 +492,15 @@
  
      }
  
@@ -155,7 +156,7 @@
          while (iterator.hasNext()) {
              MobEffectList mobeffectlist = (MobEffectList) iterator.next();
              MobEffect mobeffect = (MobEffect) this.effects.get(mobeffectlist);
-@@ -452,6 +513,16 @@
+@@ -452,6 +514,16 @@
                  this.a(mobeffect, false);
              }
          }
@@ -172,7 +173,7 @@
  
          if (this.updateEffects) {
              if (!this.world.isClientSide) {
-@@ -548,6 +619,12 @@
+@@ -548,6 +620,12 @@
      }
  
      public void addEffect(MobEffect mobeffect) {
@@ -185,7 +186,7 @@
          if (this.d(mobeffect)) {
              MobEffect mobeffect1 = (MobEffect) this.effects.get(mobeffect.getMobEffect());
  
-@@ -579,6 +656,12 @@
+@@ -579,6 +657,12 @@
      }
  
      public MobEffect c(MobEffectList mobeffectlist) {
@@ -198,7 +199,7 @@
          return (MobEffect) this.effects.remove(mobeffectlist);
      }
  
-@@ -618,20 +701,52 @@
+@@ -618,20 +702,52 @@
  
      }
  
@@ -252,7 +253,7 @@
          this.datawatcher.set(EntityLiving.HEALTH, Float.valueOf(MathHelper.a(f, 0.0F, this.getMaxHealth())));
      }
  
-@@ -647,7 +762,8 @@
+@@ -647,7 +763,8 @@
              } else if (damagesource.o() && this.hasEffect(MobEffects.FIRE_RESISTANCE)) {
                  return false;
              } else {
@@ -262,7 +263,7 @@
                      this.getEquipment(EnumItemSlot.HEAD).damage((int) (f * 4.0F + this.random.nextFloat() * f * 2.0F), this);
                      f *= 0.75F;
                  }
-@@ -673,19 +789,38 @@
+@@ -673,19 +790,38 @@
  
                  if ((float) this.noDamageTicks > (float) this.maxNoDamageTicks / 2.0F) {
                      if (f <= this.lastDamage) {
@@ -303,7 +304,7 @@
                  this.az = 0.0F;
                  Entity entity = damagesource.getEntity();
  
-@@ -825,6 +960,12 @@
+@@ -825,6 +961,12 @@
                      boolean flag = this.lastDamageByPlayerTime > 0;
  
                      this.a(flag, i, damagesource);
@@ -316,7 +317,7 @@
                  }
              }
  
-@@ -912,8 +1053,13 @@
+@@ -912,8 +1054,13 @@
          int i = MathHelper.f((f - 3.0F - f2) * f1);
  
          if (i > 0) {
@@ -331,7 +332,7 @@
              int j = MathHelper.floor(this.locX);
              int k = MathHelper.floor(this.locY - 0.20000000298023224D);
              int l = MathHelper.floor(this.locZ);
-@@ -940,20 +1086,20 @@
+@@ -940,20 +1087,20 @@
  
      protected float applyArmorModifier(DamageSource damagesource, float f) {
          if (!damagesource.ignoresArmor()) {
@@ -355,7 +356,7 @@
                  i = (this.getEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
                  int j = 25 - i;
                  float f1 = f * (float) j;
-@@ -974,22 +1120,122 @@
+@@ -974,22 +1121,122 @@
          }
      }
  
@@ -485,7 +486,7 @@
      }
  
      public CombatTracker getCombatTracker() {
-@@ -1055,6 +1301,7 @@
+@@ -1055,6 +1302,7 @@
      public AttributeMapBase getAttributeMap() {
          if (this.bp == null) {
              this.bp = new AttributeMapServer();
@@ -493,7 +494,23 @@
          }
  
          return this.bp;
-@@ -1702,6 +1949,13 @@
+@@ -1329,6 +1577,7 @@
+                 }
+ 
+                 if (this.onGround && !this.world.isClientSide) {
++                    if (getFlag(7) && !CraftEventFactory.callToggleGlideEvent(this, false).isCancelled()) // CraftBukkit
+                     this.setFlag(7, false);
+                 }
+             } else {
+@@ -1689,6 +1938,7 @@
+         }
+ 
+         if (!this.world.isClientSide) {
++            if (!CraftEventFactory.callToggleGlideEvent(this, flag).isCancelled()) // CraftBukkit
+             this.setFlag(7, flag);
+         }
+ 
+@@ -1702,6 +1952,13 @@
          if (!list.isEmpty()) {
              for (int i = 0; i < list.size(); ++i) {
                  Entity entity = (Entity) list.get(i);
@@ -507,7 +524,7 @@
  
                  this.C(entity);
              }
-@@ -1918,7 +2172,22 @@
+@@ -1918,7 +2175,22 @@
      protected void v() {
          if (this.bm != null && this.cs()) {
              this.a(this.bm, 16);
diff --git a/nms-patches/EntityPlayer.patch b/nms-patches/EntityPlayer.patch
index b0098900..71dc7f66 100644
--- a/nms-patches/EntityPlayer.patch
+++ b/nms-patches/EntityPlayer.patch
@@ -422,23 +422,24 @@
          this.playerConnection.sendPacket(new PacketPlayOutCloseWindow(this.activeContainer.windowId));
          this.s();
      }
-@@ -741,7 +916,16 @@
+@@ -741,8 +916,17 @@
  
      public void triggerHealthUpdate() {
          this.lastHealthSent = -1.0E8F;
 +        this.lastSentExp = -1; // CraftBukkit - Added to reset
-+    }
-+
+     }
+ 
 +    // CraftBukkit start - Support multi-line messages
 +    public void sendMessage(IChatBaseComponent[] ichatbasecomponent) {
 +        for (IChatBaseComponent component : ichatbasecomponent) {
 +            this.sendMessage(component);
 +        }
-     }
++    }
 +    // CraftBukkit end
- 
++
      public void b(IChatBaseComponent ichatbasecomponent) {
          this.playerConnection.sendPacket(new PacketPlayOutChat(ichatbasecomponent));
+     }
 @@ -802,6 +986,8 @@
      }
  
@@ -486,10 +487,24 @@
      }
  
      public void a(EnumHand enumhand) {
-@@ -962,4 +1156,127 @@
+@@ -955,11 +1149,139 @@
+     }
+ 
+     public void M() {
++        if (!CraftEventFactory.callToggleGlideEvent(this, true).isCancelled()) // CraftBukkit
          this.setFlag(7, true);
-         this.setFlag(7, false);
      }
+ 
+     public void N() {
+-        this.setFlag(7, true);
+-        this.setFlag(7, false);
++        // CraftBukkit start
++        if (!CraftEventFactory.callToggleGlideEvent(this, false).isCancelled()) {
++            this.setFlag(7, true);
++            this.setFlag(7, false);
++        }
++        // CraftBukkit end
++    }
 +
 +    // CraftBukkit start - Add per-player time and weather.
 +    public long timeOffset = 0;
@@ -611,6 +626,6 @@
 +    @Override
 +    public CraftPlayer getBukkitEntity() {
 +        return (CraftPlayer) super.getBukkitEntity();
-+    }
+     }
 +    // CraftBukkit end
  }