Paper/nms-patches/EntityFishingHook.patch

--- a/net/minecraft/server/EntityFishingHook.java
+++ b/net/minecraft/server/EntityFishingHook.java
@@ -4,6 +4,11 @@
 import java.util.Iterator;
 import java.util.List;
 import javax.annotation.Nullable;
+// CraftBukkit start
+import org.bukkit.entity.Player;
+import org.bukkit.entity.FishHook;
+import org.bukkit.event.player.PlayerFishEvent;
+// CraftBukkit end
 
 public class EntityFishingHook extends Entity {
 
@@ -204,6 +209,7 @@
         }, RayTrace.BlockCollisionOption.COLLIDER, true);
 
         if (movingobjectposition.getType() != MovingObjectPosition.EnumMovingObjectType.MISS) {
+            org.bukkit.craftbukkit.event.CraftEventFactory.callProjectileHitEvent(this, movingobjectposition); // CraftBukkit - Call event
             if (movingobjectposition.getType() == MovingObjectPosition.EnumMovingObjectType.ENTITY) {
                 this.hooked = ((MovingObjectPositionEntity) movingobjectposition).getEntity();
                 this.n();
@@ -236,6 +242,10 @@
             if (this.ao <= 0) {
                 this.ap = 0;
                 this.aq = 0;
+                // CraftBukkit start
+                PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.FAILED_ATTEMPT);
+                this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+                // CraftBukkit end
             } else {
                 this.setMot(this.getMot().add(0.0D, -0.2D * (double) this.random.nextFloat() * (double) this.random.nextFloat(), 0.0D));
             }
@@ -271,6 +281,13 @@
                         worldserver.a(Particles.FISHING, d0, d1, d2, 0, (double) (-f4), 0.01D, (double) f3, 1.0D);
                     }
                 } else {
+                    // CraftBukkit start
+                    PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.BITE);
+                    this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+                    if (playerFishEvent.isCancelled()) {
+                        return;
+                    }
+                    // CraftBukkit end
                     Vec3D vec3d = this.getMot();
 
                     this.setMot(vec3d.x, (double) (-0.4F * MathHelper.a(this.random, 0.6F, 1.0F)), vec3d.z);
@@ -327,6 +344,14 @@
             int i = 0;
 
             if (this.hooked != null) {
+                // CraftBukkit start
+                PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), this.hooked.getBukkitEntity(), (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_ENTITY);
+                this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+
+                if (playerFishEvent.isCancelled()) {
+                    return 0;
+                }
+                // CraftBukkit end
                 this.reel();
                 CriterionTriggers.D.a((EntityPlayer) this.owner, itemstack, this, Collections.emptyList());
                 this.world.broadcastEntityEffect(this, (byte) 31);
@@ -342,6 +367,15 @@
                 while (iterator.hasNext()) {
                     ItemStack itemstack1 = (ItemStack) iterator.next();
                     EntityItem entityitem = new EntityItem(this.world, this.locX(), this.locY(), this.locZ(), itemstack1);
+                    // CraftBukkit start
+                    PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), entityitem.getBukkitEntity(), (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.CAUGHT_FISH);
+                    playerFishEvent.setExpToDrop(this.random.nextInt(6) + 1);
+                    this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+
+                    if (playerFishEvent.isCancelled()) {
+                        return 0;
+                    }
+                    // CraftBukkit end
                     double d0 = this.owner.locX() - this.locX();
                     double d1 = this.owner.locY() - this.locY();
                     double d2 = this.owner.locZ() - this.locZ();
@@ -349,7 +383,11 @@
 
                     entityitem.setMot(d0 * 0.1D, d1 * 0.1D + Math.sqrt(Math.sqrt(d0 * d0 + d1 * d1 + d2 * d2)) * 0.08D, d2 * 0.1D);
                     this.world.addEntity(entityitem);
-                    this.owner.world.addEntity(new EntityExperienceOrb(this.owner.world, this.owner.locX(), this.owner.locY() + 0.5D, this.owner.locZ() + 0.5D, this.random.nextInt(6) + 1));
+                    // CraftBukkit start - this.random.nextInt(6) + 1 -> playerFishEvent.getExpToDrop()
+                    if (playerFishEvent.getExpToDrop() > 0) {
+                        this.owner.world.addEntity(new EntityExperienceOrb(this.owner.world, this.owner.locX(), this.owner.locY() + 0.5D, this.owner.locZ() + 0.5D, playerFishEvent.getExpToDrop()));
+                    }
+                    // CraftBukkit end
                     if (itemstack1.getItem().a(TagsItem.FISHES)) {
                         this.owner.a(StatisticList.FISH_CAUGHT, 1);
                     }
@@ -359,8 +397,25 @@
             }
 
             if (this.isInGround) {
+                // CraftBukkit start
+                PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.IN_GROUND);
+                this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+
+                if (playerFishEvent.isCancelled()) {
+                    return 0;
+                }
+                // CraftBukkit end
                 i = 2;
             }
+            // CraftBukkit start
+            if (i == 0) {
+                PlayerFishEvent playerFishEvent = new PlayerFishEvent((Player) this.owner.getBukkitEntity(), null, (FishHook) this.getBukkitEntity(), PlayerFishEvent.State.REEL_IN);
+                this.world.getServer().getPluginManager().callEvent(playerFishEvent);
+                if (playerFishEvent.isCancelled()) {
+                    return 0;
+                }
+            }
+            // CraftBukkit end
 
             this.die();
             return i;