From ba6f174058dcfbc0e37aaa9af7e731bb18e17842 Mon Sep 17 00:00:00 2001
From: Camotoy <20743703+DoctorMacc@users.noreply.github.com>
Date: Fri, 2 Oct 2020 15:44:46 -0400
Subject: [PATCH] Add support for fishing rods pulling Bedrock players (#1355)

Fishing rods pulling players is a clientside feature on Java. On Bedrock, a SetEntityMotionPacket is sent to the client. Therefore this PR implements the Java fishing rod pulling mechanics and sends it off to Bedrock, which sends MovePlayerPackets that are sent to the server.
---
 .../entity/JavaEntityStatusTranslator.java     | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/connector/src/main/java/org/geysermc/connector/network/translators/java/entity/JavaEntityStatusTranslator.java b/connector/src/main/java/org/geysermc/connector/network/translators/java/entity/JavaEntityStatusTranslator.java
index ac2a80f7a..c3fbd2e92 100644
--- a/connector/src/main/java/org/geysermc/connector/network/translators/java/entity/JavaEntityStatusTranslator.java
+++ b/connector/src/main/java/org/geysermc/connector/network/translators/java/entity/JavaEntityStatusTranslator.java
@@ -30,8 +30,8 @@ import com.nukkitx.protocol.bedrock.data.entity.EntityData;
 import com.nukkitx.protocol.bedrock.data.entity.EntityEventType;
 import com.nukkitx.protocol.bedrock.packet.EntityEventPacket;
 import com.nukkitx.protocol.bedrock.packet.SetEntityDataPacket;
+import com.nukkitx.protocol.bedrock.packet.SetEntityMotionPacket;
 import org.geysermc.connector.entity.Entity;
-import org.geysermc.connector.entity.PlayerEntity;
 import org.geysermc.connector.entity.type.EntityType;
 import org.geysermc.connector.network.session.GeyserSession;
 import org.geysermc.connector.network.translators.PacketTranslator;
@@ -96,8 +96,20 @@ public class JavaEntityStatusTranslator extends PacketTranslator<ServerEntitySta
                 entityEventPacket.setType(EntityEventType.USE_ITEM);
                 break;
             case FISHING_HOOK_PULL_PLAYER:
-                entityEventPacket.setType(EntityEventType.FISH_HOOK_TEASE); //TODO: CHECK
-                break;
+                // Player is pulled from a fishing rod
+                // The physics of this are clientside on Java
+                long pulledById = entity.getMetadata().getLong(EntityData.TARGET_EID);
+                if (session.getPlayerEntity().getGeyserId() == pulledById) {
+                    Entity hookOwner = session.getEntityCache().getEntityByGeyserId(entity.getMetadata().getLong(EntityData.OWNER_EID));
+                    if (hookOwner != null) {
+                        // https://minecraft.gamepedia.com/Fishing_Rod#Hooking_mobs_and_other_entities
+                        SetEntityMotionPacket motionPacket = new SetEntityMotionPacket();
+                        motionPacket.setRuntimeEntityId(session.getPlayerEntity().getGeyserId());
+                        motionPacket.setMotion(hookOwner.getPosition().sub(session.getPlayerEntity().getPosition()).mul(0.1f));
+                        session.sendUpstreamPacket(motionPacket);
+                    }
+                }
+                return;
             case TAMEABLE_TAMING_FAILED:
                 entityEventPacket.setType(EntityEventType.TAME_FAILED);
                 break;