From 89db2ce920446dda8ce8fb7977bf035fae863264 Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Sat, 29 Mar 2025 16:40:33 -0400
Subject: [PATCH] Fix crash when entering certain zones, remove stuff doesn't
 work

There's some fadein/fadeout nonsense that isn't really doing anything right now,
and can be killed.
---
 resources/opcodes.json  |  5 +++++
 src/bin/kawari-world.rs | 46 +++--------------------------------------
 src/world/ipc/mod.rs    |  4 ++++
 3 files changed, 12 insertions(+), 43 deletions(-)

diff --git a/resources/opcodes.json b/resources/opcodes.json
index c8a09e6..b6183b7 100644
--- a/resources/opcodes.json
+++ b/resources/opcodes.json
@@ -256,6 +256,11 @@
             "name": "EventRelatedUnk",
             "opcode": 861,
             "size": 16
+        },
+        {
+            "name": "Unk19",
+            "opcode": 379,
+            "size": 16
         }
     ],
     "ServerLobbyIpcType": [
diff --git a/src/bin/kawari-world.rs b/src/bin/kawari-world.rs
index f7360ff..ab6a54f 100644
--- a/src/bin/kawari-world.rs
+++ b/src/bin/kawari-world.rs
@@ -719,7 +719,6 @@ async fn main() {
                                                 .unwrap()
                                                 .find_exit_box(*exit_box_id)
                                                 .unwrap();
-                                            tracing::info!("exit box: {:#?}", exit_box);
 
                                             // find the pop range on the other side
                                             let new_zone = Zone::load(exit_box.territory_type);
@@ -736,48 +735,6 @@ async fn main() {
                                             new_territory = exit_box.territory_type;
                                         }
 
-                                        // fade out?
-                                        {
-                                            let ipc = ServerZoneIpcSegment {
-                                                op_code: ServerZoneIpcType::PrepareZoning,
-                                                timestamp: timestamp_secs(),
-                                                data: ServerZoneIpcData::PrepareZoning {
-                                                    unk: [0x01000000, 0, 0, 0],
-                                                },
-                                                ..Default::default()
-                                            };
-
-                                            connection
-                                                .send_segment(PacketSegment {
-                                                    source_actor: connection.player_data.actor_id,
-                                                    target_actor: connection.player_data.actor_id,
-                                                    segment_type: SegmentType::Ipc { data: ipc },
-                                                })
-                                                .await;
-                                        }
-
-                                        // fade out? x2
-                                        {
-                                            let ipc = ServerZoneIpcSegment {
-                                                op_code: ServerZoneIpcType::PrepareZoning,
-                                                timestamp: timestamp_secs(),
-                                                data: ServerZoneIpcData::PrepareZoning {
-                                                    unk: [0, 0x00000085, 0x00030000, 0x000008ff], // last thing is probably a float?
-                                                },
-                                                ..Default::default()
-                                            };
-
-                                            connection
-                                                .send_segment(PacketSegment {
-                                                    source_actor: connection.player_data.actor_id,
-                                                    target_actor: connection.player_data.actor_id,
-                                                    segment_type: SegmentType::Ipc { data: ipc },
-                                                })
-                                                .await;
-                                        }
-
-                                        tracing::info!("sending them to {:#?}", new_territory);
-
                                         connection.change_zone(new_territory).await;
                                     }
                                     ClientZoneIpcData::ActionRequest(request) => {
@@ -885,6 +842,9 @@ async fn main() {
                                             event.scene_finished(&mut lua_player, *unk2);
                                         }
                                     }
+                                    ClientZoneIpcData::Unk19 { .. } => {
+                                        tracing::info!("Recieved Unk19!");
+                                    }
                                 }
                             }
                             SegmentType::KeepAlive { id, timestamp } => {
diff --git a/src/world/ipc/mod.rs b/src/world/ipc/mod.rs
index 6fcb451..9aa7a62 100644
--- a/src/world/ipc/mod.rs
+++ b/src/world/ipc/mod.rs
@@ -362,6 +362,10 @@ pub enum ClientZoneIpcData {
         unk3: u32,
         unk4: u32,
     },
+    #[br(pre_assert(*magic == ClientZoneIpcType::Unk19))]
+    Unk19 {
+        unk: [u8; 16], // TODO: unknown
+    },
 }
 
 #[cfg(test)]