From a756af5f307a6a59e7fbc99068c3e7ba4bdce9af Mon Sep 17 00:00:00 2001
From: jake <jake@sharnoth.com>
Date: Sun, 8 Sep 2019 23:43:07 -0700
Subject: [PATCH] character/guildcard structs

---
 src/character/character.rs |  21 +++++++-
 src/character/guildcard.rs |  27 ++++++++++
 src/packet/login.rs        | 100 +++++++++++++++++++++++++++++++++++++
 3 files changed, 147 insertions(+), 1 deletion(-)

diff --git a/src/character/character.rs b/src/character/character.rs
index 6c2cf3f..a2f384a 100644
--- a/src/character/character.rs
+++ b/src/character/character.rs
@@ -2,7 +2,8 @@
 // TODO: section_id to SectionId enum
 // TODO: techniques to enum?
 
-#[derive(Default)]
+#[derive(Default, Copy, Clone, PartialEq, Debug)]
+#[repr(C)]
 pub struct Character {
     pub atp: u16,
     pub mst: u16,
@@ -75,6 +76,8 @@ impl Character {
     }
 }
 
+#[derive(Copy, Clone, PartialEq, Debug)]
+#[repr(C)]
 pub struct SelectScreenCharacter {
     pub exp: u32,
     pub level: u32,
@@ -102,3 +105,19 @@ pub struct SelectScreenCharacter {
     pub name: [u16; 16],
     pub play_time: u32,
 }
+
+impl SelectScreenCharacter {
+    pub const SIZE: usize = 0x7C;
+
+    pub fn from_le_bytes(bytes: [u8; 0x7C]) -> Result<SelectScreenCharacter, crate::PacketParseError> {
+        unsafe {
+            Ok(std::mem::transmute(bytes))
+        }
+    }
+
+    pub fn to_le_bytes(&self) -> [u8; 0x7C] {
+        unsafe {
+            std::mem::transmute(*self)
+        }
+    }
+}
diff --git a/src/character/guildcard.rs b/src/character/guildcard.rs
index 82c01dd..6c456c9 100644
--- a/src/character/guildcard.rs
+++ b/src/character/guildcard.rs
@@ -112,3 +112,30 @@ impl Default for GuildCardData {
     }
 }
 
+impl GuildCardData {
+    pub fn from_bytes(bytes: [u8; 0xD590]) -> GuildCardData {
+        unsafe {
+            std::mem::transmute(bytes)
+        }
+    }
+
+    pub fn as_bytes(&self) -> [u8; 0xD590] {
+        unsafe {
+            std::mem::transmute(*self)
+        }
+    }
+}
+
+
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn guildcard_default_zero() {
+        let gc = super::GuildCardData::default();
+        let bytes = gc.as_bytes();
+        for k in bytes.iter() {
+            assert!(*k == 0);
+        }
+    }
+}
diff --git a/src/packet/login.rs b/src/packet/login.rs
index 589faac..988eeac 100644
--- a/src/packet/login.rs
+++ b/src/packet/login.rs
@@ -1,9 +1,12 @@
 use psopacket::pso_packet;
 use crate::{PSOPacket, PacketParseError};
 
+use crate::character::character::SelectScreenCharacter;
+
 use std::io::{Read, Seek, SeekFrom};
 
 pub const PATCH_FILE_CHUNK_SIZE: u16 = 0x8000; // 32kb
+pub const GUILD_CARD_CHUNK_SIZE: usize = 0x6800;
 
 #[allow(non_camel_case_types)]
 type u8_str = u8;
@@ -228,6 +231,103 @@ pub struct CharAck {
 }
 
 
+#[pso_packet(0xE5)]
+pub struct CharacterPreview {
+    pub flag: u32,
+    pub slot: u32,
+    pub character: SelectScreenCharacter,
+}
+
+#[pso_packet(0x3E8)]
+pub struct GuildcardDataRequest {
+    flag: u32,
+}
+
+#[pso_packet(0x1DC)]
+pub struct GuildcardDataHeader {
+    flag: u32,
+    one: u32,
+    len: u32,
+    checksum: u32,
+}
+
+impl GuildcardDataHeader {
+    pub fn new(len: usize, checksum: u32) -> GuildcardDataHeader {
+        GuildcardDataHeader {
+            flag: 0,
+            one: 1,
+            len: len as u32,
+            checksum: checksum
+        }
+    }
+}
+
+#[pso_packet(0x3DC)]
+pub struct GuildcardDataChunkRequest {
+    flag: u32,
+    _unknown: u32,
+    pub chunk: u32,
+    pub again: u32,
+}
+
+pub struct GuildcardDataChunk {
+    flag: u32,
+    _unknown: u32,
+    chunk: u32,
+    pub buffer: [u8; GUILD_CARD_CHUNK_SIZE],
+
+    len: usize,
+}
+
+impl GuildcardDataChunk {
+    pub fn new(chunk: u32, buffer: [u8; GUILD_CARD_CHUNK_SIZE], len: usize) -> GuildcardDataChunk {
+        GuildcardDataChunk {
+            flag: 0,
+            _unknown: 0,
+            chunk: chunk as u32,
+            buffer: buffer,
+            len: len,
+        }
+    }
+}
+
+impl PSOPacket for GuildcardDataChunk {
+    fn from_bytes(_data: &[u8]) -> Result<GuildcardDataChunk, PacketParseError> {
+        unimplemented!();
+    }
+
+    fn as_bytes(&self) -> Vec<u8> {
+        let mut buf: Vec<u8> = Vec::new();
+        buf.extend_from_slice(&u32::to_le_bytes(self.flag));
+        buf.extend_from_slice(&u32::to_le_bytes(self._unknown));
+        buf.extend_from_slice(&u32::to_le_bytes(self.chunk));
+        buf.extend_from_slice(&self.buffer[0..self.len]);
+        while buf.len() % 4 != 0 {
+            buf.push(0);
+        }
+
+        let pkt_len = (buf.len() + 4) as u16;
+        let mut prebuf: Vec<u8> = Vec::new();
+        prebuf.extend_from_slice(&u16::to_le_bytes(pkt_len));
+        prebuf.extend_from_slice(&u16::to_le_bytes(0x2DC));
+        prebuf.append(&mut buf);
+        prebuf
+    }
+}
+
+impl std::fmt::Debug for GuildcardDataChunk {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(f, "packet GuildcardDataChunk {{\n").unwrap();
+        write!(f, "    flag: {:?}\n", self.flag).unwrap();
+        write!(f, "    _unknown: {:X?}\n", self._unknown).unwrap();
+        write!(f, "    chunk: {:X?}\n", self.chunk).unwrap();
+        write!(f, "    buffer: [0..{:X}]\n", self.len).unwrap();
+        write!(f, "}}")
+    }
+}
+
+
+
 #[cfg(test)]
 mod tests {
     #[test]