From bd104fbae065d69c10d1e1dfcc3599ca0156eff9 Mon Sep 17 00:00:00 2001
From: Joshua Goins <josh@redstrate.com>
Date: Sat, 8 Jul 2023 15:29:00 -0400
Subject: [PATCH] Add support for loading character .dat files

---
 src/chardat.rs | 106 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/lib.rs     |   3 ++
 src/race.rs    |   6 +--
 3 files changed, 112 insertions(+), 3 deletions(-)
 create mode 100644 src/chardat.rs

diff --git a/src/chardat.rs b/src/chardat.rs
new file mode 100644
index 0000000..7953a94
--- /dev/null
+++ b/src/chardat.rs
@@ -0,0 +1,106 @@
+use crate::gamedata::MemoryBuffer;
+use crate::sha1::Sha1;
+use binrw::{binread, binrw};
+use binrw::BinRead;
+use std::fs::read;
+use std::io::{Cursor, Seek, SeekFrom};
+use std::ops::Sub;
+use crate::race::{Gender, Race, Subrace};
+
+fn convert_dat_race(x: u8) -> Race {
+    match x {
+        1 => Race::Hyur,
+        2 => Race::Elezen,
+        3 => Race::Lalafell,
+        4 => Race::Miqote,
+        5 => Race::Roegadyn,
+        6 => Race::AuRa,
+        7 => Race::Hrothgar,
+        8 => Race::Viera,
+        _ => Race::Hyur
+    }
+}
+
+fn convert_dat_gender(x: u8) -> Gender {
+    match x {
+        0 => Gender::Male,
+        1 => Gender::Female,
+        _ => Gender::Male
+    }
+}
+
+fn convert_dat_subrace(x: u8) -> Subrace {
+    match x {
+        1 => Subrace::Midlander,
+        2 => Subrace::Highlander,
+        3 => Subrace::Wildwood,
+        4 => Subrace::Duskwight,
+        5 => Subrace::Plainsfolk,
+        6 => Subrace::Dunesfolk,
+        7 => Subrace::Seeker,
+        8 => Subrace::Keeper,
+        9 => Subrace:: SeaWolf,
+        10 => Subrace::Hellsguard,
+        11 => Subrace::Raen,
+        12 => Subrace::Xaela,
+        13 => Subrace::Hellion,
+        14 => Subrace::Lost,
+        15 => Subrace::Rava,
+        16 => Subrace::Veena,
+        _ => Subrace::Midlander
+    }
+}
+
+#[binread]
+#[br(little)]
+#[repr(C)]
+#[br(magic = 0x2013FF14u32)]
+#[derive(Debug)]
+pub struct CharDat { // version 4
+    pub version: u32,
+    #[br(pad_after = 4)]
+    pub checksum: u32,
+
+    #[br(map = | x: u8 | convert_dat_race(x) )]
+    pub race: Race,
+    #[br(map = | x: u8 | convert_dat_gender(x) )]
+    pub gender: Gender,
+    pub age: u8, // Normal = 1, Old = 3, Young = 4
+    pub height: u8,
+    #[br(map = | x: u8 | convert_dat_subrace(x) )]
+    pub subrace: Subrace,
+    pub head: u8,
+    pub hair: u8,
+    #[br(map = | x: u8 | x != 0 )]
+    pub enable_highlights: bool,
+    pub skin_tone: u8,
+    pub right_eye_color: u8,
+    pub hair_tone: u8,
+    pub highlights: u8,
+    pub facial_features: u8,
+    pub limbal_eyes: u8,
+    pub eyebrows: u8,
+    pub left_eye_color: u8,
+    pub eyes: u8,
+    pub nose: u8,
+    pub jaw: u8,
+    pub mouth: u8,
+    pub lips_tone_fur_pattern: u8,
+    pub tail: u8,
+    pub face_paint: u8,
+    pub bust: u8,
+    pub face_paint_color: u8,
+    pub voice: u8,
+
+    #[br(pad_before = 1)]
+    pub timestamp: [u8; 4]
+}
+
+impl CharDat {
+    /// Parses an existing dat file.
+    pub fn from_existing(buffer: &MemoryBuffer) -> Option<CharDat> {
+        let mut cursor = Cursor::new(buffer);
+
+        Some(CharDat::read(&mut cursor).ok()?)
+    }
+}
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index edbde95..232bad8 100755
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -76,5 +76,8 @@ pub mod mtrl;
 /// Reading character parameter files (CMP)
 pub mod cmp;
 
+/// Reading character save datas files (DAT)
+pub mod chardat;
+
 mod crc;
 mod sha1;
diff --git a/src/race.rs b/src/race.rs
index 1b60e3b..554c8c2 100755
--- a/src/race.rs
+++ b/src/race.rs
@@ -1,4 +1,4 @@
-#[derive(PartialEq, Eq)]
+#[derive(PartialEq, Eq, Debug)]
 #[repr(u8)]
 /// Gender of the character.
 pub enum Gender {
@@ -6,7 +6,7 @@ pub enum Gender {
     Female,
 }
 
-#[derive(PartialEq, Eq)]
+#[derive(PartialEq, Eq, Debug)]
 #[repr(u8)]
 /// The race's "subrace". Each race has two subraces, which are actually identical (even down to the ids!)
 /// with the exception of Hyurs, which have two unique subraces that are really two separate races.
@@ -29,7 +29,7 @@ pub enum Subrace {
     Veena,
 }
 
-#[derive(PartialEq, Eq)]
+#[derive(PartialEq, Eq, Debug)]
 #[repr(u8)]
 /// The major races of Eorzea.
 pub enum Race {