From d14aea2a4ae48b8650b1c8afaa314e014223e2df Mon Sep 17 00:00:00 2001
From: Tau <tau@nowhere>
Date: Thu, 4 Apr 2019 14:28:13 -0400
Subject: [PATCH] round-trip settings load/save (ish)

---
 src/idz/decoder/saveSettings.ts  | 20 +++++++++++---------
 src/idz/encoder/loadProfile2.ts  | 25 +++++++++++++++++--------
 src/idz/handler/loadProfile.ts   | 13 ++++++++++++-
 src/idz/model/settings.ts        | 11 +++++++++++
 src/idz/request/saveSettings.ts  | 12 +++---------
 src/idz/response/loadProfile2.ts |  3 +++
 6 files changed, 57 insertions(+), 27 deletions(-)
 create mode 100644 src/idz/model/settings.ts

diff --git a/src/idz/decoder/saveSettings.ts b/src/idz/decoder/saveSettings.ts
index 33bac11..2c8d807 100644
--- a/src/idz/decoder/saveSettings.ts
+++ b/src/idz/decoder/saveSettings.ts
@@ -11,17 +11,19 @@ export function saveSettings(buf: Buffer): SaveSettingsRequest {
 
   return {
     type: "save_settings_req",
-    bgMusic: buf.readUInt16LE(0x0002),
     profileId: buf.readUInt32LE(0x0004),
     dpoint: buf.readUInt32LE(0x0008),
-    forceQuitEn: ((pack >> 0) & 1) !== 0,
-    steeringForce: (pack >> 1) & 15,
-    bgVolume: (pack >> 5) & 15,
-    seVolume: (pack >> 9) & 15,
-    cornerGuide: ((pack >> 13) & 1) !== 0,
-    lineGuide: ((pack >> 14) & 1) !== 0,
-    ghostEn: ((pack >> 15) & 1) !== 0,
-    taResultSkip: ((pack >> 16) & 1) !== 0,
+    settings: {
+      bgMusic: buf.readUInt16LE(0x0002),
+      forceQuitEn: ((pack >> 0) & 1) !== 0,
+      steeringForce: (pack >> 1) & 15,
+      bgVolume: (pack >> 5) & 15,
+      seVolume: (pack >> 9) & 15,
+      cornerGuide: ((pack >> 13) & 1) !== 0,
+      lineGuide: ((pack >> 14) & 1) !== 0,
+      ghostEn: ((pack >> 15) & 1) !== 0,
+      taResultSkip: ((pack >> 16) & 1) !== 0,
+    },
     field_0010: buf.readUInt8(0x0010),
     field_0011: buf.readUInt8(0x0011),
     field_0012: buf.readUInt8(0x0012), // always 5 for some reason
diff --git a/src/idz/encoder/loadProfile2.ts b/src/idz/encoder/loadProfile2.ts
index 52e8370..8f36c13 100644
--- a/src/idz/encoder/loadProfile2.ts
+++ b/src/idz/encoder/loadProfile2.ts
@@ -5,15 +5,24 @@ import { LoadProfileResponse2 } from "../response/loadProfile2";
 export function loadProfile2(res: LoadProfileResponse2) {
   const buf = Buffer.alloc(0x0d30);
 
-  buf.writeUInt16LE(12, 0x03c8); // BGM
-  buf.writeUInt32LE(0x3548, 0x03d8); // Settings pack (default: max vol, force 4, corner on)
-
   buf.writeInt16LE(0x0065, 0x0000);
-  buf.writeInt32LE(res.profileId, 4 + 0x3b4);
-  buf.writeInt16LE(res.lv, 4 + 0x03c8);
-  buf.writeInt32LE(res.dpoint, 4 + 0x03e4);
-  buf.writeInt32LE(res.fame, 4 + 0x0400);
-  iconv.encode(res.name + "\0", "shift_jis").copy(buf, 4 + 0x03ea);
+  buf.writeInt32LE(res.profileId, 0x3b8);
+  buf.writeUInt16LE(res.settings.bgMusic, 0x3c8);
+  buf.writeInt16LE(res.lv, 0x03cc);
+  buf.writeUInt32LE(
+    ((res.settings.forceQuitEn ? 1 : 0) << 0) |
+      (res.settings.steeringForce << 1) |
+      (res.settings.bgVolume << 5) |
+      (res.settings.seVolume << 9) |
+      ((res.settings.cornerGuide ? 1 : 0) << 13) |
+      ((res.settings.lineGuide ? 1 : 0) << 14) |
+      ((res.settings.ghostEn ? 1 : 0) << 15) |
+      ((res.settings.taResultSkip ? 1 : 0) << 16),
+    0x3d8
+  );
+  buf.writeInt32LE(res.dpoint, 0x03e8);
+  buf.writeInt32LE(res.fame, 0x0404);
+  iconv.encode(res.name + "\0", "shift_jis").copy(buf, 0x03ee);
   buf.writeInt32LE(res.teamId, 0x07e0);
 
   return buf;
diff --git a/src/idz/handler/loadProfile.ts b/src/idz/handler/loadProfile.ts
index a156c22..6213478 100644
--- a/src/idz/handler/loadProfile.ts
+++ b/src/idz/handler/loadProfile.ts
@@ -10,9 +10,20 @@ export function loadProfile(
     type: "load_profile_v2_res",
     name: "てすと",
     profileId: 0x11223344,
-    lv: 69,
+    lv: 99,
     fame: 1234,
     dpoint: 54321,
     teamId: 0x22334455,
+    settings: {
+      bgMusic: 15,
+      forceQuitEn: false,
+      steeringForce: 4,
+      bgVolume: 10,
+      seVolume: 10,
+      cornerGuide: true,
+      lineGuide: false,
+      ghostEn: false,
+      taResultSkip: false,
+    },
   };
 }
diff --git a/src/idz/model/settings.ts b/src/idz/model/settings.ts
new file mode 100644
index 0000000..8654255
--- /dev/null
+++ b/src/idz/model/settings.ts
@@ -0,0 +1,11 @@
+export interface Settings {
+  bgMusic: number;
+  forceQuitEn: boolean;
+  steeringForce: number;
+  bgVolume: number;
+  seVolume: number;
+  cornerGuide: boolean;
+  lineGuide: boolean;
+  ghostEn: boolean;
+  taResultSkip: boolean; // TA = Time Attack presumably
+}
diff --git a/src/idz/request/saveSettings.ts b/src/idz/request/saveSettings.ts
index be256b1..1006d87 100644
--- a/src/idz/request/saveSettings.ts
+++ b/src/idz/request/saveSettings.ts
@@ -1,16 +1,10 @@
+import { Settings } from "../model/settings";
+
 export interface SaveSettingsRequest {
   type: "save_settings_req";
-  bgMusic: number;
   profileId: number;
   dpoint: number; // ?? why
-  forceQuitEn: boolean;
-  steeringForce: number;
-  bgVolume: number;
-  seVolume: number;
-  cornerGuide: boolean;
-  lineGuide: boolean;
-  ghostEn: boolean;
-  taResultSkip: boolean; // TA = Time Attack presumably
+  settings: Settings;
   field_0010: number;
   field_0011: number;
   field_0012: number;
diff --git a/src/idz/response/loadProfile2.ts b/src/idz/response/loadProfile2.ts
index 50944e5..f3800cc 100644
--- a/src/idz/response/loadProfile2.ts
+++ b/src/idz/response/loadProfile2.ts
@@ -1,3 +1,5 @@
+import { Settings } from "../model/settings";
+
 export interface LoadProfileResponse2 {
   type: "load_profile_v2_res";
   name: string;
@@ -6,5 +8,6 @@ export interface LoadProfileResponse2 {
   fame: number;
   dpoint: number;
   teamId: number;
+  settings: Settings;
   // giga TODO
 }