From c146ab5366993a63e792641de9eeb9b3cc6e5ab0 Mon Sep 17 00:00:00 2001
From: falsycat <me@falsy.cat>
Date: Wed, 16 Oct 2019 00:00:00 +0000
Subject: [PATCH] [update] Added a debug-music-index command-line option.

---
 src/main.d    |  3 ++-
 src/sj/Args.d |  3 +++
 src/sj/Game.d | 12 ++++++++++--
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/main.d b/src/main.d
index 25541f9..842b2dc 100644
--- a/src/main.d
+++ b/src/main.d
@@ -36,7 +36,8 @@ int main(string[] unparsed_args) {
 
 private bool ParseArgs(string[] unparsed_args, out Args args) {
   auto helpinfo = unparsed_args.getopt(
-      "window-size", &args.window_size
+      "debug-music-index", &args.debug_music_index,
+      "window-size",       &args.window_size
     );
 
   auto valid = true;
diff --git a/src/sj/Args.d b/src/sj/Args.d
index c838f8a..e3de3fe 100644
--- a/src/sj/Args.d
+++ b/src/sj/Args.d
@@ -6,4 +6,7 @@ struct Args {
  public:
   ///
   int window_size = 600;
+
+  ///
+  int debug_music_index = -1;
 }
diff --git a/src/sj/Game.d b/src/sj/Game.d
index e85efdd..4dc77f9 100644
--- a/src/sj/Game.d
+++ b/src/sj/Game.d
@@ -2,6 +2,7 @@
 module sj.Game;
 
 import std.algorithm,
+       std.exception,
        std.file,
        std.json,
        std.path;
@@ -48,8 +49,15 @@ class Game : AbstractGame {
     play_  .SetupSceneDependency(result_);
     result_.SetupSceneDependency(title_);
 
-    title_.Initialize();
-    super(title_);
+    if (args.debug_music_index >= 0) {
+      enforce(args.debug_music_index < music_list.length);
+      load_.Initialize(music_list_[args.debug_music_index]);
+      super(load_);
+
+    } else {
+      title_.Initialize();
+      super(title_);
+    }
   }
 
   ~this() {