From 2221594883afa7cd0e518fca7ea975d05626692a Mon Sep 17 00:00:00 2001
From: Eric <ericmyllyoja@gmail.com>
Date: Fri, 30 May 2025 22:48:22 -0400
Subject: [PATCH] [PUBLIC PR] Press Chart Editor key in Freeplay to open that
 song (#1061)

Co-authored-by: Lasercar <B_l_u_t_a_c_k@hotmail.com.au>
---
 source/funkin/ui/freeplay/FreeplayState.hx | 44 +++++++++++++++++++++-
 1 file changed, 42 insertions(+), 2 deletions(-)

diff --git a/source/funkin/ui/freeplay/FreeplayState.hx b/source/funkin/ui/freeplay/FreeplayState.hx
index ae9b7e3d6..35a170394 100644
--- a/source/funkin/ui/freeplay/FreeplayState.hx
+++ b/source/funkin/ui/freeplay/FreeplayState.hx
@@ -45,7 +45,8 @@ import funkin.util.HapticUtil;
 import funkin.util.MathUtil;
 import funkin.util.SortUtil;
 import openfl.display.BlendMode;
-import openfl.filters.ShaderFilter;
+import funkin.data.freeplay.style.FreeplayStyleRegistry;
+import funkin.ui.debug.charting.ChartEditorState;
 #if FEATURE_DISCORD_RPC
 import funkin.api.discord.DiscordClient;
 #end
@@ -1844,6 +1845,45 @@ class FreeplayState extends MusicBeatSubState
       freeplayTxtBg.x = FullScreenScaleMode.gameNotchSize.x;
       _pressedOnFreeplay = false;
     }
+    if (controls.DEBUG_CHART && !busy)
+    {
+      busy = true;
+      var targetSongID = grpCapsules.members[curSelected]?.freeplayData?.data.id ?? 'unknown';
+      if (targetSongID == 'unknown')
+      {
+        trace('CHART RANDOM SONG');
+        letterSort.inputEnabled = false;
+
+        var availableSongCapsules:Array<SongMenuItem> = grpCapsules.members.filter(function(cap:SongMenuItem) {
+          // Dead capsules are ones which were removed from the list when changing filters.
+          return cap.alive && cap.freeplayData != null;
+        });
+
+        trace('Available songs: ${availableSongCapsules.map(function(cap) {
+      return cap?.freeplayData?.data.songName;
+    })}');
+
+        if (availableSongCapsules.length == 0)
+        {
+          trace('No songs available!');
+          busy = false;
+          letterSort.inputEnabled = true;
+          FunkinSound.playOnce(Paths.sound('cancelMenu'));
+          return;
+        }
+
+        var targetSong:SongMenuItem = FlxG.random.getObject(availableSongCapsules);
+
+        // Seeing if I can do an animation...
+        curSelected = grpCapsules.members.indexOf(targetSong);
+        changeSelection(0);
+        targetSongID = grpCapsules.members[curSelected]?.freeplayData?.data.id ?? 'unknown';
+      }
+      FlxG.switchState(() -> new ChartEditorState(
+        {
+          targetSongId: targetSongID,
+        }));
+    }
   }
   #end
 
@@ -2498,7 +2538,7 @@ class FreeplayState extends MusicBeatSubState
       #end
     }
 
-    if (grpCapsules.countLiving() > 0 && !prepForNewRank)
+    if (grpCapsules.countLiving() > 0 && !prepForNewRank && !busy)
     {
       playCurSongPreview(daSongCapsule);
       grpCapsules.members[curSelected].selected = true;