From fba5c7884d59eafd96bd416dd3814a1756237b5d Mon Sep 17 00:00:00 2001
From: Rachael Alexanderson <madame-rachelle@users.noreply.github.com>
Date: Wed, 3 Nov 2021 18:41:33 -0400
Subject: [PATCH] - add `LoadBrightmaps`, `LoadLights`, and `LoadWidescreen`
 directives for `IWADINFO` - these function exactly the same as their
 `GAMEINFO` equivalents.

---
 src/d_iwad.cpp | 24 ++++++++++++++++++++++++
 src/d_main.h   |  3 +++
 2 files changed, 27 insertions(+)

diff --git a/src/d_iwad.cpp b/src/d_iwad.cpp
index 567c7df454..b1b0e88de0 100644
--- a/src/d_iwad.cpp
+++ b/src/d_iwad.cpp
@@ -221,6 +221,24 @@ void FIWadManager::ParseIWadInfo(const char *fn, const char *data, int datasize,
 					sc.MustGetString();
 					iwad->Song = sc.String;
 				}
+				else if (sc.Compare("LoadLights"))
+				{
+					sc.MustGetStringName("=");
+					sc.MustGetNumber();
+					iwad->LoadLights = sc.Number;
+				}
+				else if (sc.Compare("LoadBrightmaps"))
+				{
+					sc.MustGetStringName("=");
+					sc.MustGetNumber();
+					iwad->LoadBrightmaps = sc.Number;
+				}
+				else if (sc.Compare("LoadWidescreen"))
+				{
+					sc.MustGetStringName("=");
+					sc.MustGetNumber();
+					iwad->LoadWidescreen = sc.Number;
+				}
 				else
 				{
 					sc.ScriptError("Unknown keyword '%s'", sc.String);
@@ -805,6 +823,12 @@ const FIWADInfo *FIWadManager::FindIWAD(TArray<FString> &wadfiles, const char *i
 		GameStartupInfo.BkColor = iwad_info->BkColor;
 		GameStartupInfo.FgColor = iwad_info->FgColor;
 	}
+	if (GameStartupInfo.LoadWidescreen == -1)
+		GameStartupInfo.LoadWidescreen = iwad_info->LoadWidescreen;
+	if (GameStartupInfo.LoadLights == -1)
+		GameStartupInfo.LoadLights = iwad_info->LoadLights;
+	if (GameStartupInfo.LoadBrightmaps == -1)
+		GameStartupInfo.LoadBrightmaps = iwad_info->LoadBrightmaps;
 	if (GameStartupInfo.Type == 0) GameStartupInfo.Type = iwad_info->StartupType;
 	if (GameStartupInfo.Song.IsEmpty()) GameStartupInfo.Song = iwad_info->Song;
 	I_SetIWADInfo();
diff --git a/src/d_main.h b/src/d_main.h
index e2159af641..ba614b2bb9 100644
--- a/src/d_main.h
+++ b/src/d_main.h
@@ -90,6 +90,9 @@ struct FIWADInfo
 	TArray<FString> Lumps;	// Lump names for identification
 	TArray<FString> DeleteLumps;	// Lumps which must be deleted from the directory.
 	int flags = 0;
+	int LoadWidescreen = -1;
+	int LoadBrightmaps = -1;
+	int LoadLights = -1;
 };
 
 struct FFoundWadInfo