From d03c56e844e2cdda8ba898680225b6a17642efba Mon Sep 17 00:00:00 2001
From: galaxyhaxz <andrew-haxz@hotmail.com>
Date: Sat, 23 Jun 2018 12:19:49 -0500
Subject: [PATCH] Add debug lighting, add cmd line note (#61)

---
 Makefile            |  2 +-
 Source/diablo.cpp   |  5 +++++
 Source/lighting.cpp | 25 +++++++++++++++++++++++++
 Source/lighting.h   |  3 +++
 Support/debug.md    |  2 +-
 types.h             |  5 ++++-
 6 files changed, 39 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 77aed4ea3..d2867df56 100644
--- a/Makefile
+++ b/Makefile
@@ -50,6 +50,6 @@ storm.dll:
 #	$(error Please copy storm.dll (version 1.09[b]) here)
 
 clean:
-	@$(RM) -v $(OBJS) $(OBJS:.o=.d) $(PKWARE_OBJS) $(PKWARE_OBJS:.o=d) diabres.o storm.lib diabloui.lib
+	@$(RM) -v $(OBJS) $(OBJS:.o=.d) $(PKWARE_OBJS) $(PKWARE_OBJS:.o=d) diabres.o storm.lib diabloui.lib devilution.exe
 
 .PHONY: clean all
diff --git a/Source/diablo.cpp b/Source/diablo.cpp
index 9a61fd6ce..56a62b2c2 100644
--- a/Source/diablo.cpp
+++ b/Source/diablo.cpp
@@ -1742,6 +1742,11 @@ LABEL_27:
 						NetSendCmdString(1 << myplr, tempstr);
 					}
 					return;
+				case 'L':
+				case 'l':
+					if ( debug_mode_key_inverted_v )
+						ToggleLighting();
+					return;
 				case 'M':
 					NextDebugMonster();
 					return;
diff --git a/Source/lighting.cpp b/Source/lighting.cpp
index 30a6940a6..6c29abddf 100644
--- a/Source/lighting.cpp
+++ b/Source/lighting.cpp
@@ -1391,6 +1391,31 @@ void __cdecl MakeLightTable()
 // 525728: using guessed type int light4flag;
 // 5BB1ED: using guessed type char leveltype;
 
+#ifdef _DEBUG
+void __cdecl ToggleLighting()
+{
+	int i;
+
+	lightflag ^= 1;
+	if ( lightflag )
+	{
+		memset(dTransVal, 0, 0x3100u);
+	}
+	else
+	{
+		memcpy(dTransVal, dTransVal2, 0x3100u);
+		for(i = 0; i < 4; i++)
+		{
+			if ( plr[i].plractive )
+			{
+				if ( currlevel == plr[i].plrlevel )
+					DoLighting(plr[i].WorldX, plr[i].WorldY, plr[i]._pLightRad, -1);
+			}
+		}
+	}
+}
+#endif
+
 void __cdecl InitLightMax()
 {
 	lightmax = light4flag == 0 ? 15 : 3;
diff --git a/Source/lighting.h b/Source/lighting.h
index 3bb9bae81..38a497c69 100644
--- a/Source/lighting.h
+++ b/Source/lighting.h
@@ -24,6 +24,9 @@ void __fastcall DoVision(int nXPos, int nYPos, int nRadius, unsigned char doauto
 void __cdecl FreeLightTable();
 void __cdecl InitLightTable();
 void __cdecl MakeLightTable();
+#ifdef _DEBUG
+void __cdecl ToggleLighting();
+#endif
 void __cdecl InitLightMax();
 void __cdecl InitLighting();
 int __fastcall AddLight(int x, int y, int r);
diff --git a/Support/debug.md b/Support/debug.md
index b31b614d6..eb11f0f88 100644
--- a/Support/debug.md
+++ b/Support/debug.md
@@ -39,7 +39,7 @@ In-game hotkeys
 - `d` -> print debug player info
 - `D` -> switch current debug player
 - `e` -> display "EFlag"
-- `l`/`L` -> toggle lighting in dungeon [NOT YET IMPLEMENTED]
+- `l`/`L` -> toggle lighting in dungeon
 - `m` -> print debug monster info
 - `M` -> switch current debug monster
 - `r`/`R` -> display game seeds
diff --git a/types.h b/types.h
index f52f9a4dd..f5a71aace 100644
--- a/types.h
+++ b/types.h
@@ -45,7 +45,10 @@
 // If defined, use copy protection [Default -> Defined]
 //#define COPYPROT
 // If defined, don't reload for debuggers [Default -> Undefined]
-//#define DEBUGGER
+// Note that with patch 1.03 the command line was hosed, this is required to pass arguments to the game
+#ifdef _DEBUG
+#define DEBUGGER
+#endif
 // If defined, don't fry the CPU [Default -> Undefined]
 #define SLEEP