From 479e0c301ebddf7c83e3bb30936f11c0c115ac81 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ricardo=20Lu=C3=ADs=20Vaz=20Silva?= <ricolvs123@gmail.com>
Date: Tue, 8 Oct 2024 20:48:42 -0300
Subject: [PATCH] add
 light_noshadowmap/light_dontlightactors/light_dontlightmap to UDMF

---
 specs/udmf_zdoom.txt   |  3 +++
 src/doomdata.h         |  3 +++
 src/maploader/udmf.cpp | 12 ++++++++++++
 src/namedef_custom.h   |  3 +++
 src/playsim/p_mobj.cpp | 15 +++++++++++++++
 5 files changed, 36 insertions(+)

diff --git a/specs/udmf_zdoom.txt b/specs/udmf_zdoom.txt
index acf3a36da..b703de5df 100644
--- a/specs/udmf_zdoom.txt
+++ b/specs/udmf_zdoom.txt
@@ -432,6 +432,9 @@ Note: All <bool> fields default to false unless mentioned otherwise.
       
       light_strength = <float>;   // Light strenght for Inverse-square falloff lights. Default = 0.0 (auto)
       
+      light_noshadowmap = <bool>; // Disable shadows for light
+      light_dontlightactors = <bool>; // Don't light actors
+      light_dontlightmap = <bool>; // Don't light map geometry
 
       friendlyseeblocks = <int>;    // How far (in block units) a friendly monster can see other monsters. Default 10
 
diff --git a/src/doomdata.h b/src/doomdata.h
index 8ef88effa..a9f118a73 100644
--- a/src/doomdata.h
+++ b/src/doomdata.h
@@ -385,6 +385,9 @@ struct FMapThing
 	FName arg0str;
 	double		SoftShadowRadius;
 	double		LightStrength;
+	bool		LightNoShadowMap;
+	bool		LightDontLightActors;
+	bool		LightDontLightMap;
 };
 
 
diff --git a/src/maploader/udmf.cpp b/src/maploader/udmf.cpp
index 84ac00981..15f6227ca 100644
--- a/src/maploader/udmf.cpp
+++ b/src/maploader/udmf.cpp
@@ -800,6 +800,18 @@ public:
 				th->LightStrength = CheckFloat(key);
 				break;
 
+			case NAME_light_noshadowmap:
+				th->LightNoShadowMap = CheckBool(key);
+				break;
+
+			case NAME_light_dontlightactors:
+				th->LightDontLightActors = CheckBool(key);
+				break;
+
+			case NAME_light_dontlightmap:
+				th->LightDontLightMap = CheckBool(key);
+				break;
+
 			case NAME_lm_suncolor:
 				CHECK_N(Zd | Zdt)
 				if (CheckInt(key) < 0 || CheckInt(key) > 0xFFFFFF)
diff --git a/src/namedef_custom.h b/src/namedef_custom.h
index 363c62add..a9af0a077 100644
--- a/src/namedef_custom.h
+++ b/src/namedef_custom.h
@@ -872,6 +872,9 @@ xx(lm_suncolor)
 // Light keywords
 xx(light_softshadowradius)
 xx(light_strength)
+xx(light_noshadowmap)
+xx(light_dontlightactors)
+xx(light_dontlightmap)
 
 xx(skew_bottom_type)
 xx(skew_middle_type)
diff --git a/src/playsim/p_mobj.cpp b/src/playsim/p_mobj.cpp
index eca50a742..a6bee6c84 100644
--- a/src/playsim/p_mobj.cpp
+++ b/src/playsim/p_mobj.cpp
@@ -6218,6 +6218,21 @@ AActor *FLevelLocals::SpawnMapThing (FMapThing *mthing, int position)
 		{
 			mobj->FloatVar(NAME_LightStrength) = mthing->LightStrength;
 		}
+
+		if (mthing->LightNoShadowMap)
+		{
+			mobj->IntVar(NAME_lightflags) |= LF_NOSHADOWMAP;
+		}
+
+		if (mthing->LightDontLightActors)
+		{
+			mobj->IntVar(NAME_lightflags) |= LF_DONTLIGHTACTORS;
+		}
+
+		if (mthing->LightDontLightMap)
+		{
+			mobj->IntVar(NAME_lightflags) |= LF_DONTLIGHTMAP;
+		}
 	}
 
 	mobj->CallBeginPlay ();