From a68979a57b2da55289443d693cd382e3137d1f3a Mon Sep 17 00:00:00 2001
From: Eric Wasylishen <ewasylishen@gmail.com>
Date: Wed, 27 Jul 2016 02:00:11 -0600
Subject: [PATCH] light: add -nolights option

---
 include/light/light.hh | 1 +
 light/entities.cc      | 5 +++++
 light/light.cc         | 4 ++++
 3 files changed, 10 insertions(+)

diff --git a/include/light/light.hh b/include/light/light.hh
index 74c96380..37ca1b74 100644
--- a/include/light/light.hh
+++ b/include/light/light.hh
@@ -668,6 +668,7 @@ extern qboolean onlyents;
 extern qboolean scaledonly;
 extern uint32_t *extended_texinfo_flags;
 extern qboolean novis;
+extern bool nolights;
 
 typedef enum {
     backend_bsp,
diff --git a/light/entities.cc b/light/entities.cc
index 3d19a9f3..3f266038 100644
--- a/light/entities.cc
+++ b/light/entities.cc
@@ -885,6 +885,11 @@ LoadEntities(const bsp2_t *bsp)
         SetGlobalSetting(epair.first, epair.second, false);
     }
     
+    assert(all_lights.size() == 0);
+    if (nolights) {
+        return;
+    }
+    
     /* go through all the entities */
     for (const auto &entdict : entdicts) {
         
diff --git a/light/light.cc b/light/light.cc
index c4d2e54a..9952f14a 100644
--- a/light/light.cc
+++ b/light/light.cc
@@ -127,6 +127,7 @@ int write_litfile = 0;  /* 0 for none, 1 for .lit, 2 for bspx, 3 for both */
 int write_luxfile = 0;  /* 0 for none, 1 for .lux, 2 for bspx, 3 for both */
 qboolean onlyents = false;
 qboolean novis = false; /* if true, don't use vis data */
+bool nolights = false;
 backend_t rtbackend = backend_embree;
 debugmode_t debugmode = debugmode_none;
 
@@ -1614,6 +1615,9 @@ main(int argc, const char **argv)
         } else if ( !strcmp( argv[ i ], "-novis" ) ) {
             novis = true;
             logprint( "Skipping use of vis data to optimize lighting\n" );
+        } else if ( !strcmp( argv[ i ], "-nolights" ) ) {
+            nolights = true;
+            logprint( "Skipping all light entities (sunlight / minlight only)\n" );
         } else if ( !strcmp( argv[ i ], "-backend" ) ) {
             const char *requested = ParseString(&i, argc, argv);
             if (!strcmp(requested, "bsp")) {