From 8034215b3aef89244c211dce297fc4da630e5250 Mon Sep 17 00:00:00 2001
From: Eric Wasylishen <ewasylishen@gmail.com>
Date: Sat, 10 Jun 2023 16:36:17 -0600
Subject: [PATCH] tests: add "minlight doesn't bounce" test

---
 testmaps/q1_minlight_nobounce.map | 69 +++++++++++++++++++++++++++++++
 tests/test_ltface.cc              |  8 +++-
 2 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100644 testmaps/q1_minlight_nobounce.map

diff --git a/testmaps/q1_minlight_nobounce.map b/testmaps/q1_minlight_nobounce.map
new file mode 100644
index 00000000..3bf51c33
--- /dev/null
+++ b/testmaps/q1_minlight_nobounce.map
@@ -0,0 +1,69 @@
+// Game: Quake
+// Format: Valve
+// entity 0
+{
+"classname" "worldspawn"
+"wad" "deprecated/free_wad.wad"
+"_tb_def" "builtin:Quake.fgd"
+"_bounce" "1"
+"_minlight" "100"
+// brush 0
+{
+( -256 -128 -16 ) ( -256 -127 -16 ) ( -256 -128 -15 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( -256 -208 -16 ) ( -256 -208 -15 ) ( -255 -208 -16 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( -256 -128 -16 ) ( -255 -128 -16 ) ( -256 -127 -16 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 0 ) ( 288 273 0 ) ( 289 272 0 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 0 ) ( 289 272 0 ) ( 288 272 1 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 272 0 ) ( 288 272 1 ) ( 288 273 0 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+// brush 1
+{
+( -256 -128 240 ) ( -256 -127 240 ) ( -256 -128 241 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( -256 -208 240 ) ( -256 -208 241 ) ( -255 -208 240 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( -256 -128 240 ) ( -255 -128 240 ) ( -256 -127 240 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 256 ) ( 288 273 256 ) ( 289 272 256 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 256 ) ( 289 272 256 ) ( 288 272 257 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 272 256 ) ( 288 272 257 ) ( 288 273 256 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+// brush 2
+{
+( -272 -128 224 ) ( -272 -127 224 ) ( -272 -128 225 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( -272 -208 224 ) ( -272 -208 225 ) ( -271 -208 224 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( -272 -128 0 ) ( -271 -128 0 ) ( -272 -127 0 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 272 272 240 ) ( 272 273 240 ) ( 273 272 240 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 272 272 240 ) ( 273 272 240 ) ( 272 272 241 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( -256 272 240 ) ( -256 272 241 ) ( -256 273 240 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+// brush 3
+{
+( 288 -128 224 ) ( 288 -127 224 ) ( 288 -128 225 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 -208 224 ) ( 288 -208 225 ) ( 289 -208 224 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 -128 0 ) ( 289 -128 0 ) ( 288 -127 0 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 832 272 240 ) ( 832 273 240 ) ( 833 272 240 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 832 272 240 ) ( 833 272 240 ) ( 832 272 241 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 304 272 240 ) ( 304 272 241 ) ( 304 273 240 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+// brush 4
+{
+( -256 -144 224 ) ( -256 -143 224 ) ( -256 -144 225 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( 256 -224 224 ) ( 256 -224 225 ) ( 257 -224 224 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 256 -144 0 ) ( 257 -144 0 ) ( 256 -143 0 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 800 256 240 ) ( 800 257 240 ) ( 801 256 240 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 800 -208 240 ) ( 801 -208 240 ) ( 800 -208 241 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 256 240 ) ( 288 256 241 ) ( 288 257 240 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+// brush 5
+{
+( -256 256 0 ) ( -256 257 0 ) ( -256 256 1 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+( -272 256 0 ) ( -272 256 1 ) ( -271 256 0 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( -272 256 0 ) ( -271 256 0 ) ( -272 257 0 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 240 ) ( 288 273 240 ) ( 289 272 240 ) bolt3 [ 1 0 0 -32 ] [ 0 -1 0 -32 ] 0 1 1
+( 288 272 16 ) ( 289 272 16 ) ( 288 272 17 ) bolt3 [ 1 0 0 -32 ] [ 0 0 -1 16 ] 0 1 1
+( 288 272 16 ) ( 288 272 17 ) ( 288 273 16 ) bolt3 [ 0 1 0 32 ] [ 0 0 -1 16 ] 0 1 1
+}
+}
+// entity 1
+{
+"classname" "info_player_start"
+"origin" "-132 0 108"
+}
diff --git a/tests/test_ltface.cc b/tests/test_ltface.cc
index f05ef516..b9a58e30 100644
--- a/tests/test_ltface.cc
+++ b/tests/test_ltface.cc
@@ -787,4 +787,10 @@ TEST_CASE("q2_light_divzero")
     INFO("should not have a black spot in the center of the light face");
     CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {255, 127, 63}, {-992, 0, -480}, {0, 0, -1}, nullptr, &bspx);
     CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {255, 127, 63}, {-984, 8, -480}, {0, 0, -1}, nullptr, &bspx);
-}
\ No newline at end of file
+}
+
+TEST_CASE("minlight doesn't bounce")
+{
+    auto [bsp, bspx, lit] = QbspVisLight_Q1("q1_minlight_nobounce.map", {"-lit"});
+    CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {50, 50, 50}, {0, 0, 0}, {0, 0, 1}, &lit);
+}