From b7bbfd4efdb7c0b76c375e820aed61e656c28f0e Mon Sep 17 00:00:00 2001
From: nashmuhandes <nashbackslash@gmail.com>
Date: Tue, 9 Mar 2021 14:08:31 +0800
Subject: [PATCH] Add SetSubtitleNumber(int num, str sound) ACS function. Works
 exactly like its ZScript counterpart. The activator of the script must be a
 player.

---
 src/playsim/p_acs.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/playsim/p_acs.cpp b/src/playsim/p_acs.cpp
index e2bdf3b85..127707906 100644
--- a/src/playsim/p_acs.cpp
+++ b/src/playsim/p_acs.cpp
@@ -4779,6 +4779,7 @@ enum EACSFunctions
 	ACSF_StartSlideshow,
 	ACSF_GetSectorHealth,
 	ACSF_GetLineHealth,
+	ACSF_SetSubtitleNumber,
 
 		// Eternity's
 	ACSF_GetLineX = 300,
@@ -6697,6 +6698,27 @@ doplaysound:			if (funcIndex == ACSF_PlayActorSound)
 			}
 			return DoubleToACS(result);
 		}
+
+		case ACSF_SetSubtitleNumber:
+			if (argCount >= 2)
+			{
+				// only players allowed as activator
+				if (activator != nullptr && activator->player != nullptr)
+				{
+					int logNum = args[0];
+					FSoundID sid = 0;
+
+					const char* lookup = Level->Behaviors.LookupString(args[1]);
+					if (lookup != nullptr)
+					{
+						sid = lookup;
+					}
+
+					activator->player->SetSubtitle(logNum, sid);
+				}
+			}
+			break;
+
 		default:
 			break;
 	}