Response System

gamedata/srccoop.games.txt

@@ -737,6 +737,23 @@
 					}
 				}
 			}
+			"CAI_ExpresserHost_NPC_DoModifyOrAppendCriteria"
+			{
+				"signature"	"CAI_ExpresserHost_NPC_DoModifyOrAppendCriteria"
+				"callconv"	"cdecl"
+				"return"	"void"
+				"arguments"
+				{
+					"pSpeaker"
+					{
+						"type"	"cbaseentity"
+					}
+					"pCriteriaSet"
+					{
+						"type"	"int"
+					}
+				}
+			}
 		}
 	}
 
@@ -879,6 +896,16 @@
 				"windows"	"\x55\x8B\xEC\x83\xEC\x5C\x56\x57\x8B\xF9\x2A\x2A\x2A\x2A\x2A\x8B\xF0\x85\xF6\x2A\x2A\x2A\x2A\x2A\x2A"
 				"linux"		"@_ZN11CWeapon_Tau8FireBeamERKfb"
 			}
+			"CAI_ExpresserHost_NPC_DoModifyOrAppendCriteria"
+			{
+				"windows"	"\x55\x8B\xEC\x83\xEC\x0C\x53\x56\x8B\x75\x08\x57\xFF\xB6\xA0\x09\x00\x00\x2A\x2A\x2A\x2A\x2A\x8B\x7D\x0C\x83\xC4"
+				"linux"		"@_Z46CAI_ExpresserHost_NPC_DoModifyOrAppendCriteriaP11CAI_BaseNPCR14AI_CriteriaSet"
+			}
+			"AI_CriteriaSet::AppendCriteria"
+			{
+				"windows"	"\x55\x8B\xEC\x83\xEC\x50\xA1\x2A\x2A\x2A\x2A\x33\xC5\x89\x45\x2A\x53\x8B\x5D\x2A\xB8\xFF\xFF\x00\x00"
+				"linux"		"@_ZN14AI_CriteriaSet14AppendCriteriaEPKcS1_f"
+			}
 		}
 
 		//  ____  __  __  _____    __  __ ______ __  __ _____     _______ _____ _    _ ______  _____ 
@@ -1309,6 +1336,16 @@
 				"windows" "\x55\x8B\xEC\x83\xEC\x1C\x56\x8B\xF1\x80\xBE\x88\x03\x00\x00\x01"
 				"linux" "@_ZN20CAI_ScriptConditions15EvaluationThinkEv"
 			}
+			"CAI_ExpresserHost_NPC_DoModifyOrAppendCriteria"
+			{
+				"windows"	"\x55\x8B\xEC\x83\xEC\x0C\x53\x56\x8B\x75\x08\x57\xFF\xB6\xA0\x09\x00\x00\x2A\x2A\x2A\x2A\x2A\x8B\x7D\x0C\x83\xC4"
+				"linux"		"@_Z46CAI_ExpresserHost_NPC_DoModifyOrAppendCriteriaP11CAI_BaseNPCR14AI_CriteriaSet"
+			}
+			"AI_CriteriaSet::AppendCriteria"
+			{
+				"windows"	"\x55\x8B\xEC\x83\xEC\x48\x53\x56\x8B\x75\x08\xBB\xFF\xFF\x00\x00\x57\x8B\xF9\x66\x89\x5D"
+				"linux"		"@_ZN14AI_CriteriaSet14AppendCriteriaEPKcS1_f"
+			}
 		}
 
 		//   _    _ _      ___  __  __ _____     __  __ ______ __  __ _____     _______ _____ _    _ ______  _____ 

scripting/include/srccoop.inc

@@ -38,7 +38,7 @@
 	#define ENTPATCH_PLAYER_LOADSAVED
 	#define ENTPATCH_LOGIC_AUTOSAVE_SURVIVAL_RESPAWN
 	#define ENTPATCH_GAME_END
-	#define ENTPATCH_FIND_NAMED_ENTITY
+	#define ENTPATCH_NPC_DIALOGUE
 	#define ENTPATCH_GOALENTITY_RESOLVENAMES
 	#define ENTPATCH_GOAL_LEAD
 	#define ENTPATCH_SETPLAYERAVOIDSTATE
@@ -82,7 +82,7 @@
 	#define ENTPATCH_PLAYER_LOADSAVED
 	#define ENTPATCH_LOGIC_AUTOSAVE_SURVIVAL_RESPAWN
 	#define ENTPATCH_GAME_END
-	#define ENTPATCH_FIND_NAMED_ENTITY
+	#define ENTPATCH_NPC_DIALOGUE
 	#define ENTPATCH_REMOVE_BONE_FOLLOWERS
 	#define ENTPATCH_WEAPON_MODELS
 	#define ENTPATCH_PLAYER_ALLY

scripting/include/srccoop/classdef.inc

@@ -39,6 +39,7 @@ Handle g_pGetPlayerState;
 Handle g_pSelectWeightedSequence;
 Handle g_pSendViewModelMatchingSequence;
 Handle g_pGetGlobalVars;
+Handle g_pAppendCriteria;
 
 int g_iCSoundSize = -1;
 int g_iCPlayerState_frags = -1;
@@ -342,6 +343,18 @@ stock void InitClassdef(GameData pGameConfig)
 		PrepSDKCall_SetReturnInfo(SDKType_PlainOldData, SDKPass_Plain);
 		if (!(g_pGetGlobalVars = EndPrepSDKCall())) SetFailState("Could not prep SDK call %s", szGetGlobalVars);
 	}
+
+	char szAppendCriteria[] = "AI_CriteriaSet::AppendCriteria";
+	StartPrepSDKCall(SDKCall_Raw);
+	if (!PrepSDKCall_SetFromConf(pGameConfig, SDKConf_Signature, szAppendCriteria))
+		LogMessage("Could not obtain gamedata offset %s", szAppendCriteria);
+	else
+	{
+		PrepSDKCall_AddParameter(SDKType_String, SDKPass_Pointer);
+		PrepSDKCall_AddParameter(SDKType_String, SDKPass_Pointer);
+		PrepSDKCall_AddParameter(SDKType_Float, SDKPass_Plain);
+		if (!(g_pAppendCriteria = EndPrepSDKCall())) SetFailState("Could not prep SDK call %s", szAppendCriteria);
+	}
 
 	#if defined SRCCOOP_BLACKMESA
 	InitClassdefBM(pGameConfig);
@@ -1193,6 +1206,23 @@ methodmap CSceneEntity < CPointEntity
 		// Could also be a "scripted_scene`.
 		return CSceneEntity(CreateEntityByName("logic_choreographed_scene"));
 	}
+
+	public float GetCurrentTime()
+	{
+		return GetEntPropFloat(this.GetEntIndex(), Prop_Data, "m_flCurrentTime");
+	}
+	public void SetCurrentTime(const float flCurrentTime)
+	{
+		SetEntPropFloat(this.GetEntIndex(), Prop_Data, "m_flCurrentTime", flCurrentTime);
+	}
+	public float GetForceClientTime()
+	{
+		return GetEntPropFloat(this.GetEntIndex(), Prop_Data, "m_flForceClientTime");
+	}
+	public void SetForceClientTime(const float flForceClientTime)
+	{
+		SetEntPropFloat(this.GetEntIndex(), Prop_Data, "m_flForceClientTime", flForceClientTime);
+	}
 }
 
 methodmap CSoundEnt < CPointEntity
@@ -3174,4 +3204,21 @@ methodmap CGlobalVarsBase
 methodmap CGlobalVars < CGlobalVarsBase
 {
 
+}
+
+methodmap AI_CriteriaSet
+{
+	public AI_CriteriaSet(const Address pAddress)
+	{
+		return view_as<AI_CriteriaSet>(pAddress);
+	}
+
+	public Address GetAddress()
+	{
+		return view_as<Address>(this);
+	}
+	public void AppendCriteria(const char[] szCriteria, const char[] szValue, const float flWeight = 1.0)
+	{
+		SDKCall(g_pAppendCriteria, this.GetAddress(), szCriteria, szValue, flWeight);
+	}
 }

scripting/include/srccoop/entitypatch.inc

@@ -190,6 +190,41 @@ public MRESReturn Hook_FindNamedEntity(int _this, Handle hReturn, Handle hParams
 	return MRES_Ignored;
 }
 
+//------------------------------------------------------
+// NPCs that use the response system https://developer.valvesoftware.com/wiki/Response_System
+// The original function calls `AI_GetSinglePlayer()` which will end up returning null.
+//------------------------------------------------------
+public MRESReturn Hook_ExpresserHost_DoModifyOrAppendCriteriaPost(Handle hParams)
+{
+	CBaseEntity pSpeaker = CBaseEntity(DHookGetParam(hParams, 1));
+	CBasePlayer pPlayer = GetNearestPlayerPreferAlive(pSpeaker, true);
+	if (pPlayer != NULL_CBASEENTITY)
+	{
+		AI_CriteriaSet pCriteria = AI_CriteriaSet(DHookGetParam(hParams, 2));
+
+		float vec3SpeakerPosition[3];
+		pSpeaker.GetAbsOrigin(vec3SpeakerPosition);
+
+		float vec3PlayerPosition[3];
+		pPlayer.GetAbsOrigin(vec3PlayerPosition);
+
+		int iLength = RoundFloat(GetVectorDistance(vec3SpeakerPosition, vec3PlayerPosition));
+
+		// This is rounded from a float to string to save stack space for string formatting.
+		char szLength[16];
+		IntToString(iLength, szLength, sizeof(szLength));
+		pCriteria.AppendCriteria("distancetoplayer", szLength);
+
+		// Original SDK code checks if the player is looking at the speaker.
+		// This is not used as the closest player that is alive may not be looking at the speaker while other players are.
+		if (/*pPlayer.FInViewConeEntity(pSpeaker) &&*/ pPlayer.FVisibleEntity(pSpeaker))
+		{
+			pCriteria.AppendCriteria("seenbyplayer", "1");
+		}
+	}
+	return MRES_Ignored;
+}
+
 //------------------------------------------------------
 // CChangelevel - trigger_changelevel
 // Hook to handle mapchanges

scripting/include/srccoop/globals.inc

@@ -78,9 +78,10 @@ DynamicHook hkIsPlayerAlly;
 DynamicHook hkProtoSniperSelectSchedule;
 #endif
 
-#if defined ENTPATCH_FIND_NAMED_ENTITY
+#if defined ENTPATCH_NPC_DIALOGUE
 DynamicHook hkFindNamedEntity;
 DynamicHook hkFindNamedEntityClosest;
+DynamicDetour hkExpresserHostDoModifyOrAppendCriteria;
 #endif
 
 #if defined SRCCOOP_BLACKMESA

scripting/srccoop.sp

@@ -64,9 +64,10 @@ void LoadGameData()
 	LoadDHookVirtual(pGameConfig, hkIsPlayerAlly, "CAI_BaseNPC::IsPlayerAlly");
 	#endif
 
-	#if defined ENTPATCH_FIND_NAMED_ENTITY
+	#if defined ENTPATCH_NPC_DIALOGUE
 	LoadDHookVirtual(pGameConfig, hkFindNamedEntity, "CSceneEntity::FindNamedEntity");
 	LoadDHookVirtual(pGameConfig, hkFindNamedEntityClosest, "CSceneEntity::FindNamedEntityClosest");
+	LoadDHookDetour(pGameConfig, hkExpresserHostDoModifyOrAppendCriteria, "CAI_ExpresserHost_NPC_DoModifyOrAppendCriteria", _, Hook_ExpresserHost_DoModifyOrAppendCriteriaPost);
 	#endif
 
 	#if defined ENTPATCH_SNIPER
@@ -822,7 +823,7 @@ public void OnEntityCreated(int iEntIndex, const char[] szClassname)
 		}
 		#endif
 
-		#if defined ENTPATCH_FIND_NAMED_ENTITY
+		#if defined ENTPATCH_NPC_DIALOGUE
 		if ((strcmp(szClassname, "instanced_scripted_scene", false) == 0) ||
 				(strcmp(szClassname, "logic_choreographed_scene", false) == 0) ||
 				(strcmp(szClassname, "scripted_scene", false) == 0))