Bot Relocation

* Marine bots can now relocate their base to a nearby hive
* If the chance to relocate is above 0 (configurable in nsbots.ini) then the bots will relocate at the start of a match based on the percentage set, or if the current base is overrun and about to be lost
* The bot will recycle the old comm chair
* The bot will abandon the relocation attempt if unsuccessful 90 seconds into a match

main/nsbots.ini

@@ -14,6 +14,9 @@ MaxAIMatchTime=90
 # 2 = When the round has started (after countdown)
 BotFillTiming=1
 
+# Chance the AI commander will try to relocate to an empty hive at match start
+# Value is a decimal between 0.0 and 1.0, with 0 being never and 1 being always
+RelocationChance=0.1
 
 ### Skill Settings ###
 

main/source/mod/AvHAICommander.cpp

@@ -8,6 +8,7 @@
 #include "AvHAITask.h"
 #include "AvHAIHelper.h"
 #include "AvHAIPlayerManager.h"
+#include "AvHAIConfig.h"
 
 #include "AvHSharedUtil.h"
 #include "AvHServerUtil.h"
@@ -3701,6 +3702,8 @@ void AICOMM_ReceiveChatRequest(AvHAIPlayer* Commander, edict_t* Requestor, const
 
 bool AICOMM_ShouldCommanderRelocate(AvHAIPlayer* pBot)
 {
+	if (!CONFIG_IsRelocationAllowed()) { return false; }
+
 	AvHTeamNumber Team = pBot->Player->GetTeam();
 	AvHTeamNumber EnemyTeam = AIMGR_GetEnemyTeam(Team);
 
@@ -3818,13 +3821,13 @@ bool AICOMM_ShouldCommanderRelocate(AvHAIPlayer* pBot)
 		}
 
 		// If the match has been going on for a minute and we haven't made any progress in relocation then give up, or we risk losing everything
-		if (AIMGR_GetMatchLength() > 60.0f)
+		if (AIMGR_GetMatchLength() > 90.0f)
 		{
 			return AITAC_GetNumPlayersOfTeamInArea(Team, pBot->RelocationSpot, UTIL_MetresToGoldSrcUnits(10.0f), false, nullptr, AVH_USER3_COMMANDER_PLAYER) > 0;
 		}
 	}
 
-	return true;
+	return AITAC_IsRelocationEnabled();
 }
 
 bool AICOMM_CheckForNextRelocationAction(AvHAIPlayer* pBot)
@@ -3877,7 +3880,12 @@ bool AICOMM_CheckForNextRelocationAction(AvHAIPlayer* pBot)
 
 	if (!RelocationCommChair.IsValid())
 	{
-		Vector BuildPoint = UTIL_GetRandomPointOnNavmeshInRadius(GetBaseNavProfile(STRUCTURE_BASE_NAV_PROFILE), RelocationPoint, UTIL_MetresToGoldSrcUnits(2.0f));
+		Vector BuildPoint = AITAC_GetRandomBuildHintInLocation(STRUCTURE_MARINE_COMMCHAIR, pBot->RelocationSpot, UTIL_MetresToGoldSrcUnits(10.0f));
+
+		if (vIsZero(BuildPoint))
+		{
+			BuildPoint = UTIL_GetRandomPointOnNavmeshInRadius(GetBaseNavProfile(STRUCTURE_BASE_NAV_PROFILE), RelocationPoint, UTIL_MetresToGoldSrcUnits(2.0f));
+		}
 
 		if (vIsZero(BuildPoint))
 		{

main/source/mod/AvHAIConfig.cpp

@@ -12,7 +12,7 @@ BotFillTiming CurrentBotFillTiming = FILLTIMING_ALLHUMANS;
 
 float MaxAIMatchTimeMinutes = 90.0f;
 
-bool bRelocationAllowed = false;
+float RelocationChance = 0.1f;
 
 std::unordered_map<std::string, TeamSizeDefinitions> TeamSizeMap;
 
@@ -94,7 +94,12 @@ bool CONFIG_IsOnosAllowed()
 
 bool CONFIG_IsRelocationAllowed()
 {
-    return bRelocationAllowed;
+    return RelocationChance > 0.0f;
+}
+
+float CONFIG_GetRelocationChance()
+{
+    return RelocationChance;
 }
 
 float CONFIG_GetMaxStuckTime()
@@ -335,10 +340,10 @@ void CONFIG_ParseConfigFile()
                 continue;
             }
 
-            if (!stricmp(keyChar, "AllowRelocation"))
+            if (!stricmp(keyChar, "RelocationChance"))
             {
-                const char* ValueChar = value.c_str();
+                float RelocationValue = std::stof(value.c_str());
-                bRelocationAllowed = (!stricmp(ValueChar, "True") || !stricmp(ValueChar, "T"));
+                RelocationChance = RelocationValue;
 
                 continue;
             }
@@ -656,7 +661,11 @@ void CONFIG_RegenerateIniFile()
     fprintf(NewConfigFile, "# 0 = On map load (after 5 second grace period)\n");
     fprintf(NewConfigFile, "# 1 = When all humans have joined a team (i.e. no more humans left in ready room)\n");
     fprintf(NewConfigFile, "# 2 = When the round has started (after countdown)\n");
-    fprintf(NewConfigFile, "BotFillTiming=1\n\n\n");
+    fprintf(NewConfigFile, "BotFillTiming=1\n\n");
+
+    fprintf(NewConfigFile, "# Chance the AI Commander will try to relocate at the beginning of the game\n");
+    fprintf(NewConfigFile, "# Value is a decimal between 0.0 and 1.0, with 0 being never and 1 being always\n");
+    fprintf(NewConfigFile, "RelocationChance=0.1\n\n\n");
 
 
     fprintf(NewConfigFile, "### Skill Settings ###\n\n");

main/source/mod/AvHAIConfig.h

@@ -44,6 +44,7 @@ bool CONFIG_IsFadeAllowed();
 bool CONFIG_IsOnosAllowed();
 
 bool CONFIG_IsRelocationAllowed();
+float CONFIG_GetRelocationChance();
 
 // Returns the max time a bot is allowed to be stuck before suiciding (0 means forever)
 float CONFIG_GetMaxStuckTime();

main/source/mod/AvHAIPlayerManager.cpp

@@ -930,6 +930,8 @@ void AIMGR_ResetRound()
 	bMapDataInitialised = true;
 
 	CountdownStartedTime = 0.0f;
+
+	AITAC_DetermineRelocationEnabled();
 }
 
 void AIMGR_ReloadNavigationData()

main/source/mod/AvHAIPlayerUtil.cpp

@@ -73,6 +73,7 @@ bool IsPlayerClimbingWall(const edict_t* Player)
 
 bool IsPlayerInReadyRoom(const edict_t* Player)
 {
+	if (FNullEnt(Player)) { return false; }
 	return Player->v.playerclass == PLAYMODE_READYROOM;
 }
 

main/source/mod/AvHAITactical.cpp

@@ -58,6 +58,8 @@ Vector TeamBStartingLocation = ZERO_VECTOR;
 Vector TeamARelocationPoint = ZERO_VECTOR;
 Vector TeamBRelocationPoint = ZERO_VECTOR;
 
+bool bEnableRelocation = false; // For this round, should the AI commander try relocating (if appropriate)?
+
 extern nav_mesh NavMeshes[MAX_NAV_MESHES]; // Array of nav meshes. Currently only 3 are used (building, onos, and regular)
 extern nav_profile BaseNavProfiles[MAX_NAV_PROFILES]; // Array of nav profiles
 
@@ -5559,7 +5561,7 @@ void AITAC_ManageSquads()
 		for (auto pIt = it->SquadMembers.begin(); pIt != it->SquadMembers.end();)
 		{
 			AvHAIPlayer* ThisPlayer = (*pIt);
-			if (!AITAC_IsBotPursuingSquadObjective(ThisPlayer, &(*it)))
+			if (!ThisPlayer || FNullEnt(ThisPlayer->Edict) || !AITAC_IsBotPursuingSquadObjective(ThisPlayer, &(*it)))
 			{
 				pIt = it->SquadMembers.erase(pIt);
 			}
@@ -5780,8 +5782,6 @@ Vector AITAC_GetGatherLocationForSquad(AvHAISquad* Squad)
 
 Vector AITAC_FindNewTeamRelocationPoint(AvHTeamNumber Team)
 {
-	if (!CONFIG_IsRelocationAllowed()) { return ZERO_VECTOR; }
-
 	AvHTeamNumber EnemyTeam = AIMGR_GetEnemyTeam(Team);
 
 	// Only relocate if:
@@ -5929,4 +5929,21 @@ bool AITAC_IsRelocationCompleted(AvHTeamNumber RelocationTeam, Vector Relocation
 	}
 
 	return true;
+}
+
+bool AITAC_IsRelocationEnabled()
+{
+	return bEnableRelocation;
+}
+
+void AITAC_DetermineRelocationEnabled()
+{
+	bEnableRelocation = false;
+
+	if (CONFIG_IsRelocationAllowed())
+	{
+		float RandomRoll = frandrange(0.0f, 1.0f);
+
+		bEnableRelocation = (RandomRoll <= CONFIG_GetRelocationChance());
+	}
 }

main/source/mod/AvHAITactical.h

@@ -216,4 +216,8 @@ Vector AITAC_FindNewTeamRelocationPoint(AvHTeamNumber Team);
 bool AITAC_IsRelocationPointStillValid(AvHTeamNumber RelocationTeam, Vector RelocationPoint);
 bool AITAC_IsRelocationCompleted(AvHTeamNumber RelocationTeam, Vector RelocationPoint);
 
+bool AITAC_IsRelocationEnabled();
+
+void AITAC_DetermineRelocationEnabled();
+
 #endif

main/source/mod/AvHAITask.cpp

@@ -987,6 +987,8 @@ bool AITASK_IsMarineSecureHiveTaskStillValid(AvHAIPlayer* pBot, AvHAIPlayerTask*
 
 	if (!HiveToSecure || HiveToSecure->Status != HIVE_STATUS_UNBUILT) { return false; }
 
+	
+
 	// A marine bot will consider their "secure hive" task completed if the following structures have been fully built:
 	// Phase gate (only if tech available)
 	// Turret factory (regular or advanced)
@@ -995,6 +997,12 @@ bool AITASK_IsMarineSecureHiveTaskStillValid(AvHAIPlayer* pBot, AvHAIPlayerTask*
 
 	AvHTeamNumber BotTeam = pBot->Player->GetTeam();
 
+	// We've relocated to this hive, no need to secure now
+	if (vDist2DSq(AITAC_GetTeamStartingLocation(BotTeam), HiveToSecure->FloorLocation) < sqrf(UTIL_MetresToGoldSrcUnits(10.0f)))
+	{
+		return false;
+	}
+
 	bool bPhaseGatesAvailable = AITAC_PhaseGatesAvailable(BotTeam);
 
 	bool bHasPhaseGate = false;