425 lines
12 KiB
Ucode
425 lines
12 KiB
Ucode
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//=============================================================================
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// KFAIDirector
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//=============================================================================
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// Oversees AI responses to game events
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//=============================================================================
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// Killing Floor 2
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// Copyright (C) 2015 Tripwire Interactive LLC
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//=============================================================================
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class KFAIDirector extends Object within KFGameInfo
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config(Game)
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native(AI);
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/** List of current living Zeds, can be used by Zeds to access other Zeds without iterating through
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all pawns, etc. */
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var array <KFAIController> AIList;
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/** Forces clots to initially sprint to perform their first grab - code in KFAIController_ZedClot must
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be uncommented out (ShouldSprint()). */
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var config bool bAISprintToGrabVictim;
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/** Global status of NPC debug text rendering - can be used to make sure all newly spawned NPCs begin showing their
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debug text as soon as they possess their pawns */
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var config bool bShowAINames;
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/** Forces newly possessing KFAIControllers into debug mode when true */
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var config bool bDebugAllAI;
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/** When true, will receive notification when a player is grabbed, allowing nearby Zeds to then target the grabbed player */
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var bool bUseGrabAlerts;
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/** Max distance from grabbed player at which to alert Zeds */
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var float GrabAlertMaxZedDistance;
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/** Turns on forced frustation mode */
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var bool bForceFrustration;
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/** List of all active bosses. */
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var array<KFPawn_Monster> ActiveBossList;
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/** A bi-direction graph representation of the connections between doors for long range "Macro" pathing decisions*/
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//var KFDoorGraph DoorGraph;
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var vector CurrentLocationSortingDoorsFor;
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////
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///
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// Ai Debug Helpers
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///
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////
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var private Font AiDebugScreenLargeFont;
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var config string AiDebugScreenLargeFontName;
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var private Texture2D DebugIsSprintingIcon;
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var config string DebugIsSprintingIconName;
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var private Texture2D DebugIsWalkingIcon;
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var config string DebugIsWalkingIconName;
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var config bool bLoadDebugPackageResourcesAtStart;
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var bool bShowVisualStuckZedDebugInfo;
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var bool bShowMovePointsDebugInfo;
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var bool bShowHighDetailCombatMovementDebugInfo;
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var bool bShowCollisionRadiusForReducedZedOnZedPinchPointCollisionState;
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var bool bShowLeapDownDebugArtifacts;
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var bool bShowDoorNavigationDebugArtifacts;
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var bool bShowDestructibleNavigationDebugArtifacts;
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/** Struct that info about each squad member */
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struct native ActiveAIInfo
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{
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var Controller Member;
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};
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/** Array of all squad members */
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var array<ActiveAIInfo> ActiveZeds;
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native function RebuildAIList();
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native function LoadAiDebugResources();
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/**
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* Initialize
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*
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*/
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function Initialize()
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{
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if( bLoadDebugPackageResourcesAtStart )
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{
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LoadAiDebugResources();
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}
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//SetupDoorGraph();
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bShowVisualStuckZedDebugInfo = class'KFAiController'.default.bConfigShowVisualStuckZedDebugInfo;
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bShowMovePointsDebugInfo = class'KFAiController'.default.bConfigShowMovePointsDebugInfo;
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bShowHighDetailCombatMovementDebugInfo = class'KFAiController'.default.bConfigShowHighDetailCombatMovementDebugInfo;
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bShowCollisionRadiusForReducedZedOnZedPinchPointCollisionState = class'KFAiController'.default.bConfigShowCollisionRadiusForReducedZedOnZedPinchPointCollisionState;
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bShowLeapDownDebugArtifacts = class'KFAiController'.default.bConfigShowLeapDownDebugArtifacts;
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bShowDoorNavigationDebugArtifacts = class'KFAiController'.default.bConfigShowDoorNavigationDebugArtifacts;
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bShowDestructibleNavigationDebugArtifacts = class'KFAiController'.default.bConfigShowDestructibleNavigationDebugArtifacts;
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}
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/** Toggles debug-mode on/off for all existing Zeds */
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function SetAIDebug( bool bOn )
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{
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local int i;
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bDebugAllAI = bOn;
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for( i = 0; i < AIList.Length; i++ )
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{
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if( AIList[i].bForceDebugCommand )
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{
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AIList[i].bForceDebugCommand = bOn;
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}
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AIList[i].Pawn.ZeroMovementVariables();
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AIList[i].AbortMovementCommands();
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AIList[i].AbortMovementPlugIns();
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if( !bOn && AIList[i].bHasDebugCommand )
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{
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AIList[i].AbortCommand( None, class'AICommand_Debug' );
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AIList[i].GotoState( 'Action_Idle', 'Begin' );
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}
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if( bOn )
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{
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AIList[i].BeginDebugCommand();
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}
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}
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}
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/**
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* Returns the engine's default large font
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*/
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final function Font GetAiDebugScreenLargeFont()
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{
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if( AiDebugScreenLargeFont == none )
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{
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LoadAiDebugResources();
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}
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return AiDebugScreenLargeFont;
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}
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/**
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* GetDebugIsSprintingIcon
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*/
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final function Texture2D GetDebugIsSprintingIcon()
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{
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if( DebugIsSprintingIcon == none )
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{
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LoadAiDebugResources();
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}
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return DebugIsSprintingIcon;
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}
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/**
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* GetDebugIsWalkingIcon
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*/
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final function Texture2D GetDebugIsWalkingIcon()
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{
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if( DebugIsWalkingIcon == none )
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{
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LoadAiDebugResources();
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}
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return DebugIsWalkingIcon;
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}
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/** Notification that the calling KFAIController has just possessed a new pawn */
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function NotifyNewPossess( KFAIController KFAIC )
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{
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`AILog_Ext( GetFuncName()$" registering new Possession by "$KFAIC, 'AIDirector', KFAIC );
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RegisterAIMember( KFAIC );
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KFAIC.bForceDebugCommand = bDebugAllAI;
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}
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final function RegisterAIMember( Controller NewMember )
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{
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local int Idx;
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local KFAIController KFAIC;
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if (NewMember != None)
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{
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if (ActiveZeds.Find('Member', NewMember) != INDEX_NONE)
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{
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}
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else
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{
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// make sure they're not already a member
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UnRegisterAIMember( NewMember );
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Idx = ActiveZeds.Length;
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ActiveZeds.Length = Idx + 1;
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ActiveZeds[Idx].Member = NewMember;
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KFAIC = KFAIController(NewMember);
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// if it's an AI
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if( KFAIC != None )
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{
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`AILog_Ext( GetFuncName()$" Adding "$KFAIC$" to AIList", 'AIDirector', KFAIC );
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AIList.AddItem(KFAIC);
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}
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if (NewMember.Pawn != none && KFPawn_Monster(NewMember.Pawn) != none && KFPawn_Monster(NewMember.Pawn).IsABoss())
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{
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ActiveBossList.AddItem(KFPawn_Monster(NewMember.Pawn));
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}
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}
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}
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}
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/** Remove squad member from this squad and clean up */
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final function UnRegisterAIMember( Controller OldMember )
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{
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local KFAIController KFAIC;
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//local GearPRI PRI;
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local int Idx;
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if (OldMember != None)
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{
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Idx = ActiveZeds.Find( 'Member', OldMember );
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if( Idx >= 0 )
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{
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KFAIC = KFAIController(OldMember);
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ActiveZeds.Remove( Idx, 1 );
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// if it's an AI
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if (KFAIC != None)
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{
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`AILog_Ext( GetFuncName()$" Removing "$KFAIC$" from AIList", 'AIDirector', KFAIC );
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AIList.RemoveItem(KFAIC);
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}
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if (OldMember.Pawn != none && KFPawn_Monster(OldMember.Pawn) != none && KFPawn_Monster(OldMember.Pawn).IsABoss())
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{
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ActiveBossList.RemoveItem(KFPawn_Monster(OldMember.Pawn));
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}
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}
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}
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}
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/** Can be used to let the KFAIDirector find a valid enemy for a KFAIController, optionally not taking
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the KFAIC's current enemy into consideration */
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function Actor FindEnemyFor( KFAIController RequestingAI, optional bool bSkipCurrentEnemy=true )
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{
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local Pawn P;
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local float DistToPlayer, DistToEnemy;
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if( RequestingAI.Pawn == none || !RequestingAI.Pawn.IsAliveAndWell() || RequestingAI.DoorEnemy != none )
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{
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return none;
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}
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if( RequestingAI.MyKFPawn.IsDoingSpecialMove(SM_GrappleAttack) )
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{
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return RequestingAI.Enemy;
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}
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if( RequestingAI.Enemy == none || !RequestingAI.Enemy.IsAliveAndWell() )
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{
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return RequestingAI.GetClosestEnemy();
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}
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for( P = WorldInfo.PawnList; P != none; P = P.NextPawn )
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{
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if( !RequestingAI.Pawn.IsSameTeam(P) && P.IsAliveAndWell() && P != RequestingAI.Enemy )
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{
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DistToPlayer = VSize(P.Location - RequestingAI.Pawn.Location);
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DistToEnemy = VSize(RequestingAI.Enemy.Location - RequestingAI.Pawn.Location);
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if( bSkipCurrentEnemy )
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{
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if( RequestingAI.ActorReachable(P) )
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{
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return P;
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}
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}
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else if( (DistToPlayer < DistToEnemy && FRand() < 0.9f) || (KFPawn(P).IsDoingSpecialMove(SM_GrappleVictim) && (DistToPlayer < 1200.f) && RequestingAI.CanSee(P) && FRand() < 0.85f)
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|| (RequestingAI.Pawn.Health < (0.33f * RequestingAI.Pawn.Default.Health) && FRand() < 0.65f) )
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{
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return P;
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}
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}
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}
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return none;
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}
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// Make nearby zeds more aggressive to the newly grabbed player
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// TODO: Maybe only alert zeds with LOS to the victim if they seem too omniscient - for now it's just checking distance
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function NotifyPawnGrabbed( KFPawn Victim, KFPawn Attacker )
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{
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local KFPawn KFP;
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`AILog_Ext( GetFuncName()$" NotifyPawnGrabbed - victim, "$Victim$" attacker "$Attacker, 'AIDirector', Attacker.MyKFAIC );
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foreach WorldInfo.AllPawns( class'KFPawn', KFP )
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{
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if( (Attacker != none && KFP == Attacker) || KFP.IsSameTeam(Victim) || KFP.MyKFAIC == none || !KFP.IsAliveAndWell()
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|| Victim == none || !Victim.IsAliveAndWell() )
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{
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continue;
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}
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if( VSizeSq( KFP.Location - Victim.Location ) < GrabAlertMaxZedDistance * GrabAlertMaxZedDistance )
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{
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if( KFP.MyKFAIC.Enemy == none || (KFP.MyKFAIC.Enemy != none && KFP.MyKFAIC.Enemy != Victim) )
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{
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//TODO: Make this configurable
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if( KFP.MyKFAIC.Enemy == none || FRand() < 0.85f )
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{
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KFP.MyKFAIC.SetEnemy( Victim );
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}
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}
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}
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if( bAISprintToGrabVictim && KFP.MyKFAIC.Enemy == Victim && FRand() < 0.5f )
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{
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KFP.SetSprinting(true);
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}
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}
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}
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/**
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* FindDoorsWithInRange
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*
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*/
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function array<KFDoorActor> FindDoorsWithInRange( float RangeToBeLessThan, vector Loc2TestFrom )
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{
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local KFDoorActor curDoorActor;
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local KFGameReplicationInfo kfGRI;
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local array<KFDoorActor> doorsInRange;
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local int doorIndex;
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local vector displacement2Door;
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local float distance2Door;
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kfGRI = KFGameReplicationInfo(WorldInfo.GRI);
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for( doorIndex = 0; doorIndex < kfGRI.DoorList.Length; doorIndex++ )
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{
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curDoorActor = kfGRI.DoorList[doorIndex];
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displacement2Door = curDoorActor.Location - Loc2TestFrom;
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distance2Door = VSize( displacement2Door );
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if( distance2Door <= RangeToBeLessThan )
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{
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doorsInRange.AddItem(curDoorActor);
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}
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}
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return doorsInRange;
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}
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delegate int ClosestDoorSort( KFDoorActor A, KFDoorActor B)
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{
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local float distSqToDoorA;
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local float distSqToDoorB;
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distSqToDoorA = VSizeSq( CurrentLocationSortingDoorsFor - A.Location );
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distSqToDoorB = VSizeSq( CurrentLocationSortingDoorsFor - B.Location );
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return distSqToDoorA > distSqToDoorB ? -1 : 0;
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}
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/**
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* FindDoorsWithInRange
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*
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*/
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function array<KFDoorActor> FindClosedDoorsWithInRange( float RangeToBeLessThan, vector Loc2TestFrom )
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{
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local KFDoorActor curDoorActor;
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//local KFGameReplicationInfo kfGRI;
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local array<KFDoorActor> doorsInRange;
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local array<KFDoorActor> closedDoorsInRange;
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local int doorIndex;
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//local vector displacement2Door;
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//local float distance2Door;
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// kfGRI = KFGameReplicationInfo(WorldInfo.GRI);
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doorsInRange = FindDoorsWithInRange( RangeToBeLessThan, Loc2TestFrom );
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for( doorIndex = 0; doorIndex < doorsInRange.Length; doorIndex++ )
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{
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curDoorActor = doorsInRange[doorIndex];
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if( !curDoorActor.IsCompletelyOpen() )
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{
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closedDoorsInRange.AddItem( curDoorActor );
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}
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}
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CurrentLocationSortingDoorsFor = Loc2TestFrom;
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closedDoorsInRange.Sort( ClosestDoorSort );
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return closedDoorsInRange;
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}
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function KFPawn_Monster GetActiveBoss()
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{
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if (ActiveBossList.length > 0)
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{
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return ActiveBossList[0];
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}
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return none;
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}
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DefaultProperties
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{
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GrabAlertMaxZedDistance=2700.f
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bForceFrustration = false;
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}
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