mirror of
https://github.com/alliedmodders/hl2sdk.git
synced 2025-09-19 20:16:10 +08:00
Added original SDK code for Alien Swarm.
This commit is contained in:
Scott Ehlert
395
game/server/nav_entities.cpp
Normal file
395
game/server/nav_entities.cpp
Normal file
@ -0,0 +1,395 @@
|
||||
//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
|
||||
//
|
||||
// Purpose:
|
||||
//
|
||||
// $NoKeywords: $
|
||||
//
|
||||
//=============================================================================//
|
||||
// nav_entities.cpp
|
||||
// AI Navigation entities
|
||||
// Author: Michael S. Booth (mike@turtlerockstudios.com), January 2003
|
||||
|
||||
#include "cbase.h"
|
||||
|
||||
#include "nav_mesh.h"
|
||||
#include "nav_node.h"
|
||||
#include "nav_pathfind.h"
|
||||
#include "nav_colors.h"
|
||||
#include "fmtstr.h"
|
||||
#include "props_shared.h"
|
||||
#include "func_breakablesurf.h"
|
||||
|
||||
|
||||
|
||||
#include "Color.h"
|
||||
#include "collisionutils.h"
|
||||
#include "functorutils.h"
|
||||
#include "team.h"
|
||||
#include "nav_entities.h"
|
||||
|
||||
// memdbgon must be the last include file in a .cpp file!!!
|
||||
#include "tier0/memdbgon.h"
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
BEGIN_DATADESC( CFuncNavBlocker )
|
||||
|
||||
// Inputs
|
||||
DEFINE_INPUTFUNC( FIELD_VOID, "BlockNav", InputBlockNav ),
|
||||
DEFINE_INPUTFUNC( FIELD_VOID, "UnblockNav", InputUnblockNav ),
|
||||
DEFINE_KEYFIELD( m_blockedTeamNumber, FIELD_INTEGER, "teamToBlock" ),
|
||||
DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "StartDisabled" ),
|
||||
|
||||
END_DATADESC()
|
||||
|
||||
|
||||
LINK_ENTITY_TO_CLASS( func_nav_blocker, CFuncNavBlocker );
|
||||
|
||||
|
||||
CUtlLinkedList<CFuncNavBlocker *> CFuncNavBlocker::gm_NavBlockers;
|
||||
|
||||
//-----------------------------------------------------------------------------------------------------
|
||||
int CFuncNavBlocker::DrawDebugTextOverlays( void )
|
||||
{
|
||||
int offset = BaseClass::DrawDebugTextOverlays();
|
||||
|
||||
if (m_debugOverlays & OVERLAY_TEXT_BIT)
|
||||
{
|
||||
CFmtStr str;
|
||||
|
||||
// FIRST_GAME_TEAM skips TEAM_SPECTATOR and TEAM_UNASSIGNED, so we can print
|
||||
// useful team names in a non-game-specific fashion.
|
||||
for ( int i=FIRST_GAME_TEAM; i<FIRST_GAME_TEAM + MAX_NAV_TEAMS; ++i )
|
||||
{
|
||||
if ( IsBlockingNav( i ) )
|
||||
{
|
||||
CTeam *team = GetGlobalTeam( i );
|
||||
if ( team )
|
||||
{
|
||||
EntityText( offset++, str.sprintf( "blocking team %s", team->GetName() ), 0 );
|
||||
}
|
||||
else
|
||||
{
|
||||
EntityText( offset++, str.sprintf( "blocking team %d", i ), 0 );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
NavAreaCollector collector( true );
|
||||
Extent extent;
|
||||
extent.Init( this );
|
||||
TheNavMesh->ForAllAreasOverlappingExtent( collector, extent );
|
||||
|
||||
for ( int i=0; i<collector.m_area.Count(); ++i )
|
||||
{
|
||||
CNavArea *area = collector.m_area[i];
|
||||
Extent areaExtent;
|
||||
area->GetExtent( &areaExtent );
|
||||
debugoverlay->AddBoxOverlay( vec3_origin, areaExtent.lo, areaExtent.hi, vec3_angle, 0, 255, 0, 10, NDEBUG_PERSIST_TILL_NEXT_SERVER );
|
||||
}
|
||||
}
|
||||
|
||||
return offset;
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::UpdateBlocked()
|
||||
{
|
||||
NavAreaCollector collector( true );
|
||||
Extent extent;
|
||||
extent.Init( this );
|
||||
TheNavMesh->ForAllAreasOverlappingExtent( collector, extent );
|
||||
|
||||
for ( int i=0; i<collector.m_area.Count(); ++i )
|
||||
{
|
||||
CNavArea *area = collector.m_area[i];
|
||||
area->UpdateBlocked( true );
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
// Forces nav areas to unblock when the nav blocker is deleted (round restart) so flow can compute properly
|
||||
void CFuncNavBlocker::UpdateOnRemove( void )
|
||||
{
|
||||
UnblockNav();
|
||||
|
||||
gm_NavBlockers.FindAndRemove( this );
|
||||
|
||||
BaseClass::UpdateOnRemove();
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::Spawn( void )
|
||||
{
|
||||
gm_NavBlockers.AddToTail( this );
|
||||
|
||||
if ( !m_blockedTeamNumber )
|
||||
m_blockedTeamNumber = TEAM_ANY;
|
||||
|
||||
SetMoveType( MOVETYPE_NONE );
|
||||
SetModel( STRING( GetModelName() ) );
|
||||
AddEffects( EF_NODRAW );
|
||||
SetCollisionGroup( COLLISION_GROUP_NONE );
|
||||
SetSolid( SOLID_NONE );
|
||||
AddSolidFlags( FSOLID_NOT_SOLID );
|
||||
CollisionProp()->WorldSpaceAABB( &m_CachedMins, &m_CachedMaxs );
|
||||
if ( m_bDisabled )
|
||||
{
|
||||
UnblockNav();
|
||||
}
|
||||
else
|
||||
{
|
||||
BlockNav();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::InputBlockNav( inputdata_t &inputdata )
|
||||
{
|
||||
BlockNav();
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::InputUnblockNav( inputdata_t &inputdata )
|
||||
{
|
||||
UnblockNav();
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::BlockNav( void )
|
||||
{
|
||||
if ( m_blockedTeamNumber == TEAM_ANY )
|
||||
{
|
||||
for ( int i=0; i<MAX_NAV_TEAMS; ++i )
|
||||
{
|
||||
m_isBlockingNav[ i ] = true;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int teamNumber = m_blockedTeamNumber % MAX_NAV_TEAMS;
|
||||
m_isBlockingNav[ teamNumber ] = true;
|
||||
}
|
||||
|
||||
Extent extent;
|
||||
extent.Init( this );
|
||||
TheNavMesh->ForAllAreasOverlappingExtent( *this, extent );
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavBlocker::UnblockNav( void )
|
||||
{
|
||||
if ( m_blockedTeamNumber == TEAM_ANY )
|
||||
{
|
||||
for ( int i=0; i<MAX_NAV_TEAMS; ++i )
|
||||
{
|
||||
m_isBlockingNav[ i ] = false;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int teamNumber = m_blockedTeamNumber % MAX_NAV_TEAMS;
|
||||
m_isBlockingNav[ teamNumber ] = false;
|
||||
}
|
||||
|
||||
UpdateBlocked();
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
// functor that blocks areas in our extent
|
||||
bool CFuncNavBlocker::operator()( CNavArea *area )
|
||||
{
|
||||
area->MarkAsBlocked( m_blockedTeamNumber, this );
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
bool CFuncNavBlocker::CalculateBlocked( bool *pResultByTeam, const Vector &vecMins, const Vector &vecMaxs )
|
||||
{
|
||||
int nTeamsBlocked = 0;
|
||||
int i;
|
||||
bool bBlocked = false;
|
||||
for ( i=0; i<MAX_NAV_TEAMS; ++i )
|
||||
{
|
||||
pResultByTeam[i] = false;
|
||||
}
|
||||
|
||||
FOR_EACH_LL( gm_NavBlockers, iBlocker )
|
||||
{
|
||||
CFuncNavBlocker *pBlocker = gm_NavBlockers[iBlocker];
|
||||
bool bIsIntersecting = false;
|
||||
|
||||
for ( i=0; i<MAX_NAV_TEAMS; ++i )
|
||||
{
|
||||
if ( pBlocker->m_isBlockingNav[i] )
|
||||
{
|
||||
if ( !pResultByTeam[i] )
|
||||
{
|
||||
if ( bIsIntersecting || ( bIsIntersecting = IsBoxIntersectingBox( pBlocker->m_CachedMins, pBlocker->m_CachedMaxs, vecMins, vecMaxs ) ) != false )
|
||||
{
|
||||
bBlocked = true;
|
||||
pResultByTeam[i] = true;
|
||||
nTeamsBlocked++;
|
||||
}
|
||||
else
|
||||
{
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( nTeamsBlocked == MAX_NAV_TEAMS )
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
return bBlocked;
|
||||
}
|
||||
|
||||
|
||||
//-----------------------------------------------------------------------------------------------------
|
||||
/**
|
||||
* An entity that can obstruct nav areas. This is meant for semi-transient areas that obstruct
|
||||
* pathfinding but can be ignored for longer-term queries like computing L4D flow distances and
|
||||
* escape routes.
|
||||
*/
|
||||
class CFuncNavObstruction : public CBaseEntity, public INavAvoidanceObstacle
|
||||
{
|
||||
DECLARE_DATADESC();
|
||||
DECLARE_CLASS( CFuncNavObstruction, CBaseEntity );
|
||||
|
||||
public:
|
||||
void Spawn();
|
||||
virtual void UpdateOnRemove( void );
|
||||
|
||||
void InputEnable( inputdata_t &inputdata );
|
||||
void InputDisable( inputdata_t &inputdata );
|
||||
|
||||
virtual bool IsPotentiallyAbleToObstructNavAreas( void ) const { return true; } // could we at some future time obstruct nav?
|
||||
virtual float GetNavObstructionHeight( void ) const { return JumpCrouchHeight; } // height at which to obstruct nav areas
|
||||
virtual bool CanObstructNavAreas( void ) const { return !m_bDisabled; } // can we obstruct nav right this instant?
|
||||
virtual CBaseEntity *GetObstructingEntity( void ) { return this; }
|
||||
virtual void OnNavMeshLoaded( void )
|
||||
{
|
||||
if ( !m_bDisabled )
|
||||
{
|
||||
ObstructNavAreas();
|
||||
}
|
||||
}
|
||||
|
||||
int DrawDebugTextOverlays( void );
|
||||
|
||||
bool operator()( CNavArea *area ); // functor that obstructs areas in our extent
|
||||
|
||||
private:
|
||||
|
||||
void ObstructNavAreas( void );
|
||||
bool m_bDisabled;
|
||||
};
|
||||
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
BEGIN_DATADESC( CFuncNavObstruction )
|
||||
DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "StartDisabled" ),
|
||||
END_DATADESC()
|
||||
|
||||
|
||||
LINK_ENTITY_TO_CLASS( func_nav_avoidance_obstacle, CFuncNavObstruction );
|
||||
|
||||
|
||||
//-----------------------------------------------------------------------------------------------------
|
||||
int CFuncNavObstruction::DrawDebugTextOverlays( void )
|
||||
{
|
||||
int offset = BaseClass::DrawDebugTextOverlays();
|
||||
|
||||
if (m_debugOverlays & OVERLAY_TEXT_BIT)
|
||||
{
|
||||
if ( CanObstructNavAreas() )
|
||||
{
|
||||
EntityText( offset++, "Obstructing nav", NDEBUG_PERSIST_TILL_NEXT_SERVER );
|
||||
}
|
||||
else
|
||||
{
|
||||
EntityText( offset++, "Not obstructing nav", NDEBUG_PERSIST_TILL_NEXT_SERVER );
|
||||
}
|
||||
}
|
||||
|
||||
return offset;
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavObstruction::UpdateOnRemove( void )
|
||||
{
|
||||
TheNavMesh->UnregisterAvoidanceObstacle( this );
|
||||
|
||||
BaseClass::UpdateOnRemove();
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavObstruction::Spawn( void )
|
||||
{
|
||||
SetMoveType( MOVETYPE_NONE );
|
||||
SetModel( STRING( GetModelName() ) );
|
||||
AddEffects( EF_NODRAW );
|
||||
SetCollisionGroup( COLLISION_GROUP_NONE );
|
||||
SetSolid( SOLID_NONE );
|
||||
AddSolidFlags( FSOLID_NOT_SOLID );
|
||||
|
||||
if ( !m_bDisabled )
|
||||
{
|
||||
ObstructNavAreas();
|
||||
TheNavMesh->RegisterAvoidanceObstacle( this );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavObstruction::InputEnable( inputdata_t &inputdata )
|
||||
{
|
||||
m_bDisabled = false;
|
||||
ObstructNavAreas();
|
||||
TheNavMesh->RegisterAvoidanceObstacle( this );
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavObstruction::InputDisable( inputdata_t &inputdata )
|
||||
{
|
||||
m_bDisabled = true;
|
||||
TheNavMesh->UnregisterAvoidanceObstacle( this );
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
void CFuncNavObstruction::ObstructNavAreas( void )
|
||||
{
|
||||
Extent extent;
|
||||
extent.Init( this );
|
||||
TheNavMesh->ForAllAreasOverlappingExtent( *this, extent );
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------
|
||||
// functor that blocks areas in our extent
|
||||
bool CFuncNavObstruction::operator()( CNavArea *area )
|
||||
{
|
||||
area->MarkObstacleToAvoid( GetNavObstructionHeight() );
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
//--------------------------------------------------------------------------------------------------------------
|
||||
Reference in New Issue
Block a user