mirror of
https://github.com/ValveSoftware/source-sdk-2013.git
synced 2025-04-06 18:12:14 +00:00
Fixed several +use bugs.
* Fixed not being able to +use objects inside or beyond clip brushes. * Fixed being able to +use NPCs out of +use range in some cases. * Fixed sv_debug_player usage showing incorrect overlays in some cases. * Fixed some questionable math used to determine object distances. * Refactored and commented code used to find the entity being +used.
This commit is contained in:
Tyson Grant Nottingham
parent
55ed12f8d1
commit
13bd3337da
2 changed files with 312 additions and 288 deletions
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@ -1065,205 +1065,218 @@ float IntervalDistance( float x, float x0, float x1 )
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return 0;
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}
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float EstimatedDistanceSquared(const Vector &point, const CBaseEntity *pEntity)
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{
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Vector nearestPoint;
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pEntity->CollisionProp()->CalcNearestPoint( point, &nearestPoint );
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return (nearestPoint - point).LengthSqr();
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}
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CBaseEntity *CBasePlayer::FindUseEntity()
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{
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Vector forward, up;
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EyeVectors( &forward, NULL, &up );
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trace_t tr;
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// Search for objects in a sphere (tests for entities that are not solid, yet still useable)
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Vector forward;
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EyeVectors( &forward, NULL, NULL );
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Vector searchCenter = EyePosition();
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// NOTE: Some debris objects are useable too, so hit those as well
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// A button, etc. can be made out of clip brushes, make sure it's +useable via a traceline, too.
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int useableContents = MASK_SOLID | CONTENTS_DEBRIS | CONTENTS_PLAYERCLIP;
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// Some debris objects are +usable, and clip brushes can be made into
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// +usable entities.
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int usableContents = MASK_SOLID | CONTENTS_DEBRIS | CONTENTS_PLAYERCLIP;
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// However, we occasionally need to ignore clip brushes so that objects
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// inside of or beyond them can be +used.
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const int usableContentsIgnoreClip = usableContents & ~CONTENTS_PLAYERCLIP;
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#ifdef CSTRIKE_DLL
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useableContents = MASK_NPCSOLID_BRUSHONLY | MASK_OPAQUE_AND_NPCS;
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usableContents = MASK_NPCSOLID_BRUSHONLY | MASK_OPAQUE_AND_NPCS;
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#endif
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#ifdef HL1_DLL
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useableContents = MASK_SOLID;
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#endif
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#ifndef CLIENT_DLL
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CBaseEntity *pFoundByTrace = NULL;
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usableContents = MASK_SOLID;
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#endif
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// UNDONE: Might be faster to just fold this range into the sphere query
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CBaseEntity *pObject = NULL;
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// First, try to hit an entity directly in front of the player.
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trace_t directTrace;
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UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, usableContents, this, COLLISION_GROUP_NONE, &directTrace );
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float nearestDist = FLT_MAX;
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// try the hit entity if there is one, or the ground entity if there isn't.
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CBaseEntity *pNearest = NULL;
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CBaseEntity *pObject = directTrace.m_pEnt;
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bool bUsable = IsUseableEntity( pObject, 0 );
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const int NUM_TANGENTS = 8;
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// trace a box at successive angles down
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// forward, 45 deg, 30 deg, 20 deg, 15 deg, 10 deg, -10, -15
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const float tangents[NUM_TANGENTS] = { 0, 1, 0.57735026919f, 0.3639702342f, 0.267949192431f, 0.1763269807f, -0.1763269807f, -0.267949192431f };
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for ( int i = 0; i < NUM_TANGENTS; i++ )
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if ( !bUsable && (directTrace.contents & CONTENTS_PLAYERCLIP) )
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{
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if ( i == 0 )
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{
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UTIL_TraceLine( searchCenter, searchCenter + forward * 1024, useableContents, this, COLLISION_GROUP_NONE, &tr );
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}
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else
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{
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Vector down = forward - tangents[i]*up;
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VectorNormalize(down);
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UTIL_TraceHull( searchCenter, searchCenter + down * 72, -Vector(16,16,16), Vector(16,16,16), useableContents, this, COLLISION_GROUP_NONE, &tr );
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}
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pObject = tr.m_pEnt;
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// If we hit a non-usable clip brush, then try tracing again, ignoring
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// clip brushes, so that object inside of or beyond them can be +used.
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#ifndef CLIENT_DLL
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pFoundByTrace = pObject;
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#endif
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bool bUsable = IsUseableEntity(pObject, 0);
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while ( pObject && !bUsable && pObject->GetMoveParent() )
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{
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pObject = pObject->GetMoveParent();
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bUsable = IsUseableEntity(pObject, 0);
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}
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// NOTE: If a usable clip brush is behind a non-usable clip brush,
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// then we won't be able to +use it, unfortunately. This is difficult
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// to workaround. For example, the non-usable clip brush cannot be added
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// to a list of ignored entities, because it is part of the worldspawn,
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// and we cannot ignore that.
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UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, usableContentsIgnoreClip, this, COLLISION_GROUP_NONE, &directTrace );
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if ( bUsable )
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{
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Vector delta = tr.endpos - tr.startpos;
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float centerZ = CollisionProp()->WorldSpaceCenter().z;
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delta.z = IntervalDistance( tr.endpos.z, centerZ + CollisionProp()->OBBMins().z, centerZ + CollisionProp()->OBBMaxs().z );
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float dist = delta.Length();
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if ( dist < PLAYER_USE_RADIUS )
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{
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#ifndef CLIENT_DLL
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if ( sv_debug_player_use.GetBool() )
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{
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NDebugOverlay::Line( searchCenter, tr.endpos, 0, 255, 0, true, 30 );
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NDebugOverlay::Cross3D( tr.endpos, 16, 0, 255, 0, true, 30 );
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}
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if ( pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
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{
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// If about to select an NPC, do a more thorough check to ensure
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// that we're selecting the right one from a group.
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pObject = DoubleCheckUseNPC( pObject, searchCenter, forward );
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}
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#endif
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if ( sv_debug_player_use.GetBool() )
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{
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Msg( "Trace using: %s\n", pObject ? pObject->GetDebugName() : "no usable entity found" );
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}
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pNearest = pObject;
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// if this is directly under the cursor just return it now
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if ( i == 0 )
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return pObject;
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}
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}
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pObject = directTrace.m_pEnt;
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bUsable = IsUseableEntity( pObject, 0 );
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}
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// check ground entity first
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// if you've got a useable ground entity, then shrink the cone of this search to 45 degrees
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// otherwise, search out in a 90 degree cone (hemisphere)
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if ( GetGroundEntity() && IsUseableEntity(GetGroundEntity(), FCAP_USE_ONGROUND) )
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// If the object is not usable, determine if a move ancestor is.
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while ( pObject && !bUsable && pObject->GetMoveParent() )
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{
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pNearest = GetGroundEntity();
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pObject = pObject->GetMoveParent();
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bUsable = IsUseableEntity( pObject, 0 );
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}
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if ( pNearest )
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if ( bUsable )
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{
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// estimate nearest object by distance from the view vector
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Vector point;
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pNearest->CollisionProp()->CalcNearestPoint( searchCenter, &point );
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nearestDist = CalcDistanceToLine( point, searchCenter, forward );
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if ( sv_debug_player_use.GetBool() )
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{
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Msg("Trace found %s, dist %.2f\n", pNearest->GetClassname(), nearestDist );
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}
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}
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for ( CEntitySphereQuery sphere( searchCenter, PLAYER_USE_RADIUS ); ( pObject = sphere.GetCurrentEntity() ) != NULL; sphere.NextEntity() )
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{
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if ( !pObject )
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continue;
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if ( !IsUseableEntity( pObject, FCAP_USE_IN_RADIUS ) )
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continue;
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// see if it's more roughly in front of the player than previous guess
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Vector point;
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pObject->CollisionProp()->CalcNearestPoint( searchCenter, &point );
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Vector dir = point - searchCenter;
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VectorNormalize(dir);
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float dot = DotProduct( dir, forward );
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// Need to be looking at the object more or less
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if ( dot < 0.8 )
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continue;
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float dist = CalcDistanceToLine( point, searchCenter, forward );
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pNearest = pObject;
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if ( sv_debug_player_use.GetBool() )
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{
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Msg("Radius found %s, dist %.2f\n", pObject->GetClassname(), dist );
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const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
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Msg( "Line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
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}
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}
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else
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{
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// Any objects directly in front of us weren't usable and close enough.
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// Next, determine if the ground entity is usable.
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float nearestDistSquared = FLT_MAX;
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if ( dist < nearestDist )
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if ( GetGroundEntity() && IsUseableEntity( GetGroundEntity(), FCAP_USE_ONGROUND ) )
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{
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// Since this has purely been a radius search to this point, we now
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// make sure the object isn't behind glass or a grate.
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trace_t trCheckOccluded;
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UTIL_TraceLine( searchCenter, point, useableContents, this, COLLISION_GROUP_NONE, &trCheckOccluded );
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pNearest = GetGroundEntity();
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nearestDistSquared = EstimatedDistanceSquared( searchCenter, pNearest );
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if ( trCheckOccluded.fraction == 1.0 || trCheckOccluded.m_pEnt == pObject )
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if ( sv_debug_player_use.GetBool() )
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{
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pNearest = pObject;
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nearestDist = dist;
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Msg( "Ground query found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( nearestDistSquared ) );
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}
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}
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// Next, determine which of the reachable and usable objects in the cone
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// volume directly in front of player is closest, and whether or not any
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// is closer than the ground entity.
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for ( CEntitySphereQuery sphere( searchCenter, PLAYER_USE_RADIUS ); ( pObject = sphere.GetCurrentEntity() ) != NULL; sphere.NextEntity() )
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{
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if ( !IsUseableEntity( pObject, 0 ) )
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continue;
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// Determine if the object is nearer than the previous nearest object.
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Vector nearestPoint;
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pObject->CollisionProp()->CalcNearestPoint( searchCenter, &nearestPoint );
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Vector dir = nearestPoint - searchCenter;
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VectorNormalize(dir);
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// Need to be looking at the object more or less.
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// NOTE: If the closest point on the object happens to be off to the
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// side, even though the object is predominantly if front of the player,
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// then it will be rejected, unfortunately.
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if ( DotProduct( dir, forward ) < 0.8 )
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continue;
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const float distSquared = (nearestPoint - searchCenter).LengthSqr();
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if ( sv_debug_player_use.GetBool() )
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{
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Msg( "Cone query found usable entity: %s, distance: %.2f\n", pObject->GetDebugName(), sqrt( distSquared ) );
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}
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if ( distSquared < nearestDistSquared )
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{
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// The object is inside the cone, but it may be blocked by another
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// object. Verify that we can trace to the object directly.
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// NOTE: this traces to a particular point on the object's collision
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// prop. If the trace to that point happens to be blocked by another
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// object, even though other nearby visible points aren't, then we
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// won't be able to +use the object, unfortunately.
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// We ignore clip brushes here so that objects in or behind clip
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// brushes can be +used. If the current object itself is a usable
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// clip brush, this trace will fail to hit it, but unless it is
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// blocked, the trace fraction will typically be 1.0 anyway, and
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// pNearest will be set to the usable clip brush object.
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trace_t tr;
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UTIL_TraceLine( searchCenter, nearestPoint, usableContentsIgnoreClip, this, COLLISION_GROUP_NONE, &tr );
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if ( tr.fraction == 1.0 || tr.m_pEnt == pObject )
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{
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pNearest = pObject;
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nearestDistSquared = distSquared;
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}
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}
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}
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}
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#ifndef CLIENT_DLL
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if ( !pNearest )
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{
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// Haven't found anything near the player to use, nor any NPC's at distance.
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// Check to see if the player is trying to select an NPC through a rail, fence, or other 'see-though' volume.
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trace_t trAllies;
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UTIL_TraceLine( searchCenter, searchCenter + forward * PLAYER_USE_RADIUS, MASK_OPAQUE_AND_NPCS, this, COLLISION_GROUP_NONE, &trAllies );
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// If we haven't found an object that the player can use yet,
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// allow a player to use an NPC through 'see-through' volumes
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// (rails, fenches, windows, grates, etc.).
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UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, MASK_OPAQUE_AND_NPCS, this, COLLISION_GROUP_NONE, &directTrace );
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pObject = directTrace.m_pEnt;
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if ( trAllies.m_pEnt && IsUseableEntity( trAllies.m_pEnt, 0 ) && trAllies.m_pEnt->MyNPCPointer() && trAllies.m_pEnt->MyNPCPointer()->IsPlayerAlly( this ) )
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if ( pObject && IsUseableEntity( pObject, 0 ) && pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
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{
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// This is an NPC, take it!
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pNearest = trAllies.m_pEnt;
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pNearest = pObject;
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if ( sv_debug_player_use.GetBool() )
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{
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const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
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Msg( "Line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
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}
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}
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}
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if ( pNearest && pNearest->MyNPCPointer() && pNearest->MyNPCPointer()->IsPlayerAlly( this ) )
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if ( pNearest == directTrace.m_pEnt && pNearest && pNearest->MyNPCPointer() && pNearest->MyNPCPointer()->IsPlayerAlly( this ) )
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{
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pNearest = DoubleCheckUseNPC( pNearest, searchCenter, forward );
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}
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// If about to select an NPC with a line trace, do a more thorough
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// check to ensure that we're selecting the right one from a group.
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// Lengthen trace slightly to account for the fact that we're
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// tracing for hitboxes, which are usually farther away than OBBs.
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trace_t tr;
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UTIL_TraceLine( searchCenter, searchCenter + 1.1 * PLAYER_USE_RADIUS * forward, MASK_SHOT, this, COLLISION_GROUP_NONE, &tr );
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pObject = tr.m_pEnt;
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if( pObject != pNearest && pObject && pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
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{
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// Player is selecting a different NPC through some negative space
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// in the first NPC's hitboxes (between legs, over shoulder, etc).
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pNearest = tr.m_pEnt;
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directTrace = tr;
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if ( sv_debug_player_use.GetBool() )
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{
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const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
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Msg( "Hitbox line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
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}
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}
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}
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#endif
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// Draw debug overlays and print debug messages.
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if ( sv_debug_player_use.GetBool() )
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{
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#ifndef CLIENT_DLL
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if ( !pNearest )
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{
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NDebugOverlay::Line( searchCenter, tr.endpos, 255, 0, 0, true, 30 );
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NDebugOverlay::Cross3D( tr.endpos, 16, 255, 0, 0, true, 30 );
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NDebugOverlay::Line( searchCenter, directTrace.endpos, 255, 0, 0, true, 30 );
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NDebugOverlay::Cross3D( directTrace.endpos, 16, 255, 0, 0, true, 30 );
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}
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else if ( pNearest == pFoundByTrace )
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else if ( pNearest == directTrace.m_pEnt )
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{
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NDebugOverlay::Line( searchCenter, tr.endpos, 0, 255, 0, true, 30 );
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NDebugOverlay::Cross3D( tr.endpos, 16, 0, 255, 0, true, 30 );
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NDebugOverlay::Line( searchCenter, directTrace.endpos, 0, 255, 0, true, 30 );
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NDebugOverlay::Cross3D( directTrace.endpos, 16, 0, 255, 0, true, 30 );
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}
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else
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{
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NDebugOverlay::Box( pNearest->WorldSpaceCenter(), Vector(-8, -8, -8), Vector(8, 8, 8), 0, 255, 0, true, 30 );
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}
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}
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#endif
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if ( sv_debug_player_use.GetBool() )
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{
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Msg( "Radial using: %s\n", pNearest ? pNearest->GetDebugName() : "no usable entity found" );
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Msg( "Using: %s\n", pNearest ? pNearest->GetDebugName() : "no usable entity found" );
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}
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return pNearest;
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@ -1298,7 +1311,7 @@ void CBasePlayer::PlayerUse ( void )
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EyeVectors( &forward, NULL, &up );
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trace_t tr;
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// Search for objects in a sphere (tests for entities that are not solid, yet still useable)
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// Search for objects in a sphere (tests for entities that are not solid, yet still usable)
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Vector searchCenter = EyePosition();
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CUsePushFilter filter;
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@ -2081,4 +2094,3 @@ bool fogparams_t::operator !=( const fogparams_t& other ) const
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return false;
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}
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@ -1065,205 +1065,218 @@ float IntervalDistance( float x, float x0, float x1 )
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return 0;
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}
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float EstimatedDistanceSquared(const Vector &point, const CBaseEntity *pEntity)
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{
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Vector nearestPoint;
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pEntity->CollisionProp()->CalcNearestPoint( point, &nearestPoint );
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return (nearestPoint - point).LengthSqr();
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}
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CBaseEntity *CBasePlayer::FindUseEntity()
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{
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Vector forward, up;
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EyeVectors( &forward, NULL, &up );
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trace_t tr;
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// Search for objects in a sphere (tests for entities that are not solid, yet still useable)
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Vector forward;
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EyeVectors( &forward, NULL, NULL );
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Vector searchCenter = EyePosition();
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// NOTE: Some debris objects are useable too, so hit those as well
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// A button, etc. can be made out of clip brushes, make sure it's +useable via a traceline, too.
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int useableContents = MASK_SOLID | CONTENTS_DEBRIS | CONTENTS_PLAYERCLIP;
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// Some debris objects are +usable, and clip brushes can be made into
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// +usable entities.
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int usableContents = MASK_SOLID | CONTENTS_DEBRIS | CONTENTS_PLAYERCLIP;
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// However, we occasionally need to ignore clip brushes so that objects
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// inside of or beyond them can be +used.
|
||||
const int usableContentsIgnoreClip = usableContents & ~CONTENTS_PLAYERCLIP;
|
||||
|
||||
#ifdef CSTRIKE_DLL
|
||||
useableContents = MASK_NPCSOLID_BRUSHONLY | MASK_OPAQUE_AND_NPCS;
|
||||
usableContents = MASK_NPCSOLID_BRUSHONLY | MASK_OPAQUE_AND_NPCS;
|
||||
#endif
|
||||
|
||||
#ifdef HL1_DLL
|
||||
useableContents = MASK_SOLID;
|
||||
#endif
|
||||
#ifndef CLIENT_DLL
|
||||
CBaseEntity *pFoundByTrace = NULL;
|
||||
usableContents = MASK_SOLID;
|
||||
#endif
|
||||
|
||||
// UNDONE: Might be faster to just fold this range into the sphere query
|
||||
CBaseEntity *pObject = NULL;
|
||||
// First, try to hit an entity directly in front of the player.
|
||||
trace_t directTrace;
|
||||
UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, usableContents, this, COLLISION_GROUP_NONE, &directTrace );
|
||||
|
||||
float nearestDist = FLT_MAX;
|
||||
// try the hit entity if there is one, or the ground entity if there isn't.
|
||||
CBaseEntity *pNearest = NULL;
|
||||
CBaseEntity *pObject = directTrace.m_pEnt;
|
||||
bool bUsable = IsUseableEntity( pObject, 0 );
|
||||
|
||||
const int NUM_TANGENTS = 8;
|
||||
// trace a box at successive angles down
|
||||
// forward, 45 deg, 30 deg, 20 deg, 15 deg, 10 deg, -10, -15
|
||||
const float tangents[NUM_TANGENTS] = { 0, 1, 0.57735026919f, 0.3639702342f, 0.267949192431f, 0.1763269807f, -0.1763269807f, -0.267949192431f };
|
||||
for ( int i = 0; i < NUM_TANGENTS; i++ )
|
||||
if ( !bUsable && (directTrace.contents & CONTENTS_PLAYERCLIP) )
|
||||
{
|
||||
if ( i == 0 )
|
||||
{
|
||||
UTIL_TraceLine( searchCenter, searchCenter + forward * 1024, useableContents, this, COLLISION_GROUP_NONE, &tr );
|
||||
}
|
||||
else
|
||||
{
|
||||
Vector down = forward - tangents[i]*up;
|
||||
VectorNormalize(down);
|
||||
UTIL_TraceHull( searchCenter, searchCenter + down * 72, -Vector(16,16,16), Vector(16,16,16), useableContents, this, COLLISION_GROUP_NONE, &tr );
|
||||
}
|
||||
pObject = tr.m_pEnt;
|
||||
// If we hit a non-usable clip brush, then try tracing again, ignoring
|
||||
// clip brushes, so that object inside of or beyond them can be +used.
|
||||
|
||||
#ifndef CLIENT_DLL
|
||||
pFoundByTrace = pObject;
|
||||
#endif
|
||||
bool bUsable = IsUseableEntity(pObject, 0);
|
||||
while ( pObject && !bUsable && pObject->GetMoveParent() )
|
||||
{
|
||||
pObject = pObject->GetMoveParent();
|
||||
bUsable = IsUseableEntity(pObject, 0);
|
||||
}
|
||||
// NOTE: If a usable clip brush is behind a non-usable clip brush,
|
||||
// then we won't be able to +use it, unfortunately. This is difficult
|
||||
// to workaround. For example, the non-usable clip brush cannot be added
|
||||
// to a list of ignored entities, because it is part of the worldspawn,
|
||||
// and we cannot ignore that.
|
||||
UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, usableContentsIgnoreClip, this, COLLISION_GROUP_NONE, &directTrace );
|
||||
|
||||
if ( bUsable )
|
||||
{
|
||||
Vector delta = tr.endpos - tr.startpos;
|
||||
float centerZ = CollisionProp()->WorldSpaceCenter().z;
|
||||
delta.z = IntervalDistance( tr.endpos.z, centerZ + CollisionProp()->OBBMins().z, centerZ + CollisionProp()->OBBMaxs().z );
|
||||
float dist = delta.Length();
|
||||
if ( dist < PLAYER_USE_RADIUS )
|
||||
{
|
||||
#ifndef CLIENT_DLL
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
NDebugOverlay::Line( searchCenter, tr.endpos, 0, 255, 0, true, 30 );
|
||||
NDebugOverlay::Cross3D( tr.endpos, 16, 0, 255, 0, true, 30 );
|
||||
}
|
||||
|
||||
if ( pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
{
|
||||
// If about to select an NPC, do a more thorough check to ensure
|
||||
// that we're selecting the right one from a group.
|
||||
pObject = DoubleCheckUseNPC( pObject, searchCenter, forward );
|
||||
}
|
||||
#endif
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
Msg( "Trace using: %s\n", pObject ? pObject->GetDebugName() : "no usable entity found" );
|
||||
}
|
||||
|
||||
pNearest = pObject;
|
||||
|
||||
// if this is directly under the cursor just return it now
|
||||
if ( i == 0 )
|
||||
return pObject;
|
||||
}
|
||||
}
|
||||
pObject = directTrace.m_pEnt;
|
||||
bUsable = IsUseableEntity( pObject, 0 );
|
||||
}
|
||||
|
||||
// check ground entity first
|
||||
// if you've got a useable ground entity, then shrink the cone of this search to 45 degrees
|
||||
// otherwise, search out in a 90 degree cone (hemisphere)
|
||||
if ( GetGroundEntity() && IsUseableEntity(GetGroundEntity(), FCAP_USE_ONGROUND) )
|
||||
// If the object is not usable, determine if a move ancestor is.
|
||||
while ( pObject && !bUsable && pObject->GetMoveParent() )
|
||||
{
|
||||
pNearest = GetGroundEntity();
|
||||
pObject = pObject->GetMoveParent();
|
||||
bUsable = IsUseableEntity( pObject, 0 );
|
||||
}
|
||||
if ( pNearest )
|
||||
|
||||
if ( bUsable )
|
||||
{
|
||||
// estimate nearest object by distance from the view vector
|
||||
Vector point;
|
||||
pNearest->CollisionProp()->CalcNearestPoint( searchCenter, &point );
|
||||
nearestDist = CalcDistanceToLine( point, searchCenter, forward );
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
Msg("Trace found %s, dist %.2f\n", pNearest->GetClassname(), nearestDist );
|
||||
}
|
||||
}
|
||||
|
||||
for ( CEntitySphereQuery sphere( searchCenter, PLAYER_USE_RADIUS ); ( pObject = sphere.GetCurrentEntity() ) != NULL; sphere.NextEntity() )
|
||||
{
|
||||
if ( !pObject )
|
||||
continue;
|
||||
|
||||
if ( !IsUseableEntity( pObject, FCAP_USE_IN_RADIUS ) )
|
||||
continue;
|
||||
|
||||
// see if it's more roughly in front of the player than previous guess
|
||||
Vector point;
|
||||
pObject->CollisionProp()->CalcNearestPoint( searchCenter, &point );
|
||||
|
||||
Vector dir = point - searchCenter;
|
||||
VectorNormalize(dir);
|
||||
float dot = DotProduct( dir, forward );
|
||||
|
||||
// Need to be looking at the object more or less
|
||||
if ( dot < 0.8 )
|
||||
continue;
|
||||
|
||||
float dist = CalcDistanceToLine( point, searchCenter, forward );
|
||||
pNearest = pObject;
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
Msg("Radius found %s, dist %.2f\n", pObject->GetClassname(), dist );
|
||||
const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
|
||||
Msg( "Line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Any objects directly in front of us weren't usable and close enough.
|
||||
// Next, determine if the ground entity is usable.
|
||||
float nearestDistSquared = FLT_MAX;
|
||||
|
||||
if ( dist < nearestDist )
|
||||
if ( GetGroundEntity() && IsUseableEntity( GetGroundEntity(), FCAP_USE_ONGROUND ) )
|
||||
{
|
||||
// Since this has purely been a radius search to this point, we now
|
||||
// make sure the object isn't behind glass or a grate.
|
||||
trace_t trCheckOccluded;
|
||||
UTIL_TraceLine( searchCenter, point, useableContents, this, COLLISION_GROUP_NONE, &trCheckOccluded );
|
||||
pNearest = GetGroundEntity();
|
||||
nearestDistSquared = EstimatedDistanceSquared( searchCenter, pNearest );
|
||||
|
||||
if ( trCheckOccluded.fraction == 1.0 || trCheckOccluded.m_pEnt == pObject )
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
pNearest = pObject;
|
||||
nearestDist = dist;
|
||||
Msg( "Ground query found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( nearestDistSquared ) );
|
||||
}
|
||||
}
|
||||
|
||||
// Next, determine which of the reachable and usable objects in the cone
|
||||
// volume directly in front of player is closest, and whether or not any
|
||||
// is closer than the ground entity.
|
||||
for ( CEntitySphereQuery sphere( searchCenter, PLAYER_USE_RADIUS ); ( pObject = sphere.GetCurrentEntity() ) != NULL; sphere.NextEntity() )
|
||||
{
|
||||
if ( !IsUseableEntity( pObject, 0 ) )
|
||||
continue;
|
||||
|
||||
// Determine if the object is nearer than the previous nearest object.
|
||||
Vector nearestPoint;
|
||||
pObject->CollisionProp()->CalcNearestPoint( searchCenter, &nearestPoint );
|
||||
|
||||
Vector dir = nearestPoint - searchCenter;
|
||||
VectorNormalize(dir);
|
||||
|
||||
// Need to be looking at the object more or less.
|
||||
// NOTE: If the closest point on the object happens to be off to the
|
||||
// side, even though the object is predominantly if front of the player,
|
||||
// then it will be rejected, unfortunately.
|
||||
if ( DotProduct( dir, forward ) < 0.8 )
|
||||
continue;
|
||||
|
||||
const float distSquared = (nearestPoint - searchCenter).LengthSqr();
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
Msg( "Cone query found usable entity: %s, distance: %.2f\n", pObject->GetDebugName(), sqrt( distSquared ) );
|
||||
}
|
||||
|
||||
if ( distSquared < nearestDistSquared )
|
||||
{
|
||||
// The object is inside the cone, but it may be blocked by another
|
||||
// object. Verify that we can trace to the object directly.
|
||||
|
||||
// NOTE: this traces to a particular point on the object's collision
|
||||
// prop. If the trace to that point happens to be blocked by another
|
||||
// object, even though other nearby visible points aren't, then we
|
||||
// won't be able to +use the object, unfortunately.
|
||||
|
||||
// We ignore clip brushes here so that objects in or behind clip
|
||||
// brushes can be +used. If the current object itself is a usable
|
||||
// clip brush, this trace will fail to hit it, but unless it is
|
||||
// blocked, the trace fraction will typically be 1.0 anyway, and
|
||||
// pNearest will be set to the usable clip brush object.
|
||||
trace_t tr;
|
||||
UTIL_TraceLine( searchCenter, nearestPoint, usableContentsIgnoreClip, this, COLLISION_GROUP_NONE, &tr );
|
||||
|
||||
if ( tr.fraction == 1.0 || tr.m_pEnt == pObject )
|
||||
{
|
||||
pNearest = pObject;
|
||||
nearestDistSquared = distSquared;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#ifndef CLIENT_DLL
|
||||
if ( !pNearest )
|
||||
{
|
||||
// Haven't found anything near the player to use, nor any NPC's at distance.
|
||||
// Check to see if the player is trying to select an NPC through a rail, fence, or other 'see-though' volume.
|
||||
trace_t trAllies;
|
||||
UTIL_TraceLine( searchCenter, searchCenter + forward * PLAYER_USE_RADIUS, MASK_OPAQUE_AND_NPCS, this, COLLISION_GROUP_NONE, &trAllies );
|
||||
// If we haven't found an object that the player can use yet,
|
||||
// allow a player to use an NPC through 'see-through' volumes
|
||||
// (rails, fenches, windows, grates, etc.).
|
||||
UTIL_TraceLine( searchCenter, searchCenter + PLAYER_USE_RADIUS * forward, MASK_OPAQUE_AND_NPCS, this, COLLISION_GROUP_NONE, &directTrace );
|
||||
pObject = directTrace.m_pEnt;
|
||||
|
||||
if ( trAllies.m_pEnt && IsUseableEntity( trAllies.m_pEnt, 0 ) && trAllies.m_pEnt->MyNPCPointer() && trAllies.m_pEnt->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
if ( pObject && IsUseableEntity( pObject, 0 ) && pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
{
|
||||
// This is an NPC, take it!
|
||||
pNearest = trAllies.m_pEnt;
|
||||
pNearest = pObject;
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
|
||||
Msg( "Line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( pNearest && pNearest->MyNPCPointer() && pNearest->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
if ( pNearest == directTrace.m_pEnt && pNearest && pNearest->MyNPCPointer() && pNearest->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
{
|
||||
pNearest = DoubleCheckUseNPC( pNearest, searchCenter, forward );
|
||||
}
|
||||
// If about to select an NPC with a line trace, do a more thorough
|
||||
// check to ensure that we're selecting the right one from a group.
|
||||
// Lengthen trace slightly to account for the fact that we're
|
||||
// tracing for hitboxes, which are usually farther away than OBBs.
|
||||
trace_t tr;
|
||||
UTIL_TraceLine( searchCenter, searchCenter + 1.1 * PLAYER_USE_RADIUS * forward, MASK_SHOT, this, COLLISION_GROUP_NONE, &tr );
|
||||
pObject = tr.m_pEnt;
|
||||
|
||||
if( pObject != pNearest && pObject && pObject->MyNPCPointer() && pObject->MyNPCPointer()->IsPlayerAlly( this ) )
|
||||
{
|
||||
// Player is selecting a different NPC through some negative space
|
||||
// in the first NPC's hitboxes (between legs, over shoulder, etc).
|
||||
pNearest = tr.m_pEnt;
|
||||
directTrace = tr;
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
const float distSquared = EstimatedDistanceSquared( searchCenter, pNearest );
|
||||
Msg( "Hitbox line trace found usable entity: %s, distance: %.2f\n", pNearest->GetDebugName(), sqrt( distSquared ) );
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
// Draw debug overlays and print debug messages.
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
#ifndef CLIENT_DLL
|
||||
if ( !pNearest )
|
||||
{
|
||||
NDebugOverlay::Line( searchCenter, tr.endpos, 255, 0, 0, true, 30 );
|
||||
NDebugOverlay::Cross3D( tr.endpos, 16, 255, 0, 0, true, 30 );
|
||||
NDebugOverlay::Line( searchCenter, directTrace.endpos, 255, 0, 0, true, 30 );
|
||||
NDebugOverlay::Cross3D( directTrace.endpos, 16, 255, 0, 0, true, 30 );
|
||||
}
|
||||
else if ( pNearest == pFoundByTrace )
|
||||
else if ( pNearest == directTrace.m_pEnt )
|
||||
{
|
||||
NDebugOverlay::Line( searchCenter, tr.endpos, 0, 255, 0, true, 30 );
|
||||
NDebugOverlay::Cross3D( tr.endpos, 16, 0, 255, 0, true, 30 );
|
||||
NDebugOverlay::Line( searchCenter, directTrace.endpos, 0, 255, 0, true, 30 );
|
||||
NDebugOverlay::Cross3D( directTrace.endpos, 16, 0, 255, 0, true, 30 );
|
||||
}
|
||||
else
|
||||
{
|
||||
NDebugOverlay::Box( pNearest->WorldSpaceCenter(), Vector(-8, -8, -8), Vector(8, 8, 8), 0, 255, 0, true, 30 );
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
if ( sv_debug_player_use.GetBool() )
|
||||
{
|
||||
Msg( "Radial using: %s\n", pNearest ? pNearest->GetDebugName() : "no usable entity found" );
|
||||
Msg( "Using: %s\n", pNearest ? pNearest->GetDebugName() : "no usable entity found" );
|
||||
}
|
||||
|
||||
return pNearest;
|
||||
|
|
@ -1298,7 +1311,7 @@ void CBasePlayer::PlayerUse ( void )
|
|||
EyeVectors( &forward, NULL, &up );
|
||||
|
||||
trace_t tr;
|
||||
// Search for objects in a sphere (tests for entities that are not solid, yet still useable)
|
||||
// Search for objects in a sphere (tests for entities that are not solid, yet still usable)
|
||||
Vector searchCenter = EyePosition();
|
||||
|
||||
CUsePushFilter filter;
|
||||
|
|
@ -2081,4 +2094,3 @@ bool fogparams_t::operator !=( const fogparams_t& other ) const
|
|||
|
||||
return false;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue