First version of the SOurce SDK 2013

1 files changed, 335 insertions, 0 deletions

diff --git a/mp/src/game/shared/obstacle_pushaway.cpp b/mp/src/game/shared/obstacle_pushaway.cpp
new file mode 100644
index 00000000..043c1773
--- /dev/null
+++ b/mp/src/game/shared/obstacle_pushaway.cpp
@@ -0,0 +1,335 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//

+//

+// Purpose: 

+//

+//=============================================================================//

+

+#include "cbase.h"

+#include "obstacle_pushaway.h"

+#include "props_shared.h"

+

+#if defined( CSTRIKE_DLL )

+#define SV_PUSH_CONVAR_FLAGS  (FCVAR_REPLICATED)

+#else

+#define SV_PUSH_CONVAR_FLAGS  (FCVAR_REPLICATED | FCVAR_DEVELOPMENTONLY)

+#endif // CSTRIKE_DLL

+

+//-----------------------------------------------------------------------------------------------------

+ConVar sv_pushaway_force( "sv_pushaway_force", "30000", SV_PUSH_CONVAR_FLAGS, "How hard physics objects are pushed away from the players on the server." );

+ConVar sv_pushaway_min_player_speed( "sv_pushaway_min_player_speed", "75", SV_PUSH_CONVAR_FLAGS, "If a player is moving slower than this, don't push away physics objects (enables ducking behind things)." );

+ConVar sv_pushaway_max_force( "sv_pushaway_max_force", "1000", SV_PUSH_CONVAR_FLAGS, "Maximum amount of force applied to physics objects by players." );

+ConVar sv_pushaway_clientside( "sv_pushaway_clientside", "0", SV_PUSH_CONVAR_FLAGS, "Clientside physics push away (0=off, 1=only localplayer, 1=all players)" );

+

+ConVar sv_pushaway_player_force( "sv_pushaway_player_force", "200000", SV_PUSH_CONVAR_FLAGS | FCVAR_CHEAT, "How hard the player is pushed away from physics objects (falls off with inverse square of distance)." );

+ConVar sv_pushaway_max_player_force( "sv_pushaway_max_player_force", "10000", SV_PUSH_CONVAR_FLAGS | FCVAR_CHEAT, "Maximum of how hard the player is pushed away from physics objects." );

+

+#ifdef CLIENT_DLL

+ConVar sv_turbophysics( "sv_turbophysics", "0", FCVAR_REPLICATED, "Turns on turbo physics" );

+#else

+extern ConVar sv_turbophysics;

+#endif

+

+//-----------------------------------------------------------------------------------------------------

+bool IsPushAwayEntity( CBaseEntity *pEnt )

+{

+	if ( pEnt == NULL )

+		return false;

+

+	if ( pEnt->GetCollisionGroup() != COLLISION_GROUP_PUSHAWAY )

+	{

+		// Try backing away from doors that are currently rotating, to prevent blocking them

+#ifndef CLIENT_DLL

+		if ( FClassnameIs( pEnt, "func_door_rotating" ) )

+		{

+			CBaseDoor *door = dynamic_cast<CBaseDoor *>(pEnt);

+			if ( !door )

+			{

+				return false;

+			}

+

+			if ( door->m_toggle_state != TS_GOING_UP && door->m_toggle_state != TS_GOING_DOWN )

+			{

+				return false;

+			}

+		}

+		else if ( FClassnameIs( pEnt, "prop_door_rotating" ) )

+		{

+			CBasePropDoor *door = dynamic_cast<CBasePropDoor *>(pEnt);

+			if ( !door )

+			{

+				return false;

+			}

+

+			if ( !door->IsDoorOpening() && !door->IsDoorClosing() )

+			{

+				return false;

+			}

+		}

+		else

+#endif // !CLIENT_DLL

+		{

+			return false;

+		}

+	}

+

+	return true;

+}

+

+//-----------------------------------------------------------------------------------------------------

+bool IsPushableEntity( CBaseEntity *pEnt )

+{

+	if ( pEnt == NULL )

+		return false;

+

+	if ( sv_turbophysics.GetBool() )

+	{

+		if ( pEnt->GetCollisionGroup() == COLLISION_GROUP_NONE )

+		{

+#ifdef CLIENT_DLL

+			if ( FClassnameIs( pEnt, "class CPhysicsPropMultiplayer" ) )

+#else

+			if ( FClassnameIs( pEnt, "prop_physics_multiplayer" ) )

+#endif // CLIENT_DLL

+			{

+				return true;

+			}

+		}

+	}

+

+	return false;

+}

+

+//-----------------------------------------------------------------------------------------------------

+#ifndef CLIENT_DLL

+bool IsBreakableEntity( CBaseEntity *pEnt )

+{

+	if ( pEnt == NULL )

+		return false;

+

+	// If we won't be able to break it, don't try

+	if ( pEnt->m_takedamage != DAMAGE_YES )

+		return false;

+

+	if ( pEnt->GetCollisionGroup() != COLLISION_GROUP_PUSHAWAY && pEnt->GetCollisionGroup() != COLLISION_GROUP_BREAKABLE_GLASS && pEnt->GetCollisionGroup() != COLLISION_GROUP_NONE )

+		return false;

+

+	if ( pEnt->m_iHealth > 200 )

+		return false;

+

+	IMultiplayerPhysics *pPhysicsInterface = dynamic_cast< IMultiplayerPhysics * >( pEnt );

+	if ( pPhysicsInterface )

+	{

+		if ( pPhysicsInterface->GetMultiplayerPhysicsMode() != PHYSICS_MULTIPLAYER_SOLID )

+			return false;

+	}

+	else

+	{

+		if ((FClassnameIs( pEnt, "func_breakable" ) || FClassnameIs( pEnt, "func_breakable_surf" )))

+		{

+			if (FClassnameIs( pEnt, "func_breakable_surf" ))

+			{

+				// don't try to break it if it has already been broken

+				CBreakableSurface *surf = static_cast< CBreakableSurface * >( pEnt );

+

+				if ( surf->m_bIsBroken )

+					return false;

+			}

+		}

+		else if ( pEnt->PhysicsSolidMaskForEntity() & CONTENTS_PLAYERCLIP )

+		{

+			// hostages and players use CONTENTS_PLAYERCLIP, so we can use it to ignore them

+			return false;

+		}

+	}

+

+	IBreakableWithPropData *pBreakableInterface = dynamic_cast< IBreakableWithPropData * >( pEnt );

+	if ( pBreakableInterface )

+	{

+		// Bullets don't damage it - ignore

+		if ( pBreakableInterface->GetDmgModBullet() <= 0.0f )

+		{

+			return false;

+		}

+	}

+

+	CBreakableProp *pProp = dynamic_cast< CBreakableProp * >( pEnt );

+	if ( pProp )

+	{

+		// It takes a large amount of damage to even scratch it - ignore

+		if ( pProp->m_iMinHealthDmg >= 50 )

+		{

+			return false;

+		}

+	}

+

+	return true;

+}

+#endif // !CLIENT_DLL

+

+//-----------------------------------------------------------------------------------------------------

+int GetPushawayEnts( CBaseCombatCharacter *pPushingEntity, CBaseEntity **ents, int nMaxEnts, float flPlayerExpand, int PartitionMask, CPushAwayEnumerator *enumerator )

+{

+	

+	Vector vExpand( flPlayerExpand, flPlayerExpand, flPlayerExpand );

+

+	Ray_t ray;

+	ray.Init( pPushingEntity->GetAbsOrigin(), pPushingEntity->GetAbsOrigin(), pPushingEntity->GetCollideable()->OBBMins() - vExpand, pPushingEntity->GetCollideable()->OBBMaxs() + vExpand );

+

+	CPushAwayEnumerator *physPropEnum = NULL;

+	if  ( !enumerator )

+	{

+		physPropEnum = new CPushAwayEnumerator( ents, nMaxEnts );

+		enumerator = physPropEnum;

+	}

+

+	partition->EnumerateElementsAlongRay( PartitionMask, ray, false, enumerator );

+

+	int numHit = enumerator->m_nAlreadyHit;

+

+	if ( physPropEnum )

+		delete physPropEnum;

+

+	return numHit;

+}

+

+void AvoidPushawayProps( CBaseCombatCharacter *pPlayer, CUserCmd *pCmd )

+{

+	// Figure out what direction we're moving and the extents of the box we're going to sweep 

+	// against physics objects.

+	Vector currentdir;

+	Vector rightdir;

+	AngleVectors( pCmd->viewangles, &currentdir, &rightdir, NULL );

+

+	CBaseEntity *props[512];

+#ifdef CLIENT_DLL

+	int nEnts = GetPushawayEnts( pPlayer, props, ARRAYSIZE( props ), 0.0f, PARTITION_CLIENT_SOLID_EDICTS, NULL );

+#else

+	int nEnts = GetPushawayEnts( pPlayer, props, ARRAYSIZE( props ), 0.0f, PARTITION_ENGINE_SOLID_EDICTS, NULL );

+#endif

+

+	const Vector & ourCenter = pPlayer->WorldSpaceCenter();

+	Vector nearestPropPoint;

+	Vector nearestPlayerPoint;

+

+	for ( int i=0; i < nEnts; i++ )

+	{

+		// Don't respond to this entity on the client unless it has PHYSICS_MULTIPLAYER_FULL set.

+		IMultiplayerPhysics *pInterface = dynamic_cast<IMultiplayerPhysics*>( props[i] );

+		if ( pInterface && pInterface->GetMultiplayerPhysicsMode() != PHYSICS_MULTIPLAYER_SOLID )

+			continue;

+

+		const float minMass = 10.0f; // minimum mass that can push a player back

+		const float maxMass = 30.0f; // cap at a decently large value

+		float mass = maxMass;

+		if ( pInterface )

+		{

+			mass = pInterface->GetMass();

+		}

+		mass = clamp( mass, minMass, maxMass );

+		

+		mass = MAX( mass, 0 );

+		mass /= maxMass; // bring into a 0..1 range

+

+		// Push away from the collision point. The closer our center is to the collision point,

+		// the harder we push away.

+		props[i]->CollisionProp()->CalcNearestPoint( ourCenter, &nearestPropPoint );

+		pPlayer->CollisionProp()->CalcNearestPoint( nearestPropPoint, &nearestPlayerPoint );

+		Vector vPushAway = (nearestPlayerPoint - nearestPropPoint);

+		float flDist = VectorNormalize( vPushAway );

+

+		const float MaxPushawayDistance = 5.0f;

+		if ( flDist > MaxPushawayDistance && !pPlayer->CollisionProp()->IsPointInBounds( nearestPropPoint ) )

+		{

+			continue;

+		}

+

+		// If we're not pushing, try from our center to the nearest edge of the prop

+		if ( vPushAway.IsZero() )

+		{

+			vPushAway = (ourCenter - nearestPropPoint);

+			flDist = VectorNormalize( vPushAway );

+		}

+

+		// If we're still not pushing, try from our center to the center of the prop

+		if ( vPushAway.IsZero() )

+		{

+			vPushAway = (ourCenter - props[i]->WorldSpaceCenter());

+			flDist = VectorNormalize( vPushAway );

+		}

+

+		flDist = MAX( flDist, 1 );

+

+		float flForce = sv_pushaway_player_force.GetFloat() / flDist * mass;

+		flForce = MIN( flForce, sv_pushaway_max_player_force.GetFloat() );

+

+#ifndef CLIENT_DLL

+		pPlayer->PushawayTouch( props[i] );

+

+		// We can get right up next to rotating doors before they start to move, so scale back our force so we don't go flying

+		if ( FClassnameIs( props[i], "func_door_rotating" ) || FClassnameIs( props[i], "prop_door_rotating" ) )

+#endif

+		{

+			flForce *= 0.25f;

+		}

+

+		vPushAway *= flForce;

+

+		pCmd->forwardmove += vPushAway.Dot( currentdir );

+		pCmd->sidemove    += vPushAway.Dot( rightdir );

+	}

+}

+

+//-----------------------------------------------------------------------------------------------------

+void PerformObstaclePushaway( CBaseCombatCharacter *pPushingEntity )

+{

+	if (  pPushingEntity->m_lifeState != LIFE_ALIVE )

+		return;

+

+	// Give a push to any barrels that we're touching.

+	// The client handles adjusting our usercmd to push us away.

+	CBaseEntity *props[256];

+

+#ifdef CLIENT_DLL

+	// if sv_pushaway_clientside is disabled, clientside phys objects don't bounce away

+	if ( sv_pushaway_clientside.GetInt() == 0 )

+		return;

+

+	// if sv_pushaway_clientside is 1, only local player can push them

+	CBasePlayer *pPlayer = pPushingEntity->IsPlayer() ? (dynamic_cast< CBasePlayer * >(pPushingEntity)) : NULL;

+	if ( (sv_pushaway_clientside.GetInt() == 1) && (!pPlayer || !pPlayer->IsLocalPlayer()) )

+		return;

+

+	int nEnts = GetPushawayEnts( pPushingEntity, props, ARRAYSIZE( props ), 3.0f, PARTITION_CLIENT_RESPONSIVE_EDICTS, NULL );

+#else

+	int nEnts = GetPushawayEnts( pPushingEntity, props, ARRAYSIZE( props ), 3.0f, PARTITION_ENGINE_SOLID_EDICTS, NULL );

+#endif

+	

+	for ( int i=0; i < nEnts; i++ )

+	{

+		// If this entity uas PHYSICS_MULTIPLAYER_FULL set (ie: it's not just debris), and we're moving too slow, don't push it away.

+		// Instead, let the client bounce off it. This allows players to get close to and duck behind things without knocking them over.

+		IMultiplayerPhysics *pInterface = dynamic_cast<IMultiplayerPhysics*>( props[i] );

+

+		if ( pInterface && pInterface->GetMultiplayerPhysicsMode() == PHYSICS_MULTIPLAYER_SOLID )

+		{

+			if ( pPushingEntity->GetAbsVelocity().Length2D() < sv_pushaway_min_player_speed.GetFloat() )

+				continue;

+		}

+

+		IPhysicsObject *pObj = props[i]->VPhysicsGetObject();

+

+		if ( pObj )

+		{		

+			Vector vPushAway = (props[i]->WorldSpaceCenter() - pPushingEntity->WorldSpaceCenter());

+			vPushAway.z = 0;

+			

+			float flDist = VectorNormalize( vPushAway );

+			flDist = MAX( flDist, 1 );

+			

+			float flForce = sv_pushaway_force.GetFloat() / flDist;

+			flForce = MIN( flForce, sv_pushaway_max_force.GetFloat() );

+

+			pObj->ApplyForceOffset( vPushAway * flForce, pPushingEntity->WorldSpaceCenter() );

+		}

+	}

+}