mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 06:36:54 +00:00
563 lines
16 KiB
C++
563 lines
16 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose: Used to fire events based on the orientation of a given entity.
|
|
//
|
|
// Looks at its target's angles every frame and fires an output if its
|
|
// target's forward vector points at a specified lookat entity for more
|
|
// than a specified length of time.
|
|
//
|
|
// It also fires an output whenever the target's angles change.
|
|
//
|
|
//=============================================================================//
|
|
|
|
#include "cbase.h"
|
|
#include "entityinput.h"
|
|
#include "entityoutput.h"
|
|
#include "eventqueue.h"
|
|
#include "mathlib/mathlib.h"
|
|
|
|
// memdbgon must be the last include file in a .cpp file!!!
|
|
#include "tier0/memdbgon.h"
|
|
|
|
#define SF_USE_TARGET_FACING (1<<0) // Use the target entity's direction instead of position
|
|
|
|
class CPointAngleSensor : public CPointEntity
|
|
{
|
|
DECLARE_CLASS(CPointAngleSensor, CPointEntity);
|
|
public:
|
|
|
|
bool KeyValue(const char *szKeyName, const char *szValue);
|
|
void Activate(void);
|
|
void Spawn(void);
|
|
void Think(void);
|
|
|
|
int DrawDebugTextOverlays(void);
|
|
|
|
protected:
|
|
|
|
void Enable();
|
|
void Disable();
|
|
|
|
// Input handlers
|
|
void InputEnable(inputdata_t &inputdata);
|
|
void InputDisable(inputdata_t &inputdata);
|
|
void InputToggle(inputdata_t &inputdata);
|
|
void InputTest(inputdata_t &inputdata);
|
|
void InputSetTargetEntity(inputdata_t &inputdata);
|
|
|
|
bool IsFacingWithinTolerance(CBaseEntity *pEntity, CBaseEntity *pTarget, float flTolerance, float *pflDot = NULL);
|
|
|
|
bool m_bDisabled; // When disabled, we do not think or fire outputs.
|
|
string_t m_nLookAtName; // Name of the entity that the target must point at to fire the OnTrue output.
|
|
|
|
EHANDLE m_hTargetEntity; // Entity whose angles are being monitored.
|
|
EHANDLE m_hLookAtEntity; // Entity that the target must look at to fire the OnTrue output.
|
|
|
|
float m_flDuration; // Time in seconds for which the entity must point at the target.
|
|
float m_flDotTolerance; // Degrees of error allowed to satisfy the condition, expressed as a dot product.
|
|
float m_flFacingTime; // The time at which the target entity pointed at the lookat entity.
|
|
bool m_bFired; // Latches the output so it only fires once per true.
|
|
|
|
// Outputs
|
|
COutputEvent m_OnFacingLookat; // Fired when the target points at the lookat entity.
|
|
COutputEvent m_OnNotFacingLookat; // Fired in response to a Test input if the target is not looking at the lookat entity.
|
|
COutputVector m_TargetDir;
|
|
COutputFloat m_FacingPercentage; // Normalize value representing how close the entity is to facing directly at the target
|
|
|
|
DECLARE_DATADESC();
|
|
};
|
|
|
|
LINK_ENTITY_TO_CLASS(point_anglesensor, CPointAngleSensor);
|
|
|
|
|
|
BEGIN_DATADESC(CPointAngleSensor)
|
|
|
|
// Keys
|
|
DEFINE_KEYFIELD(m_bDisabled, FIELD_BOOLEAN, "StartDisabled"),
|
|
DEFINE_KEYFIELD(m_nLookAtName, FIELD_STRING, "lookatname"),
|
|
DEFINE_FIELD(m_hTargetEntity, FIELD_EHANDLE),
|
|
DEFINE_FIELD(m_hLookAtEntity, FIELD_EHANDLE),
|
|
DEFINE_KEYFIELD(m_flDuration, FIELD_FLOAT, "duration"),
|
|
DEFINE_FIELD(m_flDotTolerance, FIELD_FLOAT),
|
|
DEFINE_FIELD(m_flFacingTime, FIELD_TIME),
|
|
DEFINE_FIELD(m_bFired, FIELD_BOOLEAN),
|
|
|
|
// Outputs
|
|
DEFINE_OUTPUT(m_OnFacingLookat, "OnFacingLookat"),
|
|
DEFINE_OUTPUT(m_OnNotFacingLookat, "OnNotFacingLookat"),
|
|
DEFINE_OUTPUT(m_TargetDir, "TargetDir"),
|
|
DEFINE_OUTPUT(m_FacingPercentage, "FacingPercentage"),
|
|
|
|
// Inputs
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Enable", InputEnable),
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Disable", InputDisable),
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Toggle", InputToggle),
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Test", InputTest),
|
|
DEFINE_INPUTFUNC(FIELD_STRING, "SetTargetEntity", InputSetTargetEntity),
|
|
|
|
END_DATADESC()
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Handles keyvalues that require special processing.
|
|
// Output : Returns true if handled, false if not.
|
|
//-----------------------------------------------------------------------------
|
|
bool CPointAngleSensor::KeyValue(const char *szKeyName, const char *szValue)
|
|
{
|
|
if (FStrEq(szKeyName, "tolerance"))
|
|
{
|
|
float flTolerance = atof(szValue);
|
|
m_flDotTolerance = cos(DEG2RAD(flTolerance));
|
|
}
|
|
else
|
|
{
|
|
return(BaseClass::KeyValue(szKeyName, szValue));
|
|
}
|
|
|
|
return(true);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called when spawning after parsing keyvalues.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::Spawn(void)
|
|
{
|
|
BaseClass::Spawn();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called after all entities have spawned on new map or savegame load.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::Activate(void)
|
|
{
|
|
BaseClass::Activate();
|
|
|
|
if (!m_hTargetEntity)
|
|
{
|
|
m_hTargetEntity = gEntList.FindEntityByName( NULL, m_target );
|
|
}
|
|
|
|
if (!m_hLookAtEntity && (m_nLookAtName != NULL_STRING))
|
|
{
|
|
m_hLookAtEntity = gEntList.FindEntityByName( NULL, m_nLookAtName );
|
|
if (!m_hLookAtEntity)
|
|
{
|
|
DevMsg(1, "Angle sensor '%s' could not find look at entity '%s'.\n", GetDebugName(), STRING(m_nLookAtName));
|
|
}
|
|
}
|
|
|
|
// It's okay to not have a look at entity, it just means we measure and output the angles
|
|
// of the target entity without testing them against the look at entity.
|
|
if (!m_bDisabled && m_hTargetEntity)
|
|
{
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Determines if one entity is facing within a given tolerance of another
|
|
// Input : pEntity -
|
|
// pTarget -
|
|
// flTolerance -
|
|
// Output : Returns true on success, false on failure.
|
|
//-----------------------------------------------------------------------------
|
|
bool CPointAngleSensor::IsFacingWithinTolerance(CBaseEntity *pEntity, CBaseEntity *pTarget, float flTolerance, float *pflDot)
|
|
{
|
|
if (pflDot)
|
|
{
|
|
*pflDot = 0;
|
|
}
|
|
|
|
if ((pEntity == NULL) || (pTarget == NULL))
|
|
{
|
|
return(false);
|
|
}
|
|
|
|
Vector forward;
|
|
pEntity->GetVectors(&forward, NULL, NULL);
|
|
|
|
Vector dir;
|
|
// Use either our position relative to the target, or the target's raw facing
|
|
if ( HasSpawnFlags( SF_USE_TARGET_FACING ) )
|
|
{
|
|
pTarget->GetVectors(&dir, NULL, NULL);
|
|
}
|
|
else
|
|
{
|
|
dir = pTarget->GetAbsOrigin() - pEntity->GetAbsOrigin();
|
|
VectorNormalize(dir);
|
|
}
|
|
|
|
//
|
|
// Larger dot product corresponds to a smaller angle.
|
|
//
|
|
float flDot = dir.Dot(forward);
|
|
if (pflDot)
|
|
{
|
|
*pflDot = flDot;
|
|
}
|
|
|
|
if (flDot >= m_flDotTolerance)
|
|
{
|
|
return(true);
|
|
}
|
|
|
|
return(false);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called every frame.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::Think(void)
|
|
{
|
|
if (m_hTargetEntity != NULL)
|
|
{
|
|
Vector forward;
|
|
m_hTargetEntity->GetVectors(&forward, NULL, NULL);
|
|
m_TargetDir.Set(forward, this, this);
|
|
|
|
if (m_hLookAtEntity != NULL)
|
|
{
|
|
//
|
|
// Check to see if the measure entity's forward vector has been within
|
|
// given tolerance of the target entity for the given period of time.
|
|
//
|
|
float flDot;
|
|
if (IsFacingWithinTolerance(m_hTargetEntity, m_hLookAtEntity, m_flDotTolerance, &flDot ))
|
|
{
|
|
if (!m_bFired)
|
|
{
|
|
if (!m_flFacingTime)
|
|
{
|
|
m_flFacingTime = gpGlobals->curtime;
|
|
}
|
|
|
|
if (gpGlobals->curtime >= m_flFacingTime + m_flDuration)
|
|
{
|
|
m_OnFacingLookat.FireOutput(this, this);
|
|
m_bFired = true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Reset the fired state
|
|
if ( m_bFired )
|
|
{
|
|
m_bFired = false;
|
|
}
|
|
|
|
// Always reset the time when we've lost our facing
|
|
m_flFacingTime = 0;
|
|
}
|
|
|
|
// Output the angle range we're in
|
|
float flPerc = RemapValClamped( flDot, 1.0f, m_flDotTolerance, 1.0f, 0.0f );
|
|
m_FacingPercentage.Set( flPerc, this, this );
|
|
}
|
|
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Input handler for forcing an instantaneous test of the condition.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::InputTest(inputdata_t &inputdata)
|
|
{
|
|
if (IsFacingWithinTolerance(m_hTargetEntity, m_hLookAtEntity, m_flDotTolerance))
|
|
{
|
|
m_OnFacingLookat.FireOutput(inputdata.pActivator, this);
|
|
}
|
|
else
|
|
{
|
|
m_OnNotFacingLookat.FireOutput(inputdata.pActivator, this);
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::InputSetTargetEntity(inputdata_t &inputdata)
|
|
{
|
|
if ((inputdata.value.String() == NULL) || (inputdata.value.StringID() == NULL_STRING) || (inputdata.value.String()[0] == '\0'))
|
|
{
|
|
m_target = NULL_STRING;
|
|
m_hTargetEntity = NULL;
|
|
SetNextThink( TICK_NEVER_THINK );
|
|
}
|
|
else
|
|
{
|
|
m_target = AllocPooledString(inputdata.value.String());
|
|
m_hTargetEntity = gEntList.FindEntityByName( NULL, m_target, NULL, inputdata.pActivator, inputdata.pCaller );
|
|
if (!m_bDisabled && m_hTargetEntity)
|
|
{
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::InputEnable(inputdata_t &inputdata)
|
|
{
|
|
Enable();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::InputDisable(inputdata_t &inputdata)
|
|
{
|
|
Disable();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: I like separators between my functions.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::InputToggle(inputdata_t &inputdata)
|
|
{
|
|
if (m_bDisabled)
|
|
{
|
|
Enable();
|
|
}
|
|
else
|
|
{
|
|
Disable();
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::Enable()
|
|
{
|
|
m_bDisabled = false;
|
|
if (m_hTargetEntity)
|
|
{
|
|
SetNextThink(gpGlobals->curtime);
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointAngleSensor::Disable()
|
|
{
|
|
m_bDisabled = true;
|
|
SetNextThink(TICK_NEVER_THINK);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
int CPointAngleSensor::DrawDebugTextOverlays(void)
|
|
{
|
|
int nOffset = BaseClass::DrawDebugTextOverlays();
|
|
|
|
if (m_debugOverlays & OVERLAY_TEXT_BIT)
|
|
{
|
|
float flDot;
|
|
bool bFacing = IsFacingWithinTolerance(m_hTargetEntity, m_hLookAtEntity, m_flDotTolerance, &flDot);
|
|
|
|
char tempstr[512];
|
|
Q_snprintf(tempstr, sizeof(tempstr), "delta ang (dot) : %.2f (%f)", RAD2DEG(acos(flDot)), flDot);
|
|
EntityText( nOffset, tempstr, 0);
|
|
nOffset++;
|
|
|
|
Q_snprintf(tempstr, sizeof(tempstr), "tolerance ang (dot): %.2f (%f)", RAD2DEG(acos(m_flDotTolerance)), m_flDotTolerance);
|
|
EntityText( nOffset, tempstr, 0);
|
|
nOffset++;
|
|
|
|
Q_snprintf(tempstr, sizeof(tempstr), "facing: %s", bFacing ? "yes" : "no");
|
|
EntityText( nOffset, tempstr, 0);
|
|
nOffset++;
|
|
}
|
|
|
|
return nOffset;
|
|
}
|
|
|
|
// ====================================================================
|
|
// Proximity sensor
|
|
// ====================================================================
|
|
|
|
#define SF_PROXIMITY_TEST_AGAINST_AXIS (1<<0)
|
|
|
|
class CPointProximitySensor : public CPointEntity
|
|
{
|
|
DECLARE_CLASS( CPointProximitySensor, CPointEntity );
|
|
|
|
public:
|
|
|
|
virtual void Activate( void );
|
|
|
|
protected:
|
|
|
|
void Think( void );
|
|
void Enable( void );
|
|
void Disable( void );
|
|
|
|
// Input handlers
|
|
void InputEnable(inputdata_t &inputdata);
|
|
void InputDisable(inputdata_t &inputdata);
|
|
void InputToggle(inputdata_t &inputdata);
|
|
void InputSetTargetEntity(inputdata_t &inputdata);
|
|
|
|
private:
|
|
|
|
bool m_bDisabled; // When disabled, we do not think or fire outputs.
|
|
EHANDLE m_hTargetEntity; // Entity whose angles are being monitored.
|
|
|
|
COutputFloat m_Distance;
|
|
|
|
DECLARE_DATADESC();
|
|
};
|
|
|
|
LINK_ENTITY_TO_CLASS( point_proximity_sensor, CPointProximitySensor );
|
|
|
|
BEGIN_DATADESC( CPointProximitySensor )
|
|
|
|
// Keys
|
|
DEFINE_KEYFIELD( m_bDisabled, FIELD_BOOLEAN, "StartDisabled" ),
|
|
DEFINE_FIELD( m_hTargetEntity, FIELD_EHANDLE ),
|
|
|
|
// Outputs
|
|
DEFINE_OUTPUT( m_Distance, "Distance"),
|
|
|
|
// Inputs
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Enable", InputEnable),
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Disable", InputDisable),
|
|
DEFINE_INPUTFUNC(FIELD_VOID, "Toggle", InputToggle),
|
|
DEFINE_INPUTFUNC(FIELD_STRING, "SetTargetEntity", InputSetTargetEntity),
|
|
|
|
END_DATADESC()
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called after all entities have spawned on new map or savegame load.
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::Activate( void )
|
|
{
|
|
BaseClass::Activate();
|
|
|
|
if ( m_hTargetEntity == NULL )
|
|
{
|
|
m_hTargetEntity = gEntList.FindEntityByName( NULL, m_target );
|
|
}
|
|
|
|
if ( m_bDisabled == false && m_hTargetEntity != NULL )
|
|
{
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::InputSetTargetEntity(inputdata_t &inputdata)
|
|
{
|
|
if ((inputdata.value.String() == NULL) || (inputdata.value.StringID() == NULL_STRING) || (inputdata.value.String()[0] == '\0'))
|
|
{
|
|
m_target = NULL_STRING;
|
|
m_hTargetEntity = NULL;
|
|
SetNextThink( TICK_NEVER_THINK );
|
|
}
|
|
else
|
|
{
|
|
m_target = AllocPooledString(inputdata.value.String());
|
|
m_hTargetEntity = gEntList.FindEntityByName( NULL, m_target, NULL, inputdata.pActivator, inputdata.pCaller );
|
|
if (!m_bDisabled && m_hTargetEntity)
|
|
{
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::InputEnable( inputdata_t &inputdata )
|
|
{
|
|
Enable();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::InputDisable( inputdata_t &inputdata )
|
|
{
|
|
Disable();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::InputToggle( inputdata_t &inputdata )
|
|
{
|
|
if ( m_bDisabled )
|
|
{
|
|
Enable();
|
|
}
|
|
else
|
|
{
|
|
Disable();
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::Enable( void )
|
|
{
|
|
m_bDisabled = false;
|
|
if ( m_hTargetEntity )
|
|
{
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose:
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::Disable( void )
|
|
{
|
|
m_bDisabled = true;
|
|
SetNextThink( TICK_NEVER_THINK );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Called every frame
|
|
//-----------------------------------------------------------------------------
|
|
void CPointProximitySensor::Think( void )
|
|
{
|
|
if ( m_hTargetEntity != NULL )
|
|
{
|
|
Vector vecTestDir = ( m_hTargetEntity->GetAbsOrigin() - GetAbsOrigin() );
|
|
float flDist = VectorNormalize( vecTestDir );
|
|
|
|
// If we're only interested in the distance along a vector, modify the length the accomodate that
|
|
if ( HasSpawnFlags( SF_PROXIMITY_TEST_AGAINST_AXIS ) )
|
|
{
|
|
Vector vecDir;
|
|
GetVectors( &vecDir, NULL, NULL );
|
|
|
|
float flDot = DotProduct( vecTestDir, vecDir );
|
|
flDist *= fabs( flDot );
|
|
}
|
|
|
|
m_Distance.Set( flDist, this, this );
|
|
SetNextThink( gpGlobals->curtime );
|
|
}
|
|
}
|