//-----------------------------------------------------------------------------
// Purpose: Turns a npc towards its ideal yaw.
// Input : yawSpeed - Yaw speed in degrees per 1/10th of a second.
// flInterval - Time interval to turn, -1 uses time since last think.
// Output : Returns the number of degrees turned.
//-----------------------------------------------------------------------------
void CAI_Motor::UpdateYaw( int yawSpeed )
{
// Don't do this if our yaw is locked
if ( IsYawLocked() )
return;
GetOuter()->SetUpdatedYaw();
float ideal, current, newYaw;
if ( yawSpeed == -1 )
yawSpeed = GetYawSpeed();
// NOTE: GetIdealYaw() will never exactly be reached because UTIL_AngleMod
// also truncates the angle to 16 bits of resolution. So lets truncate it here.
current = UTIL_AngleMod( GetLocalAngles().y );
ideal = UTIL_AngleMod( GetIdealYaw() );
// FIXME: this needs a proper interval
float dt = MIN( 0.2, gpGlobals->curtime - GetLastThink() );
newYaw = AI_ClampYaw( (float)yawSpeed * 10.0, current, ideal, dt );
if (newYaw != current)
{
QAngle angles = GetLocalAngles();
angles.y = newYaw;
SetLocalAngles( angles );
}
}
void CAI_BlendedMotor::UpdateYaw( int speed )
{
// Don't do this is we're locked
if ( IsYawLocked() )
return;
GetOuter()->UpdateTurnGesture( );
BaseClass::UpdateYaw( speed );
}
void CAI_BlendedMotor::RecalculateYawSpeed()
{
// Don't do this is we're locked
if ( IsYawLocked() )
{
SetYawSpeed( 0.0f );
return;
}
if (GetOuter()->HasMemory( bits_MEMORY_TURNING ))
return;
SetYawSpeed( CalcYawSpeed() );
}
float CAI_BlendedMotor::OverrideMaxYawSpeed( Activity activity )
{
// Don't do this is we're locked
if ( IsYawLocked() )
return 0.0f;
switch( activity )
{
case ACT_TURN_LEFT:
case ACT_TURN_RIGHT:
return 45;
break;
default:
if (GetOuter()->IsMoving())
{
return 15;
}
return 45; // too fast?
break;
}
return -1;
}
