Method UpdateOrigin

code/cgame/FxPrimitives.cpp:249–356

---------------------------- Update Origin ----------------------------

// Update Origin
//----------------------------
bool CParticle::UpdateOrigin()
{
	vec3_t	new_origin;
//	float	ftime, time2;

	UpdateVelocity();

	// Calc the time differences
//	ftime = theFxHelper.mFrameTime * 0.001f;
	//time2 = ftime * ftime * 0.5f;
//	time2=0;

	// Predict the new position
	new_origin[0] = mOrigin1[0] + theFxHelper.mFloatFrameTime * mVel[0];// + time2 * mVel[0];
	new_origin[1] = mOrigin1[1] + theFxHelper.mFloatFrameTime * mVel[1];// + time2 * mVel[1];
	new_origin[2] = mOrigin1[2] + theFxHelper.mFloatFrameTime * mVel[2];// + time2 * mVel[2];

	// Only perform physics if this object is tagged to do so
	if ( (mFlags & FX_APPLY_PHYSICS) )
	{
		bool solid;

		if ( (mFlags&FX_EXPENSIVE_PHYSICS)
			&& fx_expensivePhysics.integer )
		{
			solid = true; // by setting this to true, we force a real trace to happen
		}
		else
		{
			// if this returns solid, we need to do a trace
			solid = !!(CG_PointContents( new_origin, ENTITYNUM_WORLD ) & ( MASK_SHOT | CONTENTS_WATER ));
		}

		if ( solid )
		{
			trace_t	trace;
			float	dot;

			if ( mFlags & FX_USE_BBOX )
			{
				if (mFlags & FX_GHOUL2_TRACE)
				{
					theFxHelper.G2Trace( &trace, mOrigin1, mMin, mMax, new_origin, ENTITYNUM_NONE, ( MASK_SHOT | CONTENTS_WATER ) );
				}
				else
				{
					theFxHelper.Trace( &trace, mOrigin1, mMin, mMax, new_origin, -1, ( MASK_SHOT | CONTENTS_WATER ) );
				}
			}
			else
			{
				if (mFlags & FX_GHOUL2_TRACE)
				{
					theFxHelper.G2Trace( &trace, mOrigin1, NULL, NULL, new_origin, ENTITYNUM_NONE, ( MASK_SHOT | CONTENTS_WATER ) );
				}
				else
				{
					theFxHelper.Trace( &trace, mOrigin1, NULL, NULL, new_origin, -1, ( MASK_SHOT | CONTENTS_WATER ) );