Method PickPoint

trinity/Sprite2d/Tr2Sprite2dTransform.cpp:44–101

}

ITr2SpriteObject* Tr2Sprite2dTransform::PickPoint( float x, float y, Tr2Sprite2dScene* renderer )
{
	if( !m_display )
	{
		return NULL;
	}
	if( m_pickState == TR2_SPS_OFF )
	{
		return NULL;
	}

	// Check that we're within the bounding box of the transform object itself
	renderer->PushTranslation( m_translation );
	bool isInside = renderer->IsInside( Vector2( x, y ), Vector2( 0.0f, 0.0f ), m_displayWidth, m_displayHeight, 0.0 );
	if( isInside && m_pickingMask )
	{
		isInside = m_pickingMask->SampleMask( renderer->InverseTransformPoint( Vector2( x, y ) ), Vector2( 0.0f, 0.0f ), m_displayWidth, m_displayHeight );
	}
	renderer->PopTranslation();
	if( !isInside )
	{
		return NULL;
	}

	ITr2SpriteObject* obj = NULL;
	renderer->PushTransform( GetTransformationMatrix() );

	for( ITr2SpriteObjectVector::iterator it = m_children.begin(); it != m_children.end(); ++it )
	{
		obj = ( *it )->PickPoint( x, y, renderer );
		if( obj )
		{
			break;
		}
	}

	// If transform itself is pickable and no child was found
	if( m_pickState == TR2_SPS_ON )
	{
		this->m_auxMouseover = NULL;
		if( !obj )
		{
			obj = this;
		}
		else
		{
			if( obj->IsAuxMouseover() )
			{
				// The auxiliary mouseover can add content to the mouseover text or context menu
				this->m_auxMouseover = obj;
				obj = this;
			}
		}
	}
	renderer->PopTransform();

	return obj;
}