Method PickPoint

trinity/Sprite2d/Tr2Sprite2dLineTrace.cpp:205–245

}

ITr2SpriteObject* Tr2Sprite2dLineTrace::PickPoint( float x, float y, Tr2Sprite2dScene* renderer )
{
	if( !m_display )
	{
		return nullptr;
	}

	if( m_pickState == TR2_SPS_ON )
	{
		if( m_renderVertices.size() < 2 )
		{
			return nullptr;
		}

		if( !m_pickingMask || m_pickingMask->SampleMask( renderer->InverseTransformPoint( Vector2( x, y ) ), m_translation, m_displayWidth, m_displayHeight ) )
		{
			Vector2 p( x, y );

			for( auto it = m_drawCalls.begin(); it != m_drawCalls.end(); ++it )
			{
				for( size_t i = 0; i < size_t( it->indexCount / 3 ); ++i )
				{
					auto ix0 = m_renderIndices[i * 3 + it->indexOffset];
					auto ix1 = m_renderIndices[i * 3 + it->indexOffset + 1];
					auto ix2 = m_renderIndices[i * 3 + it->indexOffset + 2];

					auto v0 = m_renderVertices[ix0 + it->vertexOffset];
					auto v1 = m_renderVertices[ix1 + it->vertexOffset];
					auto v2 = m_renderVertices[ix2 + it->vertexOffset];

					if( renderer->IsInsideTriangle( p, *(Vector2*)&v0.position, *(Vector2*)&v1.position, *(Vector2*)&v2.position ) )
					{
						return this;
					}
				}
			}
		}
	}

	return nullptr;
}

float Tr2Sprite2dLineTrace::CalcLength()
{