public void PickObject(int x, int y)
{
if (m_simulationModel == null)
{
return;
}
m_pickRay = PickRay.Pick(x, y, m_camera, m_control.Size, ProjectionMatrix);
NeuronModel neuron = FindFirstNeuron(m_pickRay, m_simulationModel.Regions);
if (neuron != null)
{
ToggleNeuron(neuron);
}
}
private NeuronModel FindFirstNeuron(PickRay pickRay, IEnumerable <RegionModel> regions)
{
float closestDistance = float.MaxValue;
NeuronModel closestNeuron = null;
foreach (RegionModel region in regions)
{
foreach (NeuronModel neuron in region.Neurons)
{
float distance = neuron.DistanceToRayOrigin(pickRay);
if (distance < closestDistance)
{
closestNeuron = neuron;
closestDistance = distance;
}
}
}
return(closestNeuron);
}