private void Awake()
{
if (instance != null && instance != this)
{
Debug.LogWarning("PickingManager instance already set. Are there multiple instances in the scene?");
Destroy(this);
return;
}
instance = this;
}
public Pickable GetPickableAt(Vector2 screenPosition)
{
if (!cpuData.IsCreated)
{
return(null);
}
int scaledX = (int)screenPosition.x / scaleDivisor;
int scaledY = (int)screenPosition.y / scaleDivisor;
Color32 packedId = cpuData[scaledX + dataWidth * scaledY];
int id = PickingManager.DecodeId(packedId);
return(PickingManager.GetPickable(id));
}
private void OnDestroy()
{
entries.Clear();
foreach (Material material in materials.Values)
{
Destroy(material);
}
materials.Clear();
if (instance == this)
{
instance = null;
}
}
private void OnEnable()
{
// Picking manager may not be instantiated, in which case we can't do anything useful, so stop.
if (!PickingManager.Add(this))
{
return;
}
if (renderers == null)
{
return;
}
if (properties == null)
{
properties = new MaterialPropertyBlock();
}
int id = PickingManager.GetPickableId(this);
Color32 packedId = PickingManager.EncodeId(id);
foreach (Renderer r in renderers)
{
properties.Clear();
// Keep existing changed properties.
if (r.HasPropertyBlock())
{
r.GetPropertyBlock(properties);
}
properties.SetColor(pickableIdPropertyId, packedId);
r.SetPropertyBlock(properties);
r.sharedMaterial = PickingManager.GetPickableMaterial(r.sharedMaterial);
}
}
private void OnDisable()
{
PickingManager.Remove(this);
}
