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Implement a new event to receive notifications when an pickup alpha has changed.

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This commit is contained in:
Sandu Liviu Catalin
2016-08-19 18:05:29 +03:00
parent ba3f829750
commit cbe33f4f21
6 changed files with 36 additions and 4 deletions
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19
source/Entity/Pickup.cpp
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@ -200,12 +200,27 @@ Int32 CPickup::GetAlpha() const
}
// ------------------------------------------------------------------------------------------------
void CPickup::SetAlpha(Int32 alpha) const
void CPickup::SetAlpha(Int32 alpha)
{
// Validate the managed identifier
Validate();
// Perform the requested operation
// Grab the current value for this property
const Int32 current = _Func->GetPickupAlpha(m_ID);
// Don't even bother if it's the same value
if (current == alpha)
{
return;
}
// Avoid property unwind from a recursive call
_Func->SetPickupAlpha(m_ID, alpha);
// Avoid infinite recursive event loops
if (!(m_CircularLocks & PICKUPCL_EMIT_PICKUP_ALPHA))
{
// Prevent this event from triggering while executed
BitGuardU32 bg(m_CircularLocks, PICKUPCL_EMIT_PICKUP_ALPHA);
// Now forward the event call
Core::Get().EmitPickupAlpha(m_ID, current, alpha);
}
}
// ------------------------------------------------------------------------------------------------