support morphing twin die

[danlangford]

A button Gluttony has a morphing twin die

however the codebase doesn't allow for it

bmai.cpp:708

  // MORPHING shouldn't be paired with TWIN
  BM_ERROR( (m_properties & (BME_PROPERTY_MORPHING|BME_PROPERTY_TWIN)) != (BME_PROPERTY_MORPHING|BME_PROPERTY_TWIN) );

[pappde]

Don't recall the issue - probably it just wasn't clear what the behavior should be. However, most likely an m(1,5) capturing a 6 would become m(6,6). But what happens if an m(1,5) captures a (2,4)?

Depending on that special case, it seems like this shouldn't be hard to support. In BMC_Die::OnApplyAttackPlayer() there is this code:

	if (HasProperty(BME_PROPERTY_MORPHING))
	{
...
		m_sides_max = m_sides[0] = target->GetDie(_move.m_target)->GetSidesMax();
...
	}

In which case it would look like:

   m_sides_max = 0;
   for (int i=0; i<Dice(); i++)  
      m_sides_max += m_sides[i] = target->GetDie(...)

Also, at least one BM_ASSERT and BM_ERROR to remove.

SECONDARY ISSUE
I see a couple of other Morphing combination restrictions (Turbo, Speed) that may need to be allowed.

[jl8e]

IIRC, a morphing twin die doesn't behave any differently from a non-twin morphing die: the morphing die twins and un-twins as needed.

[danlangford]

@jl8e so m(1,5) capturing a 6 would become m(6). m(1,5) captures a (2,4) and becomes m(2,4)

Is that right ?

[jl8e]

yes