Shandalar - Program Bugs

[Korath]

The third of those should be Ivory Cup, I assume.

[Korath]

(This affects anything that charges mana during a trigger.)

The current behavior is intentional, as the lesser of evils. The idea behind is to avoid situations like this one:

1. You have an Iron Star, a Mountain, a Scorched Ruins (T: Add 4 to your mana pool), and a Llanowar Elves on the battlefield, and a Mons's Goblin Raiders in your hand.
2. You double-click the Mon's Goblin Raiders to cast it. The Mountain is autotapped for R to pay for it.
3. The Iron Star is optionally triggerable. You single-click on it to activate it.
4. The Scorched Ruins is autotapped instead of the Llanowar Elves, since lands always get autotapped before creatures.

The underlying bug is that double-clicking to autotap wasn't originally cleared by triggers. So, in order to avoid the above behavior, we clear it whenever mana is charged during resolution of a trigger.

Ideally, double-clicking should be cleared while prompting for which card to trigger (whether that's manual, as it always will be for Iron Star and the other lucky charms, or autoamtic, if there's only a single, non-optional card triggering). So you'd double-click the goblin to cast it and autotap the Mountain; then could either double-click the Iron Star to autotap 1 for it, or single-click it to be prompted how to pay for the 1. (You'd still always have to pay manually for a non-optional trigger that forces you to pay mana if it were the only card triggering; but that's a very, very unusual situation.)

Clearing the double-click flag that early in trigger handling isn't currently possible, though; too much of how triggers actually work isn't clearly understood.

Is this the same problem that Manalink3.0 implementation has and probably shandalar also has with cards which force have - All creatures have "At the beginning of your upkeep, destroy this creature unless you pay 1." - like the The Tabernacle at Pendrell Vale that you can't autotap the trigger and have to pay manually for each creature.
Consequently also no longer works the "multi auto tap" I don't remember exactly how but with some kind of multi-auto-tap you could pay for all creatures that triggered if you had enough mana for all of them which was very convenient and fast but I guess it was causing a lot of problems handling triggers and was removed.

[Korath]

Yes, it's the same issue. All evidence is that that "multi-autotap" you speak of was never intentional behavior.