Transformation ability and Engine Upgrade

[archimonde92]

Currently I am working on an transformation ability that transformation an unit into another unit with stronger ability via Engine Upgrade. It work fine when I transform it, but when it untransformation. The learned ability all gone.
Example:
Unit A - hero ability = Storm Bolt, Blink, Roboglobin; unit ability = inventory.

Unit B (level1) - hero ability = Storm Bolt (level 1), Blink (level 1), Roboglobin; unit ability = inventory, engine upgrade (level 1).

Unit B (level2) - hero ability = Storm Bolt (level 2), Blink (level 2), Roboglobin; unit ability = inventory, engine upgrade (level 2).

Unit B (level3) - hero ability = Storm Bolt (level 3), Blink (level 3), Roboglobin; unit ability = inventory, engine upgrade (level 3).

Unit A cast Robogoblin, he become Unit B (level 3), His storm bolt and blink were upgraded by the engine upgrade to storm bolt (level 3) and blink (level 3). But when he Unrobogoblin, every ability he got will unlearned.
I try add Unengine Upgrade (level 1), Unengine Upgrade (level 2), and Unengine Upgrade (level 3) into a spellbook to the Unit A but the result much worst, his ability will not get upgrade when he Robogoblin.

Someone help me please?

 

[Kino]

Why do you even need to use Engineer Upgrade?

Simply give the transformed unit the improved abilities.

 

[archimonde92]

^ Is that possible, even hero ability?
I don't want to relearn all the spell once you cast it.

 

[defskull]

Advanced Tab -> Gameplay Constants -> "Morphed Unit Keeps Abilities"
I don't know the real word, I'm at office

 

[Kino]

^ Is that possible, even hero ability?
I don't want to relearn all the spell once you cast it.

Why not?
Just relearn everything via tigger

 

[defskull]

Kino's suggestion can be used, but first, you must save the current level of the previous ability into an Integer variable, later then, load that saved variable and use the "Set Level Ability" action

 

[archimonde92]

Kino's suggestion can be used, but first, you must save the current level of the previous ability into an Integer variable, later then, load that saved variable and use the "Set Level Ability" action

But this bugged me. If the hero die while in another form, he will revive with no ability.

 

[defskull]

There is one Custom script, I don't know if this is the correct Custom script:

• Custom script: MakeUnitAbilityPermanent

Something like that