This is a work in progress where i will put data and explanations on how to edit the tutorial, and where to search.
Any help would be welcomed.
I'm using FEBuilderGBA Event Editor (Adv) to search and edit all of this. So a big thanks to @7743.
Let's start with the most basic data:
Some pointers to table of pointers:
89E85FC -> Most of the tutorial events pointers of Chap0, not all of them. It's splitted in two by a NOP, tutorial events pointers are before this NOP -> after the NOP that's places used to repoint to tutorial events.
Let's picture this
It also appears that tutorial pointers (at least for chapter 0) are 0x89EFXXX-like.
Now let's have a look to this first pointer: 0x89EF2B0
The First Pointer
So what do we have here? Let's have a closer look. As you can see, we have two hex values like this ; 0x91X -> these are Text ID. If you open a Text Editor to these text ID, you may see that's these are dialogues about, well, "how to move".
0x50004 -> This is the coordinates of the flashing cursor appearing to tell you where to move.
The 5 correspond t0 the Y axis. It's starting at 0. So here the cursor is on the 6th tile from the top of the screen. This can't be high than F. That's a one bit instruction. (By the way, the basic GBA screen is like 10 tiles in height and 15 for the width, so that's not a problem, you won't make a cursor that is out of the map.)
So the 4 correspond to the X axis. Startint at 0 and going left to right.
Do you see those two 0x80058? That's for tutorial box. the left 8 and the 5 are coordinates (Y - X as for the cursor) of the top left hand corner tiles of the tutoBox. The right 8 is doing, well i have no idea of what it's doing... Oh wait breaking news:
This second 8 is a kind of "precision" coordinate. It makes you able to move the position of this INSIDE a normal tile size. That's interesting.
Now you can see 3 pointers to events. The first one is a pointer to the next event of this part of the tutorial. It's where the "real" cursor is. Because the cursor we saw at 89EF2B0 is just a decoration, to picture what the tutorial box is telling you.
The second pointer, well it's pointer where we already are. I don't know why, I don't know the routine that's behind this.
And the last pointer is a link to the magic part that made this working properly.
Let's go to the 0x89EF328 pointer.
Pretty similar to the precedent
Well that's the same as before: 0x50004 coordinates of the cursor. Except this time this cursor is not a decoration. It's where you need to click/move. Give it a try, just move coordinates of the precedent cursor and not these ones, you will understand.
The final 0x10A value may be a routine that's waiting for the player to press the A button. Don't edit it.
The 0xFFFB3D20 value should be to edit which value of the menu you need to press (but there's only one which is wait in the original tutorial.)
The following event pointed by 0x89EF388:
Here's a screen
I don't really know what's doing the 0x10B41 value, but the second WORD BIN is the next important event.
In fact this event at 0x89EF398 is happening after 0x89EF060: And both of them are not Tutorial Events.
0x89EF060 is just when Seth gives the rapier to Eirika.
As you may see, here we completed observations of the 4 first pointers of the table.
Let's move to 0x89EF46C:
New pointer, new event, new cursor !"
So thanks to @circleseverywhere we now know that these pointers are for the storage, but not for the logic. But to edit just a bit the tutorial, editing what is stored is enough.
Let's look what we have now. So this is the first part of "how to attack". You know, when it's telling us to put the cursor on Eirika ? Well it's here that it's telling where the cursor needs to be drawn and some dialogues coming with it.
In the "logic" part, they already have a function to point to the lord, so there's no other cursors but the decorative one. This is the 0x50004 value. Still Y - X. There's also the coordinates of the tutorial box.
Well there's nothing new.
I still don't know what's the EVBIT_T is using for, and I don't know too for the valued stored in 0x03000010 thing . But I think that the value stored in 0xD and 0x1 are label ID.
Let's move to the next one: 0x89EF4EC
I have no idea of what's happening there..."
So let's move again...
I won't have many things to say"
I still don't really know what's happening there, but here we are when we need to select Attack and press the A button. How it's working -> the magic logic part obviously