TL;DR
- SetMemory(0x6509B0, SetTo, EPD(address to pointer))
: Copy pointer value to 0x6509B0, but divide it by 4 while copying. (You should know how if you're reading this)
- SetDeaths(CurrentPlayer, Anything, YouWant, 0)

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In C, we call variable having address to other values as value 'pointer'.
ex) In SC, 4byte at 0x5993D4 has address to STR section as a value, so we say
- 0x5993D4 is a pointer to STR section.


Here we create simple example that does:

- Create 1 Protoss Zealot
- Set that zealot's shield to 30.
- Repeat these steps for every trigger loop.



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SC manages unit by Doubly Linked List. Wiki
In short, every unit has 'previous unit' and 'next unit'. You can access any unit by following those links.
These links are also pointers, but we won't use them here.


Here's SC's inner workings on making a unit:
1. Pop an element from 'Empty unit list'.
2. Push that to 'Used unit list'.
3. Initialize unit structure.


Here we will hook step 1. Before SC pops unit from empty list, we will get. what unit SC will pop.
We can get those using address 0x628438. 0x628438 is a pointer to the first 'empty' unit. It will be popped.
So we read value there and store it somewhere. Here's simple pseudocode for doing it.




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Create zealot. Fine.

Next we'll update that zealot's shield.
This is what CUnit.h says.



So we need to modify value at (addressToZealot + 0x60) to (30*256)
But addressToZealot is not fixed: They are not constant. We can't just make trigger out of it.
So we use CP trick.


Our goal is to simulate the action:


EPD(addressToZealot) is variable, so we can't just put them right into trigger editor.
We indirectly put them to action using Current Player.





The only non-constant part here is SetMemory(0x6509B0, SetTo, EPD(addressToZealot));

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We implement them by copying addressToZealot to 0x6509B0. Like this




Note that we
- divide P1's marine deaths value by 4 while copying.
- doesn't repair P1's marine deaths value since it's just a temporary value.

So now we have EPD(addressToZealot) in CurrentPlayer. Just add two triggers.