Posted by FireMario74

I followed the tutorial and the map ended up looping once and it didn't show the entire map on the screen.
...
I tried to line it up and I even tried changing the scaling but no dice. Any ideas? Sorry to be a pain. Thanks!

Posted by FireMario74

I did just that and I was resulted with the exact same issue. I figured out one problem though! I fixed Yoshi moving too fast on the map by changing the Co-ordibate Scale to 1.6.

Posted by FireMario74

I have another question. How do I modify the required stars to open a star door? Thanks!

1. Modify a level so that the only objects in it are Mario and the object whose draw distance you want to edit
2. Open the ROM in no$gba debugger
3. Save a snapshot just before you select/enter your level. This'll save time
4. Place a breakpoint at 020110EC
5. Load your level
6. Your breakpoint will be hit every frame for every object whose address will be in r4. Since there are only two it will be easy to find which is the one you want to edit. If the first four bytes are 0x0210A83C then it's Mario and yours will be the next one.
7. Once you have the address of your object make a note of the first four bytes - it's an address.
8. "Goto" that address. You've got another address - this is the address of the object's constructor. It's within this method that you'll want to place your hook.
9. Pause the emulation and set the following breakpoint "r15=0xXXXXXXXX" where XXXXXXXX is the constructor address. Load the snapshot you took and resume emulation.
10. Step over the code until you see that the (integer) value at offset 0xBC has been modified. You'll need to place your hook at some point after this.
11. Find a safe place to place your hook ie. not on a branch, ldr or cmp instrcution and ensure that the object's address is available in one of the registers.
12. Locate the overlay in which the constructor resides. To do this, create a new ROM and open it in SM64DSe and select "More" > "Decompress Overlays Within Game". Now select "More" > "Dump All Overlays". Next open each overlay in a hex editor and perform a search on the instructions within the constructor, note that you'll need to reverse the order of bytes when entering the search text, repeating until you've found a match (I intend to add a search feature for this).
13. Now you can write your hook in the format of the below example, replacing XXXXXXXX with the address at which the hook is to be placed, YY with the hexadecimal representation of the overlay ID in which XXXXXXXX is found, 0xZZZZZZZZ with the draw distance and W with the register containing the object's address:
    
    void hook_XXXXXXXX_ov_YY()
    {
    asm
    (
    "mov r1, #0xZZZZZZZZ \t\n"
    "str r1, [rW, #0xBC] \t\n"
    );
    }
    
14. Use NSMBe editor to compile and insert your patch.