I'm working on a SC Terrain related project, and I figured I'd jot these notes down in the forum. Sorry if it's old news to everybody, I'm just getting back into the game:
When you copy terrain squares in SCMDraft, the clipboard data looks like the following for one tile selected:
52 52 45 54 00 00 00 00 01 00 01 00 B0 4D
The first 32 bits of the above hex is just SCMDraft related and I'm not exactly sure what it represents (in ascii it is RRET).
The next 32 bytes seem to always be 00 00 00 00. Maybe I'm not doing anything special enough to cause those bits to change.
The next 32 bytes are descriptions of the size. 01 00 01 00 is a 1x1 square, 02 00 02 00 is a 2x2 square.
Every 16 bytes after that are terrain values.
Now what is interesting is that SCMDraft let's you use the shift button to copy some weird shapes. Here I am copying a 2x2 and a 1x1 block:
Here is the hex for that copy:
52 52 45 54 00 00 00 00 | 03 00 02 00 11 4E 12 4E | FF FF 21 4E 22 4E 23 4E
So the first 2 sets of 32 bits don't change.
The next set of 32 bits describe that we have a 3x2 block. And then each set of 16 bytes describe each tile, going across the rows. The FF FF is a special tile to SCMDraft that means NOT A BLOCK or something similar.
The reason I am looking into this is I'm trying to find a better way to share terrain rather than just sharing huge, unsearchable maps.
"RRET" (or "TERR") is probably just's SCMD's way of specifying "This is a block of terrain".
FFFF would just mean "use existing tile" or "none"
Based on your question in the shoutbox, are you trying to figure out how to get the tileset tile from these 16-bit values in SCMDraft? The high 3-nibbles (0xFFF0 >> 4) specify the *.cv5 group index, and the low nibble (0x000F) specifies which one of the 16 tiles from that group.
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"RRET" (or "TERR") is probably just's SCMD's way of specifying "This is a block of terrain".
FFFF would just mean "use existing tile" or "none"
Yeah, these are no big deal to work with. I didn't even think about the endian-ness of the hex.
Based on your question in the shoutbox, are you trying to figure out how to get the tileset tile from these 16-bit values in SCMDraft? The high 3-nibbles (0xFFF0 >> 4) specify the *.cv5 group index, and the low nibble (0x000F) specifies which one of the 16 tiles from that group.
Ok, that clears that up, I was going to ask about that next in the shoutbox, thanks!
Just to clear it up, I'm getting the raw clipboard data from SCMDraft so that I can generate a picture from it.
