private void AbilityToTank(Location loc)
{
// modify tileset
Tileset ts;
byte bg1Val;
int key = loc.Room | (loc.Area << 8);
if (roomTilesets.TryGetValue(key, out byte tsNum))
{
ts = new Tileset(rom, tsNum);
bg1Val = ts.AddAbility(loc.NewItem);
ts.Write(tsNum);
}
else
{
// get room header
int headerOffset = rom.ReadPtr(Rom.AreaRoomEntryOffset + loc.Area * 4) + (loc.Room * 0x3C);
tsNum = rom.Read8(headerOffset);
ts = new Tileset(rom, tsNum);
bg1Val = ts.AddAbility(loc.NewItem);
ts.Write(nextTilesetNum);
rom.Write8(headerOffset, nextTilesetNum);
nextTilesetNum++;
}
// write clipdata and BG1
bool hidden = loc.IsHidden;
rom.Write8(loc.ClipdataOffset, loc.NewItem.Clipdata(hidden));
if (!hidden)
{
rom.Write8(loc.BG1Offset, bg1Val);
}
}