public void BackSpace(NitroFile bca, uint addr, uint len, ref BCAOffsetData offs, bool forAlignment = false)
{
bca.AddSpace(addr, (uint)-len);
uint oldRotOffset = offs.rotOffset;
uint oldPosOffset = offs.posOffset;
uint oldAnimOffset = offs.animOffset;
if (addr <= offs.scaleOffset)
{
offs.scaleOffset -= len;
}
if (addr <= offs.rotOffset)
{
offs.rotOffset -= len;
}
if (addr <= offs.posOffset)
{
offs.posOffset -= len;
}
if (addr <= offs.animOffset)
{
offs.animOffset -= len;
}
bca.Write32(0x08, offs.scaleOffset);
bca.Write32(0x0c, offs.rotOffset);
bca.Write32(0x10, offs.posOffset);
bca.Write32(0x14, offs.animOffset);
if (forAlignment)
{
return;
}
uint trTypeIndex;
if (addr > offs.scaleOffset && addr <= oldRotOffset)
{
trTypeIndex = 0;
}
else if (addr > offs.rotOffset && addr <= oldPosOffset)
{
trTypeIndex = 1;
}
else if (addr > offs.posOffset && addr <= oldAnimOffset)
{
trTypeIndex = 2;
}
else
{
return;
}
uint dataOffset, unitSize;
offs.GetDataOffsetAndSize(trTypeIndex, out dataOffset, out unitSize);
uint startSubAt = (addr - dataOffset) / unitSize;
uint valToSub = len / unitSize;
uint numBones = bca.Read16(0x00);
for (uint i = 0; i < numBones; ++i)
{
for (uint j = 0; j < 3; ++j)
{
uint offset = offs.animOffset + 0x24 * i + 4 * (3 * trTypeIndex + j) + 2;
uint temp = bca.Read16(offset);
if (temp >= startSubAt)
{
bca.Write16(offset, (ushort)(temp - valToSub));
}
}
}
}