public void AddSpace(uint offset, uint amount)
{
// move the data
byte[] block = m_File.ReadBlock(offset, (uint)(m_File.m_Data.Length - offset));
m_File.WriteBlock(offset + amount, block);
// write zeroes in the newly created space
for (int i = 0; i < amount; i++)
{
m_File.Write8((uint)(offset + i), 0);
}
// update the pointers
for (int i = 0; i < m_PointerList.Count; i++)
{
PointerReference ptrref = m_PointerList[i];
if (ptrref.m_ReferenceAddr >= offset)
{
ptrref.m_ReferenceAddr += amount;
}
if (ptrref.m_PointerAddr >= offset)
{
ptrref.m_PointerAddr += amount;
m_File.Write32(ptrref.m_ReferenceAddr, ptrref.m_PointerAddr);
}
m_PointerList[i] = ptrref;
}
foreach (NitroTexture tex in m_Textures.Values)
{
if (tex.m_EntryOffset >= offset)
{
tex.m_EntryOffset += amount;
}
if (tex.m_PalEntryOffset >= offset)
{
tex.m_PalEntryOffset += amount;
}
if (tex.m_PalOffset >= offset)
{
tex.m_PalOffset += amount;
}
}
}
public void RemoveSpace(uint offset, uint amount)
{
// move the data
byte[] block = m_File.ReadBlock(offset + amount, (uint)(m_File.m_Data.Length - offset - amount));
m_File.WriteBlock(offset, block);
Array.Resize(ref m_File.m_Data, (int)(m_File.m_Data.Length - amount));
// update the pointers
for (int i = 0; i < m_PointerList.Count; i++)
{
PointerReference ptrref = m_PointerList[i];
if (ptrref.m_ReferenceAddr >= (offset + amount))
{
ptrref.m_ReferenceAddr -= amount;
}
if (ptrref.m_PointerAddr >= (offset + amount))
{
ptrref.m_PointerAddr -= amount;
m_File.Write32(ptrref.m_ReferenceAddr, ptrref.m_PointerAddr);
}
m_PointerList[i] = ptrref;
}
foreach (NitroTexture tex in m_Textures.Values)
{
if (tex.m_EntryOffset >= (offset + amount))
{
tex.m_EntryOffset -= amount;
}
if (tex.m_PalEntryOffset >= (offset + amount))
{
tex.m_PalEntryOffset -= amount;
}
if (tex.m_PalOffset >= (offset + amount))
{
tex.m_PalOffset -= amount;
}
}
}
