private void txtModifier_TextChanged(object sender, EventArgs e)
{
if (lstPatches.SelectedNode != null && lstPatches.SelectedNode.Tag != null && lstPatches.SelectedNode.Tag is DiffPatch && cmbModifiers.SelectedIndex >= 0)
{
DiffInput input = ((DiffPatch)lstPatches.SelectedNode.Tag).Inputs[cmbModifiers.SelectedIndex];
if (input.Type == ChangeType.Color)
{
return;
}
bool ok = DiffInput.CheckInput(txtModifier.Text, input);
if (ok)
{
input.Value = txtModifier.Text;
}
if (!ok)
{
picModifier.Image = imgListModifier.Images["red.png"];
}
else
{
picModifier.Image = imgListModifier.Images["green.png"];
}
}
}
private int ApplyPatch(DiffPatch patch, ref byte[] buf)
{
int changed = 0;
if (!patch.Apply)
{
return(-1);
}
foreach (DiffInput i in patch.Inputs)
{
if (!DiffInput.CheckInput(i.Value, i))
{
return(-2);
}
}
foreach (DiffChange c in patch.Changes)
{
switch (c.Type)
{
case ChangeType.Byte:
{
byte old = buf[c.Offset];
if (old == (byte)c.Old)
{
buf[c.Offset] = (byte)c.GetNewValue(patch);
changed++;
}
else
{
MessageBox.Show(String.Format("Data mismatch at 0x{0:X} (0x{1:X} != 0x{2:X})!", c.Offset, old, (byte)c.Old));
}
break;
}
case ChangeType.Word:
{
UInt16 old = BitConverter.ToUInt16(buf, (int)c.Offset);
if (old == (UInt16)c.Old)
{
UInt16 val = (UInt16)c.GetNewValue(patch);
buf[c.Offset] = (byte)val;
buf[c.Offset + 1] = (byte)(val >> 8);
changed += 2;
}
else
{
MessageBox.Show(String.Format("Data mismatch at 0x{0:X} (0x{1:X} != 0x{2:X})!", c.Offset, old, (ushort)c.Old));
}
break;
}
case ChangeType.Dword:
{
UInt32 old = BitConverter.ToUInt32(buf, (int)c.Offset);
if (old == (UInt32)c.Old)
{
WriteDword(ref buf, (UInt32)c.GetNewValue(patch), c.Offset);
changed += 4;
}
else
{
MessageBox.Show(String.Format("Data mismatch at 0x{0:X} (0x{1:X} != 0x{2:X})!", c.Offset, old, (uint)c.Old));
}
break;
}
case ChangeType.String: // used only for displayable string
{
//currently not checking for old string - if client crashes your screwed
byte[] val = Encoding.ASCII.GetBytes((String)c.GetNewValue(patch) + "\x00");
int i = 0;
foreach (byte b in val)
{
buf[c.Offset + i++] = b;
}
changed += i;
break;
}
}
}
//MessageBox.Show("Applied patch '" + patch.Name + "' (" + changed + " bytes)");
return(changed);
}
