/// <summary>
/// Adds/subtracts a value from all of the pointers in the script that point to an offset after the script.
/// </summary>
/// <param name="delta">The value to add/subtract.</param>
private void UpdatePointersAfterScript()
{
int delta = this.endOffset - this.endInternalOffset;
//
ScriptIterator it = new ScriptIterator(this);
while (!it.IsDone)
{
EventActionCommand eac = it.Next();
int pointer;
if (eac.Opcode == 0x42 || eac.Opcode == 0x67 || eac.Opcode == 0xE9)
{
if (eac.GetType() == typeof(EventCommand) || eac.Opcode == 0xE9)
{
pointer = eac.ReadPointerSpecial(0);
if (pointer >= (this.endInternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointerSpecial(0, (ushort)(pointer + delta));
eac.PointerChanged[0] = true;
}
pointer = eac.ReadPointerSpecial(1);
if (pointer >= (this.endInternalOffset & 0xFFFF) && !eac.PointerChanged[1])
{
eac.WritePointerSpecial(1, (ushort)(pointer + delta));
eac.PointerChanged[1] = true;
}
}
else
{
pointer = eac.ReadPointer();
if (pointer >= (this.endInternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointer((ushort)(pointer + delta));
eac.PointerChanged[0] = true;
}
}
}
else
{
pointer = eac.ReadPointer();
if (pointer >= (this.endInternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointer((ushort)(pointer + delta));
eac.PointerChanged[0] = true;
}
}
}
}
/// <summary>
/// Updates all of the pointers in the script pointing directly to a given command's offset.
/// </summary>
/// <param name="reference">The reference command in the script.</param>
private void UpdatePointersToCommand(EventActionCommand reference)
{
ScriptIterator it = new ScriptIterator(this);
while (!it.IsDone)
{
EventActionCommand eac = it.Next();
int pointer;
if (eac.Opcode == 0x42 || eac.Opcode == 0x67 || eac.Opcode == 0xE9)
{
if (eac.GetType() == typeof(EventCommand) || eac.Opcode == 0xE9)
{
pointer = eac.ReadPointerSpecial(0);
if (pointer == (reference.InternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointerSpecial(0, (ushort)(reference.Offset & 0xFFFF));
eac.PointerChanged[0] = true;
}
pointer = eac.ReadPointerSpecial(1);
if (pointer == (reference.InternalOffset & 0xFFFF) && !eac.PointerChanged[1])
{
eac.WritePointerSpecial(1, (ushort)(reference.Offset & 0xFFFF));
eac.PointerChanged[1] = true;
}
}
else
{
pointer = eac.ReadPointer();
if (pointer == (reference.InternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointer((ushort)(reference.Offset & 0xFFFF));
eac.PointerChanged[0] = true;
}
}
}
else
{
pointer = eac.ReadPointer();
if (pointer == (reference.InternalOffset & 0xFFFF) && !eac.PointerChanged[0])
{
eac.WritePointer((ushort)(reference.Offset & 0xFFFF));
eac.PointerChanged[0] = true;
}
}
}
}
public void Refresh()
{
if (commands == null)
{
return;
}
Assemble();
// refresh offsets
int offset = baseOffset;
foreach (EventCommand esc in commands)
{
esc.RefreshOffsets(offset);
offset += esc.Length;
}
// update internal pointers
EventActionCommand eac;
ScriptIterator it = new ScriptIterator(this);
while (!it.IsDone)
{
eac = it.Next();
eac.PointerChanged = new bool[256];
}
// if undo/redo, pointers update by raw script change
if (!Undoing && State.Instance.AutoPointerUpdate)
{
UpdatePointersAfterScript();
}
it = new ScriptIterator(this);
while (!it.IsDone)
{
eac = it.Next();
if (!Undoing && State.Instance.AutoPointerUpdate)
{
UpdatePointersToCommand(eac);
}
eac.InternalOffset = eac.Offset;
}
}