private void UpdateGameState()
{
try {
GameState = ((ScummEngineAccessor)engine).GetScummState();
GameStateChanged?.Invoke();
} catch (IncompleteReadException) { }
}
internal void diff(ScummState state)
{
if (prevState == null)
{
prevState = state;
}
diffInternal(state);
prevState = state;
}
private void diffInternal(ScummState state)
{
for (var varIndex = 0; varIndex < state.ScummVars.Length; ++varIndex)
{
if (IgnoredVars.ContainsKey(varIndex))
{
continue;
}
var newVal = state.ScummVars[varIndex];
var oldVal = prevState.ScummVars[varIndex];
if (newVal == oldVal)
{
continue;
}
DifferenceFound?.Invoke($"scummvar{varIndex}", oldVal, newVal);
}
for (var bitVarByte = 0; bitVarByte < state.bitVarData.Length; bitVarByte++)
{
var newData = state.bitVarData[bitVarByte];
var oldData = prevState.bitVarData[bitVarByte];
if (newData == oldData)
{
continue;
}
//bit juggling to extract the actual changed bitvars
for (var bitIndex = 0; bitIndex < 8; ++bitIndex)
{
int varIndex = bitVarByte * 8 + bitIndex;
if (IgnoredBitVars.ContainsKey(varIndex))
{
continue;
}
bool newBit = (newData & (1 << bitIndex)) != 0;
bool oldBit = (oldData & (1 << bitIndex)) != 0;
if (newBit == oldBit)
{
continue;
}
DifferenceFound?.Invoke($"bitvar{varIndex}", oldBit, newBit);
}
}
}
private static bool Filter(Question <ScummState> question, ScummState state)
{
if (state == null)
{
return(false);
}
if (!question.IsDiscovered(state))
{
return(false);
}
if (question.IsSolved(state))
{
return(false);
}
return(true);
}
private void UpdateHintsList(ScummState state)
{
hintDiffer.RealCollection = question.GetHintNodes(state).ToList();
}
