Method doModifiers

framesenderwindow.cpp:461–516

given an index into the sendingData list we run the modifiers that it has set up The index into the sendingData list

/// </summary>
/// <param name="idx">The index into the sendingData list</param>
void FrameSenderWindow::doModifiers(int idx)
{
    int shadowReg = 0; //shadow register we use to accumulate results
    int first=0, second=0;

    FrameSendData *sendData = &sendingData[idx];
    Modifier *mod;
    ModifierOp op;

    if (sendData->modifiers.count() == 0) return; //if no modifiers just leave right now

    qDebug() << "Executing mods";

    for (int i = 0; i < sendData->modifiers.count(); i++)
    {
        mod = &sendData->modifiers[i];
        for (int j = 0; j < mod->operations.count(); j++)
        {
            op = mod->operations.at(j);
            if (op.first.ID == -1)
            {
                first = shadowReg;
            }
            else first = fetchOperand(idx, op.first);
            second = fetchOperand(idx, op.second);
            switch (op.operation)
            {
            case ADDITION:
                shadowReg = first + second;
                break;
            case AND:
                shadowReg = first & second;
                break;
            case DIVISION:
                shadowReg = first / second;
                break;
            case MULTIPLICATION:
                shadowReg = first * second;
                break;
            case OR:
                shadowReg = first | second;
                break;
            case SUBTRACTION:
                shadowReg = first - second;
                break;
            case XOR:
                shadowReg = first ^ second;
                break;
            case MOD:
                shadowReg = first % second;
            }
        }
        //Finally, drop the result into the proper data byte
        sendData->data[mod->destByte] = (unsigned char) shadowReg;
    }
}

int FrameSenderWindow::fetchOperand(int idx, ModifierOperand op)