public IRail CheckForSwitch(char posSwitch, char posAbove, char posBelow)
{
_currSwitch++;
if (posSwitch.Equals((char)Symbols.SwitchDown) || posSwitch.Equals((char)Symbols.SwitchUp))
{
if (posAbove.Equals((char)Symbols.CornerRailB) && posBelow.Equals((char)Symbols.CornerRailA))
{
SwitchConversion c = new SwitchConversion(Symbols.SwitchDown);
_mainModel.AddSwitch(_currSwitch, c);
return(c);
}
else if (posAbove.Equals((char)Symbols.CornerRailA) && posBelow.Equals((char)Symbols.CornerRailB))
{
SwitchDiversion c = new SwitchDiversion(Symbols.SwitchDown);
_mainModel.AddSwitch(_currSwitch, c);
return(c);
}
}
return(null);
}
