public override void Execute()
{
Game g = Game.GetInstance();
int val = rhs.Eval();
g.Debug("Setting " + obj + "." + attr + " to " + val);
g.SetObjectAttr(Node.GetLhsObj(obj), attr, val);
}
public override void Execute()
{
Game g = Game.GetInstance();
if (expr.Eval())
{
g.Debug("condition is true. executing body");
body.Execute();
}
else if (elseNode != null)
{
g.Debug("condition is false. executing else");
elseNode.Execute();
}
}
public static Node ToNode(string rhs)
{
Game g = Game.GetInstance();
rhs = rhs.Trim();
int result;
if (Int32.TryParse(rhs, out result))
{
return(new Constant(result));
}
else if (rhs.ToUpper() == "TRUE")
{
return(new Constant(1));
}
else if (rhs.ToUpper() == "FALSE")
{
return(new Constant(0));
}
else if (rhs.IndexOf('"') == 0)
{
rhs = rhs.Replace("\"", string.Empty);
return(new Constant(g.GetStringId(rhs)));
}
else if (rhs.IndexOf('.') != -1)
{
string left = rhs.Substring(0, rhs.IndexOf('.'));
string right = rhs.Substring(rhs.IndexOf('.') + 1, rhs.Length - rhs.IndexOf('.') - 1);
return(new Attr(left, right));
}
else if (g.GetObjectId(rhs) != -1)
{
return(new Constant(g.GetObjectId(rhs)));
}
else if (g.IsVariable(rhs))
{
return(new GameVar(rhs));
}
else
{
throw new Exception("Don't know what to do with " + rhs);
}
}
public bool Eval()
{
Game g = Game.GetInstance();
g.Debug("Evaluating:" + text);
if (op.opType == Opr.EQ)
{
return(lhs.Eval() == rhs.Eval());
}
if (op.opType == Opr.NEQ)
{
return(lhs.Eval() != rhs.Eval());
}
if (op.opType == Opr.GT)
{
return(lhs.Eval() > rhs.Eval());
}
if (op.opType == Opr.LT)
{
return(lhs.Eval() < rhs.Eval());
}
return(false);
}
public override void Execute()
{
Game g = Game.GetInstance();
g.Move();
}
public override void Execute()
{
Game g = Game.GetInstance();
g.PrintStringCr(msg);
}
public override int Eval()
{
Game g = Game.GetInstance();
return(g.GetObjectAttr(GetLhsObj(lhs), attr.ToUpper()));
}
public override int Eval()
{
Game g = Game.GetInstance();
return(g.GetVarVal(name));
}