private List<ZInstruction> ConvertMacros(PassageContent content, ref int currentLink, List<Tuple<string, Assign>> links, string currentPassage)
{
List<ZInstruction> instructions = new List<ZInstruction>();
PassageMacroSet setMacro = content as PassageMacroSet;
PassageMacroBranch branchMacro = content as PassageMacroBranch;
PassageMacroPrint printMacro = content as PassageMacroPrint;
PassageMacroDisplay displayMacro = content as PassageMacroDisplay;
if (setMacro != null)
{
instructions.AddRange(ConvertAssignExpression((Assign)setMacro.Expression, currentPassage));
}
else if (printMacro != null)
{
if (printMacro.Expression is StringValue)
instructions.AddRange(StringToInstructions(((StringValue)(printMacro.Expression)).Value.Replace('\"', ' ').Trim()));
else
{
instructions.AddRange(ConvertValueExpression(printMacro.Expression, currentPassage));
instructions.Add(new PrintNum(new ZStackVariable()));
}
}
else if (displayMacro != null)
{
instructions.AddRange(ConvertPassageContent(_passages.Single(passage =>
passage.Name == ((StringValue)(displayMacro.Expression)).Value.Replace('\"', ' ').Trim()).PassageContentList, ref currentLink, links, currentPassage));
}
else if (branchMacro != null)
{
Guid endIfGuid = Guid.NewGuid();
string endIf = "endIf_" + endIfGuid;
//if
PassageMacroIf ifMacro = (PassageMacroIf)branchMacro.BranchNodeList.First();
Guid ifGuid = Guid.NewGuid();
string ifTrue = "if_True_" + ifGuid;
string ifFalse = "if_False_" + ifGuid;
instructions.AddRange(ConvertBranchExpression(ifMacro.Expression, ifTrue, ifFalse, currentPassage));
// if expression is true
instructions.Add(new Nop() { Label = new ZLabel(ifTrue) });
foreach (var instruction in ConvertPassageContent(ifMacro.PassageContentList, ref currentLink, links, currentPassage))
{
instructions.Add(instruction);
}
instructions.Add(new Jump(new ZJumpLabel(endIf)));
// if expression is false
instructions.Add(new Nop() { Label = new ZLabel(ifFalse) });
//else if
foreach (PassageMacroElseIf elseIfMacro in branchMacro.BranchNodeList.OfType<PassageMacroElseIf>())
{
Guid elseIfGuid = Guid.NewGuid();
string elseIfTrue = "elseIf_True_" + elseIfGuid;
string elseIfFalse = "elseIf_False_" + elseIfGuid;
instructions.AddRange(ConvertBranchExpression(elseIfMacro.Expression, elseIfTrue, elseIfFalse, currentPassage));
// if expression is true
instructions.Add(new Nop() { Label = new ZLabel(elseIfTrue) });
foreach (var instruction in ConvertPassageContent(elseIfMacro.PassageContentList, ref currentLink, links, currentPassage))
{
instructions.Add(instruction);
}
instructions.Add(new Jump(new ZJumpLabel(endIf)));
// if expression is false
instructions.Add(new Nop() { Label = new ZLabel(elseIfFalse) });
}
//else
PassageMacroElse elseMacro = branchMacro.BranchNodeList.Last() as PassageMacroElse;
if (elseMacro != null)
{
foreach (var instruction in ConvertPassageContent(elseMacro.PassageContentList, ref currentLink, links, currentPassage))
{
instructions.Add(instruction);
}
}
//endif
instructions.Add(new Nop() { Label = new ZLabel(endIf) });
}
else
{
throw new NotSupportedException("This macro is not supported yet: " + content.GetType().Name);
}
return instructions;
}
