// A <<jump>> command, which immediately jumps to another node, given
// its name.
public override int VisitJumpToNodeName([NotNull] YarnSpinnerParser.JumpToNodeNameContext context)
{
if (trackingEnabled != null)
{
GenerateTrackingCode(trackingEnabled);
}
compiler.Emit(OpCode.PushString, context.destination, new Operand(context.destination.Text));
compiler.Emit(OpCode.RunNode, context.Start);
return(0);
}
// really ought to make this emit like a list of opcodes actually
public static void GenerateTrackingCode(Compiler compiler, string variableName)
{
// pushing the var and the increment onto the stack
compiler.Emit(OpCode.PushVariable, new Operand(variableName));
compiler.Emit(OpCode.PushFloat, new Operand(1));
// Indicate that we are pushing this many items for comparison
compiler.Emit(OpCode.PushFloat, new Operand(2));
// calling the function
compiler.Emit(OpCode.CallFunc, new Operand("Number.Add"));
// now store the variable and clean up the stack
compiler.Emit(OpCode.StoreVariable, new Operand(variableName));
compiler.Emit(OpCode.Pop);
}
// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// TODO: add support for line conditions:
//
// Mae: here's a line <<if true>>
//
// is identical to
//
// <<if true>>
// Mae: here's a line
// <<endif>>
// Convert the formatted string into a string with
// placeholders, and evaluate the inline expressions and push
// the results onto the stack.
GenerateFormattedText(context.line_formatted_text().children, out var composedString, out var expressionCount);
// Get the lineID for this string from the hashtags if it has one; otherwise, a new one will be created
string lineID = compiler.GetLineID(context.hashtag());
var hashtagText = GetHashtagTexts(context.hashtag());
int lineNumber = context.Start.Line;
string stringID = compiler.RegisterString(
composedString.ToString(),
compiler.CurrentNode.Name,
lineID,
lineNumber,
hashtagText);
compiler.Emit(OpCode.RunLine, new Operand(stringID), new Operand(expressionCount));
return(0);
}
// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// grabbing the line of text and stripping off any "'s if they had them
string lineText = context.text().GetText().Trim('"');
// getting the lineID from the hashtags if it has one
string lineID = compiler.GetLineID(context.hashtag_block());
// technically this only gets the line the statement started on
int lineNumber = context.Start.Line;
string stringID = compiler.RegisterString(lineText, compiler.currentNode.Name, lineID, lineNumber);
compiler.Emit(OpCode.RunLine, new Operand(stringID));
return(0);
}
// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// TODO: add support for line conditions:
//
// Mae: here's a line <<if true>>
//
// is identical to
//
// <<if true>> Mae: here's a line <<endif>>
// Evaluate the inline expressions and push the results onto
// the stack.
var expressionCount = GenerateCodeForExpressionsInFormattedText(context.line_formatted_text().children);
// Get the lineID for this string from the hashtags
string lineID = Compiler.GetLineID(context.hashtag());
if (lineID == null)
{
throw new ParseException("No line ID specified");
}
compiler.Emit(OpCode.RunLine, new Operand(lineID), new Operand(expressionCount));
return(0);
}
