bool HandleBoolEvent(EventContext context, IAsyncEvent <bool> boolEvent, IBranchNode branch) // Return value = whether to return.
{
context.Status = EventContextStatus.Waiting;
int waiting = RaiseAsync(boolEvent, result =>
{
#if DEBUG
Raise(new LogEvent(LogEvent.Level.Info, $"if ({context.Node.Event}) => {result}"));
#endif
context.Node = result ? branch.Next : branch.NextIfFalse;
// If a non-query event needs to set this it will have to do it itself. This is to allow
// things like chest / door events where different combinations of their IAsyncEvent<bool> result
// and the LastEventResult can mean successful opening, exiting the screen without success or a
// trap has been triggered.
if (boolEvent is IQueryEvent)
{
LastEventResult = result;
}
context.Status = EventContextStatus.Ready;
});
if (waiting == 0)
{
ApiUtil.Assert($"Async event {boolEvent} not acknowledged. Continuing immediately.");
context.Node = context.Node.Next;
context.Status = EventContextStatus.Ready;
}
else if (context.Status == EventContextStatus.Waiting)
{
// If the continuation hasn't been called then stop iterating for now and wait for completion.
_threadContexts.Value.Pop();
return(true);
}
// If the continuation was called already then continue iterating.
return(false);
}
public static List <Instruction> CompileBranch(IBranchNode node)
{
var instructions = new List <Instruction>();
var branchAddress = new PrecompiledAdress();
var innerInstructions = new List <Instruction>();
CompileGeneral(node.Block, ref innerInstructions);
innerInstructions.Add(new Instruction {
OpCode = OperationCode.move,
Value = new PrecompiledAdress()
});
branchAddress.Delta = innerInstructions.Count;
CompileGeneral(node.Condition, ref instructions);
instructions.Add(new Instruction {
OpCode = OperationCode.brfalse,
Value = branchAddress
});
instructions = instructions.Concat(innerInstructions).ToList();
return(instructions);
}
public static IContainerNode <T> When <T, TReturn>(this IBranchNode <T, TReturn> branchNode, TReturn value)
{
return(branchNode.When(r => r.Equals(value)));
}
