/// <summary>
/// Execute the input as if it were a tiny MooScript verb attached to the player.
/// </summary>
/// <returns>
/// If the MooScript returns a value, it will be sent back to the player.
/// </returns>
public static string ExecuteImmediate(string input, Player player)
{
Verb v = new Verb() {
name = "inline",
help = "",
code = input.Substring(1) + ';'
};
var param = new Verb.VerbParameters() {
input = input,
self = player.world.findObject( player.id ),
dobj = Mob.None,
prep = Verb.Prep.None,
iobj = Mob.None,
player = player,
world = player.world
};
object rv;
using( var ac = new ActorContext( player, player.id ) )
rv = v.invoke( param );
// Try to do some reallly basic type massaging to make it viewable on the terminal.
string rvs;
if (rv is string) {
rvs = "\"{0}\"".FormatI(rv);
} else if (rv is System.Collections.IEnumerable) {
rvs = string.Join(", ", (from object i in (System.Collections.IEnumerable)rv select i.ToStringI()));
} else
rvs = rv.ToStringI();
return MooCode.PrepareForClient(rvs);
}
void pulseCallback()
{
// Make sure we're not already running.
if( Interlocked.Increment( ref _pulseTimerRunning ) > 1 )
{
Interlocked.Decrement( ref _pulseTimerRunning );
Log.Error( "Warning: stacked pulseCallback() calls" );
return;
}
using( new UsingAction(
() =>
{
Interlocked.Decrement( ref _pulseTimerRunning );
}
) )
{
_ticks += PulseFrequency;
IEnumerable<int> toCall = _pulses.Keys.ToArray();
foreach( int id in toCall )
{
try
{
Mob m = _world.findObject( id );
if( m == null )
{
bool junk;
_pulses.TryRemove( id, out junk );
continue;
}
// FIXME: This will never fire if pulsefreq is not a multiple of PulseFrequency.
var freq = m.pulseFreq;
if( freq != 0 && (_ticks % freq) == 0 )
{
var verb = m.pulseVerb;
SourcedItem<Verb> v = m.findVerb( verb );
if( v == null )
continue;
// Make a temporary Player object just to pass down a context.
Player p = new Player( Perm.IsVerbAntistick( v.source, verb ) ? m.ownerId : v.source.ownerId );
var param = new Verb.VerbParameters()
{
args = new object[] { _ticks },
self = m,
world = _world,
player = p
};
v.item.invoke( param );
_world.waitForMerge();
}
}
catch( Exception ex )
{
Log.Error( "Error executing pulse handler for {0}: {1}", id, ex );
// Try to leave a log on the object.
try
{
Mob m = _world.findObject( id );
if( m != null )
m.attrSet( Mob.Attributes.PulseError, ex.ToStringI() );
}
catch( Exception )
{
}
}
}
}
}
/// <summary>
/// Process a line of input from the player: parse and execute any action.
/// </summary>
public static string ProcessInput(string input, Player player)
{
// Ignore empty lines.
if( input.Length == 0 )
return "";
// Does the input start with a special character?
if (input[0] == ';') {
// Execute this as a chunk of MooScript, as if it was attached
// to the player.
return ExecuteImmediate(input, player);
}
if (input[0] == '"')
input = "say " + input.Substring(1);
if (input[0] == ':')
input = "emote " + input.Substring(1);
if (input[0] == '@')
input = "whisper " + input.Substring(1);
// Split the input.
string[] pieces = input.Trim().Split(' ', '\t', '\n', '\r');
if (pieces.Length == 0)
return "";
// For now, the verb is always one word.
string verb = pieces[0];
if (verb.EqualsI("/me") || verb == ":") verb = "emote";
// Start gathering values for the verb call.
var param = new Verb.VerbParameters() {
input = input,
inputwords = pieces,
self = null,
world = player.world,
player = player
};
// Try for a #1._processInput verb first. If one exists and it returns anything
// besides false, we'll let it deal with everything else.
var root = player.world.findObject( 1 );
var playerMob = player.world.findObject( player.id );
Verb rootProcess = root.verbGet("_processInput");
if (rootProcess != null) {
param.self = root;
param.caller = playerMob;
try
{
// This verb doesn't get any special permissions. It's just processing input from the user.
object results;
using( var ac = new ActorContext( player, player.id ) )
results = rootProcess.invoke(param);
if (results == null || (results is bool && (bool)results == false)) {
// Proceed jolly onwards...
} else {
// Our work here is finished.
return "";
}
}
catch( Exception ex )
{
// Just assume it didn't handle it. Sucks to get in a loop here if you
// mess up your global handler..!
Log.Error( "Error while processing _processInput: {0}", ex );
}
param.self = null;
param.caller = null;
}
// Look for complete wildcard verbs on the player and in the player's location.
// If we find one that matches, stop processing anything else.
var selectedVerb = SearchWildcardVerbsFrom(playerMob, verb, param);
if (!selectedVerb.Any())
selectedVerb = SearchWildcardVerbsFrom(playerMob.location, verb, param);
if (selectedVerb.Any()) {
var v = selectedVerb.First();
param.self = v.foundOn;
using( var ac = new ActorContext( player, v.definedOn.ownerId ) )
v.verb.invoke(param);
return "";
}
// Skip forward until we find a preposition.
var remaining = pieces.Skip(1);
var start = remaining;
Verb.PrepMatch p = Verb.PrepMatch.None;
string dobjName = null;
for (int skip=0; skip<remaining.Count(); ++skip) {
var chunk = remaining.Skip(skip);
p = Verb.MatchPrep(chunk);
if (p.isReal) {
// Skip over the preposition after saving its words.
param.prepwords = p.words.ToArray();
remaining = chunk.Skip(param.prepwords.Length);
// What came before it is the direct object.
param.dobjwords = start.Take(skip).ToArray();
dobjName = string.Join(" ", param.dobjwords);
break;
}
}
if (p.prep == Verb.Prep.None) {
// No preposition -> the rest of the string is the direct object.
param.dobjwords = remaining.ToArray();
dobjName = string.Join(" ", param.dobjwords);
remaining = new string[0];
}
// For now, the indirect object is always the rest of the phrase.
string iobjName = null;
if (remaining.Count() > 0) {
param.iobjwords = remaining.ToArray();
iobjName = string.Join(" ", param.iobjwords);
}
// Look for objects around the player that might match the direct and indirect objects.
Mob dobj = ObjectMatch(dobjName, playerMob);
Mob iobj = ObjectMatch(iobjName, playerMob);
// Save the objects we found so we can verb-search.
param.dobj = dobj;
param.prep = p.prep;
param.iobj = iobj;
// Look for a matching verb.
selectedVerb = SearchVerbsFrom(playerMob, verb, param);
if (selectedVerb.Count() == 0)
selectedVerb = SearchVerbsFrom(playerMob.location, verb, param);
if (selectedVerb.Count() == 0 && dobj != null)
selectedVerb = SearchVerbsFrom(dobj, verb, param);
if (selectedVerb.Count() == 0 && iobj != null)
selectedVerb = SearchVerbsFrom(iobj, verb, param);
// Couldn't find one?
if (selectedVerb.Count() != 1) {
// Try for a "_huh" verb on the room the player is in.
SourcedItem<Verb> huh = playerMob.location.findVerb("_huh");
if (huh != null) {
param.self = playerMob.location;
using( var ac = new ActorContext( player, huh.source.id ) )
huh.item.invoke(param);
return "";
}
// Nothin' doin'. Just return a default error.
return "Sorry, I don't know what that means.";
}
// Execute the verb.
var v2 = selectedVerb.First();
param.self = v2.foundOn;
using( var ac = new ActorContext( player, v2.definedOn.ownerId ) )
v2.verb.invoke(param);
// Any output will come from the script.
return "";
}