/**
* Parses a textual descriptor of the conditions for triggering an event-command binding.
* eventparams{+cond}*
*
* @param eb The results of the parsing are stored here.
* @param desc Descriptor containing event information and possible additional conditions.
*
* @return @c true, if successful; otherwise @c false.
*/
boolean B_ParseEventDescriptor(evbinding_t* eb, const char* desc)
{
AutoStr* str = AutoStr_NewStd();
// The main part, i.e., the first part.
desc = Str_CopyDelim(str, desc, '+');
if(!B_ParseEvent(eb, Str_Text(str)))
{
// Failure parsing the event.
return false;
}
// Any conditions?
while(desc)
{
statecondition_t *cond;
// A new condition.
desc = Str_CopyDelim(str, desc, '+');
cond = B_AllocCommandBindingCondition(eb);
if(!B_ParseStateCondition(cond, Str_Text(str)))
{
// Failure parsing the condition.
return false;
}
}
// Success.
return true;
}
void P_SetYellowMessage(player_t* pl, int flags, const char* msg)
{
#define YELLOW_FMT "{r=1;g=0.7;b=0.3;}"
#define YELLOW_FMT_LEN 18
size_t len;
AutoStr* buf;
if(!msg || !msg[0]) return;
len = strlen(msg);
buf = AutoStr_NewStd();
Str_Reserve(buf, YELLOW_FMT_LEN + len+1);
Str_Set(buf, YELLOW_FMT);
Str_Appendf(buf, "%s", msg);
ST_LogPost(pl - players, flags, Str_Text(buf));
if(pl == &players[CONSOLEPLAYER] && cfg.echoMsg)
Con_FPrintf(CPF_CYAN, "%s\n", msg);
// Servers are responsible for sending these messages to the clients.
/// @todo We shouldn't need to send the format string along with every
/// important game message. Instead flag a bit in the packet and then
/// reconstruct on the other end.
NetSv_SendMessage(pl - players, Str_Text(buf));
#undef YELLOW_FMT
}
AutoStr* Uri_Resolved(Uri const* uri)
{
SELF_CONST(uri);
try
{
return AutoStr_FromTextStd(self->resolved().toUtf8().constData());
}
catch(de::Uri::ResolveError const& er)
{
LOG_RES_WARNING(er.asText());
}
return AutoStr_NewStd();
}
virtual void invoke(int player, EventSequenceArg* args, int numArgs)
{
if(!strchr(Str_Text(&commandTemplate), '%'))
{
DD_Execute(true/*silent*/, Str_Text(&commandTemplate));
return;
}
// Compose the command from the template, inserting values for named arguments.
/// @todo This logic should be extracted and made into an Str method.
AutoStr* cmd = AutoStr_NewStd();
// Reserve an estimate of the composed command length.
Str_Reserve(cmd, Str_Length(&commandTemplate) + numArgs + 1);
int len = Str_Length(&commandTemplate);
const char* start = Str_Text(&commandTemplate);
const char* ch = start, *substart = start;
while(ch + 1 < start + len)
{
if(ch[0] == '%' && ch[1] && ch[1] != '%')
{
Str_PartAppend(cmd, substart, 0, ch - substart);
if(ch[1] == 'p')
{
Str_AppendChar(cmd, '0' + player);
}
else
{
int arg = ch[1] - '0' - 1;
DENG_ASSERT(arg >= 0 && arg < 9);
Str_AppendChar(cmd, char(args[arg]));
}
ch += 2;
substart = ch;
}
else
{
ch++;
}
}
// Add anything remaining.
Str_Append(cmd, substart);
DD_Execute(true/*silent*/, Str_Text(cmd));
}
static Uri *readTextureUrn(Reader *reader, char const *schemeName)
{
DENG_ASSERT(reader && schemeName);
return Uri_NewWithPath2(Str_Text(Str_Appendf(AutoStr_NewStd(), "urn:%s:%i", schemeName, Reader_ReadInt16(svReader))), RC_NULL);
}
AutoStr *AutoStr_FromTextStd(const char *text)
{
return Str_Set(AutoStr_NewStd(), text);
}
/**
* Parse a state condition.
*/
boolean B_ParseStateCondition(statecondition_t* cond, const char* desc)
{
AutoStr* str = AutoStr_NewStd();
ddeventtype_t type;
// First, we expect to encounter a device name.
desc = Str_CopyDelim(str, desc, '-');
if(!Str_CompareIgnoreCase(str, "multiplayer"))
{
// This is only intended for multiplayer games.
cond->type = SCT_STATE;
cond->flags.multiplayer = true;
}
else if(!Str_CompareIgnoreCase(str, "modifier"))
{
cond->device = 0; // not used
cond->type = SCT_MODIFIER_STATE;
// Parse the modifier number.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseModifierId(Str_Text(str), &cond->id))
{
return false;
}
// The final part of a modifier is the state.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseToggleState(Str_Text(str), &cond->state))
{
return false;
}
}
else if(!Str_CompareIgnoreCase(str, "key"))
{
cond->device = IDEV_KEYBOARD;
cond->type = SCT_TOGGLE_STATE;
// Parse the key.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseKeyId(Str_Text(str), &cond->id))
{
return false;
}
// The final part of a key event is the state of the key toggle.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseToggleState(Str_Text(str), &cond->state))
{
return false;
}
}
else if(!Str_CompareIgnoreCase(str, "mouse"))
{
cond->device = IDEV_MOUSE;
// What is being targeted?
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseMouseTypeAndId(Str_Text(str), &type, &cond->id))
{
return false;
}
desc = Str_CopyDelim(str, desc, '-');
if(type == E_TOGGLE)
{
cond->type = SCT_TOGGLE_STATE;
if(!B_ParseToggleState(Str_Text(str), &cond->state))
{
return false;
}
}
else if(type == E_AXIS)
{
cond->type = SCT_AXIS_BEYOND;
if(!B_ParseAxisPosition(Str_Text(str), &cond->state, &cond->pos))
{
return false;
}
}
}
else if(!Str_CompareIgnoreCase(str, "joy"))
{
cond->device = IDEV_JOY1;
// What is being targeted?
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseJoystickTypeAndId(cond->device, Str_Text(str), &type, &cond->id))
{
return false;
}
desc = Str_CopyDelim(str, desc, '-');
if(type == E_TOGGLE)
{
cond->type = SCT_TOGGLE_STATE;
if(!B_ParseToggleState(Str_Text(str), &cond->state))
{
return false;
}
}
else if(type == E_AXIS)
{
cond->type = SCT_AXIS_BEYOND;
if(!B_ParseAxisPosition(Str_Text(str), &cond->state, &cond->pos))
{
return false;
}
}
else // Angle.
{
cond->type = SCT_ANGLE_AT;
if(!B_ParseAnglePosition(Str_Text(str), &cond->pos))
{
return false;
}
}
}
else
{
Con_Message("B_ParseEvent: Device \"%s\" unknown.", Str_Text(str));
return false;
}
// Check for valid toggle states.
if(cond->type == SCT_TOGGLE_STATE &&
cond->state != EBTOG_UP && cond->state != EBTOG_DOWN)
{
Con_Message("B_ParseStateCondition: \"%s\": Toggle condition can only be 'up' or 'down'.",
desc);
return false;
}
// Finally, there may be the negation at the end.
desc = Str_CopyDelim(str, desc, '-');
if(!Str_CompareIgnoreCase(str, "not"))
{
cond->flags.negate = true;
}
// Anything left that wasn't used?
if(desc)
{
Con_Message("B_ParseStateCondition: Unrecognized \"%s\".", desc);
return false;
}
// No errors detected.
return true;
}
/**
* Parse the main part of the event descriptor, with no conditions included.
*/
boolean B_ParseEvent(evbinding_t* eb, const char* desc)
{
AutoStr* str = AutoStr_NewStd();
// First, we expect to encounter a device name.
desc = Str_CopyDelim(str, desc, '-');
if(!Str_CompareIgnoreCase(str, "key"))
{
eb->device = IDEV_KEYBOARD;
// Keyboards only have toggles (as far as we know).
eb->type = E_TOGGLE;
// Parse the key.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseKeyId(Str_Text(str), &eb->id))
{
return false;
}
// The final part of a key event is the state of the key toggle.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseToggleState(Str_Text(str), &eb->state))
{
return false;
}
}
else if(!Str_CompareIgnoreCase(str, "mouse"))
{
eb->device = IDEV_MOUSE;
// Next comes a button or axis name.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseMouseTypeAndId(Str_Text(str), &eb->type, &eb->id))
{
return false;
}
// The last part determines the toggle state or the axis position.
desc = Str_CopyDelim(str, desc, '-');
if(eb->type == E_TOGGLE)
{
if(!B_ParseToggleState(Str_Text(str), &eb->state))
{
return false;
}
}
else // Axis position.
{
if(!B_ParseAxisPosition(Str_Text(str), &eb->state, &eb->pos))
{
return false;
}
}
}
else if(!Str_CompareIgnoreCase(str, "joy"))
{
eb->device = IDEV_JOY1;
// Next part defined button, axis, or hat.
desc = Str_CopyDelim(str, desc, '-');
if(!B_ParseJoystickTypeAndId(eb->device, Str_Text(str), &eb->type, &eb->id))
{
return false;
}
// What is the state of the toggle, axis, or hat?
desc = Str_CopyDelim(str, desc, '-');
if(eb->type == E_TOGGLE)
{
if(!B_ParseToggleState(Str_Text(str), &eb->state))
{
return false;
}
}
else if(eb->type == E_AXIS)
{
if(!B_ParseAxisPosition(Str_Text(str), &eb->state, &eb->pos))
{
return false;
}
}
else // Angle.
{
if(!B_ParseAnglePosition(Str_Text(str), &eb->pos))
{
return false;
}
}
}
else if(!Str_CompareIgnoreCase(str, "sym"))
{
// It must be a symbolic event.
eb->type = E_SYMBOLIC;
eb->device = 0;
eb->symbolicName = strdup(desc);
desc = NULL;
}
else
{
Con_Message("B_ParseEvent: Device \"%s\" unknown.", Str_Text(str));
return false;
}
// Anything left that wasn't used?
if(desc)
{
Con_Message("B_ParseEvent: Unrecognized \"%s\".", desc);
return false;
}
// No errors detected.
return true;
}
