/**
* @brief Reads from a buffer according to format; version without syntactic sugar for variable arguments, to call it from other functions with variable arguments
* @sa SV_ReadFormat
* @param[in] buf The buffer we read the data from
* @param[in] format The format string may not be nullptr
* @param ap The variadic function argument list corresponding to the format string
*/
void NET_vReadFormat (dbuffer* buf, const char* format, va_list ap)
{
while (*format) {
const char typeID = *format++;
switch (typeID) {
case 'c':
*va_arg(ap, int*) = NET_ReadChar(buf);
break;
case 'b':
*va_arg(ap, int*) = NET_ReadByte(buf);
break;
case 's':
*va_arg(ap, int*) = NET_ReadShort(buf);
break;
case 'l':
*va_arg(ap, int*) = NET_ReadLong(buf);
break;
case 'p':
NET_ReadPos(buf, *va_arg(ap, vec3_t*));
break;
case 'g':
NET_ReadGPos(buf, *va_arg(ap, pos3_t*));
break;
case 'd':
NET_ReadDir(buf, *va_arg(ap, vec3_t*));
break;
case 'a':
*va_arg(ap, float*) = NET_ReadAngle(buf);
break;
case '!':
format++;
break;
case '&': {
char* str = va_arg(ap, char*);
const size_t length = va_arg(ap, size_t);
NET_ReadString(buf, str, length);
break;
}
case '*':
{
const int n = NET_ReadShort(buf);
*va_arg(ap, int*) = n;
byte* p = va_arg(ap, byte*);
for (int i = 0; i < n; i++)
*p++ = NET_ReadByte(buf);
}
break;
default:
Com_Error(ERR_DROP, "ReadFormat: Unknown type!");
}
}
/* Too many arguments for the given format; too few cause crash above */
#ifdef PARANOID
if (!ap)
Com_Error(ERR_DROP, "ReadFormat: Too many arguments!");
#endif
}
/**
* @brief Moves actor.
* @param[in] self Pointer to the event structure that is currently executed
* @param[in] msg The netchannel message
* @sa LET_PathMove
* @note EV_ACTOR_MOVE
*/
void CL_ActorDoMove (const eventRegister_t* self, dbuffer* msg)
{
const int number = NET_ReadShort(msg);
/* get le */
le_t* le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
if (!LE_IsActor(le))
Com_Error(ERR_DROP, "Can't move, LE doesn't exist or is not an actor (entnum: %i, type: %i)\n",
number, le->type);
if (LE_IsDead(le))
Com_Error(ERR_DROP, "Can't move, actor on team %i dead (entnum: %i)", le->team, number);
/* lock this le for other events, the corresponding unlock is in LE_DoEndPathMove() */
LE_Lock(le);
if (le->isMoving()) {
if (le->pathLength == le->pathPos) {
LE_DoEndPathMove(le);
} else {
Com_Error(ERR_DROP, "Actor (entnum: %i) on team %i is still moving (%i steps left). Times: %i, %i, %i",
le->entnum, le->team, le->pathLength - le->pathPos, le->startTime, le->endTime, cl.time);
}
}
int i = 0;
/* the end of this event is marked with a 0 */
while (NET_PeekLong(msg) != 0) {
NET_ReadByte(msg);
le->dvtab[i] = NET_ReadShort(msg); /** Don't adjust dv values here- the whole thing is needed to move the actor! */
le->speed[i] = NET_ReadShort(msg);
le->pathContents[i] = NET_ReadShort(msg);
i++;
}
le->pathLength = i;
if (le->pathLength > MAX_ROUTE)
Com_Error(ERR_DROP, "Overflow in pathLength (entnum: %i)", number);
/* skip the end of move marker */
NET_ReadLong(msg);
/* Also get the final position */
NET_ReadGPos(msg, le->newPos);
if (VectorCompare(le->newPos, le->pos))
Com_Error(ERR_DROP, "start and end pos are the same (entnum: %i)", number);
/* activate PathMove function */
le->resetFloor();
if (LE_IsInvisible(le))
/* Hack: this relies on the visibility events interrupting the EV_ACTOR_MOVE event */
LE_SetThink(le, LET_HiddenMove);
else
LE_SetThink(le, LET_StartPathMove);
le->pathPos = 0;
le->startTime = cl.time;
le->endTime = cl.time;
}
void NET_SkipFormat (dbuffer* buf, const char* format)
{
while (*format) {
const char typeID = *format++;
switch (typeID) {
case 'c':
NET_ReadChar(buf);
break;
case 'b':
NET_ReadByte(buf);
break;
case 's':
NET_ReadShort(buf);
break;
case 'l':
NET_ReadLong(buf);
break;
case 'p': {
vec3_t v;
NET_ReadPos(buf, v);
break;
}
case 'g': {
pos3_t p;
NET_ReadGPos(buf, p);
break;
}
case 'd': {
vec3_t v;
NET_ReadDir(buf, v);
break;
}
case 'a':
NET_ReadAngle(buf);
break;
case '!':
format++;
break;
case '&':
NET_ReadString(buf, nullptr, 0);
break;
case '*': {
const int n = NET_ReadShort(buf);
for (int i = 0; i < n; i++)
NET_ReadByte(buf);
break;
}
default:
Com_Error(ERR_DROP, "ReadFormat: Unknown type!");
}
}
}
/**
* @brief Decides if following events should be delayed. The delay is the amount of time the actor needs to walk
* from the start to the end pos.
*/
int CL_ActorDoMoveTime (const eventRegister_t *self, dbuffer *msg, eventTiming_t *eventTiming)
{
int time = 0;
const int eventTime = eventTiming->nextTime;
const int number = NET_ReadShort(msg);
/* get le */
const le_t *le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
pos3_t pos;
VectorCopy(le->pos, pos);
byte crouchingState = LE_IsCrouched(le) ? 1 : 0;
/* the end of this event is marked with a 0 */
while (NET_PeekLong(msg) != 0) {
const dvec_t dvec = NET_ReadShort(msg);
const byte dir = getDVdir(dvec);
pos3_t oldPos;
VectorCopy(pos, oldPos);
PosAddDV(pos, crouchingState, dvec);
time += LE_ActorGetStepTime(le, pos, oldPos, dir, NET_ReadShort(msg));
NET_ReadShort(msg);
}
/* skip the end of move marker */
NET_ReadLong(msg);
/* Also skip the final position */
NET_ReadByte(msg);
NET_ReadByte(msg);
NET_ReadByte(msg);
assert(NET_PeekByte(msg) == EV_NULL);
eventTiming->nextTime += time + 400;
return eventTime;
}
/**
* @brief Decides if following events should be delayed. The delay is the amount of time the actor needs to walk
* from the start to the end pos.
*/
int CL_ActorDoMoveTime (const eventRegister_t* self, dbuffer* msg, eventTiming_t* eventTiming)
{
int time = 0;
const int eventTime = eventTiming->nextTime;
const int number = NET_ReadShort(msg);
/* get le */
le_t* le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
pos3_t pos;
VectorCopy(le->pos, pos);
byte crouchingState = LE_IsCrouched(le) ? 1 : 0;
leStep_t* newStep = Mem_AllocType(leStep_t);
if (le->stepList == nullptr) {
le->stepList = newStep;
le->stepIndex = 0;
} else {
/* append to the list */
leStep_t* step = le->stepList;
while (step) {
if (step->next == nullptr) {
step->next = newStep;
le->stepIndex++;
break;
}
step = step->next;
}
}
/* the end of this event is marked with a 0 */
while (NET_PeekLong(msg) != 0) {
newStep->steps = NET_ReadByte(msg);
const dvec_t dvec = NET_ReadShort(msg);
const byte dir = getDVdir(dvec);
pos3_t oldPos;
VectorCopy(pos, oldPos);
PosAddDV(pos, crouchingState, dvec);
const int stepTime = LE_ActorGetStepTime(le, pos, oldPos, dir, NET_ReadShort(msg));
newStep->stepTimes[newStep->steps] = stepTime;
time += stepTime;
NET_ReadShort(msg);
}
++newStep->steps;
if (newStep->steps > MAX_ROUTE)
Com_Error(ERR_DROP, "route length overflow: %i", newStep->steps);
/* skip the end of move marker */
NET_ReadLong(msg);
/* Also skip the final position */
NET_ReadByte(msg);
NET_ReadByte(msg);
NET_ReadByte(msg);
assert(NET_PeekByte(msg) == EV_NULL);
eventTiming->nextTime += time + 400;
newStep->lastMoveTime = eventTime;
newStep->lastMoveDuration = time;
return eventTime;
}
static int SV_ReadLong (void)
{
return NET_ReadLong(sv->messageBuffer);
}
/**
* @sa NET_WritePos
*/
void NET_ReadPos (dbuffer* buf, vec3_t pos)
{
pos[0] = NET_ReadLong(buf) / POSSCALE;
pos[1] = NET_ReadLong(buf) / POSSCALE;
pos[2] = NET_ReadLong(buf) / POSSCALE;
}
float NET_ReadCoord (dbuffer* buf)
{
return (float) NET_ReadLong(buf) * (1.0 / 32);
}