/**
* @brief Gets the planet's faction.
*
* @usage f = p:faction()
* @luatparam Planet p Planet to get the faction of.
* @luatreturn Faction The planet's faction.
* @luafunc faction( p )
*/
static int planetL_faction( lua_State *L )
{
Planet *p;
p = luaL_validplanet(L,1);
if (p->faction < 0)
return 0;
lua_pushfaction(L, p->faction);
return 1;
}
/**
* @brief Gets the planet's faction.
*
* @usage f = p:faction()
* @luaparam p Planet to get the faction of.
* @luareturn The planet's faction.
* @luafunc faction( p )
*/
static int planetL_faction( lua_State *L )
{
LuaPlanet *p;
LuaFaction f;
p = luaL_checkplanet(L,1);
if (p->p->faction < 0)
return 0;
f.f = p->p->faction;
lua_pushfaction(L, f);
return 1;
}
/**
* @brief Gets system faction.
*
* @luatparam System s System to get the faction of.
* @luatreturn Faction The dominant faction in the system.
* @luafunc faction( s )
*/
static int systemL_faction( lua_State *L )
{
StarSystem *s;
s = luaL_validsystem(L,1);
if (s->faction == -1)
return 0;
lua_pushfaction(L,s->faction);
return 1;
}
/**
* @brief Gets the faction based on its name.
*
* @usage f = faction.get( "Empire" )
*
* @luaparam name Name of the faction to get.
* @luareturn The faction matching name.
* @luafunc get( name )
*/
static int factionL_get( lua_State *L )
{
LuaFaction f;
const char *name;
name = luaL_checkstring(L,1);
f.f = faction_get(name);
if (f.f < 0) {
NLUA_ERROR(L,"Faction '%s' not found in stack.", name );
return 0;
}
lua_pushfaction(L,f);
return 1;
}
/**
* @brief Gets system faction.
*
* @luaparam s System to get the faction of.
* @luareturn The dominant faction in the system.
* @luafunc faction( s )
*/
static int systemL_faction( lua_State *L )
{
LuaFaction lf;
StarSystem *s;
s = luaL_validsystem(L,1);
if (s->faction == -1)
return 0;
else
lf.f = s->faction;
lua_pushfaction(L,lf);
return 1;
}
/**
* @brief Gets the allies of the faction.
*
* @usage for k,v in pairs(f:allies()) do -- Iterate over faction allies
*
* @luatparam Faction f Faction to get allies of.
* @luatreturn {Faction,...} A table containing the allies of the faction.
* @luafunc allies( f )
*/
static int factionL_allies( lua_State *L )
{
int i, n, f;
int *factions;
f = luaL_validfaction(L,1);
/* Push the enemies in a table. */
lua_newtable(L);
factions = faction_getAllies( f, &n );
for (i=0; i<n; i++) {
lua_pushnumber(L, i+1); /* key */
lua_pushfaction(L, factions[i]); /* value */
lua_rawset(L, -3);
}
return 1;
}
/**
* @brief Gets the factions the mission is available for.
*
* @usage f = misn.factions()
* @luareturn A containing the factions for whom the mission is available.
* @luafunc factions()
*/
static int misn_factions( lua_State *L )
{
int i;
MissionData *dat;
LuaFaction f;
dat = cur_mission->data;
/* we'll push all the factions in table form */
lua_newtable(L);
for (i=0; i<dat->avail.nfactions; i++) {
lua_pushnumber(L,i+1); /* index, starts with 1 */
f.f = dat->avail.factions[i];
lua_pushfaction(L, f); /* value */
lua_rawset(L,-3); /* store the value in the table */
}
return 1;
}
/**
* @brief Unpersists Lua data.
*
* @param L State to unperisist data into.
* @param parent Node containing all the Lua persisted data.
* @return 0 on success.
*/
static int nxml_unpersistDataNode( lua_State *L, xmlNodePtr parent )
{
LuaPlanet p;
LuaSystem s;
LuaFaction f;
LuaShip sh;
LuaTime lt;
Planet *pnt;
StarSystem *ss;
xmlNodePtr node;
char *name, *type, *buf, *num;
int keynum;
node = parent->xmlChildrenNode;
do {
if (xml_isNode(node,"data")) {
/* Get general info. */
xmlr_attr(node,"name",name);
xmlr_attr(node,"type",type);
/* Check to see if key is a number. */
xmlr_attr(node,"keynum",num);
if (num != NULL) {
keynum = 1;
lua_pushnumber(L, atof(name));
free(num);
}
else
lua_pushstring(L, name);
/* handle data types */
/* Recursive tables. */
if (strcmp(type,"table")==0) {
xmlr_attr(node,"name",buf);
/* Create new table. */
lua_newtable(L);
/* Save data. */
nxml_unpersistDataNode(L,node);
/* Set table. */
free(buf);
}
else if (strcmp(type,"number")==0)
lua_pushnumber(L,xml_getFloat(node));
else if (strcmp(type,"bool")==0)
lua_pushboolean(L,xml_getInt(node));
else if (strcmp(type,"string")==0)
lua_pushstring(L,xml_get(node));
else if (strcmp(type,"planet")==0) {
pnt = planet_get(xml_get(node));
if (pnt != NULL) {
p.id = planet_index(pnt);
lua_pushplanet(L,p);
}
else
WARN("Failed to load unexistent planet '%s'", xml_get(node));
}
else if (strcmp(type,"system")==0) {
ss = system_get(xml_get(node));
if (ss != NULL) {
s.id = system_index( ss );
lua_pushsystem(L,s);
}
else
WARN("Failed to load unexistent system '%s'", xml_get(node));
}
else if (strcmp(type,"faction")==0) {
f.f = faction_get(xml_get(node));
lua_pushfaction(L,f);
}
else if (strcmp(type,"ship")==0) {
sh.ship = ship_get(xml_get(node));
lua_pushship(L,sh);
}
else if (strcmp(type,"time")==0) {
lt.t = xml_getLong(node);
lua_pushtime(L,lt);
}
else {
WARN("Unknown lua data type!");
lua_pop(L,1);
return -1;
}
/* Set field. */
lua_settable(L, -3);
/* cleanup */
free(type);
free(name);
}
} while (xml_nextNode(node));
return 0;
}
