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/**
* @file
* @brief Item-related functions in lua library "dgn".
**/
#include "AppHdr.h"
#include "cluautil.h"
#include "l_libs.h"
#include "coord.h"
#include "dungeon.h"
#include "env.h"
#include "items.h"
#include "mapdef.h"
#include "stash.h"
#include "strings.h"
#define ITEMLIST_METATABLE "crawldgn.item_list"
static item_list _lua_get_ilist(lua_State *ls, int ndx)
{
if (lua_isstring(ls, ndx))
{
const char *spec = lua_tostring(ls, ndx);
item_list ilist;
const string err = ilist.add_item(spec);
if (!err.empty())
luaL_error(ls, err.c_str());
return ilist;
}
else
{
item_list **ilist =
clua_get_userdata<item_list*>(ls, ITEMLIST_METATABLE, ndx);
if (ilist)
return **ilist;
luaL_argerror(ls, ndx, "Expected item list object or string");
return item_list();
}
}
void register_itemlist(lua_State *ls)
{
clua_register_metatable(ls, ITEMLIST_METATABLE, NULL,
lua_object_gc<item_list>);
}
static int dgn_item_from_index(lua_State *ls)
{
const int index = luaL_checkint(ls, 1);
item_def *item = &mitm[index];
if (item->defined())
clua_push_item(ls, item);
else
lua_pushnil(ls);
return 1;
}
static int dgn_items_at(lua_State *ls)
{
COORDS(c, 1, 2);
lua_push_floor_items(ls, env.igrid(c));
return 1;
}
static int _dgn_item_spec(lua_State *ls)
{
const item_list ilist = _lua_get_ilist(ls, 1);
dlua_push_object_type<item_list>(ls, ITEMLIST_METATABLE, ilist);
return 1;
}
static int dgn_create_item(lua_State *ls)
{
COORDS(c, 1, 2);
item_list ilist = _lua_get_ilist(ls, 3);
dgn_place_multiple_items(ilist, c);
link_items();
return 0;
}
static int dgn_item_property_remove(lua_State *ls)
{
if (item_def *item = clua_get_item(ls, 1))
item->props.erase(luaL_checkstring(ls, 2));
return 0;
}
static int dgn_item_property_set(lua_State *ls)
{
if (item_def *item = clua_get_item(ls, 1))
{
const string key = luaL_checkstring(ls, 2);
const string type = luaL_checkstring(ls, 3);
if (type.empty() || type.length() > 1)
{
luaL_error(ls, "Expected type: [BbSifsC], got: '%s'",
type.c_str());
}
switch (type[0])
{
case 'B':
item->props[key].get_bool() = lua_toboolean(ls, 4);
break;
case 'b':
item->props[key].get_byte() = luaL_checkint(ls, 4);
break;
case 'S':
item->props[key].get_short() = luaL_checkint(ls, 4);
break;
case 'i':
item->props[key].get_int() = luaL_checkint(ls, 4);
break;
case 'f':
item->props[key].get_float() = luaL_checknumber(ls, 4);
break;
case 's':
item->props[key].get_string() = luaL_checkstring(ls, 4);
break;
case 'C':
item->props[key].get_coord() = coord_def(luaL_checkint(ls, 4),
luaL_checkint(ls, 5));
break;
default:
luaL_error(ls, "Unknown type: '%s'", type.c_str());
break;
}
}
return 0;
}
static int dgn_item_property(lua_State *ls)
{
if (item_def *item = clua_get_item(ls, 1))
{
const string key = luaL_checkstring(ls, 2);
const string type = luaL_checkstring(ls, 3);
if (type.empty() || type.length() > 1)
{
luaL_error(ls, "Expected type: [BbSifsC], got: '%s'",
type.c_str());
}
if (!item->props.exists(key))
{
lua_pushnil(ls);
return 1;
}
switch (type[0])
{
case 'B':
lua_pushboolean(ls, item->props[key].get_byte());
break;
case 'b':
lua_pushnumber(ls, item->props[key].get_byte());
break;
case 'S':
lua_pushnumber(ls, item->props[key].get_short());
break;
case 'i':
lua_pushnumber(ls, item->props[key].get_int());
break;
case 'f':
lua_pushnumber(ls, item->props[key].get_float());
break;
case 's':
lua_pushstring(ls, item->props[key].get_string().c_str());
break;
case 'C':
{
const coord_def p(item->props[key].get_coord());
lua_pushnumber(ls, p.x);
lua_pushnumber(ls, p.y);
return 2;
}
default:
luaL_error(ls, "Unknown type: '%s'", type.c_str());
break;
}
}
return 1;
}
// Returns two arrays: one of floor items, one of shop items.
static int dgn_stash_items(lua_State *ls)
{
unsigned min_value = lua_isnumber(ls, 1) ? luaL_checkint(ls, 1) : 0;
bool skip_stackable = lua_isboolean(ls, 2) ? lua_toboolean(ls, 2)
: false;
vector<const item_def*> floor_items;
vector<const item_def*> shop_items;
for (ST_ItemIterator stii; stii; ++stii)
{
// if this function is added to clua or used for something else than
// troves, we'll might need to parametrize this
if (stii->flags & ISFLAG_UNOBTAINABLE)
continue;
if (skip_stackable && is_stackable_item(*stii))
continue;
if (min_value > 0)
{
if (stii.shop())
{
if (stii.price() < min_value)
continue;
}
else if (item_value(*stii, true) < min_value)
continue;
}
if (stii.shop())
shop_items.push_back(&(*stii));
else
floor_items.push_back(&(*stii));
}
lua_newtable(ls);
int index = 0;
for (unsigned int i = 0; i < floor_items.size(); i++)
{
clua_push_item(ls, const_cast<item_def*>(floor_items[i]));
lua_rawseti(ls, -2, ++index);
}
lua_newtable(ls);
index = 0;
for (unsigned int i = 0; i < shop_items.size(); i++)
{
clua_push_item(ls, const_cast<item_def*>(shop_items[i]));
lua_rawseti(ls, -2, ++index);
}
return 2;
}
const struct luaL_reg dgn_item_dlib[] =
{
{ "item_from_index", dgn_item_from_index },
{ "items_at", dgn_items_at },
{ "create_item", dgn_create_item },
{ "item_property_remove", dgn_item_property_remove },
{ "item_property_set", dgn_item_property_set },
{ "item_property", dgn_item_property },
{ "item_spec", _dgn_item_spec },
{ "stash_items", dgn_stash_items },
{ NULL, NULL }
};
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