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/**
* @file
* @brief Grid and dungeon_feature_type-related bindings.
**/
#include "AppHdr.h"
#include "clua.h"
#include "cluautil.h"
#include "l_libs.h"
#include "coord.h"
#include "directn.h"
#include "dungeon.h"
#include "env.h"
#include "libutil.h"
#include "state.h"
#include "strings.h"
#include "terrain.h"
static int dgn_feature_number(lua_State *ls)
{
const string &name = luaL_checkstring(ls, 1);
PLUARET(number, dungeon_feature_by_name(name));
}
static int dgn_feature_name(lua_State *ls)
{
const unsigned feat = luaL_checkint(ls, 1);
PLUARET(string,
dungeon_feature_name(static_cast<dungeon_feature_type>(feat)));
}
static dungeon_feature_type _get_lua_feature(lua_State *ls, int idx,
bool optional = false)
{
dungeon_feature_type feat = (dungeon_feature_type)0;
if (lua_isnumber(ls, idx))
feat = (dungeon_feature_type)luaL_checkint(ls, idx);
else if (lua_isstring(ls, idx))
feat = dungeon_feature_by_name(luaL_checkstring(ls, idx));
else if (!optional)
luaL_argerror(ls, idx, "Feature must be a string or a feature index.");
return feat;
}
dungeon_feature_type check_lua_feature(lua_State *ls, int idx, bool optional)
{
const dungeon_feature_type f = _get_lua_feature(ls, idx, optional);
if (!optional && !f)
luaL_argerror(ls, idx, "Invalid dungeon feature");
return f;
}
#define FEAT(f, pos) \
dungeon_feature_type f = check_lua_feature(ls, pos)
static int dgn_feature_desc(lua_State *ls)
{
const dungeon_feature_type feat =
static_cast<dungeon_feature_type>(luaL_checkint(ls, 1));
const description_level_type dtype =
lua_isnumber(ls, 2)?
static_cast<description_level_type>(luaL_checkint(ls, 2)) :
description_type_by_name(lua_tostring(ls, 2));
const bool need_stop = lua_isboolean(ls, 3)? lua_toboolean(ls, 3) : false;
const string s = feature_description(feat, NUM_TRAPS, "", dtype, need_stop);
lua_pushstring(ls, s.c_str());
return 1;
}
static int dgn_feature_desc_at(lua_State *ls)
{
const description_level_type dtype =
lua_isnumber(ls, 3)?
static_cast<description_level_type>(luaL_checkint(ls, 3)) :
description_type_by_name(lua_tostring(ls, 3));
const bool need_stop = lua_isboolean(ls, 4)? lua_toboolean(ls, 4) : false;
const string s = feature_description_at(coord_def(luaL_checkint(ls, 1),
luaL_checkint(ls, 2)),
false, dtype, need_stop);
lua_pushstring(ls, s.c_str());
return 1;
}
static int dgn_max_bounds(lua_State *ls)
{
lua_pushnumber(ls, GXM);
lua_pushnumber(ls, GYM);
return 2;
}
static int dgn_in_bounds(lua_State *ls)
{
int x = luaL_checkint(ls, 1);
int y = luaL_checkint(ls, 2);
lua_pushboolean(ls, in_bounds(x, y));
return 1;
}
static int dgn_grid(lua_State *ls)
{
GETCOORD(c, 1, 2, map_bounds);
if (!lua_isnone(ls, 3))
{
const dungeon_feature_type feat = _get_lua_feature(ls, 3);
if (feat)
{
if (crawl_state.generating_level)
grd(c) = feat;
else
dungeon_terrain_changed(c, feat);
}
}
PLUARET(number, grd(c));
}
LUAFN(dgn_distance)
{
COORDS(p1, 1, 2);
COORDS(p2, 3, 4);
lua_pushnumber(ls, distance2(p1, p2));
return 1;
}
LUAFN(dgn_seen_replace_feat)
{
dungeon_feature_type f1 = _get_lua_feature(ls, 1);
dungeon_feature_type f2 = _get_lua_feature(ls, 2);
lua_pushboolean(ls, seen_replace_feat(f1, f2));
return 1;
}
const struct luaL_reg dgn_grid_dlib[] =
{
{ "feature_number", dgn_feature_number },
{ "feature_name", dgn_feature_name },
{ "feature_desc", dgn_feature_desc },
{ "feature_desc_at", dgn_feature_desc_at },
{ "seen_replace_feat", dgn_seen_replace_feat },
{ "grid", dgn_grid },
{ "max_bounds", dgn_max_bounds },
{ "in_bounds", dgn_in_bounds },
{ "distance", dgn_distance },
{ NULL, NULL }
};
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