// SONIC ROBO BLAST 2 //----------------------------------------------------------------------------- // Copyright (C) 2012-2016 by John "JTE" Muniz. // Copyright (C) 2012-2016 by Sonic Team Junior. // // This program is free software distributed under the // terms of the GNU General Public License, version 2. // See the 'LICENSE' file for more details. //----------------------------------------------------------------------------- /// \file lua_maplib.c /// \brief game map library for Lua scripting #include "doomdef.h" #ifdef HAVE_BLUA #include "r_state.h" #include "p_local.h" #include "p_setup.h" #include "z_zone.h" #include "lua_script.h" #include "lua_libs.h" #include "lua_hud.h" // hud_running errors #include "dehacked.h" #include "fastcmp.h" #include "doomstat.h" enum sector_e { sector_valid = 0, sector_floorheight, sector_ceilingheight, sector_floorpic, sector_ceilingpic, sector_lightlevel, sector_special, sector_tag, sector_thinglist, sector_heightsec, sector_camsec, sector_lines, sector_ffloors }; static const char *const sector_opt[] = { "valid", "floorheight", "ceilingheight", "floorpic", "ceilingpic", "lightlevel", "special", "tag", "thinglist", "heightsec", "camsec", "lines", "ffloors", NULL}; enum subsector_e { subsector_valid = 0, subsector_sector, subsector_numlines, subsector_firstline, }; static const char *const subsector_opt[] = { "valid", "sector", "numlines", "firstline", NULL}; enum line_e { line_valid = 0, line_v1, line_v2, line_dx, line_dy, line_flags, line_special, line_tag, line_sidenum, line_frontside, line_backside, line_slopetype, line_frontsector, line_backsector, line_firsttag, line_nexttag, line_text, line_callcount }; static const char *const line_opt[] = { "valid", "v1", "v2", "dx", "dy", "flags", "special", "tag", "sidenum", "frontside", "backside", "slopetype", "frontsector", "backsector", "firsttag", "nexttag", "text", "callcount", NULL}; enum side_e { side_valid = 0, side_textureoffset, side_rowoffset, side_toptexture, side_bottomtexture, side_midtexture, side_sector, side_special, side_repeatcnt, side_text }; static const char *const side_opt[] = { "valid", "textureoffset", "rowoffset", "toptexture", "bottomtexture", "midtexture", "sector", "special", "repeatcnt", "text", NULL}; enum vertex_e { vertex_valid = 0, vertex_x, vertex_y, vertex_z }; static const char *const vertex_opt[] = { "valid", "x", "y", "z", NULL}; enum ffloor_e { ffloor_valid = 0, ffloor_topheight, ffloor_toppic, ffloor_toplightlevel, ffloor_bottomheight, ffloor_bottompic, ffloor_sector, ffloor_flags, ffloor_master, ffloor_target, ffloor_next, ffloor_prev, ffloor_alpha, }; static const char *const ffloor_opt[] = { "valid", "topheight", "toppic", "toplightlevel", "bottomheight", "bottompic", "sector", // secnum pushed as control sector userdata "flags", "master", // control linedef "target", // target sector "next", "prev", "alpha", NULL}; #ifdef HAVE_LUA_SEGS enum seg_e { seg_valid = 0, seg_v1, seg_v2, seg_side, seg_offset, seg_angle, seg_sidedef, seg_linedef, seg_frontsector, seg_backsector, }; static const char *const seg_opt[] = { "valid", "v1", "v2", "side", "offset", "angle", "sidedef", "linedef", "frontsector", "backsector", NULL}; enum node_e { node_valid = 0, node_x, node_y, node_dx, node_dy, node_bbox, node_children, }; static const char *const node_opt[] = { "valid", "x", "y", "dx", "dy", "bbox", "children", NULL}; enum nodechild_e { nodechild_valid = 0, nodechild_right, nodechild_left, }; static const char *const nodechild_opt[] = { "valid", "right", "left", NULL}; #endif enum bbox_e { bbox_valid = 0, bbox_top, bbox_bottom, bbox_left, bbox_right, }; static const char *const bbox_opt[] = { "valid", "top", "bottom", "left", "right", NULL}; static const char *const array_opt[] ={"iterate",NULL}; static const char *const valid_opt[] ={"valid",NULL}; /////////////////////////////////// // sector list iterate functions // /////////////////////////////////// // iterates through a sector's thinglist! static int lib_iterateSectorThinglist(lua_State *L) { mobj_t *state = NULL; mobj_t *thing = NULL; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call sector.thinglist() directly, use it as 'for rover in sector.thinglist do end'."); if (!lua_isnil(L, 1)) state = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ)); else return 0; // no thinglist to iterate through sorry! lua_settop(L, 2); lua_remove(L, 1); // remove state now. if (!lua_isnil(L, 1)) { thing = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ)); thing = thing->snext; } else thing = state; // state is used as the "start" of the thinglist if (thing) { LUA_PushUserdata(L, thing, META_MOBJ); return 1; } return 0; } // iterates through the ffloors list in a sector! static int lib_iterateSectorFFloors(lua_State *L) { ffloor_t *state = NULL; ffloor_t *ffloor = NULL; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call sector.ffloors() directly, use it as 'for rover in sector.ffloors do end'."); if (!lua_isnil(L, 1)) state = *((ffloor_t **)luaL_checkudata(L, 1, META_FFLOOR)); else return 0; // no ffloors to iterate through sorry! lua_settop(L, 2); lua_remove(L, 1); // remove state now. if (!lua_isnil(L, 1)) { ffloor = *((ffloor_t **)luaL_checkudata(L, 1, META_FFLOOR)); ffloor = ffloor->next; } else ffloor = state; // state is used as the "start" of the ffloor list if (ffloor) { LUA_PushUserdata(L, ffloor, META_FFLOOR); return 1; } return 0; } static int sector_iterate(lua_State *L) { lua_pushvalue(L, lua_upvalueindex(1)); // iterator function, or the "generator" lua_pushvalue(L, lua_upvalueindex(2)); // state (used as the "start" of the list for our purposes lua_pushnil(L); // initial value (unused) return 3; } //////////////////// // sector.lines[] // //////////////////// // sector.lines, i -> sector.lines[i] // sector.lines.valid, for validity checking static int sectorlines_get(lua_State *L) { line_t **seclines = *((line_t ***)luaL_checkudata(L, 1, META_SECTORLINES)); size_t i; size_t numoflines = 0; lua_settop(L, 2); if (!lua_isnumber(L, 2)) { int field = luaL_checkoption(L, 2, NULL, valid_opt); if (!seclines) { if (field == 0) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed sector_t doesn't exist anymore."); } else if (field == 0) { lua_pushboolean(L, 1); return 1; } } // check first linedef to figure which of its sectors owns this sector->lines pointer // then check that sector's linecount to get a maximum index //if (!seclines[0]) //return luaL_error(L, "no lines found!"); // no first linedef????? if (seclines[0]->frontsector->lines == seclines) numoflines = seclines[0]->frontsector->linecount; else if (seclines[0]->backsector && seclines[0]->backsector->lines == seclines) // check backsector exists first numoflines = seclines[0]->backsector->linecount; //if neither sector has it then ??? if (!numoflines) return luaL_error(L, "no lines found!"); i = (size_t)lua_tointeger(L, 2); if (i >= numoflines) return 0; LUA_PushUserdata(L, seclines[i], META_LINE); return 1; } static int sectorlines_num(lua_State *L) { line_t **seclines = *((line_t ***)luaL_checkudata(L, 1, META_SECTORLINES)); size_t numoflines = 0; // check first linedef to figure which of its sectors owns this sector->lines pointer // then check that sector's linecount to get a maximum index //if (!seclines[0]) //return luaL_error(L, "no lines found!"); // no first linedef????? if (seclines[0]->frontsector->lines == seclines) numoflines = seclines[0]->frontsector->linecount; else if (seclines[0]->backsector && seclines[0]->backsector->lines == seclines) // check backsector exists first numoflines = seclines[0]->backsector->linecount; //if neither sector has it then ??? lua_pushinteger(L, numoflines); return 1; } ////////////// // sector_t // ////////////// static int sector_get(lua_State *L) { sector_t *sector = *((sector_t **)luaL_checkudata(L, 1, META_SECTOR)); enum sector_e field = luaL_checkoption(L, 2, sector_opt[0], sector_opt); INT16 i; if (!sector) { if (field == sector_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed sector_t doesn't exist anymore."); } switch(field) { case sector_valid: // valid lua_pushboolean(L, 1); return 1; case sector_floorheight: lua_pushfixed(L, sector->floorheight); return 1; case sector_ceilingheight: lua_pushfixed(L, sector->ceilingheight); return 1; case sector_floorpic: // floorpic { levelflat_t *levelflat = &levelflats[sector->floorpic]; for (i = 0; i < 8; i++) if (!levelflat->name[i]) break; lua_pushlstring(L, levelflat->name, i); return 1; } case sector_ceilingpic: // ceilingpic { levelflat_t *levelflat = &levelflats[sector->ceilingpic]; for (i = 0; i < 8; i++) if (!levelflat->name[i]) break; lua_pushlstring(L, levelflat->name, i); return 1; } case sector_lightlevel: lua_pushinteger(L, sector->lightlevel); return 1; case sector_special: lua_pushinteger(L, sector->special); return 1; case sector_tag: lua_pushinteger(L, sector->tag); return 1; case sector_thinglist: // thinglist lua_pushcfunction(L, lib_iterateSectorThinglist); LUA_PushUserdata(L, sector->thinglist, META_MOBJ); lua_pushcclosure(L, sector_iterate, 2); // push lib_iterateSectorThinglist and sector->thinglist as upvalues for the function return 1; case sector_heightsec: // heightsec - fake floor heights if (sector->heightsec < 0) return 0; LUA_PushUserdata(L, §ors[sector->heightsec], META_SECTOR); return 1; case sector_camsec: // camsec - camera clipping heights if (sector->camsec < 0) return 0; LUA_PushUserdata(L, §ors[sector->camsec], META_SECTOR); return 1; case sector_lines: // lines LUA_PushUserdata(L, sector->lines, META_SECTORLINES); return 1; case sector_ffloors: // ffloors lua_pushcfunction(L, lib_iterateSectorFFloors); LUA_PushUserdata(L, sector->ffloors, META_FFLOOR); lua_pushcclosure(L, sector_iterate, 2); // push lib_iterateFFloors and sector->ffloors as upvalues for the function return 1; } return 0; } static int sector_set(lua_State *L) { sector_t *sector = *((sector_t **)luaL_checkudata(L, 1, META_SECTOR)); enum sector_e field = luaL_checkoption(L, 2, sector_opt[0], sector_opt); if (!sector) return luaL_error(L, "accessed sector_t doesn't exist anymore."); if (hud_running) return luaL_error(L, "Do not alter sector_t in HUD rendering code!"); switch(field) { case sector_valid: // valid case sector_thinglist: // thinglist case sector_heightsec: // heightsec case sector_camsec: // camsec case sector_ffloors: // ffloors default: return luaL_error(L, "sector_t field " LUA_QS " cannot be set.", sector_opt[field]); case sector_floorheight: { // floorheight boolean flag; mobj_t *ptmthing = tmthing; fixed_t lastpos = sector->floorheight; sector->floorheight = luaL_checkfixed(L, 3); flag = P_CheckSector(sector, true); if (flag && sector->numattached) { sector->floorheight = lastpos; P_CheckSector(sector, true); } P_SetTarget(&tmthing, ptmthing); break; } case sector_ceilingheight: { // ceilingheight boolean flag; mobj_t *ptmthing = tmthing; fixed_t lastpos = sector->ceilingheight; sector->ceilingheight = luaL_checkfixed(L, 3); flag = P_CheckSector(sector, true); if (flag && sector->numattached) { sector->ceilingheight = lastpos; P_CheckSector(sector, true); } P_SetTarget(&tmthing, ptmthing); break; } case sector_floorpic: sector->floorpic = P_AddLevelFlatRuntime(luaL_checkstring(L, 3)); break; case sector_ceilingpic: sector->ceilingpic = P_AddLevelFlatRuntime(luaL_checkstring(L, 3)); break; case sector_lightlevel: sector->lightlevel = (INT16)luaL_checkinteger(L, 3); break; case sector_special: sector->special = (INT16)luaL_checkinteger(L, 3); break; case sector_tag: P_ChangeSectorTag((UINT32)(sector - sectors), (INT16)luaL_checkinteger(L, 3)); break; } return 0; } static int sector_num(lua_State *L) { sector_t *sector = *((sector_t **)luaL_checkudata(L, 1, META_SECTOR)); lua_pushinteger(L, sector-sectors); return 1; } ///////////////// // subsector_t // ///////////////// static int subsector_get(lua_State *L) { subsector_t *subsector = *((subsector_t **)luaL_checkudata(L, 1, META_SUBSECTOR)); enum subsector_e field = luaL_checkoption(L, 2, subsector_opt[0], subsector_opt); if (!subsector) { if (field == subsector_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed subsector_t doesn't exist anymore."); } switch(field) { case subsector_valid: // valid lua_pushboolean(L, 1); return 1; case subsector_sector: LUA_PushUserdata(L, subsector->sector, META_SECTOR); return 1; case subsector_numlines: lua_pushinteger(L, subsector->numlines); return 1; case subsector_firstline: lua_pushinteger(L, subsector->firstline); return 1; } return 0; } static int subsector_num(lua_State *L) { subsector_t *subsector = *((subsector_t **)luaL_checkudata(L, 1, META_SUBSECTOR)); lua_pushinteger(L, subsector-subsectors); return 1; } //////////// // line_t // //////////// static int line_get(lua_State *L) { line_t *line = *((line_t **)luaL_checkudata(L, 1, META_LINE)); enum line_e field = luaL_checkoption(L, 2, line_opt[0], line_opt); if (!line) { if (field == line_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed line_t doesn't exist anymore."); } switch(field) { case line_valid: // valid lua_pushboolean(L, 1); return 1; case line_v1: LUA_PushUserdata(L, line->v1, META_VERTEX); return 1; case line_v2: LUA_PushUserdata(L, line->v2, META_VERTEX); return 1; case line_dx: lua_pushfixed(L, line->dx); return 1; case line_dy: lua_pushfixed(L, line->dy); return 1; case line_flags: lua_pushinteger(L, line->flags); return 1; case line_special: lua_pushinteger(L, line->special); return 1; case line_tag: lua_pushinteger(L, line->tag); return 1; case line_sidenum: LUA_PushUserdata(L, line->sidenum, META_SIDENUM); return 1; case line_frontside: // frontside LUA_PushUserdata(L, &sides[line->sidenum[0]], META_SIDE); return 1; case line_backside: // backside if (line->sidenum[1] == 0xffff) return 0; LUA_PushUserdata(L, &sides[line->sidenum[1]], META_SIDE); return 1; case line_slopetype: switch(line->slopetype) { case ST_HORIZONTAL: lua_pushliteral(L, "horizontal"); break; case ST_VERTICAL: lua_pushliteral(L, "vertical"); break; case ST_POSITIVE: lua_pushliteral(L, "positive"); break; case ST_NEGATIVE: lua_pushliteral(L, "negative"); break; } return 1; case line_frontsector: LUA_PushUserdata(L, line->frontsector, META_SECTOR); return 1; case line_backsector: LUA_PushUserdata(L, line->backsector, META_SECTOR); return 1; case line_firsttag: lua_pushinteger(L, line->firsttag); return 1; case line_nexttag: lua_pushinteger(L, line->nexttag); return 1; case line_text: lua_pushstring(L, line->text); return 1; case line_callcount: lua_pushinteger(L, line->callcount); return 1; } return 0; } static int line_num(lua_State *L) { line_t *line = *((line_t **)luaL_checkudata(L, 1, META_LINE)); lua_pushinteger(L, line-lines); return 1; } //////////////////// // line.sidenum[] // //////////////////// static int sidenum_get(lua_State *L) { UINT16 *sidenum = *((UINT16 **)luaL_checkudata(L, 1, META_SIDENUM)); int i; lua_settop(L, 2); if (!lua_isnumber(L, 2)) { int field = luaL_checkoption(L, 2, NULL, valid_opt); if (!sidenum) { if (field == 0) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed line_t doesn't exist anymore."); } else if (field == 0) { lua_pushboolean(L, 1); return 1; } } i = lua_tointeger(L, 2); if (i < 0 || i > 1) return 0; lua_pushinteger(L, sidenum[i]); return 1; } //////////// // side_t // //////////// static int side_get(lua_State *L) { side_t *side = *((side_t **)luaL_checkudata(L, 1, META_SIDE)); enum side_e field = luaL_checkoption(L, 2, side_opt[0], side_opt); if (!side) { if (field == side_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed side_t doesn't exist anymore."); } switch(field) { case side_valid: // valid lua_pushboolean(L, 1); return 1; case side_textureoffset: lua_pushfixed(L, side->textureoffset); return 1; case side_rowoffset: lua_pushfixed(L, side->rowoffset); return 1; case side_toptexture: lua_pushinteger(L, side->toptexture); return 1; case side_bottomtexture: lua_pushinteger(L, side->bottomtexture); return 1; case side_midtexture: lua_pushinteger(L, side->midtexture); return 1; case side_sector: LUA_PushUserdata(L, side->sector, META_SECTOR); return 1; case side_special: lua_pushinteger(L, side->special); return 1; case side_repeatcnt: lua_pushinteger(L, side->repeatcnt); return 1; case side_text: lua_pushstring(L, side->text); return 1; } return 0; } static int side_set(lua_State *L) { side_t *side = *((side_t **)luaL_checkudata(L, 1, META_SIDE)); enum side_e field = luaL_checkoption(L, 2, side_opt[0], side_opt); if (!side) { if (field == side_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed side_t doesn't exist anymore."); } switch(field) { case side_valid: // valid case side_sector: case side_special: case side_text: default: return luaL_error(L, "side_t field " LUA_QS " cannot be set.", side_opt[field]); case side_textureoffset: side->textureoffset = luaL_checkfixed(L, 3); break; case side_rowoffset: side->rowoffset = luaL_checkfixed(L, 3); break; case side_toptexture: side->toptexture = luaL_checkinteger(L, 3); break; case side_bottomtexture: side->bottomtexture = luaL_checkinteger(L, 3); break; case side_midtexture: side->midtexture = luaL_checkinteger(L, 3); break; case side_repeatcnt: side->repeatcnt = luaL_checkinteger(L, 3); break; } return 0; } static int side_num(lua_State *L) { side_t *side = *((side_t **)luaL_checkudata(L, 1, META_SIDE)); lua_pushinteger(L, side-sides); return 1; } ////////////// // vertex_t // ////////////// static int vertex_get(lua_State *L) { vertex_t *vertex = *((vertex_t **)luaL_checkudata(L, 1, META_VERTEX)); enum vertex_e field = luaL_checkoption(L, 2, vertex_opt[0], vertex_opt); if (!vertex) { if (field == vertex_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed vertex_t doesn't exist anymore."); } switch(field) { case vertex_valid: // valid lua_pushboolean(L, 1); return 1; case vertex_x: lua_pushfixed(L, vertex->x); return 1; case vertex_y: lua_pushfixed(L, vertex->y); return 1; case vertex_z: lua_pushfixed(L, vertex->z); return 1; } return 0; } static int vertex_num(lua_State *L) { vertex_t *vertex = *((vertex_t **)luaL_checkudata(L, 1, META_VERTEX)); lua_pushinteger(L, vertex-vertexes); return 1; } #ifdef HAVE_LUA_SEGS /////////// // seg_t // /////////// static int seg_get(lua_State *L) { seg_t *seg = *((seg_t **)luaL_checkudata(L, 1, META_SEG)); enum seg_e field = luaL_checkoption(L, 2, seg_opt[0], seg_opt); if (!seg) { if (field == seg_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed seg_t doesn't exist anymore."); } switch(field) { case seg_valid: // valid lua_pushboolean(L, 1); return 1; case seg_v1: LUA_PushUserdata(L, seg->v1, META_VERTEX); return 1; case seg_v2: LUA_PushUserdata(L, seg->v2, META_VERTEX); return 1; case seg_side: lua_pushinteger(L, seg->side); return 1; case seg_offset: lua_pushfixed(L, seg->offset); return 1; case seg_angle: lua_pushangle(L, seg->angle); return 1; case seg_sidedef: LUA_PushUserdata(L, seg->sidedef, META_SIDE); return 1; case seg_linedef: LUA_PushUserdata(L, seg->linedef, META_LINE); return 1; case seg_frontsector: LUA_PushUserdata(L, seg->frontsector, META_SECTOR); return 1; case seg_backsector: LUA_PushUserdata(L, seg->backsector, META_SECTOR); return 1; } return 0; } static int seg_num(lua_State *L) { seg_t *seg = *((seg_t **)luaL_checkudata(L, 1, META_SEG)); lua_pushinteger(L, seg-segs); return 1; } //////////// // node_t // //////////// static int node_get(lua_State *L) { node_t *node = *((node_t **)luaL_checkudata(L, 1, META_NODE)); enum node_e field = luaL_checkoption(L, 2, node_opt[0], node_opt); if (!node) { if (field == node_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed node_t doesn't exist anymore."); } switch(field) { case node_valid: // valid lua_pushboolean(L, 1); return 1; case node_x: lua_pushfixed(L, node->x); return 1; case node_y: lua_pushfixed(L, node->y); return 1; case node_dx: lua_pushfixed(L, node->x); return 1; case node_dy: lua_pushfixed(L, node->x); return 1; case node_bbox: LUA_PushUserdata(L, node->bbox, META_NODEBBOX); return 1; case node_children: LUA_PushUserdata(L, node->children, META_NODECHILDREN); return 1; } return 0; } static int node_num(lua_State *L) { node_t *node = *((node_t **)luaL_checkudata(L, 1, META_NODE)); lua_pushinteger(L, node-nodes); return 1; } /////////////// // node.bbox // /////////////// /* // node.bbox[i][j]: i = 0 or 1, j = 0 1 2 or 3 // NOTE: 2D arrays are NOT double pointers, // the second bbox will be directly after the first in memory (hence the way the bbox is pushed here) // this function handles the [i] part, bbox_get handles the [j] part static int nodebbox_get(lua_State *L) { fixed_t *bbox = *((fixed_t **)luaL_checkudata(L, 1, META_NODEBBOX)); int i; lua_settop(L, 2); if (!lua_isnumber(L, 2)) { int field = luaL_checkoption(L, 2, NULL, valid_opt); if (!bbox) { if (field == 0) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed node_t doesn't exist anymore."); } else if (field == 0) { lua_pushboolean(L, 1); return 1; } } i = lua_tointeger(L, 2); if (i < 0 || i > 1) return 0; LUA_PushUserdata(L, bbox + i*4*sizeof(fixed_t), META_BBOX); return 1; } */ static int nodebbox_call(lua_State *L) { fixed_t *bbox = *((fixed_t **)luaL_checkudata(L, 1, META_NODEBBOX)); int i, j; int n = lua_gettop(L); if (!bbox) return luaL_error(L, "accessed node bbox doesn't exist anymore."); if (n < 3) return luaL_error(L, "arguments 2 and/or 3 not given (expected node.bbox(child, coord))"); // get child if (!lua_isnumber(L, 2)) { enum nodechild_e field = luaL_checkoption(L, 2, nodechild_opt[0], nodechild_opt); switch (field) { case nodechild_right: i = 0; break; case nodechild_left: i = 1; break; default: return luaL_error(L, "invalid node child \"%s\".", lua_tostring(L, 2)); } } else { i = lua_tointeger(L, 2); if (i < 0 || i > 1) return 0; } // get bbox coord if (!lua_isnumber(L, 3)) { enum bbox_e field = luaL_checkoption(L, 3, bbox_opt[0], bbox_opt); switch (field) { case bbox_top: j = BOXTOP; break; case bbox_bottom: j = BOXBOTTOM; break; case bbox_left: j = BOXLEFT; break; case bbox_right: j = BOXRIGHT; break; default: return luaL_error(L, "invalid bbox coordinate \"%s\".", lua_tostring(L, 3)); } } else { j = lua_tointeger(L, 3); if (j < 0 || j > 3) return 0; } lua_pushinteger(L, bbox[i*4 + j]); return 1; } ///////////////////// // node.children[] // ///////////////////// // node.children[i]: i = 0 or 1 static int nodechildren_get(lua_State *L) { UINT16 *children = *((UINT16 **)luaL_checkudata(L, 1, META_NODECHILDREN)); int i; lua_settop(L, 2); if (!lua_isnumber(L, 2)) { enum nodechild_e field = luaL_checkoption(L, 2, nodechild_opt[0], nodechild_opt); if (!children) { if (field == nodechild_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed node_t doesn't exist anymore."); } else if (field == nodechild_valid) { lua_pushboolean(L, 1); return 1; } else switch (field) { case nodechild_right: i = 0; break; case nodechild_left: i = 1; break; default: return 0; } } else { i = lua_tointeger(L, 2); if (i < 0 || i > 1) return 0; } lua_pushinteger(L, children[i]); return 1; } #endif ////////// // bbox // ////////// // bounding box (aka fixed_t array with four elements) // NOTE: may be useful for polyobjects or other things later static int bbox_get(lua_State *L) { fixed_t *bbox = *((fixed_t **)luaL_checkudata(L, 1, META_BBOX)); int i; lua_settop(L, 2); if (!lua_isnumber(L, 2)) { enum bbox_e field = luaL_checkoption(L, 2, bbox_opt[0], bbox_opt); if (!bbox) { if (field == bbox_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed bbox doesn't exist anymore."); } else if (field == bbox_valid) { lua_pushboolean(L, 1); return 1; } else switch (field) { case bbox_top: i = BOXTOP; break; case bbox_bottom: i = BOXBOTTOM; break; case bbox_left: i = BOXLEFT; break; case bbox_right: i = BOXRIGHT; break; default: return 0; } } else { i = lua_tointeger(L, 2); if (i < 0 || i > 3) return 0; } lua_pushinteger(L, bbox[i]); return 1; } /////////////// // sectors[] // /////////////// static int lib_iterateSectors(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call sectors.iterate() directly, use it as 'for sector in sectors.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((sector_t **)luaL_checkudata(L, 1, META_SECTOR)) - sectors)+1; if (i < numsectors) { LUA_PushUserdata(L, §ors[i], META_SECTOR); return 1; } return 0; } static int lib_getSector(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numsectors) return 0; LUA_PushUserdata(L, §ors[i], META_SECTOR); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateSectors); return 1; } return 0; } static int lib_numsectors(lua_State *L) { lua_pushinteger(L, numsectors); return 1; } ////////////////// // subsectors[] // ////////////////// static int lib_iterateSubsectors(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call subsectors.iterate() directly, use it as 'for subsector in subsectors.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((subsector_t **)luaL_checkudata(L, 1, META_SUBSECTOR)) - subsectors)+1; if (i < numsubsectors) { LUA_PushUserdata(L, &subsectors[i], META_SUBSECTOR); return 1; } return 0; } static int lib_getSubsector(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numsubsectors) return 0; LUA_PushUserdata(L, &subsectors[i], META_SUBSECTOR); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateSubsectors); return 1; } return 0; } static int lib_numsubsectors(lua_State *L) { lua_pushinteger(L, numsubsectors); return 1; } ///////////// // lines[] // ///////////// static int lib_iterateLines(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call lines.iterate() directly, use it as 'for line in lines.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((line_t **)luaL_checkudata(L, 1, META_LINE)) - lines)+1; if (i < numlines) { LUA_PushUserdata(L, &lines[i], META_LINE); return 1; } return 0; } static int lib_getLine(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numlines) return 0; LUA_PushUserdata(L, &lines[i], META_LINE); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateLines); return 1; } return 0; } static int lib_numlines(lua_State *L) { lua_pushinteger(L, numlines); return 1; } ///////////// // sides[] // ///////////// static int lib_iterateSides(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call sides.iterate() directly, use it as 'for side in sides.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((side_t **)luaL_checkudata(L, 1, META_SIDE)) - sides)+1; if (i < numsides) { LUA_PushUserdata(L, &sides[i], META_SIDE); return 1; } return 0; } static int lib_getSide(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numsides) return 0; LUA_PushUserdata(L, &sides[i], META_SIDE); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateSides); return 1; } return 0; } static int lib_numsides(lua_State *L) { lua_pushinteger(L, numsides); return 1; } //////////////// // vertexes[] // //////////////// static int lib_iterateVertexes(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call vertexes.iterate() directly, use it as 'for vertex in vertexes.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((vertex_t **)luaL_checkudata(L, 1, META_VERTEX)) - vertexes)+1; if (i < numvertexes) { LUA_PushUserdata(L, &vertexes[i], META_VERTEX); return 1; } return 0; } static int lib_getVertex(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numvertexes) return 0; LUA_PushUserdata(L, &vertexes[i], META_VERTEX); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateVertexes); return 1; } return 0; } static int lib_numvertexes(lua_State *L) { lua_pushinteger(L, numvertexes); return 1; } #ifdef HAVE_LUA_SEGS //////////// // segs[] // //////////// static int lib_iterateSegs(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call segs.iterate() directly, use it as 'for seg in segs.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((seg_t **)luaL_checkudata(L, 1, META_SEG)) - segs)+1; if (i < numsegs) { LUA_PushUserdata(L, &segs[i], META_SEG); return 1; } return 0; } static int lib_getSeg(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numsegs) return 0; LUA_PushUserdata(L, &segs[i], META_SEG); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateSegs); return 1; } return 0; } static int lib_numsegs(lua_State *L) { lua_pushinteger(L, numsegs); return 1; } ///////////// // nodes[] // ///////////// static int lib_iterateNodes(lua_State *L) { size_t i = 0; if (gamestate != GS_LEVEL) return luaL_error(L, "This function can only be used in a level!"); if (lua_gettop(L) < 2) return luaL_error(L, "Don't call nodes.iterate() directly, use it as 'for node in nodes.iterate do end'."); lua_settop(L, 2); lua_remove(L, 1); // state is unused. if (!lua_isnil(L, 1)) i = (size_t)(*((node_t **)luaL_checkudata(L, 1, META_NODE)) - nodes)+1; if (i < numsegs) { LUA_PushUserdata(L, &nodes[i], META_NODE); return 1; } return 0; } static int lib_getNode(lua_State *L) { int field; if (gamestate != GS_LEVEL) return luaL_error(L, "You cannot access this outside of a level!"); lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1); if (i >= numnodes) return 0; LUA_PushUserdata(L, &nodes[i], META_NODE); return 1; } field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateNodes); return 1; } return 0; } static int lib_numnodes(lua_State *L) { lua_pushinteger(L, numnodes); return 1; } #endif ////////////// // ffloor_t // ////////////// static int ffloor_get(lua_State *L) { ffloor_t *ffloor = *((ffloor_t **)luaL_checkudata(L, 1, META_FFLOOR)); enum ffloor_e field = luaL_checkoption(L, 2, ffloor_opt[0], ffloor_opt); if (!ffloor) { if (field == ffloor_valid) { lua_pushboolean(L, 0); return 1; } return luaL_error(L, "accessed ffloor_t doesn't exist anymore."); } switch(field) { case ffloor_valid: // valid lua_pushboolean(L, 1); return 1; case ffloor_topheight: lua_pushfixed(L, *ffloor->topheight); return 1; case ffloor_toppic: { // toppic levelflat_t *levelflat; INT16 i; for (i = 0, levelflat = levelflats; i != *ffloor->toppic; i++, levelflat++) ; lua_pushlstring(L, levelflat->name, 8); return 1; } case ffloor_toplightlevel: lua_pushinteger(L, *ffloor->toplightlevel); return 1; case ffloor_bottomheight: lua_pushfixed(L, *ffloor->bottomheight); return 1; case ffloor_bottompic: { // bottompic levelflat_t *levelflat; INT16 i; for (i = 0, levelflat = levelflats; i != *ffloor->bottompic; i++, levelflat++) ; lua_pushlstring(L, levelflat->name, 8); return 1; } case ffloor_sector: LUA_PushUserdata(L, §ors[ffloor->secnum], META_SECTOR); return 1; case ffloor_flags: lua_pushinteger(L, ffloor->flags); return 1; case ffloor_master: LUA_PushUserdata(L, ffloor->master, META_LINE); return 1; case ffloor_target: LUA_PushUserdata(L, ffloor->target, META_SECTOR); return 1; case ffloor_next: LUA_PushUserdata(L, ffloor->next, META_FFLOOR); return 1; case ffloor_prev: LUA_PushUserdata(L, ffloor->prev, META_FFLOOR); return 1; case ffloor_alpha: lua_pushinteger(L, ffloor->alpha); return 1; } return 0; } static int ffloor_set(lua_State *L) { ffloor_t *ffloor = *((ffloor_t **)luaL_checkudata(L, 1, META_FFLOOR)); enum ffloor_e field = luaL_checkoption(L, 2, ffloor_opt[0], ffloor_opt); if (!ffloor) return luaL_error(L, "accessed ffloor_t doesn't exist anymore."); if (hud_running) return luaL_error(L, "Do not alter ffloor_t in HUD rendering code!"); switch(field) { case ffloor_valid: // valid case ffloor_sector: // sector case ffloor_master: // master case ffloor_target: // target case ffloor_next: // next case ffloor_prev: // prev default: return luaL_error(L, "ffloor_t field " LUA_QS " cannot be set.", ffloor_opt[field]); case ffloor_topheight: { // topheight boolean flag; fixed_t lastpos = *ffloor->topheight; mobj_t *ptmthing = tmthing; sector_t *sector = §ors[ffloor->secnum]; sector->ceilingheight = luaL_checkfixed(L, 3); flag = P_CheckSector(sector, true); if (flag && sector->numattached) { *ffloor->topheight = lastpos; P_CheckSector(sector, true); } P_SetTarget(&tmthing, ptmthing); break; } case ffloor_toppic: *ffloor->toppic = P_AddLevelFlatRuntime(luaL_checkstring(L, 3)); break; case ffloor_toplightlevel: *ffloor->toplightlevel = (INT16)luaL_checkinteger(L, 3); break; case ffloor_bottomheight: { // bottomheight boolean flag; fixed_t lastpos = *ffloor->bottomheight; mobj_t *ptmthing = tmthing; sector_t *sector = §ors[ffloor->secnum]; sector->floorheight = luaL_checkfixed(L, 3); flag = P_CheckSector(sector, true); if (flag && sector->numattached) { *ffloor->bottomheight = lastpos; P_CheckSector(sector, true); } P_SetTarget(&tmthing, ptmthing); break; } case ffloor_bottompic: *ffloor->bottompic = P_AddLevelFlatRuntime(luaL_checkstring(L, 3)); break; case ffloor_flags: { ffloortype_e oldflags = ffloor->flags; // store FOF's old flags ffloor->flags = luaL_checkinteger(L, 3); if (ffloor->flags != oldflags) ffloor->target->moved = true; // reset target sector's lightlist break; } case ffloor_alpha: ffloor->alpha = (INT32)luaL_checkinteger(L, 3); break; } return 0; } ///////////////////// // mapheaderinfo[] // ///////////////////// static int lib_getMapheaderinfo(lua_State *L) { // i -> mapheaderinfo[i-1] //int field; lua_settop(L, 2); lua_remove(L, 1); // dummy userdata table is unused. if (lua_isnumber(L, 1)) { size_t i = lua_tointeger(L, 1)-1; if (i >= NUMMAPS) return 0; LUA_PushUserdata(L, mapheaderinfo[i], META_MAPHEADER); //CONS_Printf(mapheaderinfo[i]->lvlttl); return 1; }/* field = luaL_checkoption(L, 1, NULL, array_opt); switch(field) { case 0: // iterate lua_pushcfunction(L, lib_iterateSubsectors); return 1; }*/ return 0; } static int lib_nummapheaders(lua_State *L) { lua_pushinteger(L, NUMMAPS); return 1; } ///////////////// // mapheader_t // ///////////////// static int mapheaderinfo_get(lua_State *L) { mapheader_t *header = *((mapheader_t **)luaL_checkudata(L, 1, META_MAPHEADER)); const char *field = luaL_checkstring(L, 2); INT16 i; if (fastcmp(field,"lvlttl")) lua_pushstring(L, header->lvlttl); else if (fastcmp(field,"subttl")) lua_pushstring(L, header->subttl); else if (fastcmp(field,"actnum")) lua_pushinteger(L, header->actnum); else if (fastcmp(field,"typeoflevel")) lua_pushinteger(L, header->typeoflevel); else if (fastcmp(field,"nextlevel")) lua_pushinteger(L, header->nextlevel); else if (fastcmp(field,"musname")) lua_pushstring(L, header->musname); else if (fastcmp(field,"mustrack")) lua_pushinteger(L, header->mustrack); else if (fastcmp(field,"forcecharacter")) lua_pushstring(L, header->forcecharacter); else if (fastcmp(field,"weather")) lua_pushinteger(L, header->weather); else if (fastcmp(field,"skynum")) lua_pushinteger(L, header->skynum); else if (fastcmp(field,"skybox_scalex")) lua_pushinteger(L, header->skybox_scalex); else if (fastcmp(field,"skybox_scaley")) lua_pushinteger(L, header->skybox_scaley); else if (fastcmp(field,"skybox_scalez")) lua_pushinteger(L, header->skybox_scalez); else if (fastcmp(field,"interscreen")) { for (i = 0; i < 8; i++) if (!header->interscreen[i]) break; lua_pushlstring(L, header->interscreen, i); } else if (fastcmp(field,"runsoc")) lua_pushstring(L, header->runsoc); else if (fastcmp(field,"scriptname")) lua_pushstring(L, header->scriptname); else if (fastcmp(field,"precutscenenum")) lua_pushinteger(L, header->precutscenenum); else if (fastcmp(field,"cutscenenum")) lua_pushinteger(L, header->cutscenenum); else if (fastcmp(field,"countdown")) lua_pushinteger(L, header->countdown); else if (fastcmp(field,"palette")) lua_pushinteger(L, header->palette); else if (fastcmp(field,"numlaps")) lua_pushinteger(L, header->numlaps); else if (fastcmp(field,"unlockrequired")) lua_pushinteger(L, header->unlockrequired); else if (fastcmp(field,"levelselect")) lua_pushinteger(L, header->levelselect); else if (fastcmp(field,"bonustype")) lua_pushinteger(L, header->bonustype); else if (fastcmp(field,"levelflags")) lua_pushinteger(L, header->levelflags); else if (fastcmp(field,"menuflags")) lua_pushinteger(L, header->menuflags); // TODO add support for reading numGradedMares and grades else { // Read custom vars now // (note: don't include the "LUA." in your lua scripts!) UINT8 j = 0; for (;j < header->numCustomOptions && !fastcmp(field, header->customopts[j].option); ++j); if(j < header->numCustomOptions) lua_pushstring(L, header->customopts[j].value); else lua_pushnil(L); } return 1; } int LUA_MapLib(lua_State *L) { luaL_newmetatable(L, META_SECTORLINES); lua_pushcfunction(L, sectorlines_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, sectorlines_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_SECTOR); lua_pushcfunction(L, sector_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, sector_set); lua_setfield(L, -2, "__newindex"); lua_pushcfunction(L, sector_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_SUBSECTOR); lua_pushcfunction(L, subsector_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, subsector_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_LINE); lua_pushcfunction(L, line_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, line_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_SIDENUM); lua_pushcfunction(L, sidenum_get); lua_setfield(L, -2, "__index"); lua_pop(L, 1); luaL_newmetatable(L, META_SIDE); lua_pushcfunction(L, side_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, side_set); lua_setfield(L, -2, "__newindex"); lua_pushcfunction(L, side_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_VERTEX); lua_pushcfunction(L, vertex_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, vertex_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_FFLOOR); lua_pushcfunction(L, ffloor_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, ffloor_set); lua_setfield(L, -2, "__newindex"); lua_pop(L, 1); #ifdef HAVE_LUA_SEGS luaL_newmetatable(L, META_SEG); lua_pushcfunction(L, seg_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, seg_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_NODE); lua_pushcfunction(L, node_get); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, node_num); lua_setfield(L, -2, "__len"); lua_pop(L, 1); luaL_newmetatable(L, META_NODEBBOX); //lua_pushcfunction(L, nodebbox_get); //lua_setfield(L, -2, "__index"); lua_pushcfunction(L, nodebbox_call); lua_setfield(L, -2, "__call"); lua_pop(L, 1); luaL_newmetatable(L, META_NODECHILDREN); lua_pushcfunction(L, nodechildren_get); lua_setfield(L, -2, "__index"); lua_pop(L, 1); #endif luaL_newmetatable(L, META_BBOX); lua_pushcfunction(L, bbox_get); lua_setfield(L, -2, "__index"); lua_pop(L, 1); luaL_newmetatable(L, META_MAPHEADER); lua_pushcfunction(L, mapheaderinfo_get); lua_setfield(L, -2, "__index"); //lua_pushcfunction(L, mapheaderinfo_num); //lua_setfield(L, -2, "__len"); lua_pop(L, 1); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getSector); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numsectors); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "sectors"); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getSubsector); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numsubsectors); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "subsectors"); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getLine); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numlines); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "lines"); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getSide); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numsides); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "sides"); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getVertex); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numvertexes); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "vertexes"); #ifdef HAVE_LUA_SEGS lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getSeg); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numsegs); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "segs"); lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getNode); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_numnodes); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "nodes"); #endif lua_newuserdata(L, 0); lua_createtable(L, 0, 2); lua_pushcfunction(L, lib_getMapheaderinfo); lua_setfield(L, -2, "__index"); lua_pushcfunction(L, lib_nummapheaders); lua_setfield(L, -2, "__len"); lua_setmetatable(L, -2); lua_setglobal(L, "mapheaderinfo"); return 0; } #endif