3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 #include "common/c_content.h"
20 #include "common/c_converter.h"
21 #include "common/c_types.h"
23 #include "object_properties.h"
24 #include "collision.h"
25 #include "cpp_api/s_node.h"
26 #include "lua_api/l_object.h"
27 #include "lua_api/l_item.h"
28 #include "common/c_internal.h"
33 #include "mapgen/mg_schematic.h"
35 #include "server/player_sao.h"
36 #include "util/pointedthing.h"
37 #include "debug.h" // For FATAL_ERROR
38 #include <json/json.h>
40 struct EnumString es_TileAnimationType[] =
43 {TAT_VERTICAL_FRAMES, "vertical_frames"},
44 {TAT_SHEET_2D, "sheet_2d"},
48 /******************************************************************************/
49 void read_item_definition(lua_State* L, int index,
50 const ItemDefinition &default_def, ItemDefinition &def)
53 index = lua_gettop(L) + 1 + index;
55 def.type = (ItemType)getenumfield(L, index, "type",
56 es_ItemType, ITEM_NONE);
57 getstringfield(L, index, "name", def.name);
58 getstringfield(L, index, "description", def.description);
59 getstringfield(L, index, "short_description", def.short_description);
60 getstringfield(L, index, "inventory_image", def.inventory_image);
61 getstringfield(L, index, "inventory_overlay", def.inventory_overlay);
62 getstringfield(L, index, "wield_image", def.wield_image);
63 getstringfield(L, index, "wield_overlay", def.wield_overlay);
64 getstringfield(L, index, "palette", def.palette_image);
67 lua_getfield(L, index, "color");
68 read_color(L, -1, &def.color);
71 lua_getfield(L, index, "wield_scale");
72 if(lua_istable(L, -1)){
73 def.wield_scale = check_v3f(L, -1);
77 int stack_max = getintfield_default(L, index, "stack_max", def.stack_max);
78 def.stack_max = rangelim(stack_max, 1, U16_MAX);
80 lua_getfield(L, index, "on_use");
81 def.usable = lua_isfunction(L, -1);
84 getboolfield(L, index, "liquids_pointable", def.liquids_pointable);
86 lua_getfield(L, index, "tool_capabilities");
87 if(lua_istable(L, -1)){
88 def.tool_capabilities = new ToolCapabilities(
89 read_tool_capabilities(L, -1));
92 // If name is "" (hand), ensure there are ToolCapabilities
93 // because it will be looked up there whenever any other item has
94 // no ToolCapabilities
95 if (def.name.empty() && def.tool_capabilities == NULL){
96 def.tool_capabilities = new ToolCapabilities();
99 lua_getfield(L, index, "groups");
100 read_groups(L, -1, def.groups);
103 lua_getfield(L, index, "sounds");
104 if (!lua_isnil(L, -1)) {
105 luaL_checktype(L, -1, LUA_TTABLE);
106 lua_getfield(L, -1, "place");
107 read_soundspec(L, -1, def.sound_place);
109 lua_getfield(L, -1, "place_failed");
110 read_soundspec(L, -1, def.sound_place_failed);
115 def.range = getfloatfield_default(L, index, "range", def.range);
117 // Client shall immediately place this node when player places the item.
118 // Server will update the precise end result a moment later.
119 // "" = no prediction
120 getstringfield(L, index, "node_placement_prediction",
121 def.node_placement_prediction);
123 getintfield(L, index, "place_param2", def.place_param2);
126 /******************************************************************************/
127 void push_item_definition(lua_State *L, const ItemDefinition &i)
130 lua_pushstring(L, i.name.c_str());
131 lua_setfield(L, -2, "name");
132 lua_pushstring(L, i.description.c_str());
133 lua_setfield(L, -2, "description");
136 void push_item_definition_full(lua_State *L, const ItemDefinition &i)
138 std::string type(es_ItemType[(int)i.type].str);
141 lua_pushstring(L, i.name.c_str());
142 lua_setfield(L, -2, "name");
143 lua_pushstring(L, i.description.c_str());
144 lua_setfield(L, -2, "description");
145 if (!i.short_description.empty()) {
146 lua_pushstring(L, i.short_description.c_str());
147 lua_setfield(L, -2, "short_description");
149 lua_pushstring(L, type.c_str());
150 lua_setfield(L, -2, "type");
151 lua_pushstring(L, i.inventory_image.c_str());
152 lua_setfield(L, -2, "inventory_image");
153 lua_pushstring(L, i.inventory_overlay.c_str());
154 lua_setfield(L, -2, "inventory_overlay");
155 lua_pushstring(L, i.wield_image.c_str());
156 lua_setfield(L, -2, "wield_image");
157 lua_pushstring(L, i.wield_overlay.c_str());
158 lua_setfield(L, -2, "wield_overlay");
159 lua_pushstring(L, i.palette_image.c_str());
160 lua_setfield(L, -2, "palette_image");
161 push_ARGB8(L, i.color);
162 lua_setfield(L, -2, "color");
163 push_v3f(L, i.wield_scale);
164 lua_setfield(L, -2, "wield_scale");
165 lua_pushinteger(L, i.stack_max);
166 lua_setfield(L, -2, "stack_max");
167 lua_pushboolean(L, i.usable);
168 lua_setfield(L, -2, "usable");
169 lua_pushboolean(L, i.liquids_pointable);
170 lua_setfield(L, -2, "liquids_pointable");
171 if (i.tool_capabilities) {
172 push_tool_capabilities(L, *i.tool_capabilities);
173 lua_setfield(L, -2, "tool_capabilities");
175 push_groups(L, i.groups);
176 lua_setfield(L, -2, "groups");
177 push_soundspec(L, i.sound_place);
178 lua_setfield(L, -2, "sound_place");
179 push_soundspec(L, i.sound_place_failed);
180 lua_setfield(L, -2, "sound_place_failed");
181 lua_pushstring(L, i.node_placement_prediction.c_str());
182 lua_setfield(L, -2, "node_placement_prediction");
185 /******************************************************************************/
186 void read_object_properties(lua_State *L, int index,
187 ServerActiveObject *sao, ObjectProperties *prop, IItemDefManager *idef)
190 index = lua_gettop(L) + 1 + index;
191 if (lua_isnil(L, index))
194 luaL_checktype(L, -1, LUA_TTABLE);
197 if (getintfield(L, -1, "hp_max", hp_max)) {
198 prop->hp_max = (u16)rangelim(hp_max, 0, U16_MAX);
200 if (prop->hp_max < sao->getHP()) {
201 PlayerHPChangeReason reason(PlayerHPChangeReason::SET_HP);
202 sao->setHP(prop->hp_max, reason);
206 if (getintfield(L, -1, "breath_max", prop->breath_max)) {
207 if (sao->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
208 PlayerSAO *player = (PlayerSAO *)sao;
209 if (prop->breath_max < player->getBreath())
210 player->setBreath(prop->breath_max);
213 getboolfield(L, -1, "physical", prop->physical);
214 getboolfield(L, -1, "collide_with_objects", prop->collideWithObjects);
216 lua_getfield(L, -1, "collisionbox");
217 bool collisionbox_defined = lua_istable(L, -1);
218 if (collisionbox_defined)
219 prop->collisionbox = read_aabb3f(L, -1, 1.0);
222 lua_getfield(L, -1, "selectionbox");
223 if (lua_istable(L, -1))
224 prop->selectionbox = read_aabb3f(L, -1, 1.0);
225 else if (collisionbox_defined)
226 prop->selectionbox = prop->collisionbox;
229 getboolfield(L, -1, "pointable", prop->pointable);
230 getstringfield(L, -1, "visual", prop->visual);
232 getstringfield(L, -1, "mesh", prop->mesh);
234 lua_getfield(L, -1, "visual_size");
235 if (lua_istable(L, -1)) {
236 // Backwards compatibility: Also accept { x = ?, y = ? }
237 v2f scale_xy = read_v2f(L, -1);
239 f32 scale_z = scale_xy.X;
240 lua_getfield(L, -1, "z");
241 if (lua_isnumber(L, -1))
242 scale_z = lua_tonumber(L, -1);
245 prop->visual_size = v3f(scale_xy.X, scale_xy.Y, scale_z);
249 lua_getfield(L, -1, "textures");
250 if(lua_istable(L, -1)){
251 prop->textures.clear();
252 int table = lua_gettop(L);
254 while(lua_next(L, table) != 0){
255 // key at index -2 and value at index -1
256 if(lua_isstring(L, -1))
257 prop->textures.emplace_back(lua_tostring(L, -1));
259 prop->textures.emplace_back("");
260 // removes value, keeps key for next iteration
266 lua_getfield(L, -1, "colors");
267 if (lua_istable(L, -1)) {
268 int table = lua_gettop(L);
269 prop->colors.clear();
270 for (lua_pushnil(L); lua_next(L, table); lua_pop(L, 1)) {
271 video::SColor color(255, 255, 255, 255);
272 read_color(L, -1, &color);
273 prop->colors.push_back(color);
278 lua_getfield(L, -1, "spritediv");
279 if(lua_istable(L, -1))
280 prop->spritediv = read_v2s16(L, -1);
283 lua_getfield(L, -1, "initial_sprite_basepos");
284 if(lua_istable(L, -1))
285 prop->initial_sprite_basepos = read_v2s16(L, -1);
288 getboolfield(L, -1, "is_visible", prop->is_visible);
289 getboolfield(L, -1, "makes_footstep_sound", prop->makes_footstep_sound);
290 if (getfloatfield(L, -1, "stepheight", prop->stepheight))
291 prop->stepheight *= BS;
292 getfloatfield(L, -1, "eye_height", prop->eye_height);
294 getfloatfield(L, -1, "automatic_rotate", prop->automatic_rotate);
295 lua_getfield(L, -1, "automatic_face_movement_dir");
296 if (lua_isnumber(L, -1)) {
297 prop->automatic_face_movement_dir = true;
298 prop->automatic_face_movement_dir_offset = luaL_checknumber(L, -1);
299 } else if (lua_isboolean(L, -1)) {
300 prop->automatic_face_movement_dir = lua_toboolean(L, -1);
301 prop->automatic_face_movement_dir_offset = 0.0;
304 getboolfield(L, -1, "backface_culling", prop->backface_culling);
305 getintfield(L, -1, "glow", prop->glow);
307 getstringfield(L, -1, "nametag", prop->nametag);
308 lua_getfield(L, -1, "nametag_color");
309 if (!lua_isnil(L, -1)) {
310 video::SColor color = prop->nametag_color;
311 if (read_color(L, -1, &color))
312 prop->nametag_color = color;
315 lua_getfield(L, -1, "nametag_bgcolor");
316 if (!lua_isnil(L, -1)) {
317 if (lua_toboolean(L, -1)) {
319 if (read_color(L, -1, &color))
320 prop->nametag_bgcolor = color;
322 prop->nametag_bgcolor = nullopt;
327 lua_getfield(L, -1, "automatic_face_movement_max_rotation_per_sec");
328 if (lua_isnumber(L, -1)) {
329 prop->automatic_face_movement_max_rotation_per_sec = luaL_checknumber(L, -1);
333 getstringfield(L, -1, "infotext", prop->infotext);
334 getboolfield(L, -1, "static_save", prop->static_save);
336 lua_getfield(L, -1, "wield_item");
337 if (!lua_isnil(L, -1))
338 prop->wield_item = read_item(L, -1, idef).getItemString();
341 getfloatfield(L, -1, "zoom_fov", prop->zoom_fov);
342 getboolfield(L, -1, "use_texture_alpha", prop->use_texture_alpha);
343 getboolfield(L, -1, "shaded", prop->shaded);
344 getboolfield(L, -1, "show_on_minimap", prop->show_on_minimap);
346 getstringfield(L, -1, "damage_texture_modifier", prop->damage_texture_modifier);
349 /******************************************************************************/
350 void push_object_properties(lua_State *L, ObjectProperties *prop)
353 lua_pushnumber(L, prop->hp_max);
354 lua_setfield(L, -2, "hp_max");
355 lua_pushnumber(L, prop->breath_max);
356 lua_setfield(L, -2, "breath_max");
357 lua_pushboolean(L, prop->physical);
358 lua_setfield(L, -2, "physical");
359 lua_pushboolean(L, prop->collideWithObjects);
360 lua_setfield(L, -2, "collide_with_objects");
361 push_aabb3f(L, prop->collisionbox);
362 lua_setfield(L, -2, "collisionbox");
363 push_aabb3f(L, prop->selectionbox);
364 lua_setfield(L, -2, "selectionbox");
365 lua_pushboolean(L, prop->pointable);
366 lua_setfield(L, -2, "pointable");
367 lua_pushlstring(L, prop->visual.c_str(), prop->visual.size());
368 lua_setfield(L, -2, "visual");
369 lua_pushlstring(L, prop->mesh.c_str(), prop->mesh.size());
370 lua_setfield(L, -2, "mesh");
371 push_v3f(L, prop->visual_size);
372 lua_setfield(L, -2, "visual_size");
374 lua_createtable(L, prop->textures.size(), 0);
376 for (const std::string &texture : prop->textures) {
377 lua_pushlstring(L, texture.c_str(), texture.size());
378 lua_rawseti(L, -2, i++);
380 lua_setfield(L, -2, "textures");
382 lua_createtable(L, prop->colors.size(), 0);
384 for (const video::SColor &color : prop->colors) {
385 push_ARGB8(L, color);
386 lua_rawseti(L, -2, i++);
388 lua_setfield(L, -2, "colors");
390 push_v2s16(L, prop->spritediv);
391 lua_setfield(L, -2, "spritediv");
392 push_v2s16(L, prop->initial_sprite_basepos);
393 lua_setfield(L, -2, "initial_sprite_basepos");
394 lua_pushboolean(L, prop->is_visible);
395 lua_setfield(L, -2, "is_visible");
396 lua_pushboolean(L, prop->makes_footstep_sound);
397 lua_setfield(L, -2, "makes_footstep_sound");
398 lua_pushnumber(L, prop->stepheight / BS);
399 lua_setfield(L, -2, "stepheight");
400 lua_pushnumber(L, prop->eye_height);
401 lua_setfield(L, -2, "eye_height");
402 lua_pushnumber(L, prop->automatic_rotate);
403 lua_setfield(L, -2, "automatic_rotate");
404 if (prop->automatic_face_movement_dir)
405 lua_pushnumber(L, prop->automatic_face_movement_dir_offset);
407 lua_pushboolean(L, false);
408 lua_setfield(L, -2, "automatic_face_movement_dir");
409 lua_pushboolean(L, prop->backface_culling);
410 lua_setfield(L, -2, "backface_culling");
411 lua_pushnumber(L, prop->glow);
412 lua_setfield(L, -2, "glow");
413 lua_pushlstring(L, prop->nametag.c_str(), prop->nametag.size());
414 lua_setfield(L, -2, "nametag");
415 push_ARGB8(L, prop->nametag_color);
416 lua_setfield(L, -2, "nametag_color");
417 if (prop->nametag_bgcolor) {
418 push_ARGB8(L, prop->nametag_bgcolor.value());
419 lua_setfield(L, -2, "nametag_bgcolor");
421 lua_pushboolean(L, false);
422 lua_setfield(L, -2, "nametag_bgcolor");
424 lua_pushnumber(L, prop->automatic_face_movement_max_rotation_per_sec);
425 lua_setfield(L, -2, "automatic_face_movement_max_rotation_per_sec");
426 lua_pushlstring(L, prop->infotext.c_str(), prop->infotext.size());
427 lua_setfield(L, -2, "infotext");
428 lua_pushboolean(L, prop->static_save);
429 lua_setfield(L, -2, "static_save");
430 lua_pushlstring(L, prop->wield_item.c_str(), prop->wield_item.size());
431 lua_setfield(L, -2, "wield_item");
432 lua_pushnumber(L, prop->zoom_fov);
433 lua_setfield(L, -2, "zoom_fov");
434 lua_pushboolean(L, prop->use_texture_alpha);
435 lua_setfield(L, -2, "use_texture_alpha");
436 lua_pushboolean(L, prop->shaded);
437 lua_setfield(L, -2, "shaded");
438 lua_pushlstring(L, prop->damage_texture_modifier.c_str(), prop->damage_texture_modifier.size());
439 lua_setfield(L, -2, "damage_texture_modifier");
440 lua_pushboolean(L, prop->show_on_minimap);
441 lua_setfield(L, -2, "show_on_minimap");
444 /******************************************************************************/
445 TileDef read_tiledef(lua_State *L, int index, u8 drawtype)
448 index = lua_gettop(L) + 1 + index;
452 bool default_tiling = true;
453 bool default_culling = true;
456 case NDT_PLANTLIKE_ROOTED:
458 default_tiling = false;
459 // "break" is omitted here intentionaly, as PLANTLIKE
460 // FIRELIKE drawtype both should default to having
461 // backface_culling to false.
464 default_culling = false;
470 // key at index -2 and value at index
471 if(lua_isstring(L, index)){
472 // "default_lava.png"
473 tiledef.name = lua_tostring(L, index);
474 tiledef.tileable_vertical = default_tiling;
475 tiledef.tileable_horizontal = default_tiling;
476 tiledef.backface_culling = default_culling;
478 else if(lua_istable(L, index))
480 // name="default_lava.png"
482 getstringfield(L, index, "name", tiledef.name);
483 getstringfield(L, index, "image", tiledef.name); // MaterialSpec compat.
484 tiledef.backface_culling = getboolfield_default(
485 L, index, "backface_culling", default_culling);
486 tiledef.tileable_horizontal = getboolfield_default(
487 L, index, "tileable_horizontal", default_tiling);
488 tiledef.tileable_vertical = getboolfield_default(
489 L, index, "tileable_vertical", default_tiling);
490 std::string align_style;
491 if (getstringfield(L, index, "align_style", align_style)) {
492 if (align_style == "user")
493 tiledef.align_style = ALIGN_STYLE_USER_DEFINED;
494 else if (align_style == "world")
495 tiledef.align_style = ALIGN_STYLE_WORLD;
497 tiledef.align_style = ALIGN_STYLE_NODE;
499 tiledef.scale = getintfield_default(L, index, "scale", 0);
501 lua_getfield(L, index, "color");
502 tiledef.has_color = read_color(L, -1, &tiledef.color);
505 lua_getfield(L, index, "animation");
506 tiledef.animation = read_animation_definition(L, -1);
513 /******************************************************************************/
514 void read_content_features(lua_State *L, ContentFeatures &f, int index)
517 index = lua_gettop(L) + 1 + index;
519 /* Cache existence of some callbacks */
520 lua_getfield(L, index, "on_construct");
521 if(!lua_isnil(L, -1)) f.has_on_construct = true;
523 lua_getfield(L, index, "on_destruct");
524 if(!lua_isnil(L, -1)) f.has_on_destruct = true;
526 lua_getfield(L, index, "after_destruct");
527 if(!lua_isnil(L, -1)) f.has_after_destruct = true;
530 lua_getfield(L, index, "on_rightclick");
531 f.rightclickable = lua_isfunction(L, -1);
535 getstringfield(L, index, "name", f.name);
538 lua_getfield(L, index, "groups");
539 read_groups(L, -1, f.groups);
542 /* Visual definition */
544 f.drawtype = (NodeDrawType)getenumfield(L, index, "drawtype",
545 ScriptApiNode::es_DrawType,NDT_NORMAL);
546 getfloatfield(L, index, "visual_scale", f.visual_scale);
548 /* Meshnode model filename */
549 getstringfield(L, index, "mesh", f.mesh);
552 lua_getfield(L, index, "tiles");
553 // If nil, try the deprecated name "tile_images" instead
554 if(lua_isnil(L, -1)){
556 warn_if_field_exists(L, index, "tile_images",
557 "Deprecated; new name is \"tiles\".");
558 lua_getfield(L, index, "tile_images");
560 if(lua_istable(L, -1)){
561 int table = lua_gettop(L);
564 while(lua_next(L, table) != 0){
565 // Read tiledef from value
566 f.tiledef[i] = read_tiledef(L, -1, f.drawtype);
567 // removes value, keeps key for next iteration
575 // Copy last value to all remaining textures
577 TileDef lasttile = f.tiledef[i-1];
579 f.tiledef[i] = lasttile;
586 // overlay_tiles = {}
587 lua_getfield(L, index, "overlay_tiles");
588 if (lua_istable(L, -1)) {
589 int table = lua_gettop(L);
592 while (lua_next(L, table) != 0) {
593 // Read tiledef from value
594 f.tiledef_overlay[i] = read_tiledef(L, -1, f.drawtype);
595 // removes value, keeps key for next iteration
603 // Copy last value to all remaining textures
605 TileDef lasttile = f.tiledef_overlay[i - 1];
607 f.tiledef_overlay[i] = lasttile;
614 // special_tiles = {}
615 lua_getfield(L, index, "special_tiles");
616 // If nil, try the deprecated name "special_materials" instead
617 if(lua_isnil(L, -1)){
619 warn_if_field_exists(L, index, "special_materials",
620 "Deprecated; new name is \"special_tiles\".");
621 lua_getfield(L, index, "special_materials");
623 if(lua_istable(L, -1)){
624 int table = lua_gettop(L);
627 while(lua_next(L, table) != 0){
628 // Read tiledef from value
629 f.tiledef_special[i] = read_tiledef(L, -1, f.drawtype);
630 // removes value, keeps key for next iteration
633 if(i==CF_SPECIAL_COUNT){
641 /* alpha & use_texture_alpha */
642 // This is a bit complicated due to compatibility
644 f.setDefaultAlphaMode();
646 warn_if_field_exists(L, index, "alpha",
647 "Obsolete, only limited compatibility provided; "
648 "replaced by \"use_texture_alpha\"");
649 if (getintfield_default(L, index, "alpha", 255) != 255)
650 f.alpha = ALPHAMODE_BLEND;
652 lua_getfield(L, index, "use_texture_alpha");
653 if (lua_isboolean(L, -1)) {
654 warn_if_field_exists(L, index, "use_texture_alpha",
655 "Boolean values are deprecated; use the new choices");
656 if (lua_toboolean(L, -1))
657 f.alpha = (f.drawtype == NDT_NORMAL) ? ALPHAMODE_CLIP : ALPHAMODE_BLEND;
658 } else if (check_field_or_nil(L, -1, LUA_TSTRING, "use_texture_alpha")) {
659 int result = f.alpha;
660 string_to_enum(ScriptApiNode::es_TextureAlphaMode, result,
661 std::string(lua_tostring(L, -1)));
662 f.alpha = static_cast<enum AlphaMode>(result);
668 lua_getfield(L, index, "color");
669 read_color(L, -1, &f.color);
672 getstringfield(L, index, "palette", f.palette_name);
674 lua_getfield(L, index, "post_effect_color");
675 read_color(L, -1, &f.post_effect_color);
678 f.param_type = (ContentParamType)getenumfield(L, index, "paramtype",
679 ScriptApiNode::es_ContentParamType, CPT_NONE);
680 f.param_type_2 = (ContentParamType2)getenumfield(L, index, "paramtype2",
681 ScriptApiNode::es_ContentParamType2, CPT2_NONE);
683 if (!f.palette_name.empty() &&
684 !(f.param_type_2 == CPT2_COLOR ||
685 f.param_type_2 == CPT2_COLORED_FACEDIR ||
686 f.param_type_2 == CPT2_COLORED_WALLMOUNTED ||
687 f.param_type_2 == CPT2_COLORED_DEGROTATE))
688 warningstream << "Node " << f.name.c_str()
689 << " has a palette, but not a suitable paramtype2." << std::endl;
691 // True for all ground-like things like stone and mud, false for eg. trees
692 getboolfield(L, index, "is_ground_content", f.is_ground_content);
693 f.light_propagates = (f.param_type == CPT_LIGHT);
694 getboolfield(L, index, "sunlight_propagates", f.sunlight_propagates);
695 // This is used for collision detection.
696 // Also for general solidness queries.
697 getboolfield(L, index, "walkable", f.walkable);
698 // Player can point to these
699 getboolfield(L, index, "pointable", f.pointable);
700 // Player can dig these
701 getboolfield(L, index, "diggable", f.diggable);
702 // Player can climb these
703 getboolfield(L, index, "climbable", f.climbable);
704 // Player can build on these
705 getboolfield(L, index, "buildable_to", f.buildable_to);
706 // Liquids flow into and replace node
707 getboolfield(L, index, "floodable", f.floodable);
708 // Whether the node is non-liquid, source liquid or flowing liquid
709 f.liquid_type = (LiquidType)getenumfield(L, index, "liquidtype",
710 ScriptApiNode::es_LiquidType, LIQUID_NONE);
711 // If the content is liquid, this is the flowing version of the liquid.
712 getstringfield(L, index, "liquid_alternative_flowing",
713 f.liquid_alternative_flowing);
714 // If the content is liquid, this is the source version of the liquid.
715 getstringfield(L, index, "liquid_alternative_source",
716 f.liquid_alternative_source);
717 // Viscosity for fluid flow, ranging from 1 to 7, with
718 // 1 giving almost instantaneous propagation and 7 being
719 // the slowest possible
720 f.liquid_viscosity = getintfield_default(L, index,
721 "liquid_viscosity", f.liquid_viscosity);
722 // If move_resistance is not set explicitly,
723 // move_resistance is equal to liquid_viscosity
724 f.move_resistance = f.liquid_viscosity;
725 f.liquid_range = getintfield_default(L, index,
726 "liquid_range", f.liquid_range);
727 f.leveled = getintfield_default(L, index, "leveled", f.leveled);
728 f.leveled_max = getintfield_default(L, index,
729 "leveled_max", f.leveled_max);
731 getboolfield(L, index, "liquid_renewable", f.liquid_renewable);
732 f.drowning = getintfield_default(L, index,
733 "drowning", f.drowning);
734 // Amount of light the node emits
735 f.light_source = getintfield_default(L, index,
736 "light_source", f.light_source);
737 if (f.light_source > LIGHT_MAX) {
738 warningstream << "Node " << f.name.c_str()
739 << " had greater light_source than " << LIGHT_MAX
740 << ", it was reduced." << std::endl;
741 f.light_source = LIGHT_MAX;
743 f.damage_per_second = getintfield_default(L, index,
744 "damage_per_second", f.damage_per_second);
746 lua_getfield(L, index, "node_box");
747 if(lua_istable(L, -1))
748 f.node_box = read_nodebox(L, -1);
751 lua_getfield(L, index, "connects_to");
752 if (lua_istable(L, -1)) {
753 int table = lua_gettop(L);
755 while (lua_next(L, table) != 0) {
757 f.connects_to.emplace_back(lua_tostring(L, -1));
763 lua_getfield(L, index, "connect_sides");
764 if (lua_istable(L, -1)) {
765 int table = lua_gettop(L);
767 while (lua_next(L, table) != 0) {
769 std::string side(lua_tostring(L, -1));
770 // Note faces are flipped to make checking easier
772 f.connect_sides |= 2;
773 else if (side == "bottom")
774 f.connect_sides |= 1;
775 else if (side == "front")
776 f.connect_sides |= 16;
777 else if (side == "left")
778 f.connect_sides |= 32;
779 else if (side == "back")
780 f.connect_sides |= 4;
781 else if (side == "right")
782 f.connect_sides |= 8;
784 warningstream << "Unknown value for \"connect_sides\": "
785 << side << std::endl;
791 lua_getfield(L, index, "selection_box");
792 if(lua_istable(L, -1))
793 f.selection_box = read_nodebox(L, -1);
796 lua_getfield(L, index, "collision_box");
797 if(lua_istable(L, -1))
798 f.collision_box = read_nodebox(L, -1);
801 f.waving = getintfield_default(L, index,
804 // Set to true if paramtype used to be 'facedir_simple'
805 getboolfield(L, index, "legacy_facedir_simple", f.legacy_facedir_simple);
806 // Set to true if wall_mounted used to be set to true
807 getboolfield(L, index, "legacy_wallmounted", f.legacy_wallmounted);
810 lua_getfield(L, index, "sounds");
811 if(lua_istable(L, -1)){
812 lua_getfield(L, -1, "footstep");
813 read_soundspec(L, -1, f.sound_footstep);
815 lua_getfield(L, -1, "dig");
816 read_soundspec(L, -1, f.sound_dig);
818 lua_getfield(L, -1, "dug");
819 read_soundspec(L, -1, f.sound_dug);
824 // Node immediately placed by client when node is dug
825 getstringfield(L, index, "node_dig_prediction",
826 f.node_dig_prediction);
828 // How much the node slows down players, ranging from 1 to 7,
829 // the higher, the slower.
830 f.move_resistance = getintfield_default(L, index,
831 "move_resistance", f.move_resistance);
833 // Whether e.g. players in this node will have liquid movement physics
834 lua_getfield(L, index, "liquid_move_physics");
835 if(lua_isboolean(L, -1)) {
836 f.liquid_move_physics = lua_toboolean(L, -1);
837 } else if(lua_isnil(L, -1)) {
838 f.liquid_move_physics = f.liquid_type != LIQUID_NONE;
840 errorstream << "Field \"liquid_move_physics\": Invalid type!" << std::endl;
845 void push_content_features(lua_State *L, const ContentFeatures &c)
847 std::string paramtype(ScriptApiNode::es_ContentParamType[(int)c.param_type].str);
848 std::string paramtype2(ScriptApiNode::es_ContentParamType2[(int)c.param_type_2].str);
849 std::string drawtype(ScriptApiNode::es_DrawType[(int)c.drawtype].str);
850 std::string liquid_type(ScriptApiNode::es_LiquidType[(int)c.liquid_type].str);
852 /* Missing "tiles" because I don't see a usecase (at least not yet). */
855 lua_pushboolean(L, c.has_on_construct);
856 lua_setfield(L, -2, "has_on_construct");
857 lua_pushboolean(L, c.has_on_destruct);
858 lua_setfield(L, -2, "has_on_destruct");
859 lua_pushboolean(L, c.has_after_destruct);
860 lua_setfield(L, -2, "has_after_destruct");
861 lua_pushstring(L, c.name.c_str());
862 lua_setfield(L, -2, "name");
863 push_groups(L, c.groups);
864 lua_setfield(L, -2, "groups");
865 lua_pushstring(L, paramtype.c_str());
866 lua_setfield(L, -2, "paramtype");
867 lua_pushstring(L, paramtype2.c_str());
868 lua_setfield(L, -2, "paramtype2");
869 lua_pushstring(L, drawtype.c_str());
870 lua_setfield(L, -2, "drawtype");
871 if (!c.mesh.empty()) {
872 lua_pushstring(L, c.mesh.c_str());
873 lua_setfield(L, -2, "mesh");
876 push_ARGB8(L, c.minimap_color); // I know this is not set-able w/ register_node,
877 lua_setfield(L, -2, "minimap_color"); // but the people need to know!
879 lua_pushnumber(L, c.visual_scale);
880 lua_setfield(L, -2, "visual_scale");
881 lua_pushnumber(L, c.alpha);
882 lua_setfield(L, -2, "alpha");
883 if (!c.palette_name.empty()) {
884 push_ARGB8(L, c.color);
885 lua_setfield(L, -2, "color");
887 lua_pushstring(L, c.palette_name.c_str());
888 lua_setfield(L, -2, "palette_name");
890 push_palette(L, c.palette);
891 lua_setfield(L, -2, "palette");
893 lua_pushnumber(L, c.waving);
894 lua_setfield(L, -2, "waving");
895 lua_pushnumber(L, c.connect_sides);
896 lua_setfield(L, -2, "connect_sides");
898 lua_createtable(L, c.connects_to.size(), 0);
900 for (const std::string &it : c.connects_to) {
901 lua_pushlstring(L, it.c_str(), it.size());
902 lua_rawseti(L, -2, i++);
904 lua_setfield(L, -2, "connects_to");
906 push_ARGB8(L, c.post_effect_color);
907 lua_setfield(L, -2, "post_effect_color");
908 lua_pushnumber(L, c.leveled);
909 lua_setfield(L, -2, "leveled");
910 lua_pushnumber(L, c.leveled_max);
911 lua_setfield(L, -2, "leveled_max");
912 lua_pushboolean(L, c.sunlight_propagates);
913 lua_setfield(L, -2, "sunlight_propagates");
914 lua_pushnumber(L, c.light_source);
915 lua_setfield(L, -2, "light_source");
916 lua_pushboolean(L, c.is_ground_content);
917 lua_setfield(L, -2, "is_ground_content");
918 lua_pushboolean(L, c.walkable);
919 lua_setfield(L, -2, "walkable");
920 lua_pushboolean(L, c.pointable);
921 lua_setfield(L, -2, "pointable");
922 lua_pushboolean(L, c.diggable);
923 lua_setfield(L, -2, "diggable");
924 lua_pushboolean(L, c.climbable);
925 lua_setfield(L, -2, "climbable");
926 lua_pushboolean(L, c.buildable_to);
927 lua_setfield(L, -2, "buildable_to");
928 lua_pushboolean(L, c.rightclickable);
929 lua_setfield(L, -2, "rightclickable");
930 lua_pushnumber(L, c.damage_per_second);
931 lua_setfield(L, -2, "damage_per_second");
933 lua_pushstring(L, liquid_type.c_str());
934 lua_setfield(L, -2, "liquid_type");
935 lua_pushstring(L, c.liquid_alternative_flowing.c_str());
936 lua_setfield(L, -2, "liquid_alternative_flowing");
937 lua_pushstring(L, c.liquid_alternative_source.c_str());
938 lua_setfield(L, -2, "liquid_alternative_source");
939 lua_pushnumber(L, c.liquid_viscosity);
940 lua_setfield(L, -2, "liquid_viscosity");
941 lua_pushboolean(L, c.liquid_renewable);
942 lua_setfield(L, -2, "liquid_renewable");
943 lua_pushnumber(L, c.liquid_range);
944 lua_setfield(L, -2, "liquid_range");
946 lua_pushnumber(L, c.drowning);
947 lua_setfield(L, -2, "drowning");
948 lua_pushboolean(L, c.floodable);
949 lua_setfield(L, -2, "floodable");
950 push_nodebox(L, c.node_box);
951 lua_setfield(L, -2, "node_box");
952 push_nodebox(L, c.selection_box);
953 lua_setfield(L, -2, "selection_box");
954 push_nodebox(L, c.collision_box);
955 lua_setfield(L, -2, "collision_box");
957 push_soundspec(L, c.sound_footstep);
958 lua_setfield(L, -2, "sound_footstep");
959 push_soundspec(L, c.sound_dig);
960 lua_setfield(L, -2, "sound_dig");
961 push_soundspec(L, c.sound_dug);
962 lua_setfield(L, -2, "sound_dug");
963 lua_setfield(L, -2, "sounds");
964 lua_pushboolean(L, c.legacy_facedir_simple);
965 lua_setfield(L, -2, "legacy_facedir_simple");
966 lua_pushboolean(L, c.legacy_wallmounted);
967 lua_setfield(L, -2, "legacy_wallmounted");
968 lua_pushstring(L, c.node_dig_prediction.c_str());
969 lua_setfield(L, -2, "node_dig_prediction");
970 lua_pushnumber(L, c.move_resistance);
971 lua_setfield(L, -2, "move_resistance");
972 lua_pushboolean(L, c.liquid_move_physics);
973 lua_setfield(L, -2, "liquid_move_physics");
976 /******************************************************************************/
977 void push_nodebox(lua_State *L, const NodeBox &box)
982 case NODEBOX_REGULAR:
983 lua_pushstring(L, "regular");
984 lua_setfield(L, -2, "type");
986 case NODEBOX_LEVELED:
988 lua_pushstring(L, "fixed");
989 lua_setfield(L, -2, "type");
990 push_box(L, box.fixed);
991 lua_setfield(L, -2, "fixed");
993 case NODEBOX_WALLMOUNTED:
994 lua_pushstring(L, "wallmounted");
995 lua_setfield(L, -2, "type");
996 push_aabb3f(L, box.wall_top);
997 lua_setfield(L, -2, "wall_top");
998 push_aabb3f(L, box.wall_bottom);
999 lua_setfield(L, -2, "wall_bottom");
1000 push_aabb3f(L, box.wall_side);
1001 lua_setfield(L, -2, "wall_side");
1003 case NODEBOX_CONNECTED:
1004 lua_pushstring(L, "connected");
1005 lua_setfield(L, -2, "type");
1006 push_box(L, box.connect_top);
1007 lua_setfield(L, -2, "connect_top");
1008 push_box(L, box.connect_bottom);
1009 lua_setfield(L, -2, "connect_bottom");
1010 push_box(L, box.connect_front);
1011 lua_setfield(L, -2, "connect_front");
1012 push_box(L, box.connect_back);
1013 lua_setfield(L, -2, "connect_back");
1014 push_box(L, box.connect_left);
1015 lua_setfield(L, -2, "connect_left");
1016 push_box(L, box.connect_right);
1017 lua_setfield(L, -2, "connect_right");
1020 FATAL_ERROR("Invalid box.type");
1025 void push_box(lua_State *L, const std::vector<aabb3f> &box)
1027 lua_createtable(L, box.size(), 0);
1029 for (const aabb3f &it : box) {
1031 lua_rawseti(L, -2, i++);
1035 /******************************************************************************/
1036 void push_palette(lua_State *L, const std::vector<video::SColor> *palette)
1038 lua_createtable(L, palette->size(), 0);
1039 int newTable = lua_gettop(L);
1041 std::vector<video::SColor>::const_iterator iter;
1042 for (iter = palette->begin(); iter != palette->end(); ++iter) {
1043 push_ARGB8(L, (*iter));
1044 lua_rawseti(L, newTable, index);
1049 /******************************************************************************/
1050 void read_server_sound_params(lua_State *L, int index,
1051 ServerSoundParams ¶ms)
1054 index = lua_gettop(L) + 1 + index;
1056 params = ServerSoundParams();
1057 if(lua_istable(L, index)){
1058 getfloatfield(L, index, "gain", params.gain);
1059 getstringfield(L, index, "to_player", params.to_player);
1060 getfloatfield(L, index, "fade", params.fade);
1061 getfloatfield(L, index, "pitch", params.pitch);
1062 lua_getfield(L, index, "pos");
1063 if(!lua_isnil(L, -1)){
1064 v3f p = read_v3f(L, -1)*BS;
1066 params.type = ServerSoundParams::SSP_POSITIONAL;
1069 lua_getfield(L, index, "object");
1070 if(!lua_isnil(L, -1)){
1071 ObjectRef *ref = ObjectRef::checkobject(L, -1);
1072 ServerActiveObject *sao = ObjectRef::getobject(ref);
1074 params.object = sao->getId();
1075 params.type = ServerSoundParams::SSP_OBJECT;
1079 params.max_hear_distance = BS*getfloatfield_default(L, index,
1080 "max_hear_distance", params.max_hear_distance/BS);
1081 getboolfield(L, index, "loop", params.loop);
1082 getstringfield(L, index, "exclude_player", params.exclude_player);
1086 /******************************************************************************/
1087 void read_soundspec(lua_State *L, int index, SimpleSoundSpec &spec)
1090 index = lua_gettop(L) + 1 + index;
1091 if (lua_isnil(L, index))
1094 if (lua_istable(L, index)) {
1095 getstringfield(L, index, "name", spec.name);
1096 getfloatfield(L, index, "gain", spec.gain);
1097 getfloatfield(L, index, "fade", spec.fade);
1098 getfloatfield(L, index, "pitch", spec.pitch);
1099 } else if (lua_isstring(L, index)) {
1100 spec.name = lua_tostring(L, index);
1104 void push_soundspec(lua_State *L, const SimpleSoundSpec &spec)
1106 lua_createtable(L, 0, 3);
1107 lua_pushstring(L, spec.name.c_str());
1108 lua_setfield(L, -2, "name");
1109 lua_pushnumber(L, spec.gain);
1110 lua_setfield(L, -2, "gain");
1111 lua_pushnumber(L, spec.fade);
1112 lua_setfield(L, -2, "fade");
1113 lua_pushnumber(L, spec.pitch);
1114 lua_setfield(L, -2, "pitch");
1117 /******************************************************************************/
1118 NodeBox read_nodebox(lua_State *L, int index)
1121 if (lua_isnil(L, -1))
1124 luaL_checktype(L, -1, LUA_TTABLE);
1126 nodebox.type = (NodeBoxType)getenumfield(L, index, "type",
1127 ScriptApiNode::es_NodeBoxType, NODEBOX_REGULAR);
1129 #define NODEBOXREAD(n, s){ \
1130 lua_getfield(L, index, (s)); \
1131 if (lua_istable(L, -1)) \
1132 (n) = read_aabb3f(L, -1, BS); \
1136 #define NODEBOXREADVEC(n, s) \
1137 lua_getfield(L, index, (s)); \
1138 if (lua_istable(L, -1)) \
1139 (n) = read_aabb3f_vector(L, -1, BS); \
1142 NODEBOXREADVEC(nodebox.fixed, "fixed");
1143 NODEBOXREAD(nodebox.wall_top, "wall_top");
1144 NODEBOXREAD(nodebox.wall_bottom, "wall_bottom");
1145 NODEBOXREAD(nodebox.wall_side, "wall_side");
1146 NODEBOXREADVEC(nodebox.connect_top, "connect_top");
1147 NODEBOXREADVEC(nodebox.connect_bottom, "connect_bottom");
1148 NODEBOXREADVEC(nodebox.connect_front, "connect_front");
1149 NODEBOXREADVEC(nodebox.connect_left, "connect_left");
1150 NODEBOXREADVEC(nodebox.connect_back, "connect_back");
1151 NODEBOXREADVEC(nodebox.connect_right, "connect_right");
1152 NODEBOXREADVEC(nodebox.disconnected_top, "disconnected_top");
1153 NODEBOXREADVEC(nodebox.disconnected_bottom, "disconnected_bottom");
1154 NODEBOXREADVEC(nodebox.disconnected_front, "disconnected_front");
1155 NODEBOXREADVEC(nodebox.disconnected_left, "disconnected_left");
1156 NODEBOXREADVEC(nodebox.disconnected_back, "disconnected_back");
1157 NODEBOXREADVEC(nodebox.disconnected_right, "disconnected_right");
1158 NODEBOXREADVEC(nodebox.disconnected, "disconnected");
1159 NODEBOXREADVEC(nodebox.disconnected_sides, "disconnected_sides");
1164 /******************************************************************************/
1165 MapNode readnode(lua_State *L, int index, const NodeDefManager *ndef)
1167 lua_getfield(L, index, "name");
1168 if (!lua_isstring(L, -1))
1169 throw LuaError("Node name is not set or is not a string!");
1170 std::string name = lua_tostring(L, -1);
1174 lua_getfield(L, index, "param1");
1175 if (!lua_isnil(L, -1))
1176 param1 = lua_tonumber(L, -1);
1180 lua_getfield(L, index, "param2");
1181 if (!lua_isnil(L, -1))
1182 param2 = lua_tonumber(L, -1);
1185 content_t id = CONTENT_IGNORE;
1186 if (!ndef->getId(name, id))
1187 throw LuaError("\"" + name + "\" is not a registered node!");
1189 return {id, param1, param2};
1192 /******************************************************************************/
1193 void pushnode(lua_State *L, const MapNode &n, const NodeDefManager *ndef)
1195 lua_createtable(L, 0, 3);
1196 lua_pushstring(L, ndef->get(n).name.c_str());
1197 lua_setfield(L, -2, "name");
1198 lua_pushinteger(L, n.getParam1());
1199 lua_setfield(L, -2, "param1");
1200 lua_pushinteger(L, n.getParam2());
1201 lua_setfield(L, -2, "param2");
1204 /******************************************************************************/
1205 void warn_if_field_exists(lua_State *L, int table,
1206 const char *name, const std::string &message)
1208 lua_getfield(L, table, name);
1209 if (!lua_isnil(L, -1)) {
1210 warningstream << "Field \"" << name << "\": "
1211 << message << std::endl;
1212 infostream << script_get_backtrace(L) << std::endl;
1217 /******************************************************************************/
1218 int getenumfield(lua_State *L, int table,
1219 const char *fieldname, const EnumString *spec, int default_)
1221 int result = default_;
1222 string_to_enum(spec, result,
1223 getstringfield_default(L, table, fieldname, ""));
1227 /******************************************************************************/
1228 bool string_to_enum(const EnumString *spec, int &result,
1229 const std::string &str)
1231 const EnumString *esp = spec;
1233 if (!strcmp(str.c_str(), esp->str)) {
1242 /******************************************************************************/
1243 ItemStack read_item(lua_State* L, int index, IItemDefManager *idef)
1246 index = lua_gettop(L) + 1 + index;
1248 if (lua_isnil(L, index)) {
1252 if (lua_isuserdata(L, index)) {
1253 // Convert from LuaItemStack
1254 LuaItemStack *o = LuaItemStack::checkobject(L, index);
1255 return o->getItem();
1258 if (lua_isstring(L, index)) {
1259 // Convert from itemstring
1260 std::string itemstring = lua_tostring(L, index);
1264 item.deSerialize(itemstring, idef);
1267 catch(SerializationError &e)
1269 warningstream<<"unable to create item from itemstring"
1270 <<": "<<itemstring<<std::endl;
1274 else if(lua_istable(L, index))
1276 // Convert from table
1277 std::string name = getstringfield_default(L, index, "name", "");
1278 int count = getintfield_default(L, index, "count", 1);
1279 int wear = getintfield_default(L, index, "wear", 0);
1281 ItemStack istack(name, count, wear, idef);
1283 // BACKWARDS COMPATIBLITY
1284 std::string value = getstringfield_default(L, index, "metadata", "");
1285 istack.metadata.setString("", value);
1288 lua_getfield(L, index, "meta");
1289 int fieldstable = lua_gettop(L);
1290 if (lua_istable(L, fieldstable)) {
1292 while (lua_next(L, fieldstable) != 0) {
1293 // key at index -2 and value at index -1
1294 std::string key = lua_tostring(L, -2);
1296 const char *value_cs = lua_tolstring(L, -1, &value_len);
1297 std::string value(value_cs, value_len);
1298 istack.metadata.setString(key, value);
1299 lua_pop(L, 1); // removes value, keeps key for next iteration
1305 throw LuaError("Expecting itemstack, itemstring, table or nil");
1309 /******************************************************************************/
1310 void push_tool_capabilities(lua_State *L,
1311 const ToolCapabilities &toolcap)
1314 setfloatfield(L, -1, "full_punch_interval", toolcap.full_punch_interval);
1315 setintfield(L, -1, "max_drop_level", toolcap.max_drop_level);
1316 setintfield(L, -1, "punch_attack_uses", toolcap.punch_attack_uses);
1317 // Create groupcaps table
1319 // For each groupcap
1320 for (const auto &gc_it : toolcap.groupcaps) {
1321 // Create groupcap table
1323 const std::string &name = gc_it.first;
1324 const ToolGroupCap &groupcap = gc_it.second;
1325 // Create subtable "times"
1327 for (auto time : groupcap.times) {
1328 lua_pushinteger(L, time.first);
1329 lua_pushnumber(L, time.second);
1330 lua_settable(L, -3);
1332 // Set subtable "times"
1333 lua_setfield(L, -2, "times");
1334 // Set simple parameters
1335 setintfield(L, -1, "maxlevel", groupcap.maxlevel);
1336 setintfield(L, -1, "uses", groupcap.uses);
1337 // Insert groupcap table into groupcaps table
1338 lua_setfield(L, -2, name.c_str());
1340 // Set groupcaps table
1341 lua_setfield(L, -2, "groupcaps");
1342 //Create damage_groups table
1344 // For each damage group
1345 for (const auto &damageGroup : toolcap.damageGroups) {
1346 // Create damage group table
1347 lua_pushinteger(L, damageGroup.second);
1348 lua_setfield(L, -2, damageGroup.first.c_str());
1350 lua_setfield(L, -2, "damage_groups");
1353 /******************************************************************************/
1354 void push_inventory_list(lua_State *L, Inventory *inv, const char *name)
1356 InventoryList *invlist = inv->getList(name);
1357 if(invlist == NULL){
1361 std::vector<ItemStack> items;
1362 for(u32 i=0; i<invlist->getSize(); i++)
1363 items.push_back(invlist->getItem(i));
1364 push_items(L, items);
1367 /******************************************************************************/
1368 void read_inventory_list(lua_State *L, int tableindex,
1369 Inventory *inv, const char *name, Server* srv, int forcesize)
1372 tableindex = lua_gettop(L) + 1 + tableindex;
1374 // If nil, delete list
1375 if(lua_isnil(L, tableindex)){
1376 inv->deleteList(name);
1380 // Get Lua-specified items to insert into the list
1381 std::vector<ItemStack> items = read_items(L, tableindex,srv);
1382 size_t listsize = (forcesize >= 0) ? forcesize : items.size();
1384 // Create or resize/clear list
1385 InventoryList *invlist = inv->addList(name, listsize);
1387 luaL_error(L, "inventory list: cannot create list named '%s'", name);
1391 for (size_t i = 0; i < items.size(); ++i) {
1393 break; // Truncate provided list of items
1394 invlist->changeItem(i, items[i]);
1398 /******************************************************************************/
1399 struct TileAnimationParams read_animation_definition(lua_State *L, int index)
1402 index = lua_gettop(L) + 1 + index;
1404 struct TileAnimationParams anim;
1405 anim.type = TAT_NONE;
1406 if (!lua_istable(L, index))
1409 anim.type = (TileAnimationType)
1410 getenumfield(L, index, "type", es_TileAnimationType,
1412 if (anim.type == TAT_VERTICAL_FRAMES) {
1413 // {type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0}
1414 anim.vertical_frames.aspect_w =
1415 getintfield_default(L, index, "aspect_w", 16);
1416 anim.vertical_frames.aspect_h =
1417 getintfield_default(L, index, "aspect_h", 16);
1418 anim.vertical_frames.length =
1419 getfloatfield_default(L, index, "length", 1.0);
1420 } else if (anim.type == TAT_SHEET_2D) {
1421 // {type="sheet_2d", frames_w=5, frames_h=3, frame_length=0.5}
1422 getintfield(L, index, "frames_w",
1423 anim.sheet_2d.frames_w);
1424 getintfield(L, index, "frames_h",
1425 anim.sheet_2d.frames_h);
1426 getfloatfield(L, index, "frame_length",
1427 anim.sheet_2d.frame_length);
1433 /******************************************************************************/
1434 ToolCapabilities read_tool_capabilities(
1435 lua_State *L, int table)
1437 ToolCapabilities toolcap;
1438 getfloatfield(L, table, "full_punch_interval", toolcap.full_punch_interval);
1439 getintfield(L, table, "max_drop_level", toolcap.max_drop_level);
1440 getintfield(L, table, "punch_attack_uses", toolcap.punch_attack_uses);
1441 lua_getfield(L, table, "groupcaps");
1442 if(lua_istable(L, -1)){
1443 int table_groupcaps = lua_gettop(L);
1445 while(lua_next(L, table_groupcaps) != 0){
1446 // key at index -2 and value at index -1
1447 std::string groupname = luaL_checkstring(L, -2);
1448 if(lua_istable(L, -1)){
1449 int table_groupcap = lua_gettop(L);
1450 // This will be created
1451 ToolGroupCap groupcap;
1452 // Read simple parameters
1453 getintfield(L, table_groupcap, "maxlevel", groupcap.maxlevel);
1454 getintfield(L, table_groupcap, "uses", groupcap.uses);
1455 // DEPRECATED: maxwear
1457 if (getfloatfield(L, table_groupcap, "maxwear", maxwear)){
1459 groupcap.uses = 1.0/maxwear;
1462 warningstream << "Field \"maxwear\" is deprecated; "
1463 << "replace with uses=1/maxwear" << std::endl;
1464 infostream << script_get_backtrace(L) << std::endl;
1466 // Read "times" table
1467 lua_getfield(L, table_groupcap, "times");
1468 if(lua_istable(L, -1)){
1469 int table_times = lua_gettop(L);
1471 while(lua_next(L, table_times) != 0){
1472 // key at index -2 and value at index -1
1473 int rating = luaL_checkinteger(L, -2);
1474 float time = luaL_checknumber(L, -1);
1475 groupcap.times[rating] = time;
1476 // removes value, keeps key for next iteration
1481 // Insert groupcap into toolcap
1482 toolcap.groupcaps[groupname] = groupcap;
1484 // removes value, keeps key for next iteration
1490 lua_getfield(L, table, "damage_groups");
1491 if(lua_istable(L, -1)){
1492 int table_damage_groups = lua_gettop(L);
1494 while(lua_next(L, table_damage_groups) != 0){
1495 // key at index -2 and value at index -1
1496 std::string groupname = luaL_checkstring(L, -2);
1497 u16 value = luaL_checkinteger(L, -1);
1498 toolcap.damageGroups[groupname] = value;
1499 // removes value, keeps key for next iteration
1507 /******************************************************************************/
1508 void push_dig_params(lua_State *L,const DigParams ¶ms)
1510 lua_createtable(L, 0, 3);
1511 setboolfield(L, -1, "diggable", params.diggable);
1512 setfloatfield(L, -1, "time", params.time);
1513 setintfield(L, -1, "wear", params.wear);
1516 /******************************************************************************/
1517 void push_hit_params(lua_State *L,const HitParams ¶ms)
1519 lua_createtable(L, 0, 3);
1520 setintfield(L, -1, "hp", params.hp);
1521 setintfield(L, -1, "wear", params.wear);
1524 /******************************************************************************/
1526 bool getflagsfield(lua_State *L, int table, const char *fieldname,
1527 FlagDesc *flagdesc, u32 *flags, u32 *flagmask)
1529 lua_getfield(L, table, fieldname);
1531 bool success = read_flags(L, -1, flagdesc, flags, flagmask);
1538 bool read_flags(lua_State *L, int index, FlagDesc *flagdesc,
1539 u32 *flags, u32 *flagmask)
1541 if (lua_isstring(L, index)) {
1542 std::string flagstr = lua_tostring(L, index);
1543 *flags = readFlagString(flagstr, flagdesc, flagmask);
1544 } else if (lua_istable(L, index)) {
1545 *flags = read_flags_table(L, index, flagdesc, flagmask);
1553 u32 read_flags_table(lua_State *L, int table, FlagDesc *flagdesc, u32 *flagmask)
1555 u32 flags = 0, mask = 0;
1556 char fnamebuf[64] = "no";
1558 for (int i = 0; flagdesc[i].name; i++) {
1561 if (getboolfield(L, table, flagdesc[i].name, result)) {
1562 mask |= flagdesc[i].flag;
1564 flags |= flagdesc[i].flag;
1567 strlcpy(fnamebuf + 2, flagdesc[i].name, sizeof(fnamebuf) - 2);
1568 if (getboolfield(L, table, fnamebuf, result))
1569 mask |= flagdesc[i].flag;
1578 void push_flags_string(lua_State *L, FlagDesc *flagdesc, u32 flags, u32 flagmask)
1580 std::string flagstring = writeFlagString(flags, flagdesc, flagmask);
1581 lua_pushlstring(L, flagstring.c_str(), flagstring.size());
1584 /******************************************************************************/
1585 /* Lua Stored data! */
1586 /******************************************************************************/
1588 /******************************************************************************/
1589 void read_groups(lua_State *L, int index, ItemGroupList &result)
1591 if (lua_isnil(L, index))
1594 luaL_checktype(L, index, LUA_TTABLE);
1600 while (lua_next(L, index) != 0) {
1601 // key at index -2 and value at index -1
1602 std::string name = luaL_checkstring(L, -2);
1603 int rating = luaL_checkinteger(L, -1);
1604 // zero rating indicates not in the group
1606 result[name] = rating;
1607 // removes value, keeps key for next iteration
1612 /******************************************************************************/
1613 void push_groups(lua_State *L, const ItemGroupList &groups)
1615 lua_createtable(L, 0, groups.size());
1616 for (const auto &group : groups) {
1617 lua_pushinteger(L, group.second);
1618 lua_setfield(L, -2, group.first.c_str());
1622 /******************************************************************************/
1623 void push_items(lua_State *L, const std::vector<ItemStack> &items)
1625 lua_createtable(L, items.size(), 0);
1626 for (u32 i = 0; i != items.size(); i++) {
1627 LuaItemStack::create(L, items[i]);
1628 lua_rawseti(L, -2, i + 1);
1632 /******************************************************************************/
1633 std::vector<ItemStack> read_items(lua_State *L, int index, Server *srv)
1636 index = lua_gettop(L) + 1 + index;
1638 std::vector<ItemStack> items;
1639 luaL_checktype(L, index, LUA_TTABLE);
1641 while (lua_next(L, index)) {
1642 s32 key = luaL_checkinteger(L, -2);
1644 throw LuaError("Invalid inventory list index");
1646 if (items.size() < (u32) key) {
1649 items[key - 1] = read_item(L, -1, srv->idef());
1655 /******************************************************************************/
1656 void luaentity_get(lua_State *L, u16 id)
1658 // Get luaentities[i]
1659 lua_getglobal(L, "core");
1660 lua_getfield(L, -1, "luaentities");
1661 luaL_checktype(L, -1, LUA_TTABLE);
1662 lua_pushinteger(L, id);
1663 lua_gettable(L, -2);
1664 lua_remove(L, -2); // Remove luaentities
1665 lua_remove(L, -2); // Remove core
1668 /******************************************************************************/
1669 bool read_noiseparams(lua_State *L, int index, NoiseParams *np)
1672 index = lua_gettop(L) + 1 + index;
1674 if (!lua_istable(L, index))
1677 getfloatfield(L, index, "offset", np->offset);
1678 getfloatfield(L, index, "scale", np->scale);
1679 getfloatfield(L, index, "persist", np->persist);
1680 getfloatfield(L, index, "persistence", np->persist);
1681 getfloatfield(L, index, "lacunarity", np->lacunarity);
1682 getintfield(L, index, "seed", np->seed);
1683 getintfield(L, index, "octaves", np->octaves);
1687 np->flags = getflagsfield(L, index, "flags", flagdesc_noiseparams,
1688 &flags, &flagmask) ? flags : NOISE_FLAG_DEFAULTS;
1690 lua_getfield(L, index, "spread");
1691 np->spread = read_v3f(L, -1);
1697 void push_noiseparams(lua_State *L, NoiseParams *np)
1700 setfloatfield(L, -1, "offset", np->offset);
1701 setfloatfield(L, -1, "scale", np->scale);
1702 setfloatfield(L, -1, "persist", np->persist);
1703 setfloatfield(L, -1, "persistence", np->persist);
1704 setfloatfield(L, -1, "lacunarity", np->lacunarity);
1705 setintfield( L, -1, "seed", np->seed);
1706 setintfield( L, -1, "octaves", np->octaves);
1708 push_flags_string(L, flagdesc_noiseparams, np->flags,
1710 lua_setfield(L, -2, "flags");
1712 push_v3f(L, np->spread);
1713 lua_setfield(L, -2, "spread");
1716 /******************************************************************************/
1717 // Returns depth of json value tree
1718 static int push_json_value_getdepth(const Json::Value &value)
1720 if (!value.isArray() && !value.isObject())
1724 for (const auto &it : value) {
1725 int elemdepth = push_json_value_getdepth(it);
1726 if (elemdepth > maxdepth)
1727 maxdepth = elemdepth;
1729 return maxdepth + 1;
1731 // Recursive function to convert JSON --> Lua table
1732 static bool push_json_value_helper(lua_State *L, const Json::Value &value,
1735 switch(value.type()) {
1736 case Json::nullValue:
1738 lua_pushvalue(L, nullindex);
1740 case Json::intValue:
1741 lua_pushinteger(L, value.asLargestInt());
1743 case Json::uintValue:
1744 lua_pushinteger(L, value.asLargestUInt());
1746 case Json::realValue:
1747 lua_pushnumber(L, value.asDouble());
1749 case Json::stringValue:
1751 const char *str = value.asCString();
1752 lua_pushstring(L, str ? str : "");
1755 case Json::booleanValue:
1756 lua_pushboolean(L, value.asInt());
1758 case Json::arrayValue:
1759 lua_createtable(L, value.size(), 0);
1760 for (Json::Value::const_iterator it = value.begin();
1761 it != value.end(); ++it) {
1762 push_json_value_helper(L, *it, nullindex);
1763 lua_rawseti(L, -2, it.index() + 1);
1766 case Json::objectValue:
1767 lua_createtable(L, 0, value.size());
1768 for (Json::Value::const_iterator it = value.begin();
1769 it != value.end(); ++it) {
1770 #if !defined(JSONCPP_STRING) && (JSONCPP_VERSION_MAJOR < 1 || JSONCPP_VERSION_MINOR < 9)
1771 const char *str = it.memberName();
1772 lua_pushstring(L, str ? str : "");
1774 std::string str = it.name();
1775 lua_pushstring(L, str.c_str());
1777 push_json_value_helper(L, *it, nullindex);
1784 // converts JSON --> Lua table; returns false if lua stack limit exceeded
1785 // nullindex: Lua stack index of value to use in place of JSON null
1786 bool push_json_value(lua_State *L, const Json::Value &value, int nullindex)
1789 nullindex = lua_gettop(L) + 1 + nullindex;
1791 int depth = push_json_value_getdepth(value);
1793 // The maximum number of Lua stack slots used at each recursion level
1794 // of push_json_value_helper is 2, so make sure there a depth * 2 slots
1795 if (lua_checkstack(L, depth * 2))
1796 return push_json_value_helper(L, value, nullindex);
1801 // Converts Lua table --> JSON
1802 void read_json_value(lua_State *L, Json::Value &root, int index, u8 recursion)
1804 if (recursion > 16) {
1805 throw SerializationError("Maximum recursion depth exceeded");
1807 int type = lua_type(L, index);
1808 if (type == LUA_TBOOLEAN) {
1809 root = (bool) lua_toboolean(L, index);
1810 } else if (type == LUA_TNUMBER) {
1811 root = lua_tonumber(L, index);
1812 } else if (type == LUA_TSTRING) {
1814 const char *str = lua_tolstring(L, index, &len);
1815 root = std::string(str, len);
1816 } else if (type == LUA_TTABLE) {
1818 while (lua_next(L, index)) {
1819 // Key is at -2 and value is at -1
1821 read_json_value(L, value, lua_gettop(L), recursion + 1);
1823 Json::ValueType roottype = root.type();
1824 int keytype = lua_type(L, -1);
1825 if (keytype == LUA_TNUMBER) {
1826 lua_Number key = lua_tonumber(L, -1);
1827 if (roottype != Json::nullValue && roottype != Json::arrayValue) {
1828 throw SerializationError("Can't mix array and object values in JSON");
1829 } else if (key < 1) {
1830 throw SerializationError("Can't use zero-based or negative indexes in JSON");
1831 } else if (floor(key) != key) {
1832 throw SerializationError("Can't use indexes with a fractional part in JSON");
1834 root[(Json::ArrayIndex) key - 1] = value;
1835 } else if (keytype == LUA_TSTRING) {
1836 if (roottype != Json::nullValue && roottype != Json::objectValue) {
1837 throw SerializationError("Can't mix array and object values in JSON");
1839 root[lua_tostring(L, -1)] = value;
1841 throw SerializationError("Lua key to convert to JSON is not a string or number");
1844 } else if (type == LUA_TNIL) {
1845 root = Json::nullValue;
1847 throw SerializationError("Can only store booleans, numbers, strings, objects, arrays, and null in JSON");
1849 lua_pop(L, 1); // Pop value
1852 void push_pointed_thing(lua_State *L, const PointedThing &pointed, bool csm,
1856 if (pointed.type == POINTEDTHING_NODE) {
1857 lua_pushstring(L, "node");
1858 lua_setfield(L, -2, "type");
1859 push_v3s16(L, pointed.node_undersurface);
1860 lua_setfield(L, -2, "under");
1861 push_v3s16(L, pointed.node_abovesurface);
1862 lua_setfield(L, -2, "above");
1863 } else if (pointed.type == POINTEDTHING_OBJECT) {
1864 lua_pushstring(L, "object");
1865 lua_setfield(L, -2, "type");
1868 lua_pushinteger(L, pointed.object_id);
1869 lua_setfield(L, -2, "id");
1871 push_objectRef(L, pointed.object_id);
1872 lua_setfield(L, -2, "ref");
1875 lua_pushstring(L, "nothing");
1876 lua_setfield(L, -2, "type");
1878 if (hitpoint && (pointed.type != POINTEDTHING_NOTHING)) {
1879 push_v3f(L, pointed.intersection_point / BS); // convert to node coords
1880 lua_setfield(L, -2, "intersection_point");
1881 push_v3s16(L, pointed.intersection_normal);
1882 lua_setfield(L, -2, "intersection_normal");
1883 lua_pushinteger(L, pointed.box_id + 1); // change to Lua array index
1884 lua_setfield(L, -2, "box_id");
1888 void push_objectRef(lua_State *L, const u16 id)
1890 // Get core.object_refs[i]
1891 lua_getglobal(L, "core");
1892 lua_getfield(L, -1, "object_refs");
1893 luaL_checktype(L, -1, LUA_TTABLE);
1894 lua_pushinteger(L, id);
1895 lua_gettable(L, -2);
1896 lua_remove(L, -2); // object_refs
1897 lua_remove(L, -2); // core
1900 void read_hud_element(lua_State *L, HudElement *elem)
1902 elem->type = (HudElementType)getenumfield(L, 2, "hud_elem_type",
1903 es_HudElementType, HUD_ELEM_TEXT);
1905 lua_getfield(L, 2, "position");
1906 elem->pos = lua_istable(L, -1) ? read_v2f(L, -1) : v2f();
1909 lua_getfield(L, 2, "scale");
1910 elem->scale = lua_istable(L, -1) ? read_v2f(L, -1) : v2f();
1913 lua_getfield(L, 2, "size");
1914 elem->size = lua_istable(L, -1) ? read_v2s32(L, -1) : v2s32();
1917 elem->name = getstringfield_default(L, 2, "name", "");
1918 elem->text = getstringfield_default(L, 2, "text", "");
1919 elem->number = getintfield_default(L, 2, "number", 0);
1920 if (elem->type == HUD_ELEM_WAYPOINT)
1921 // waypoints reuse the item field to store precision, item = precision + 1
1922 elem->item = getintfield_default(L, 2, "precision", -1) + 1;
1924 elem->item = getintfield_default(L, 2, "item", 0);
1925 elem->dir = getintfield_default(L, 2, "direction", 0);
1926 elem->z_index = MYMAX(S16_MIN, MYMIN(S16_MAX,
1927 getintfield_default(L, 2, "z_index", 0)));
1928 elem->text2 = getstringfield_default(L, 2, "text2", "");
1930 // Deprecated, only for compatibility's sake
1932 elem->dir = getintfield_default(L, 2, "dir", 0);
1934 lua_getfield(L, 2, "alignment");
1935 elem->align = lua_istable(L, -1) ? read_v2f(L, -1) : v2f();
1938 lua_getfield(L, 2, "offset");
1939 elem->offset = lua_istable(L, -1) ? read_v2f(L, -1) : v2f();
1942 lua_getfield(L, 2, "world_pos");
1943 elem->world_pos = lua_istable(L, -1) ? read_v3f(L, -1) : v3f();
1946 elem->style = getintfield_default(L, 2, "style", 0);
1948 /* check for known deprecated element usage */
1949 if ((elem->type == HUD_ELEM_STATBAR) && (elem->size == v2s32()))
1950 log_deprecated(L,"Deprecated usage of statbar without size!");
1953 void push_hud_element(lua_State *L, HudElement *elem)
1957 lua_pushstring(L, es_HudElementType[(u8)elem->type].str);
1958 lua_setfield(L, -2, "type");
1960 push_v2f(L, elem->pos);
1961 lua_setfield(L, -2, "position");
1963 lua_pushstring(L, elem->name.c_str());
1964 lua_setfield(L, -2, "name");
1966 push_v2f(L, elem->scale);
1967 lua_setfield(L, -2, "scale");
1969 lua_pushstring(L, elem->text.c_str());
1970 lua_setfield(L, -2, "text");
1972 lua_pushnumber(L, elem->number);
1973 lua_setfield(L, -2, "number");
1975 lua_pushnumber(L, elem->item);
1976 lua_setfield(L, -2, "item");
1978 lua_pushnumber(L, elem->dir);
1979 lua_setfield(L, -2, "direction");
1981 push_v2f(L, elem->offset);
1982 lua_setfield(L, -2, "offset");
1984 push_v2f(L, elem->align);
1985 lua_setfield(L, -2, "alignment");
1987 push_v2s32(L, elem->size);
1988 lua_setfield(L, -2, "size");
1990 // Deprecated, only for compatibility's sake
1991 lua_pushnumber(L, elem->dir);
1992 lua_setfield(L, -2, "dir");
1994 push_v3f(L, elem->world_pos);
1995 lua_setfield(L, -2, "world_pos");
1997 lua_pushnumber(L, elem->z_index);
1998 lua_setfield(L, -2, "z_index");
2000 lua_pushstring(L, elem->text2.c_str());
2001 lua_setfield(L, -2, "text2");
2003 lua_pushinteger(L, elem->style);
2004 lua_setfield(L, -2, "style");
2007 bool read_hud_change(lua_State *L, HudElementStat &stat, HudElement *elem, void **value)
2009 std::string statstr = lua_tostring(L, 3);
2012 if (!string_to_enum(es_HudElementStat, statint, statstr)) {
2013 script_log_unique(L, "Unknown HUD stat type: " + statstr, warningstream);
2017 stat = (HudElementStat)statint;
2022 elem->pos = read_v2f(L, 4);
2023 *value = &elem->pos;
2026 elem->name = luaL_checkstring(L, 4);
2027 *value = &elem->name;
2029 case HUD_STAT_SCALE:
2030 elem->scale = read_v2f(L, 4);
2031 *value = &elem->scale;
2034 elem->text = luaL_checkstring(L, 4);
2035 *value = &elem->text;
2037 case HUD_STAT_NUMBER:
2038 elem->number = luaL_checknumber(L, 4);
2039 *value = &elem->number;
2042 elem->item = luaL_checknumber(L, 4);
2043 if (elem->type == HUD_ELEM_WAYPOINT && statstr == "precision")
2045 *value = &elem->item;
2048 elem->dir = luaL_checknumber(L, 4);
2049 *value = &elem->dir;
2051 case HUD_STAT_ALIGN:
2052 elem->align = read_v2f(L, 4);
2053 *value = &elem->align;
2055 case HUD_STAT_OFFSET:
2056 elem->offset = read_v2f(L, 4);
2057 *value = &elem->offset;
2059 case HUD_STAT_WORLD_POS:
2060 elem->world_pos = read_v3f(L, 4);
2061 *value = &elem->world_pos;
2064 elem->size = read_v2s32(L, 4);
2065 *value = &elem->size;
2067 case HUD_STAT_Z_INDEX:
2068 elem->z_index = MYMAX(S16_MIN, MYMIN(S16_MAX, luaL_checknumber(L, 4)));
2069 *value = &elem->z_index;
2071 case HUD_STAT_TEXT2:
2072 elem->text2 = luaL_checkstring(L, 4);
2073 *value = &elem->text2;
2075 case HUD_STAT_STYLE:
2076 elem->style = luaL_checknumber(L, 4);
2077 *value = &elem->style;
2084 /******************************************************************************/
2086 // Indices must match values in `enum CollisionType` exactly!!
2087 static const char *collision_type_str[] = {
2092 // Indices must match values in `enum CollisionAxis` exactly!!
2093 static const char *collision_axis_str[] = {
2099 void push_collision_move_result(lua_State *L, const collisionMoveResult &res)
2101 lua_createtable(L, 0, 4);
2103 setboolfield(L, -1, "touching_ground", res.touching_ground);
2104 setboolfield(L, -1, "collides", res.collides);
2105 setboolfield(L, -1, "standing_on_object", res.standing_on_object);
2108 lua_createtable(L, res.collisions.size(), 0);
2110 for (const auto &c : res.collisions) {
2111 lua_createtable(L, 0, 5);
2113 lua_pushstring(L, collision_type_str[c.type]);
2114 lua_setfield(L, -2, "type");
2116 assert(c.axis != COLLISION_AXIS_NONE);
2117 lua_pushstring(L, collision_axis_str[c.axis]);
2118 lua_setfield(L, -2, "axis");
2120 if (c.type == COLLISION_NODE) {
2121 push_v3s16(L, c.node_p);
2122 lua_setfield(L, -2, "node_pos");
2123 } else if (c.type == COLLISION_OBJECT) {
2124 push_objectRef(L, c.object->getId());
2125 lua_setfield(L, -2, "object");
2128 push_v3f(L, c.old_speed / BS);
2129 lua_setfield(L, -2, "old_velocity");
2131 push_v3f(L, c.new_speed / BS);
2132 lua_setfield(L, -2, "new_velocity");
2134 lua_rawseti(L, -2, i++);
2136 lua_setfield(L, -2, "collisions");