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-rw-r--r--src/script/common/c_content.cpp923
1 files changed, 923 insertions, 0 deletions
diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
new file mode 100644
index 000000000..c7966a0be
--- /dev/null
+++ b/src/script/common/c_content.cpp
@@ -0,0 +1,923 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include "common/c_content.h"
+#include "common/c_converter.h"
+#include "common/c_types.h"
+#include "nodedef.h"
+#include "itemdef.h"
+#include "object_properties.h"
+#include "cpp_api/s_node.h"
+#include "lua_api/l_object.h"
+#include "lua_api/l_item.h"
+#include "common/c_internal.h"
+#include "server.h"
+#include "log.h"
+#include "tool.h"
+#include "server.h"
+
+struct EnumString es_TileAnimationType[] =
+{
+ {TAT_NONE, "none"},
+ {TAT_VERTICAL_FRAMES, "vertical_frames"},
+ {0, NULL},
+};
+
+/******************************************************************************/
+ItemDefinition read_item_definition(lua_State* L,int index,
+ ItemDefinition default_def)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ // Read the item definition
+ ItemDefinition def = default_def;
+
+ def.type = (ItemType)getenumfield(L, index, "type",
+ es_ItemType, ITEM_NONE);
+ getstringfield(L, index, "name", def.name);
+ getstringfield(L, index, "description", def.description);
+ getstringfield(L, index, "inventory_image", def.inventory_image);
+ getstringfield(L, index, "wield_image", def.wield_image);
+
+ lua_getfield(L, index, "wield_scale");
+ if(lua_istable(L, -1)){
+ def.wield_scale = check_v3f(L, -1);
+ }
+ lua_pop(L, 1);
+
+ def.stack_max = getintfield_default(L, index, "stack_max", def.stack_max);
+ if(def.stack_max == 0)
+ def.stack_max = 1;
+
+ lua_getfield(L, index, "on_use");
+ def.usable = lua_isfunction(L, -1);
+ lua_pop(L, 1);
+
+ getboolfield(L, index, "liquids_pointable", def.liquids_pointable);
+
+ warn_if_field_exists(L, index, "tool_digging_properties",
+ "deprecated: use tool_capabilities");
+
+ lua_getfield(L, index, "tool_capabilities");
+ if(lua_istable(L, -1)){
+ def.tool_capabilities = new ToolCapabilities(
+ read_tool_capabilities(L, -1));
+ }
+
+ // If name is "" (hand), ensure there are ToolCapabilities
+ // because it will be looked up there whenever any other item has
+ // no ToolCapabilities
+ if(def.name == "" && def.tool_capabilities == NULL){
+ def.tool_capabilities = new ToolCapabilities();
+ }
+
+ lua_getfield(L, index, "groups");
+ read_groups(L, -1, def.groups);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "sounds");
+ if(lua_istable(L, -1)){
+ lua_getfield(L, -1, "place");
+ read_soundspec(L, -1, def.sound_place);
+ lua_pop(L, 1);
+ }
+ lua_pop(L, 1);
+
+ // Client shall immediately place this node when player places the item.
+ // Server will update the precise end result a moment later.
+ // "" = no prediction
+ getstringfield(L, index, "node_placement_prediction",
+ def.node_placement_prediction);
+
+ return def;
+}
+
+/******************************************************************************/
+void read_object_properties(lua_State *L, int index,
+ ObjectProperties *prop)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+ if(!lua_istable(L, index))
+ return;
+
+ prop->hp_max = getintfield_default(L, -1, "hp_max", 10);
+
+ getboolfield(L, -1, "physical", prop->physical);
+
+ getfloatfield(L, -1, "weight", prop->weight);
+
+ lua_getfield(L, -1, "collisionbox");
+ if(lua_istable(L, -1))
+ prop->collisionbox = read_aabb3f(L, -1, 1.0);
+ lua_pop(L, 1);
+
+ getstringfield(L, -1, "visual", prop->visual);
+
+ getstringfield(L, -1, "mesh", prop->mesh);
+
+ lua_getfield(L, -1, "visual_size");
+ if(lua_istable(L, -1))
+ prop->visual_size = read_v2f(L, -1);
+ lua_pop(L, 1);
+
+ lua_getfield(L, -1, "textures");
+ if(lua_istable(L, -1)){
+ prop->textures.clear();
+ int table = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, table) != 0){
+ // key at index -2 and value at index -1
+ if(lua_isstring(L, -1))
+ prop->textures.push_back(lua_tostring(L, -1));
+ else
+ prop->textures.push_back("");
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+
+ lua_getfield(L, -1, "colors");
+ if(lua_istable(L, -1)){
+ prop->colors.clear();
+ int table = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, table) != 0){
+ // key at index -2 and value at index -1
+ if(lua_isstring(L, -1))
+ prop->colors.push_back(readARGB8(L, -1));
+ else
+ prop->colors.push_back(video::SColor(255, 255, 255, 255));
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+
+ lua_getfield(L, -1, "spritediv");
+ if(lua_istable(L, -1))
+ prop->spritediv = read_v2s16(L, -1);
+ lua_pop(L, 1);
+
+ lua_getfield(L, -1, "initial_sprite_basepos");
+ if(lua_istable(L, -1))
+ prop->initial_sprite_basepos = read_v2s16(L, -1);
+ lua_pop(L, 1);
+
+ getboolfield(L, -1, "is_visible", prop->is_visible);
+ getboolfield(L, -1, "makes_footstep_sound", prop->makes_footstep_sound);
+ getfloatfield(L, -1, "automatic_rotate", prop->automatic_rotate);
+}
+
+/******************************************************************************/
+TileDef read_tiledef(lua_State *L, int index)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ TileDef tiledef;
+
+ // key at index -2 and value at index
+ if(lua_isstring(L, index)){
+ // "default_lava.png"
+ tiledef.name = lua_tostring(L, index);
+ }
+ else if(lua_istable(L, index))
+ {
+ // {name="default_lava.png", animation={}}
+ tiledef.name = "";
+ getstringfield(L, index, "name", tiledef.name);
+ getstringfield(L, index, "image", tiledef.name); // MaterialSpec compat.
+ tiledef.backface_culling = getboolfield_default(
+ L, index, "backface_culling", true);
+ // animation = {}
+ lua_getfield(L, index, "animation");
+ if(lua_istable(L, -1)){
+ // {type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0}
+ tiledef.animation.type = (TileAnimationType)
+ getenumfield(L, -1, "type", es_TileAnimationType,
+ TAT_NONE);
+ tiledef.animation.aspect_w =
+ getintfield_default(L, -1, "aspect_w", 16);
+ tiledef.animation.aspect_h =
+ getintfield_default(L, -1, "aspect_h", 16);
+ tiledef.animation.length =
+ getfloatfield_default(L, -1, "length", 1.0);
+ }
+ lua_pop(L, 1);
+ }
+
+ return tiledef;
+}
+
+/******************************************************************************/
+ContentFeatures read_content_features(lua_State *L, int index)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ ContentFeatures f;
+
+ /* Cache existence of some callbacks */
+ lua_getfield(L, index, "on_construct");
+ if(!lua_isnil(L, -1)) f.has_on_construct = true;
+ lua_pop(L, 1);
+ lua_getfield(L, index, "on_destruct");
+ if(!lua_isnil(L, -1)) f.has_on_destruct = true;
+ lua_pop(L, 1);
+ lua_getfield(L, index, "after_destruct");
+ if(!lua_isnil(L, -1)) f.has_after_destruct = true;
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "on_rightclick");
+ f.rightclickable = lua_isfunction(L, -1);
+ lua_pop(L, 1);
+
+ /* Name */
+ getstringfield(L, index, "name", f.name);
+
+ /* Groups */
+ lua_getfield(L, index, "groups");
+ read_groups(L, -1, f.groups);
+ lua_pop(L, 1);
+
+ /* Visual definition */
+
+ f.drawtype = (NodeDrawType)getenumfield(L, index, "drawtype",
+ ScriptApiNode::es_DrawType,NDT_NORMAL);
+ getfloatfield(L, index, "visual_scale", f.visual_scale);
+
+ // tiles = {}
+ lua_getfield(L, index, "tiles");
+ // If nil, try the deprecated name "tile_images" instead
+ if(lua_isnil(L, -1)){
+ lua_pop(L, 1);
+ warn_if_field_exists(L, index, "tile_images",
+ "Deprecated; new name is \"tiles\".");
+ lua_getfield(L, index, "tile_images");
+ }
+ if(lua_istable(L, -1)){
+ int table = lua_gettop(L);
+ lua_pushnil(L);
+ int i = 0;
+ while(lua_next(L, table) != 0){
+ // Read tiledef from value
+ f.tiledef[i] = read_tiledef(L, -1);
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ i++;
+ if(i==6){
+ lua_pop(L, 1);
+ break;
+ }
+ }
+ // Copy last value to all remaining textures
+ if(i >= 1){
+ TileDef lasttile = f.tiledef[i-1];
+ while(i < 6){
+ f.tiledef[i] = lasttile;
+ i++;
+ }
+ }
+ }
+ lua_pop(L, 1);
+
+ // special_tiles = {}
+ lua_getfield(L, index, "special_tiles");
+ // If nil, try the deprecated name "special_materials" instead
+ if(lua_isnil(L, -1)){
+ lua_pop(L, 1);
+ warn_if_field_exists(L, index, "special_materials",
+ "Deprecated; new name is \"special_tiles\".");
+ lua_getfield(L, index, "special_materials");
+ }
+ if(lua_istable(L, -1)){
+ int table = lua_gettop(L);
+ lua_pushnil(L);
+ int i = 0;
+ while(lua_next(L, table) != 0){
+ // Read tiledef from value
+ f.tiledef_special[i] = read_tiledef(L, -1);
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ i++;
+ if(i==6){
+ lua_pop(L, 1);
+ break;
+ }
+ }
+ }
+ lua_pop(L, 1);
+
+ f.alpha = getintfield_default(L, index, "alpha", 255);
+
+ bool usealpha = getboolfield_default(L, index,
+ "use_texture_alpha", false);
+ if (usealpha)
+ f.alpha = 0;
+
+ /* Other stuff */
+
+ lua_getfield(L, index, "post_effect_color");
+ if(!lua_isnil(L, -1))
+ f.post_effect_color = readARGB8(L, -1);
+ lua_pop(L, 1);
+
+ f.param_type = (ContentParamType)getenumfield(L, index, "paramtype",
+ ScriptApiNode::es_ContentParamType, CPT_NONE);
+ f.param_type_2 = (ContentParamType2)getenumfield(L, index, "paramtype2",
+ ScriptApiNode::es_ContentParamType2, CPT2_NONE);
+
+ // Warn about some deprecated fields
+ warn_if_field_exists(L, index, "wall_mounted",
+ "deprecated: use paramtype2 = 'wallmounted'");
+ warn_if_field_exists(L, index, "light_propagates",
+ "deprecated: determined from paramtype");
+ warn_if_field_exists(L, index, "dug_item",
+ "deprecated: use 'drop' field");
+ warn_if_field_exists(L, index, "extra_dug_item",
+ "deprecated: use 'drop' field");
+ warn_if_field_exists(L, index, "extra_dug_item_rarity",
+ "deprecated: use 'drop' field");
+ warn_if_field_exists(L, index, "metadata_name",
+ "deprecated: use on_add and metadata callbacks");
+
+ // True for all ground-like things like stone and mud, false for eg. trees
+ getboolfield(L, index, "is_ground_content", f.is_ground_content);
+ f.light_propagates = (f.param_type == CPT_LIGHT);
+ getboolfield(L, index, "sunlight_propagates", f.sunlight_propagates);
+ // This is used for collision detection.
+ // Also for general solidness queries.
+ getboolfield(L, index, "walkable", f.walkable);
+ // Player can point to these
+ getboolfield(L, index, "pointable", f.pointable);
+ // Player can dig these
+ getboolfield(L, index, "diggable", f.diggable);
+ // Player can climb these
+ getboolfield(L, index, "climbable", f.climbable);
+ // Player can build on these
+ getboolfield(L, index, "buildable_to", f.buildable_to);
+ // Whether the node is non-liquid, source liquid or flowing liquid
+ f.liquid_type = (LiquidType)getenumfield(L, index, "liquidtype",
+ ScriptApiNode::es_LiquidType, LIQUID_NONE);
+ // If the content is liquid, this is the flowing version of the liquid.
+ getstringfield(L, index, "liquid_alternative_flowing",
+ f.liquid_alternative_flowing);
+ // If the content is liquid, this is the source version of the liquid.
+ getstringfield(L, index, "liquid_alternative_source",
+ f.liquid_alternative_source);
+ // Viscosity for fluid flow, ranging from 1 to 7, with
+ // 1 giving almost instantaneous propagation and 7 being
+ // the slowest possible
+ f.liquid_viscosity = getintfield_default(L, index,
+ "liquid_viscosity", f.liquid_viscosity);
+ getboolfield(L, index, "liquid_renewable", f.liquid_renewable);
+ // Amount of light the node emits
+ f.light_source = getintfield_default(L, index,
+ "light_source", f.light_source);
+ f.damage_per_second = getintfield_default(L, index,
+ "damage_per_second", f.damage_per_second);
+
+ lua_getfield(L, index, "node_box");
+ if(lua_istable(L, -1))
+ f.node_box = read_nodebox(L, -1);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "selection_box");
+ if(lua_istable(L, -1))
+ f.selection_box = read_nodebox(L, -1);
+ lua_pop(L, 1);
+
+ // Set to true if paramtype used to be 'facedir_simple'
+ getboolfield(L, index, "legacy_facedir_simple", f.legacy_facedir_simple);
+ // Set to true if wall_mounted used to be set to true
+ getboolfield(L, index, "legacy_wallmounted", f.legacy_wallmounted);
+
+ // Sound table
+ lua_getfield(L, index, "sounds");
+ if(lua_istable(L, -1)){
+ lua_getfield(L, -1, "footstep");
+ read_soundspec(L, -1, f.sound_footstep);
+ lua_pop(L, 1);
+ lua_getfield(L, -1, "dig");
+ read_soundspec(L, -1, f.sound_dig);
+ lua_pop(L, 1);
+ lua_getfield(L, -1, "dug");
+ read_soundspec(L, -1, f.sound_dug);
+ lua_pop(L, 1);
+ }
+ lua_pop(L, 1);
+
+ return f;
+}
+
+/******************************************************************************/
+void read_server_sound_params(lua_State *L, int index,
+ ServerSoundParams &params)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+ // Clear
+ params = ServerSoundParams();
+ if(lua_istable(L, index)){
+ getfloatfield(L, index, "gain", params.gain);
+ getstringfield(L, index, "to_player", params.to_player);
+ lua_getfield(L, index, "pos");
+ if(!lua_isnil(L, -1)){
+ v3f p = read_v3f(L, -1)*BS;
+ params.pos = p;
+ params.type = ServerSoundParams::SSP_POSITIONAL;
+ }
+ lua_pop(L, 1);
+ lua_getfield(L, index, "object");
+ if(!lua_isnil(L, -1)){
+ ObjectRef *ref = ObjectRef::checkobject(L, -1);
+ ServerActiveObject *sao = ObjectRef::getobject(ref);
+ if(sao){
+ params.object = sao->getId();
+ params.type = ServerSoundParams::SSP_OBJECT;
+ }
+ }
+ lua_pop(L, 1);
+ params.max_hear_distance = BS*getfloatfield_default(L, index,
+ "max_hear_distance", params.max_hear_distance/BS);
+ getboolfield(L, index, "loop", params.loop);
+ }
+}
+
+/******************************************************************************/
+void read_soundspec(lua_State *L, int index, SimpleSoundSpec &spec)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+ if(lua_isnil(L, index)){
+ } else if(lua_istable(L, index)){
+ getstringfield(L, index, "name", spec.name);
+ getfloatfield(L, index, "gain", spec.gain);
+ } else if(lua_isstring(L, index)){
+ spec.name = lua_tostring(L, index);
+ }
+}
+
+/******************************************************************************/
+NodeBox read_nodebox(lua_State *L, int index)
+{
+ NodeBox nodebox;
+ if(lua_istable(L, -1)){
+ nodebox.type = (NodeBoxType)getenumfield(L, index, "type",
+ ScriptApiNode::es_NodeBoxType, NODEBOX_REGULAR);
+
+ lua_getfield(L, index, "fixed");
+ if(lua_istable(L, -1))
+ nodebox.fixed = read_aabb3f_vector(L, -1, BS);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "wall_top");
+ if(lua_istable(L, -1))
+ nodebox.wall_top = read_aabb3f(L, -1, BS);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "wall_bottom");
+ if(lua_istable(L, -1))
+ nodebox.wall_bottom = read_aabb3f(L, -1, BS);
+ lua_pop(L, 1);
+
+ lua_getfield(L, index, "wall_side");
+ if(lua_istable(L, -1))
+ nodebox.wall_side = read_aabb3f(L, -1, BS);
+ lua_pop(L, 1);
+ }
+ return nodebox;
+}
+
+/******************************************************************************/
+MapNode readnode(lua_State *L, int index, INodeDefManager *ndef)
+{
+ lua_getfield(L, index, "name");
+ const char *name = luaL_checkstring(L, -1);
+ lua_pop(L, 1);
+ u8 param1;
+ lua_getfield(L, index, "param1");
+ if(lua_isnil(L, -1))
+ param1 = 0;
+ else
+ param1 = lua_tonumber(L, -1);
+ lua_pop(L, 1);
+ u8 param2;
+ lua_getfield(L, index, "param2");
+ if(lua_isnil(L, -1))
+ param2 = 0;
+ else
+ param2 = lua_tonumber(L, -1);
+ lua_pop(L, 1);
+ return MapNode(ndef, name, param1, param2);
+}
+
+/******************************************************************************/
+void pushnode(lua_State *L, const MapNode &n, INodeDefManager *ndef)
+{
+ lua_newtable(L);
+ lua_pushstring(L, ndef->get(n).name.c_str());
+ lua_setfield(L, -2, "name");
+ lua_pushnumber(L, n.getParam1());
+ lua_setfield(L, -2, "param1");
+ lua_pushnumber(L, n.getParam2());
+ lua_setfield(L, -2, "param2");
+}
+
+/******************************************************************************/
+void warn_if_field_exists(lua_State *L, int table,
+ const char *fieldname, const std::string &message)
+{
+ lua_getfield(L, table, fieldname);
+ if(!lua_isnil(L, -1)){
+//TODO find way to access backtrace fct from here
+ // infostream<<script_get_backtrace(L)<<std::endl;
+ infostream<<"WARNING: field \""<<fieldname<<"\": "
+ <<message<<std::endl;
+ }
+ lua_pop(L, 1);
+}
+
+/******************************************************************************/
+int getenumfield(lua_State *L, int table,
+ const char *fieldname, const EnumString *spec, int default_)
+{
+ int result = default_;
+ string_to_enum(spec, result,
+ getstringfield_default(L, table, fieldname, ""));
+ return result;
+}
+
+/******************************************************************************/
+bool string_to_enum(const EnumString *spec, int &result,
+ const std::string &str)
+{
+ const EnumString *esp = spec;
+ while(esp->str){
+ if(str == std::string(esp->str)){
+ result = esp->num;
+ return true;
+ }
+ esp++;
+ }
+ return false;
+}
+
+/******************************************************************************/
+ItemStack read_item(lua_State* L, int index,Server* srv)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ if(lua_isnil(L, index))
+ {
+ return ItemStack();
+ }
+ else if(lua_isuserdata(L, index))
+ {
+ // Convert from LuaItemStack
+ LuaItemStack *o = LuaItemStack::checkobject(L, index);
+ return o->getItem();
+ }
+ else if(lua_isstring(L, index))
+ {
+ // Convert from itemstring
+ std::string itemstring = lua_tostring(L, index);
+ IItemDefManager *idef = srv->idef();
+ try
+ {
+ ItemStack item;
+ item.deSerialize(itemstring, idef);
+ return item;
+ }
+ catch(SerializationError &e)
+ {
+ infostream<<"WARNING: unable to create item from itemstring"
+ <<": "<<itemstring<<std::endl;
+ return ItemStack();
+ }
+ }
+ else if(lua_istable(L, index))
+ {
+ // Convert from table
+ IItemDefManager *idef = srv->idef();
+ std::string name = getstringfield_default(L, index, "name", "");
+ int count = getintfield_default(L, index, "count", 1);
+ int wear = getintfield_default(L, index, "wear", 0);
+ std::string metadata = getstringfield_default(L, index, "metadata", "");
+ return ItemStack(name, count, wear, metadata, idef);
+ }
+ else
+ {
+ throw LuaError(L, "Expecting itemstack, itemstring, table or nil");
+ }
+}
+
+/******************************************************************************/
+void push_tool_capabilities(lua_State *L,
+ const ToolCapabilities &toolcap)
+{
+ lua_newtable(L);
+ setfloatfield(L, -1, "full_punch_interval", toolcap.full_punch_interval);
+ setintfield(L, -1, "max_drop_level", toolcap.max_drop_level);
+ // Create groupcaps table
+ lua_newtable(L);
+ // For each groupcap
+ for(std::map<std::string, ToolGroupCap>::const_iterator
+ i = toolcap.groupcaps.begin(); i != toolcap.groupcaps.end(); i++){
+ // Create groupcap table
+ lua_newtable(L);
+ const std::string &name = i->first;
+ const ToolGroupCap &groupcap = i->second;
+ // Create subtable "times"
+ lua_newtable(L);
+ for(std::map<int, float>::const_iterator
+ i = groupcap.times.begin(); i != groupcap.times.end(); i++){
+ int rating = i->first;
+ float time = i->second;
+ lua_pushinteger(L, rating);
+ lua_pushnumber(L, time);
+ lua_settable(L, -3);
+ }
+ // Set subtable "times"
+ lua_setfield(L, -2, "times");
+ // Set simple parameters
+ setintfield(L, -1, "maxlevel", groupcap.maxlevel);
+ setintfield(L, -1, "uses", groupcap.uses);
+ // Insert groupcap table into groupcaps table
+ lua_setfield(L, -2, name.c_str());
+ }
+ // Set groupcaps table
+ lua_setfield(L, -2, "groupcaps");
+ //Create damage_groups table
+ lua_newtable(L);
+ // For each damage group
+ for(std::map<std::string, s16>::const_iterator
+ i = toolcap.damageGroups.begin(); i != toolcap.damageGroups.end(); i++){
+ // Create damage group table
+ lua_pushinteger(L, i->second);
+ lua_setfield(L, -2, i->first.c_str());
+ }
+ lua_setfield(L, -2, "damage_groups");
+}
+
+/******************************************************************************/
+void push_inventory_list(Inventory *inv, const char *name,
+ lua_State *L)
+{
+ InventoryList *invlist = inv->getList(name);
+ if(invlist == NULL){
+ lua_pushnil(L);
+ return;
+ }
+ std::vector<ItemStack> items;
+ for(u32 i=0; i<invlist->getSize(); i++)
+ items.push_back(invlist->getItem(i));
+ push_items(L, items);
+}
+
+/******************************************************************************/
+void read_inventory_list(Inventory *inv, const char *name,
+ lua_State *L, int tableindex, Server* srv,int forcesize)
+{
+ if(tableindex < 0)
+ tableindex = lua_gettop(L) + 1 + tableindex;
+ // If nil, delete list
+ if(lua_isnil(L, tableindex)){
+ inv->deleteList(name);
+ return;
+ }
+ // Otherwise set list
+ std::vector<ItemStack> items = read_items(L, tableindex,srv);
+ int listsize = (forcesize != -1) ? forcesize : items.size();
+ InventoryList *invlist = inv->addList(name, listsize);
+ int index = 0;
+ for(std::vector<ItemStack>::const_iterator
+ i = items.begin(); i != items.end(); i++){
+ if(forcesize != -1 && index == forcesize)
+ break;
+ invlist->changeItem(index, *i);
+ index++;
+ }
+ while(forcesize != -1 && index < forcesize){
+ invlist->deleteItem(index);
+ index++;
+ }
+}
+
+/******************************************************************************/
+ToolCapabilities read_tool_capabilities(
+ lua_State *L, int table)
+{
+ ToolCapabilities toolcap;
+ getfloatfield(L, table, "full_punch_interval", toolcap.full_punch_interval);
+ getintfield(L, table, "max_drop_level", toolcap.max_drop_level);
+ lua_getfield(L, table, "groupcaps");
+ if(lua_istable(L, -1)){
+ int table_groupcaps = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, table_groupcaps) != 0){
+ // key at index -2 and value at index -1
+ std::string groupname = luaL_checkstring(L, -2);
+ if(lua_istable(L, -1)){
+ int table_groupcap = lua_gettop(L);
+ // This will be created
+ ToolGroupCap groupcap;
+ // Read simple parameters
+ getintfield(L, table_groupcap, "maxlevel", groupcap.maxlevel);
+ getintfield(L, table_groupcap, "uses", groupcap.uses);
+ // DEPRECATED: maxwear
+ float maxwear = 0;
+ if(getfloatfield(L, table_groupcap, "maxwear", maxwear)){
+ if(maxwear != 0)
+ groupcap.uses = 1.0/maxwear;
+ else
+ groupcap.uses = 0;
+ infostream<<script_get_backtrace(L)<<std::endl;
+ infostream<<"WARNING: field \"maxwear\" is deprecated; "
+ <<"should replace with uses=1/maxwear"<<std::endl;
+ }
+ // Read "times" table
+ lua_getfield(L, table_groupcap, "times");
+ if(lua_istable(L, -1)){
+ int table_times = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, table_times) != 0){
+ // key at index -2 and value at index -1
+ int rating = luaL_checkinteger(L, -2);
+ float time = luaL_checknumber(L, -1);
+ groupcap.times[rating] = time;
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+ // Insert groupcap into toolcap
+ toolcap.groupcaps[groupname] = groupcap;
+ }
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+
+ lua_getfield(L, table, "damage_groups");
+ if(lua_istable(L, -1)){
+ int table_damage_groups = lua_gettop(L);
+ lua_pushnil(L);
+ while(lua_next(L, table_damage_groups) != 0){
+ // key at index -2 and value at index -1
+ std::string groupname = luaL_checkstring(L, -2);
+ u16 value = luaL_checkinteger(L, -1);
+ toolcap.damageGroups[groupname] = value;
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ }
+ lua_pop(L, 1);
+ return toolcap;
+}
+
+/******************************************************************************/
+void push_dig_params(lua_State *L,const DigParams &params)
+{
+ lua_newtable(L);
+ setboolfield(L, -1, "diggable", params.diggable);
+ setfloatfield(L, -1, "time", params.time);
+ setintfield(L, -1, "wear", params.wear);
+}
+
+/******************************************************************************/
+void push_hit_params(lua_State *L,const HitParams &params)
+{
+ lua_newtable(L);
+ setintfield(L, -1, "hp", params.hp);
+ setintfield(L, -1, "wear", params.wear);
+}
+
+/******************************************************************************/
+u32 getflagsfield(lua_State *L, int table,
+ const char *fieldname, FlagDesc *flagdesc) {
+ std::string flagstring;
+
+ flagstring = getstringfield_default(L, table, fieldname, "");
+ return readFlagString(flagstring, flagdesc);
+}
+
+/******************************************************************************/
+/* Lua Stored data! */
+/******************************************************************************/
+
+/******************************************************************************/
+void read_groups(lua_State *L, int index,
+ std::map<std::string, int> &result)
+{
+ if (!lua_istable(L,index))
+ return;
+ result.clear();
+ lua_pushnil(L);
+ if(index < 0)
+ index -= 1;
+ while(lua_next(L, index) != 0){
+ // key at index -2 and value at index -1
+ std::string name = luaL_checkstring(L, -2);
+ int rating = luaL_checkinteger(L, -1);
+ result[name] = rating;
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+}
+
+/******************************************************************************/
+void push_items(lua_State *L, const std::vector<ItemStack> &items)
+{
+ // Get the table insert function
+ lua_getglobal(L, "table");
+ lua_getfield(L, -1, "insert");
+ int table_insert = lua_gettop(L);
+ // Create and fill table
+ lua_newtable(L);
+ int table = lua_gettop(L);
+ for(u32 i=0; i<items.size(); i++){
+ ItemStack item = items[i];
+ lua_pushvalue(L, table_insert);
+ lua_pushvalue(L, table);
+ LuaItemStack::create(L, item);
+ if(lua_pcall(L, 2, 0, 0))
+ script_error(L, "error: %s", lua_tostring(L, -1));
+ }
+ lua_remove(L, -2); // Remove table
+ lua_remove(L, -2); // Remove insert
+}
+
+/******************************************************************************/
+std::vector<ItemStack> read_items(lua_State *L, int index,Server* srv)
+{
+ if(index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ std::vector<ItemStack> items;
+ luaL_checktype(L, index, LUA_TTABLE);
+ lua_pushnil(L);
+ while(lua_next(L, index) != 0){
+ // key at index -2 and value at index -1
+ items.push_back(read_item(L, -1, srv));
+ // removes value, keeps key for next iteration
+ lua_pop(L, 1);
+ }
+ return items;
+}
+
+/******************************************************************************/
+void luaentity_get(lua_State *L, u16 id)
+{
+ // Get minetest.luaentities[i]
+ lua_getglobal(L, "minetest");
+ lua_getfield(L, -1, "luaentities");
+ luaL_checktype(L, -1, LUA_TTABLE);
+ lua_pushnumber(L, id);
+ lua_gettable(L, -2);
+ lua_remove(L, -2); // luaentities
+ lua_remove(L, -2); // minetest
+}
+
+/******************************************************************************/
+NoiseParams *read_noiseparams(lua_State *L, int index)
+{
+ if (index < 0)
+ index = lua_gettop(L) + 1 + index;
+
+ if (!lua_istable(L, index))
+ return NULL;
+
+ NoiseParams *np = new NoiseParams;
+
+ np->offset = getfloatfield_default(L, index, "offset", 0.0);
+ np->scale = getfloatfield_default(L, index, "scale", 0.0);
+ lua_getfield(L, index, "spread");
+ np->spread = read_v3f(L, -1);
+ lua_pop(L, 1);
+ np->seed = getintfield_default(L, index, "seed", 0);
+ np->octaves = getintfield_default(L, index, "octaves", 0);
+ np->persist = getfloatfield_default(L, index, "persist", 0.0);
+
+ return np;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 12:45:10 +0000