src/script/cpp_api/s_node.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20 #include "cpp_api/s_node.h"
  21 #include "cpp_api/s_internal.h"
  22 #include "common/c_converter.h"
  23 #include "common/c_content.h"
  24 #include "nodedef.h"
  25 #include "server.h"
  26 #include "environment.h"
  27 #include "util/pointedthing.h"
  28
  29
  30 // Should be ordered exactly like enum NodeDrawType in nodedef.h
  31 struct EnumString ScriptApiNode::es_DrawType[] =
  32         {
  33                 {NDT_NORMAL, "normal"},
  34                 {NDT_AIRLIKE, "airlike"},
  35                 {NDT_LIQUID, "liquid"},
  36                 {NDT_FLOWINGLIQUID, "flowingliquid"},
  37                 {NDT_GLASSLIKE, "glasslike"},
  38                 {NDT_ALLFACES, "allfaces"},
  39                 {NDT_ALLFACES_OPTIONAL, "allfaces_optional"},
  40                 {NDT_TORCHLIKE, "torchlike"},
  41                 {NDT_SIGNLIKE, "signlike"},
  42                 {NDT_PLANTLIKE, "plantlike"},
  43                 {NDT_FENCELIKE, "fencelike"},
  44                 {NDT_RAILLIKE, "raillike"},
  45                 {NDT_NODEBOX, "nodebox"},
  46                 {NDT_GLASSLIKE_FRAMED, "glasslike_framed"},
  47                 {NDT_FIRELIKE, "firelike"},
  48                 {NDT_GLASSLIKE_FRAMED_OPTIONAL, "glasslike_framed_optional"},
  49                 {NDT_MESH, "mesh"},
  50                 {NDT_PLANTLIKE_ROOTED, "plantlike_rooted"},
  51                 {0, NULL},
  52         };
  53
  54 struct EnumString ScriptApiNode::es_ContentParamType2[] =
  55         {
  56                 {CPT2_NONE, "none"},
  57                 {CPT2_FULL, "full"},
  58                 {CPT2_FLOWINGLIQUID, "flowingliquid"},
  59                 {CPT2_FACEDIR, "facedir"},
  60                 {CPT2_WALLMOUNTED, "wallmounted"},
  61                 {CPT2_LEVELED, "leveled"},
  62                 {CPT2_DEGROTATE, "degrotate"},
  63                 {CPT2_MESHOPTIONS, "meshoptions"},
  64                 {CPT2_COLOR, "color"},
  65                 {CPT2_COLORED_FACEDIR, "colorfacedir"},
  66                 {CPT2_COLORED_WALLMOUNTED, "colorwallmounted"},
  67                 {CPT2_GLASSLIKE_LIQUID_LEVEL, "glasslikeliquidlevel"},
  68                 {0, NULL},
  69         };
  70
  71 struct EnumString ScriptApiNode::es_LiquidType[] =
  72         {
  73                 {LIQUID_NONE, "none"},
  74                 {LIQUID_FLOWING, "flowing"},
  75                 {LIQUID_SOURCE, "source"},
  76                 {0, NULL},
  77         };
  78
  79 struct EnumString ScriptApiNode::es_ContentParamType[] =
  80         {
  81                 {CPT_NONE, "none"},
  82                 {CPT_LIGHT, "light"},
  83                 {0, NULL},
  84         };
  85
  86 struct EnumString ScriptApiNode::es_NodeBoxType[] =
  87         {
  88                 {NODEBOX_REGULAR, "regular"},
  89                 {NODEBOX_FIXED, "fixed"},
  90                 {NODEBOX_WALLMOUNTED, "wallmounted"},
  91                 {NODEBOX_LEVELED, "leveled"},
  92                 {NODEBOX_CONNECTED, "connected"},
  93                 {0, NULL},
  94         };
  95
  96 bool ScriptApiNode::node_on_punch(v3s16 p, MapNode node,
  97                 ServerActiveObject *puncher, const PointedThing &pointed)
  98 {
  99         SCRIPTAPI_PRECHECKHEADER
 100
 101         int error_handler = PUSH_ERROR_HANDLER(L);
 102
 103         const NodeDefManager *ndef = getServer()->ndef();
 104
 105         // Push callback function on stack
 106         if (!getItemCallback(ndef->get(node).name.c_str(), "on_punch", &p))
 107                 return false;
 108
 109         // Call function
 110         push_v3s16(L, p);
 111         pushnode(L, node, ndef);
 112         objectrefGetOrCreate(L, puncher);
 113         pushPointedThing(pointed);
 114         PCALL_RES(lua_pcall(L, 4, 0, error_handler));
 115         lua_pop(L, 1);  // Pop error handler
 116         return true;
 117 }
 118
 119 bool ScriptApiNode::node_on_dig(v3s16 p, MapNode node,
 120                 ServerActiveObject *digger)
 121 {
 122         SCRIPTAPI_PRECHECKHEADER
 123
 124         int error_handler = PUSH_ERROR_HANDLER(L);
 125
 126         const NodeDefManager *ndef = getServer()->ndef();
 127
 128         // Push callback function on stack
 129         if (!getItemCallback(ndef->get(node).name.c_str(), "on_dig", &p))
 130                 return false;
 131
 132         // Call function
 133         push_v3s16(L, p);
 134         pushnode(L, node, ndef);
 135         objectrefGetOrCreate(L, digger);
 136         PCALL_RES(lua_pcall(L, 3, 0, error_handler));
 137         lua_pop(L, 1);  // Pop error handler
 138         return true;
 139 }
 140
 141 void ScriptApiNode::node_on_construct(v3s16 p, MapNode node)
 142 {
 143         SCRIPTAPI_PRECHECKHEADER
 144
 145         int error_handler = PUSH_ERROR_HANDLER(L);
 146
 147         const NodeDefManager *ndef = getServer()->ndef();
 148
 149         // Push callback function on stack
 150         if (!getItemCallback(ndef->get(node).name.c_str(), "on_construct", &p))
 151                 return;
 152
 153         // Call function
 154         push_v3s16(L, p);
 155         PCALL_RES(lua_pcall(L, 1, 0, error_handler));
 156         lua_pop(L, 1);  // Pop error handler
 157 }
 158
 159 void ScriptApiNode::node_on_destruct(v3s16 p, MapNode node)
 160 {
 161         SCRIPTAPI_PRECHECKHEADER
 162
 163         int error_handler = PUSH_ERROR_HANDLER(L);
 164
 165         const NodeDefManager *ndef = getServer()->ndef();
 166
 167         // Push callback function on stack
 168         if (!getItemCallback(ndef->get(node).name.c_str(), "on_destruct", &p))
 169                 return;
 170
 171         // Call function
 172         push_v3s16(L, p);
 173         PCALL_RES(lua_pcall(L, 1, 0, error_handler));
 174         lua_pop(L, 1);  // Pop error handler
 175 }
 176
 177 bool ScriptApiNode::node_on_flood(v3s16 p, MapNode node, MapNode newnode)
 178 {
 179         SCRIPTAPI_PRECHECKHEADER
 180
 181         int error_handler = PUSH_ERROR_HANDLER(L);
 182
 183         const NodeDefManager *ndef = getServer()->ndef();
 184
 185         // Push callback function on stack
 186         if (!getItemCallback(ndef->get(node).name.c_str(), "on_flood", &p))
 187                 return false;
 188
 189         // Call function
 190         push_v3s16(L, p);
 191         pushnode(L, node, ndef);
 192         pushnode(L, newnode, ndef);
 193         PCALL_RES(lua_pcall(L, 3, 1, error_handler));
 194         lua_remove(L, error_handler);
 195         return readParam<bool>(L, -1, false);
 196 }
 197
 198 void ScriptApiNode::node_after_destruct(v3s16 p, MapNode node)
 199 {
 200         SCRIPTAPI_PRECHECKHEADER
 201
 202         int error_handler = PUSH_ERROR_HANDLER(L);
 203
 204         const NodeDefManager *ndef = getServer()->ndef();
 205
 206         // Push callback function on stack
 207         if (!getItemCallback(ndef->get(node).name.c_str(), "after_destruct", &p))
 208                 return;
 209
 210         // Call function
 211         push_v3s16(L, p);
 212         pushnode(L, node, ndef);
 213         PCALL_RES(lua_pcall(L, 2, 0, error_handler));
 214         lua_pop(L, 1);  // Pop error handler
 215 }
 216
 217 bool ScriptApiNode::node_on_timer(v3s16 p, MapNode node, f32 dtime)
 218 {
 219         SCRIPTAPI_PRECHECKHEADER
 220
 221         int error_handler = PUSH_ERROR_HANDLER(L);
 222
 223         const NodeDefManager *ndef = getServer()->ndef();
 224
 225         // Push callback function on stack
 226         if (!getItemCallback(ndef->get(node).name.c_str(), "on_timer", &p))
 227                 return false;
 228
 229         // Call function
 230         push_v3s16(L, p);
 231         lua_pushnumber(L,dtime);
 232         PCALL_RES(lua_pcall(L, 2, 1, error_handler));
 233         lua_remove(L, error_handler);
 234         return readParam<bool>(L, -1, false);
 235 }
 236
 237 void ScriptApiNode::node_on_receive_fields(v3s16 p,
 238                 const std::string &formname,
 239                 const StringMap &fields,
 240                 ServerActiveObject *sender)
 241 {
 242         SCRIPTAPI_PRECHECKHEADER
 243
 244         int error_handler = PUSH_ERROR_HANDLER(L);
 245
 246         const NodeDefManager *ndef = getServer()->ndef();
 247
 248         // If node doesn't exist, we don't know what callback to call
 249         MapNode node = getEnv()->getMap().getNode(p);
 250         if (node.getContent() == CONTENT_IGNORE)
 251                 return;
 252
 253         // Push callback function on stack
 254         if (!getItemCallback(ndef->get(node).name.c_str(), "on_receive_fields", &p))
 255                 return;
 256
 257         // Call function
 258         push_v3s16(L, p);                    // pos
 259         lua_pushstring(L, formname.c_str()); // formname
 260         lua_newtable(L);                     // fields
 261         StringMap::const_iterator it;
 262         for (it = fields.begin(); it != fields.end(); ++it) {
 263                 const std::string &name = it->first;
 264                 const std::string &value = it->second;
 265                 lua_pushstring(L, name.c_str());
 266                 lua_pushlstring(L, value.c_str(), value.size());
 267                 lua_settable(L, -3);
 268         }
 269         objectrefGetOrCreate(L, sender);        // player
 270         PCALL_RES(lua_pcall(L, 4, 0, error_handler));
 271         lua_pop(L, 1);  // Pop error handler
 272 }