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Simplify and optimize schematic replacements

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This commit is contained in:
ShadowNinja 2014-09-11 22:25:06 -04:00
parent b8ba6318d6
commit 2f170a63c6
2 changed files with 29 additions and 29 deletions
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4
doc/lua_api.txt
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@ -1719,7 +1719,7 @@ minetest.place_schematic(pos, schematic, rotation, replacements, force_placement
^ Place the schematic specified by schematic (see: Schematic specifier) at pos.
^ Rotation can be "0", "90", "180", "270", or "random".
^ If the rotation parameter is omitted, the schematic is not rotated.
^ replacements = {{"oldname", "convert_to"}, ...}
^ replacements = {["old_name"] = "convert_to", ...}
^ force_placement is a boolean indicating whether nodes other than air and
^ ignore are replaced by the schematic
@ -2634,7 +2634,7 @@ Decoration definition (register_decoration)
},
},
^ See 'Schematic specifier' for details.
replacements = {{"oldname", "convert_to"}, ...},
replacements = {["oldname"] = "convert_to", ...},
flags = "place_center_x, place_center_z",
^ Flags for schematic decorations. See 'Schematic attributes'.
rotation = "90" -- rotate schematic 90 degrees on placement

54
src/script/lua_api/l_mapgen.cpp
View File

@ -78,6 +78,31 @@ struct EnumString ModApiMapgen::es_Rotation[] =
};
static void read_schematic_replacements(lua_State *L, DecoSchematic *dschem, int index)
{
lua_pushnil(L);
while (lua_next(L, index)) {
// key at index -2 and value at index -1
std::string replace_from;
std::string replace_to;
if (lua_istable(L, -1)) { // Old {{"x", "y"}, ...} format
lua_rawgeti(L, -1, 1);
replace_from = lua_tostring(L, -1);
lua_pop(L, 1);
lua_rawgeti(L, -1, 2);
replace_to = lua_tostring(L, -1);
lua_pop(L, 1);
} else { // New {x = "y", ...} format
replace_from = lua_tostring(L, -2);
replace_to = lua_tostring(L, -1);
}
dschem->replacements[replace_from] = replace_to;
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
}
// get_mapgen_object(objectname)
// returns the requested object used during map generation
int ModApiMapgen::l_get_mapgen_object(lua_State *L)
@ -414,20 +439,7 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
lua_getfield(L, index, "replacements");
if (lua_istable(L, -1)) {
int i = lua_gettop(L);
lua_pushnil(L);
while (lua_next(L, i) != 0) {
// key at index -2 and value at index -1
lua_rawgeti(L, -1, 1);
std::string replace_from = lua_tostring(L, -1);
lua_pop(L, 1);
lua_rawgeti(L, -1, 2);
std::string replace_to = lua_tostring(L, -1);
lua_pop(L, 1);
dschem->replacements[replace_from] = replace_to;
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
read_schematic_replacements(L, dschem, lua_gettop(L));
}
lua_pop(L, 1);
@ -602,19 +614,7 @@ int ModApiMapgen::l_place_schematic(lua_State *L)
dschem.rotation = (Rotation)rot;
if (lua_istable(L, 4)) {
lua_pushnil(L);
while (lua_next(L, 4) != 0) {
// key at index -2 and value at index -1
lua_rawgeti(L, -1, 1);
std::string replace_from = lua_tostring(L, -1);
lua_pop(L, 1);
lua_rawgeti(L, -1, 2);
std::string replace_to = lua_tostring(L, -1);
lua_pop(L, 1);
dschem.replacements[replace_from] = replace_to;
// removes value, keeps key for next iteration
lua_pop(L, 1);
}
read_schematic_replacements(L, &dschem, 4);
}
bool force_placement = true;