diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/scripting/lua.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/scripting/lua.cpp b/src/scripting/lua.cpp index d55fb132..d461bf44 100644 --- a/src/scripting/lua.cpp +++ b/src/scripting/lua.cpp @@ -53,6 +53,7 @@ extern "C" { #include "utils/speedconv.h" #include <string.h> +#include <math.h> /* * This file includes all script bindings available to LUA scripts. @@ -1834,6 +1835,36 @@ static int log(lua_State *s) return 0; } +/** + * Gets the distance between two beings or two points + */ +static int get_distance(lua_State *s) +{ + int x1, y1, x2, y2; + if (lua_gettop(s) == 2) + { + Being *being1 = getBeing(s, 1); + Being *being2 = getBeing(s, 2); + x1 = being1->getPosition().x; + y1 = being1->getPosition().y; + x2 = being2->getPosition().x; + y2 = being2->getPosition().y; + } + else + { + x1 = luaL_checkint(s, 1); + y1 = luaL_checkint(s, 2); + x2 = luaL_checkint(s, 3); + y2 = luaL_checkint(s, 4); + } + const int dx = x1 - x2; + const int dy = y1 - y2; + const float dist = sqrt((dx * dx) + (dy * dy)); + lua_pushinteger(s, dist); + + return 1; +} + static int require_loader(lua_State *s) { // Add .lua extension (maybe only do this when it doesn't have it already) @@ -1934,6 +1965,7 @@ LuaScript::LuaScript(): { "npc_end", &npc_end }, { "npc_ask_string", &npc_ask_string }, { "log", &log }, + { "get_distance", &get_distance }, { NULL, NULL } }; luaL_register(mState, "mana", callbacks); |