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Added parameters to Lua pathfinder.

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This commit is contained in:
Guillaume Melquiond 2009-09-19 21:51:42 +00:00
parent 4292565a0f
commit 5e6f8bfd4b
1 changed files with 19 additions and 3 deletions
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22
src/scripting/lua.cpp
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@ -1325,7 +1325,8 @@ static int intf_eval_conditional(lua_State *L)
* Finds a path between two locations.
* - Args 1,2: source location. (Or Arg 1: unit.)
* - Args 3,4: destination.
* - Arg 5: parameters or cost function.
* - Arg 5: optional cost function or
* table (optional fields: ignore_units, viewing_side)
* - Ret 1: array of pairs containing path steps.
* - Ret 2: path cost.
*/
@ -1379,9 +1380,24 @@ static int intf_find_path(lua_State *L)
std::vector<team> &teams = *resources::teams;
gamemap &map = *resources::game_map;
int viewing_side = u->side();
bool ignore_units = false;
shortest_path_calculator calc(*u, teams[u->side() - 1],
*resources::units, teams, map);
if (lua_istable(L, arg))
{
lua_pushstring(L, "ignore_units");
lua_gettable(L, arg);
ignore_units = lua_toboolean(L, -1);
lua_pop(L, 1);
lua_pushstring(L, "viewing_side");
lua_gettable(L, arg);
int i = lua_tointeger(L, -1);
if (i >= 1 && i <= int(teams.size())) viewing_side = i;
lua_pop(L, 1);
}
shortest_path_calculator calc(*u, teams[viewing_side - 1],
*resources::units, teams, map, ignore_units);
plain_route res = a_star_search(src, dst, 10000.0, &calc, map.w(), map.h());
int nb = res.steps.size();