From 580e7e8eb902ae2faed36b4982e7e751e35f5201 Mon Sep 17 00:00:00 2001 From: Wuzzy Date: Thu, 5 Mar 2020 12:07:52 +0100 Subject: Fix pathfinder bugs: returning nil frequently, broken A*, jump through solid nodes (#9339) * Fix pathfinder fail when startpos is over air * Note down pathfinder restrictions * Implement real A* search * Pathfinder: Implement buildPath non-recursively * Update find_path documentation * Pathfinder: Check if jump path is unobstructed * Pathfinder: Fix drop check first checking upwards * Pathfinder: Return nil if source or dest are solid * Pathfinder: Use priority queue for open list --- src/script/lua_api/l_env.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/script') diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp index a175569d8..352c75fb2 100644 --- a/src/script/lua_api/l_env.cpp +++ b/src/script/lua_api/l_env.cpp @@ -1194,7 +1194,7 @@ int ModApiEnvMod::l_find_path(lua_State *L) unsigned int max_jump = luaL_checkint(L, 4); unsigned int max_drop = luaL_checkint(L, 5); PathAlgorithm algo = PA_PLAIN_NP; - if (!lua_isnil(L, 6)) { + if (!lua_isnoneornil(L, 6)) { std::string algorithm = luaL_checkstring(L,6); if (algorithm == "A*") -- cgit v1.2.3