Method safeAimProjectile

plugins/siege-engine.cpp:1636–1662

    }

    static int safeAimProjectile(lua_State *L)
    {
        color_ostream &out = *Lua::GetOutput(L);
        auto proj = (projectile_hook*)lua_touserdata(L, 1);
        auto engine = (EngineInfo*)lua_touserdata(L, 2);
        auto unit = (df::unit*)lua_touserdata(L, 3);
        int skill = lua_tointeger(L, 4);

        if (!Lua::PushModulePublic(out, L, "plugins.siege-engine", "doAimProjectile"))
            luaL_error(L, "Projectile aiming AI not available");

        Lua::PushDFObject(L, engine->bld);
        Lua::Push(L, proj->item);
        Lua::Push(L, engine->target.first);
        Lua::Push(L, engine->target.second);
        Lua::PushDFObject(L, unit);
        Lua::Push(L, skill);

        lua_call(L, 6, 1);

        if (lua_isnil(L, -1))
            proj->aimAtArea(engine, skill);
        else
            proj->aimAtPoint(engine, skill, decode_path(L, -1, engine->center));

        return 0;
    }

    void doCheckMovement()
    {