Function is_normal_submap

tests/submap_load_test.cpp:798–854

//static const submap_checks dont_care;

static bool is_normal_submap( const submap &sm, submap_checks checks = {} )
{
    const bool terrain = checks.terrain;
    const bool furniture = checks.furniture;
    const bool traps = checks.traps;
    const bool radiation = checks.radiation;
    const bool items = checks.items;
    const bool fields = checks.fields;
    const bool cosmetics = checks.cosmetics;
    const bool spawns = checks.spawns;
    const bool vehicles = checks.vehicles;
    const bool construction = checks.construction;
    const bool computers = checks.computers;

    // For every point on the submap
    for( int y = 0; y < SEEY; ++y ) {
        for( int x = 0; x < SEEX; ++x ) {
            if( terrain && sm.get_ter( { x, y } ) != t_dirt ) {
                return false;
            }
            if( furniture && sm.get_furn( { x, y } ) != f_null ) {
                return false;
            }
            if( traps && sm.get_trap( {x, y} ) != tr_null ) {
                return false;
            }
            if( radiation && sm.get_radiation( { x, y } ) != 0 ) {
                return false;
            }
            if( items && !sm.get_items( {x, y} ).empty() ) {
                return false;
            }
            if( fields && sm.get_field( { x, y } ).field_count() != 0 ) {
                return false;
            }
            if( computers && sm.has_computer( {x, y} ) ) {
                return false;
            }
        }
    }

    // Can be found without checking every point
    if( cosmetics && !sm.cosmetics.empty() ) {
        return false;
    }
    if( spawns && !sm.spawns.empty() ) {
        return false;
    }
    if( vehicles && !sm.vehicles.empty() ) {
        return false;
    }
    if( construction && !sm.partial_constructions.empty() ) {
        return false;
    }

    return true;
}