Tired recover time counter reset even when counting time is shorter than reset time

[n4feng]

For instance, if your recover time is 6 min at the beginning, and drop down to 1 min, now you back to main surface and the counter will be reset to 3 min. Suggest: add an if statement for time reset: if(current_time < calculate_time){
//do nothing
}
else {
reset();
}