Sorting Tables Twice in one Function - LUA

Question

Want the function to sort the table by HP but if duplicate HPs then sorts by name. When i run this function it just groups the duplicate HPs together in no order by the name.

T = { {Name = "Mark", HP = 54, Breed = "Ghost"}, {Name = "Stan", HP = 24, Breed = "Zombie"}, {Name = "Juli", HP = 100, Breed = "Human"}, { HP = 100, Breed = "Human"} }

function(x, y) if x.Name == nil or y.Name == nil then return x.HP < y.HP else return x.Name < y.Name and x.HP < y.HP end end) end

Answer 1

Try this sort func:

function(x,y)
    if x.Name == nil or y.Name == nil then
        return x.HP < y.HP
    else
        return x.HP < y.HP or (x.HP == y.HP and x.Name < y.Name)
    end
end

Since you always want differing HPs to be the primary sorting order (and name secondary), you want the HP check to come first in the or clause so that if it differs it'll skip any other checks and just determine based on HP.