Person Class

local Person = {}
Person.__index = Person

function Person.new(gender, name)
    local self = setmetatable({
        gender = gender; -- M or F
        name = name;
        health = 100;
    }, Person)
    return self
end

function Person:speak(sentence)
    print(self.name .. ": " .. sentence)
end

function Person:greet()
    self:speak("Hello, my name is " .. self.name)
end

return Person