Lua vector helper

[Lyu]

Hi, here's a simple lua vector helper i just wrote:

--[[
    Lua vector helper created by Lyµ
    Discord: Lyµ#8767
]]

vector = {}

setmetatable(vector, {
    __call = function(self, ...)
        local obj = {...}
        return setmetatable(obj, {__index = self})
    end
})

function vector:front()
    return self[1]
end

function vector:back()
    return self[#self]
end

function vector:at(index)
    return self[index]
end

function vector:empty()
    return #self == 0
end

function vector:size()
    return #self
end

function vector:clear()
    for i = 1, #self do
        self[i] = nil
    end
end

function vector:emplace_back(element)
    self[#self + 1] = element
end

function vector:emplace_front(element)
    table.insert(self, 1, element)
end

function vector:erase(element)
    for i = 1, #self do
        if self[i] == element then
            table.remove(self, i)
            break
        end
    end
end

function vector:pop_back()
    self[#self] = nil
end

function vector:pop_front()
    self:erase(self[1])
end

function vector:rand()
    return self[math.random(#self)]
end

github gist: lua vector helper (https://gist.github.com/Lyuzera/83e7fde34862140eff8739d2ca3e5d8f)

example of how to use:

local vec = vector(5, 2)

vec:pop_front()
vec:emplace_back(10)

print(vec:front(), vec:back()) --> 2    10

 

[Keal Atis]

Good job! Thanks, it might be useful