Player = {}
Player.name = 'player'
Player.color = {255, 0, 0}
Player.width = 5
Player.height = 5
Player.acceleration = 100
Player.position = {x=0, y=0}
Player.vector = {x=0, y=0}
Player.path = {}

function Player:new(o)
    o = o or {}
    setmetatable(o, self)
    self.__index = self
    o:recordPosition()
    o.vector = {x=o.acceleration, y=0}
    return o
end

function Player:drawPath()
    if #self.path >= 4 then
        love.graphics.setColor(self.color)
        love.graphics.line(self.path)
    end
end

function Player:draw()
    love.graphics.setColor(self.color)
    love.graphics.rectangle('fill', self.position.x, self.position.y, self.width, self.height)

    -- add current position
    self:recordPosition()
    self:drawPath()
    table.remove(self.path)
    table.remove(self.path)
end

function Player:recordPosition()
    print(self.position.x .. ', ' .. self.position.y)
    table.insert(self.path, self.position.x + self.width/2)
    table.insert(self.path, self.position.y + self.height/2)
end

function Player:update(dt)
    if love.keyboard.isDown("w") then
        self.vector = {x=0, y=-self.acceleration}
        self:recordPosition()
    elseif love.keyboard.isDown("s") then
        self.vector = {x=0, y=self.acceleration}
        self:recordPosition()
    elseif love.keyboard.isDown("a") then
        self.vector = {x=-self.acceleration, y=0}
        self:recordPosition()
    elseif love.keyboard.isDown("d") then
        self.vector = {x=self.acceleration, y=0}
        self:recordPosition()
    end

    self.position.x = self.position.x + self.vector.x * dt
    self.position.y = self.position.y + self.vector.y * dt
end