AI = {}


function AI:load()
  self.width = 20
  self.height = 100
  self.x = love.graphics.getWidth() - self.width - 50
  self.y = love.graphics.getHeight() / 2
  self.yVel = 0
  self.speed = 500

  self.timer = 0
  self.rate = 0.5
end


function AI:update(dt)
  self:move(dt)
  self.timer = self.timer + dt
  if self.timer > self.rate then
     self.timer = 0
     self:acquireTarget()
  end
end


function AI:move(dt)
  self.y = self.y + self.yVel * dt
end


function AI:acquireTarget()
  if Ball.y + Ball.height < self.y then
     self.yVel = -self.speed
  elseif Ball.y > self.y + self.height then
     self.yVel = self.speed
  else
     self.yVel = 0
  end
end

    
function AI:draw()
  love.graphics.rectangle("fill", self.x, self.y, self.width, self.height)
end