-- Floating text: damage numbers and other pop-up text
FloatingText = {}
FloatingText.__index = FloatingText

function FloatingText:new(x, y, text, config)
  self = setmetatable({}, FloatingText)
  self.x = x
  self.y = y
  self.text = text
  self.life = config and config.life or 1
  self.maxLife = self.life
  self.maxY = config and config.maxY or -40
  self.size = config and config.size or 14
  self.color = config and config.color or { 1, 0.2, 0.2 }
  self.fadeIn = config and config.fadeIn or 0.1
  self.alive = true
  return self
end

function FloatingText:update(dt)
  self.life = self.life - dt
  if self.life <= 0 then
    self.alive = false
    return
  end
  self.y = self.y + self.maxY * dt
end

function FloatingText:draw()
  if self.life <= 0 then return end
  local alpha = self.life / self.maxLife
  if alpha > 1 then alpha = 1 end
  local fadeInT = math.min(1, (self.maxLife - self.life) / self.fadeIn)
  alpha = alpha * fadeInT

  love.graphics.setColor(self.color[1], self.color[2], self.color[3], alpha)
  love.graphics.print(self.text, math.floor(self.x), math.floor(self.y))
  love.graphics.setColor(1, 1, 1, 1)
end