local CharUtils = {}

local CONST = {}

CONST.EXP_MULTIPLICATOR = 4
CONST.EXP_RATIO = 5

CONST.BASE_STAT = 5
CONST.BASE_HP = 15
CONST.BASE_MP = 8

CONST.MULT_STAT = 2
CONST.MULT_HP = 7.5
CONST.SALT_HP = 35
CONST.MULT_MP = 1.5

function CharUtils.getExpValue(level)
  return math.floor( ( CONST.EXP_MULTIPLICATOR * ( level ^ 3 ) ) / CONST.EXP_RATIO )
end

function CharUtils.getStatValue(level, base)
  return math.floor( (((base * CONST.MULT_STAT) * level)/100) ) + CONST.BASE_STAT
end

function CharUtils.getHPValue(level, base)
  return math.floor( (((CONST.SALT_HP + base * CONST.MULT_HP) * level)/100) ) + CONST.BASE_HP + level
end

function CharUtils.getPPValue(level, base)
  return math.floor( (((base * CONST.MULT_MP) * level)/100) ) + CONST.BASE_MP
end

function CharUtils.charDataExists(name)
  local dir = "datas/gamedata/characters/" .. name .. "/init.lua"
  local fileinfo = love.filesystem.getInfo(dir)
  return (fileinfo ~= nil)
end

function CharUtils.getCharacterData(charname)
  -- va eprmettre de récupérer les données d'un personnage
  local charfolder = "datas.gamedata.characters." .. charname
  local character = require(charfolder)
  character.stats  = require(charfolder .. ".stats")
  character.inventory   = require(charfolder .. ".inventory")
  character.skills      = require(charfolder .. ".skills")

  return character
end

return CharUtils