local Battler = require("scenes.battlesystem.actors.battler")
local Hero = Battler:extend()

function Hero:new(world, x, y, charid, charnumber)
  Hero.super.new(self, world, x, y, 0)
  self.isHero     = true
  self.turnAction = nil
  self.startx, self.starty = self.x, self.y
  self.dx, self.dy = self.x, self.y
  self.direction = 1
  self.directionPrevious = 1

  if charid == nil then
    core.debug:error("FATAL ERROR: charid not set")
  end
  self.charid = charid
  self.actionPerTurn = game.characters.list[self.charid].turns
  self.assets:addSprite(charid, "datas/gamedata/characters/" .. charid .. "/sprites")
  self.assets.sprites[self.charid]:setCustomSpeed(16)
  self:setAnimation("idle")
  self:setSprite(charid, 32, 48, true)

  self.charnumber = charnumber or 1
end

function Hero:setAnimation(animation)
  if (self.animation ~= animation) then
    self.animation = animation
    self.assets.sprites[self.charid]:changeAnimation(animation, true)
  end
end

function Hero:draw()
  x, y = self.maputils.gridToPixel(self.x, self.y, true)
  --love.graphics.rectangle("fill", x - 8, y - 32, 16, 32)
  self:drawSprite()
end

function Hero:drawIcon(x, y)
  local iconID = 1
  self.assets.tileset["charicons"]:drawTile(iconID, x, y)
end

function Hero:setActive()
  local gridsize = game.characters.list[self.charid].base_stats.move
  if (gridsize == nil) then
    gridsize = 3
    core.debug:warning("cbs/character", "move value is nil")
  end
  self.world.cursor:setGrid(self.x, self.y, "square", gridsize, 1, self)
  self.startx, self.starty = self.x, self.y
  self.world.cursor:set(self.startx, self.starty)
  self.currentAction = "selectDirection"

  self.directionPrevious = self.direction
end

function Hero:update(dt)
  self.keys = self.scene:getKeys(1)
  if (self.currentAction == "moving") then
    self.xprevious = self.x
    self.yprevious = self.y
    self.x = (self.x) + ((self.dx) - (self.x)) * dt*15
    self.y = (self.y) + ((self.dy) - (self.y)) * dt*15

    local xspeed, yspeed  = math.abs(self.x - self.xprevious),
                            math.abs(self.y - self.yprevious)

    local speed = math.sqrt(xspeed*xspeed + yspeed*yspeed) * 32
    self.assets.sprites[self.charid]:setCustomSpeed(speed * 60)
    local direction = utils.math.sign(self.x - self.xprevious)
    if direction ~= 0 then
      self.direction = direction
    end
    if (math.abs(self.x - self.dx) < 0.01) and (math.abs(self.y - self.dy) < 0.01) then
      self.x = self.dx
      self.y = self.dy
      self:setAnimation("idle")
      self.currentAction = "selectAttack"
      self.scene.menu:set( self )
    end

  elseif (self.currentAction == "selectAttack") then
    if (self.keys["B"].isPressed) then
      --self.currentAction = "selectDirection"
      --self.world.cursor:set(self.x, self.y)
    end
  elseif (self.currentAction == "selectDirection") then
    self.xprevious = self.x
    self.yprevious = self.y

    self.x = (self.x) + ((self.startx) - (self.x)) * dt*15
    self.y = (self.y) + ((self.starty) - (self.y)) * dt*15

    local xspeed, yspeed  = math.abs(self.x - self.xprevious),
                            math.abs(self.y - self.yprevious)

    local speed = math.sqrt(xspeed*xspeed + yspeed*yspeed) * 32
    self.assets.sprites[self.charid]:setCustomSpeed(speed * 60)
    local direction = utils.math.sign(self.x - self.xprevious)
    if direction ~= 0 then
      self.direction = direction
    end

    if (math.abs(self.x - self.startx) < 0.01) and (math.abs(self.y - self.starty) < 0.01) then
      self.x = self.startx
      self.y = self.starty
      self:setAnimation("idle")
      self.direction = self.directionPrevious
    end
  end
end

function Hero:validateAction()
  if (self.currentAction == "selectDirection") then
    self:setAnimation("walk")
    self.currentAction = "moving"
    self.dx, self.dy = self.world.cursor.x, self.world.cursor.y

    self.world.cursor:unset( )
  end
end

function Hero:getStats()
  return game.characters.list[self.charid].stats
end

function Hero:getSignal(action_type, id)
  --print(action_type .. " " .. id)
  if (action_type == "back") then
    self.currentAction = "selectDirection"
    self.world.cursor:set(self.x, self.y)
    self:setAnimation("walk")
  elseif (action_type == "defend") then
    self.turnAction = "defend"
    self.world:switchActiveBattler( )
  else
    self.world:switchActiveBattler( )
  end
end

function Hero:getBackSignal()
  self.currentAction = "selectDirection"
  self.world.cursor:set(self.x, self.y)
  self:setAnimation("walk")
end

function Hero:drawHUD()
  local HUDBASE = -8
  local HUDSEP  = 152
  local x = HUDBASE + (self.charnumber-1)*HUDSEP
  local y = 32

  self.assets.images["statusbar"]:draw(x, y)
end

return Hero