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

-- INIT FUNCTIONS
-- Initialize the hero

function Hero:new(world, x, y, owner, charnumber)
  Hero.super.new(self, world, x, y, 0)
  self.isHero     = true
  self.owner = owner

  self:initMovementSystem()

  self:initSprite()

  self.side = "heroes"
end

-- UPDATE FUNCTION
-- Update the hero

function Hero:update(dt)
  Hero.super.update(self, dt)
  -- Calculate speed to calculate animation speed
  self:updateSpeed(dt)

  self.xprevious = self.x
  self.yprevious = self.y
  self.zprevious = self.z
end

-- MOVE FUNCTIONS
-- All functions handling the moving

local MOVEMENT_DURATION = 0.20

function Hero:initMovementSystem()
  self.startx, self.starty        = self.x, self.y
  self.xprevious, self.yprevious, self.zprevious  = self.x, self.y, self.z
  self.direction = 1
  self.directionPrevious = 1
  self.directionLocked = false
  self.unlockDirection = true

  self:initJump()
end

function Hero:goTo(dx, dy, duration, easing)
  local easing = easing or 'inOutQuad'
  if duration > 0 then
    self.tweens:newTween(0, duration, {x = dx, y = dy}, easing)
  end
  self.tweens:newTimer(duration + 0.02, "goTo")
end

function Hero:jumpTo(dx, dy, sizeFactor, duration, spinjump, easing)
  local easing = easing or 'inOutQuad'
  local dist = utils.math.pointDistance(self.x, self.y, dx, dy)
  local jumpHeight = dist * 8 * sizeFactor
  self.tweens:newTween(0, duration, {x = dx, y = dy}, easing)
  self.tweens:newTimer(duration + 0.02, "jumpTo")
  self:setJump(jumpHeight, spinjump, duration)
end

function Hero:updateSpeed(dt)
  self:applyMotion(dt)
  self.xspeed = self.x - self.xprevious
  self.yspeed = self.y - self.yprevious
  self.zspeed = self.z - self.zprevious

  self.gspeed = math.sqrt(self.xspeed^2 + self.yspeed^2)

  -- Handle direction
  if math.abs(self.xspeed) > 0 then
    if (self.directionLocked == false) then
      self.direction = utils.math.sign(self.xspeed)
    end
  else
    if self.unlockDirection then
      self.unlockDirection = false
      self.directionLocked = false
    end
  end

  if self.z > 0 and self.jump.spin == false then
    if self.zspeed > 0 then
      self:changeAnimation("jump")
    else
      self:changeAnimation("fall")
    end
  end

  self:setCustomSpeed(self.gspeed * 320)
end

function Hero:initJump()
  self.jump = {}
  self.jump.spin  = false
end

function Hero:setJump(size, spinjump, duration)
  local tweenDuration = duration / 2
  self.tweens:newTween(0, tweenDuration, {z = size}, 'outQuad')
  self.tweens:newTween(tweenDuration, tweenDuration, {z = 0}, 'inQuad')
  self.jump.spin = spinjump
end

function Hero:setMotionX(direction, speed)
  self.motion = speed
  self.motionDirection = direction
end

function Hero:applyMotion(dt)
  if self.motion ~= 0 and self.motion ~= nil then
    local dx = self.x + self.motion * self.motionDirection * dt
    -- {1, 0, "line", 5, true}
    local ox        = self.choregraphy.startx + (self.choregraphy.effectArea[1] * self.choregraphy.direction)
    local oy        = self.choregraphy.starty + self.choregraphy.effectArea[2]
    local shape     = self.choregraphy.effectArea[3]
    local size      = self.choregraphy.effectArea[4]
    local direction = self.choregraphy.direction

    local new_case_x = utils.math.round(dx)
    local new_case_y = utils.math.round(self.y)
    print(new_case_x, new_case_y, self.world:caseIsEmpty(new_case_x, new_case_y, self))
    if self.maputils.isInMask(dx, self.y, ox, oy, shape, size, direction) and self.world:caseIsEmpty(new_case_x, new_case_y, self) then
      self.x = dx
    else
      self.x = dx
      self.motion = 0
      if (self.blockingChoregraphy == 'action_dashForward') then
        self:unblockChoregraphy()
        self.direction = self.choregraphy.direction
      end
    end
  end
end

-- CHOREGRAPHY FUNCTIONS
-- All functions related to the choregraphy system

function Hero:blockChoregraphy(isBlocking, currentlyBlocking, blockedBy)
  if (isBlocking) then
    self.currentlyBlocking = currentlyBlocking
    self.blockedBy = blockedBy
  end
end

function Hero:unblockChoregraphy()
  self.currentlyBlocking:finish()
  self.currentlyBlocking = nil
end

function Hero:timerResponse(signal)
  if ((self.currentlyBlocking ~= nil) and (signal == self.blockedBy)) then
    self:unblockChoregraphy()
  end
end

function Hero:choregraphyEnded()
  self.direction = 1
end

-- ASSETS FUNCTIONS
-- Load and play assets needed by the character

function Hero:initSprite()
  self.assets:addSprite(self.owner.name, "datas/gamedata/characters/" .. self.owner.name .. "/sprites")
  self.assets.sprites[self.owner.name]:setCustomSpeed(16)
  self:setSprite(self.owner.name, 32, 48, true)
  self:cloneSprite()
  self:changeAnimation("idle")
end

function Hero:animationEnded(animation)
  if (self.currentlyBlocking ~= nil and self.blockedBy=="animation") then
    self:unblockChoregraphy()
  end
end

-- DRAW FUNCTIONS
-- Draw everything related to the hero

function Hero:draw()
  self:drawSprite(0, -self.z)
end

return Hero