local anim8 = require "lib.utils.anim8"

--- Скорость между кадрами в анимации
local ANIMATION_SPEED = 0.1

LEFT = -1
RIGHT = 1

--- @class Animation
--- @field animationTable table<string, table>
--- @field animationGrid table
--- @field state "idle"|"run"|"hurt"|"attack"
--- @field side 1|-1
local animation = {}
animation.__index = animation

local function new(spriteDir)
    local anim = {
        animationTable = {},
        animationGrid = {}
    }

    -- n: name; i: image
    for n, i in pairs(spriteDir) do
        local aGrid = anim8.newGrid(96, 64, i:getWidth(), i:getHeight())
        local tiles = '1-' .. math.ceil(i:getWidth() / 96)
        anim.animationGrid[n] = aGrid(tiles, 1)
    end

    anim.state = "idle"
    anim.side = RIGHT

    return setmetatable(anim, animation)
end

function animation:getState()
    return self.state
end

--- @param state CharacterState
function animation:setState(state, onLoop)
    self.animationTable[state] = anim8.newAnimation(self.animationGrid[state], ANIMATION_SPEED, onLoop)
    self.state = state
end

return { new = new }