--player.lua

--require

local gameObject = require('gameObject')

-- class

local player = gameObject:new()

--enums

player.playerStateMovementState = {
    onGround = 'onGround',
    inAir = 'inAir',
    onLadder = 'onLadder',
    onPlatform = 'onPlatform'
}

function player:new(x, y, path)
    local obj = {
        xPosition = x or 0,
        yPosition = y or 0,
        xVelocity = 0,
        yVelocity = 0,
        gravity = 9.81 * 7,
        speed = 30,
        jumpStrength = -7,
        state = self.playerStateMovementState.inAir,
        playerSprite = love.graphics.newImage(path)
    }

    setmetatable(obj, self)
    self.__index = self

    return obj
end

function player:move(direction)
    if direction == 'left' then
        self.xVelocity = self.xVelocity - self.speed
    end

    if direction == 'right' then
        self.xVelocity = self.xVelocity + self.speed
    end
end

function player:jump()
    self.yVelocity = self.yVelocity + self.jumpStrength
end

function player:checkForInput()

    if love.keyboard.isDown('d') then
        self:move('right')
    end

    if love.keyboard.isDown('a') then
        self:move('left')
    end

    if love.keyboard.isDown('space') then
        self:jump()
    end
end

function player:applyVelocity(dt)
    self.xPosition = self.xPosition + self.xVelocity * dt
    self.yPosition = self.yPosition + self.yVelocity * dt
    self.yVelocity = self.yVelocity + self.gravity * dt
end

function player:load()
end

function player:update(dt)
    self:checkForInput()
    self:applyVelocity(dt)
end

function player:draw()
    love.graphics.draw(self.playerSprite, self.xPosition, self.yPosition)
end

return player