#======
#Author: JA
#Date: 6/6/21
#======

#0

getwd()

pacman::p_load(
  tidyverse,
  plotly,
  gganimate,
  gifski,
  devtools
)

devtools::install_github("thomasp85/tweenr")
devtools::install_github("thomasp85/transformr")

#ffmpeg

#1

temperaturas <- read_csv("temperaturas_globales.csv")

#2

#3

plot <- ggplot(temperaturas,aes(x=year,y=value)) +
  geom_line() +
  geom_point(
    aes(fill=value),
    size=5,
    shape=21
  ) +
  scale_x_continuous(
    limits=c(1880,2017)
  ) +
  scale_y_continuous(
    limits=c(-0.5,1)
  ) +
  scale_fill_distiller(
    palette="RdYlBu",
    limits=c(-1,1)
  )



plotReveal <-  plot + transition_reveal(
    id=1,
    along=year
  )

plotTime <-  plot + transition_time(
    year
  )


animate(
  plotReveal,
  width=600,
  height=800,
  fps=24,
  renderer=ffmpeg_renderer()
)

anim_save("temperaturas_reveal.mp4")

animate(
  plotTime,
  width=600,
  height=800,
  fps=24,
  renderer=gifski_renderer()
)

anim_save("temperaturas_time.gif")