func AddLinePointsWithColor(plt *plot.Plot, i int, vs ...interface{}) error {
var ps []plot.Plotter
names := make(map[[2]plot.Thumbnailer]string)
name := ""
for _, v := range vs {
switch t := v.(type) {
case string:
name = t
case plotter.XYer:
l, s, err := plotter.NewLinePoints(t)
if err != nil {
return err
}
l.Color = plotutil.Color(i)
l.Dashes = plotutil.Dashes(i)
s.Color = plotutil.Color(i)
s.Shape = plotutil.Shape(i)
ps = append(ps, l, s)
if name != "" {
names[[2]plot.Thumbnailer{l, s}] = name
name = ""
}
default:
panic(fmt.Sprintf("AddLinePointsWithColor handles strings and plotter.XYers, got %T", t))
}
}
plt.Add(ps...)
for ps, n := range names {
plt.Legend.Add(n, ps[0], ps[1])
}
return nil
}
func (p *chartPlugin) messageFunc(bot *bruxism.Bot, service bruxism.Service, message bruxism.Message) {
if service.IsMe(message) {
return
}
if bruxism.MatchesCommand(service, "chart", message) {
query, parts := bruxism.ParseCommand(service, message)
if len(parts) == 0 {
service.SendMessage(message.Channel(), fmt.Sprintf("Invalid chart eg: %s", p.randomChart(service)))
return
}
start, end := 0.5, 0.5
switch parts[0] {
case "up":
start, end = 0, 1
case "down":
start, end = 1, 0
case "flat":
case "straight":
default:
service.SendMessage(message.Channel(), fmt.Sprintf("Invalid chart direction. eg: %s", p.randomChart(service)))
return
}
axes := strings.Split(query[len(parts[0]):], ",")
if len(axes) != 2 {
service.SendMessage(message.Channel(), fmt.Sprintf("Invalid chart axis labels eg: %s", p.randomChart(service)))
return
}
pl, err := plot.New()
if err != nil {
service.SendMessage(message.Channel(), fmt.Sprintf("Error making chart, sorry! eg: %s", p.randomChart(service)))
return
}
service.Typing(message.Channel())
pl.Y.Label.Text = axes[0]
pl.X.Label.Text = axes[1]
num := 5 + rand.Intn(15)
start *= float64(num)
end *= float64(num)
pts := make(plotter.XYs, num)
for i := range pts {
pts[i].X = float64(i) + rand.Float64()*0.5 - 0.2
pts[i].Y = start + float64(end-start)/float64(num-1)*float64(i) + rand.Float64()*0.5 - 0.25
}
pl.X.Tick.Label.Color = color.Transparent
pl.Y.Tick.Label.Color = color.Transparent
pl.X.Min = -0.5
pl.X.Max = float64(num) + 0.5
pl.Y.Min = -0.5
pl.Y.Max = float64(num) + 0.5
lpLine, lpPoints, err := plotter.NewLinePoints(pts)
if err != nil {
service.SendMessage(message.Channel(), fmt.Sprintf("Sorry %s, there was a problem creating your chart.", message.UserName()))
}
lpLine.Color = plotutil.Color(rand.Int())
lpLine.Width = vg.Points(1 + 0.5*rand.Float64())
lpLine.Dashes = plotutil.Dashes(rand.Int())
lpPoints.Shape = plotutil.Shape(rand.Int())
lpPoints.Color = lpLine.Color
pl.Add(lpLine, lpPoints)
w, err := pl.WriterTo(320, 240, "png")
if err != nil {
service.SendMessage(message.Channel(), fmt.Sprintf("Sorry %s, there was a problem creating your chart.", message.UserName()))
return
}
b := &bytes.Buffer{}
w.WriteTo(b)
go func() {
if service.Name() == bruxism.DiscordServiceName {
discord := service.(*bruxism.Discord)
p, err := discord.UserChannelPermissions(message.UserID(), message.Channel())
if err == nil && p&discordgo.PermissionAttachFiles != 0 {
service.SendFile(message.Channel(), "chart.png", b)
return
}
}
url, err := bot.UploadToImgur(b, "chart.png")
if err != nil {
service.SendMessage(message.Channel(), fmt.Sprintf("Sorry %s, there was a problem uploading the chart to imgur.", message.UserName()))
log.Println("Error uploading chart: ", err)
return
}
if service.Name() == bruxism.DiscordServiceName {
service.SendMessage(message.Channel(), fmt.Sprintf("Here's your chart <@%s>: %s", message.UserID(), url))
} else {
service.SendMessage(message.Channel(), fmt.Sprintf("Here's your chart %s: %s", message.UserName(), url))
}
}()
}
}