Beispiel #1
0
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
}
Beispiel #2
0
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))
			}
		}()
	}
}