catbase/plugins/dice/dice.go

103 lines
2.3 KiB
Go

// © 2013 the CatBase Authors under the WTFPL. See AUTHORS for the list of authors.
package dice
import (
"time"
"github.com/velour/catbase/bot"
"github.com/velour/catbase/bot/msg"
)
import (
"fmt"
"math/rand"
"strconv"
"strings"
)
// This is a dice plugin to serve as an example and quick copy/paste for new plugins.
type DicePlugin struct {
Bot bot.Bot
}
// NewDicePlugin creates a new DicePlugin with the Plugin interface
func New(bot bot.Bot) *DicePlugin {
rand.Seed(time.Now().Unix())
return &DicePlugin{
Bot: bot,
}
}
func rollDie(sides int) int {
return rand.Intn(sides) + 1
}
// Message responds to the bot hook on recieving messages.
// This function returns true if the plugin responds in a meaningful way to the users message.
// Otherwise, the function returns false and the bot continues execution of other plugins.
func (p *DicePlugin) Message(message msg.Message) bool {
channel := message.Channel
parts := strings.Fields(message.Body)
if len(parts) == 1 && message.Command {
var dice []string
dice = strings.Split(parts[0], "d")
if len(dice) == 2 {
// We actually have a die roll.
nDice, err := strconv.Atoi(dice[0])
if err != nil {
return false
}
sides, err := strconv.Atoi(dice[1])
if err != nil {
return false
}
if sides < 2 || nDice < 1 || nDice > 20 {
p.Bot.SendMessage(channel, "You're a dick.")
return true
}
rolls := fmt.Sprintf("%s, you rolled: ", message.User.Name)
for i := 0; i < nDice; i++ {
rolls = fmt.Sprintf("%s %d", rolls, rollDie(sides))
if i != nDice-1 {
rolls = fmt.Sprintf("%s,", rolls)
} else {
rolls = fmt.Sprintf("%s.", rolls)
}
}
p.Bot.SendMessage(channel, rolls)
return true
}
}
return false
}
// Help responds to help requests. Every plugin must implement a help function.
func (p *DicePlugin) Help(channel string, parts []string) {
p.Bot.SendMessage(channel, "Roll dice using notation XdY. Try \"3d20\".")
}
// Empty event handler because this plugin does not do anything on event recv
func (p *DicePlugin) Event(kind string, message msg.Message) bool {
return false
}
// Handler for bot's own messages
func (p *DicePlugin) BotMessage(message msg.Message) bool {
return false
}
// Register any web URLs desired
func (p *DicePlugin) RegisterWeb() *string {
return nil
}