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284 lines
8.0 KiB
Go
284 lines
8.0 KiB
Go
package main
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import (
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"fmt"
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"sort"
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// "strconv"
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"strings"
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)
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var commandRegistry map[string]*Command
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type Command struct {
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name string
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help string
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arity int
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variadic bool
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handler func(*Connection, ...string)
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debug bool // marks command as a debug mode command
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}
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type CommandSuite interface {
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GetCommand(name string) *Command
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Commands() []Command
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}
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func (c Command) GetCommand(name string) *Command {
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if name == c.name {
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return &c
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}
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return nil
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}
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func (c Command) Commands() []Command {
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return []Command{c}
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}
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type CommandSet []Command
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func (c CommandSet) GetCommand(name string) *Command {
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for _, cmd := range c {
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if cmd.name == name {
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return &cmd
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}
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}
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return nil
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}
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func (c CommandSet) Commands() []Command {
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return []Command(c)
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}
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// var gotoCommand = &Command{
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// name: "goto",
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// help: "travel between systems",
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// arity: 1,
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// handler: func(c *Connection, args ...string) {
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// dest, err := GetSystem(args[0])
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// if err != nil {
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// c.Printf("%v\n", err)
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// break
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// }
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// return NewTravel(c, i.System, dest)
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// },
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// }
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// var infoCommand = &Command{
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// name: "info",
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// help: "gives you some info about your current position",
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// handler: func(conn *Connection, args ...string) {
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// conn.Printf("current planet: %v\n", conn.System())
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// conn.Printf("bombs: %d\n", conn.bombs)
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// conn.Printf("money: %d space duckets\n", conn.money)
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// },
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// }
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// var nearbyCommand = &Command{
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// name: "nearby",
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// help: "list objects nearby",
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// handler: func(conn *Connection, args ...string) {
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// system := conn.System()
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// neighbors, err := system.Nearby(25)
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// if err != nil {
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// log_error("unable to get neighbors: %v", err)
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// return
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// }
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// conn.Printf("--------------------------------------------------------------------------------\n")
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// conn.Printf("%-4s %-20s %s\n", "id", "name", "distance")
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// conn.Printf("--------------------------------------------------------------------------------\n")
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// for _, neighbor := range neighbors {
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// other := index[neighbor.id]
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// conn.Printf("%-4d %-20s %v\n", other.id, other.name, neighbor.distance)
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// }
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// conn.Printf("--------------------------------------------------------------------------------\n")
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// },
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// }
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var helpCommand = Command{
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name: "help",
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help: "helpful things to help you",
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handler: func(conn *Connection, args ...string) {
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msg := `
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Star Dragons is a stupid name, but it's the name that Brian suggested. It has
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nothing to do with Dragons.
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Anyway, Star Dragons is a game of cunning text-based, real-time strategy. You
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play as some kind of space-faring entity, faring space in your inspecific
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space-faring vessel. If you want a big one, it's big; if you want a small one,
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it's small. If you want a pink one, it's pink, if you want a black one, it's
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black. And so on, and so forth. It is the space craft of your dreams. Or
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perhaps you are one of those insect-like alien races and you play as the queen.
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Yeah, that's the ticket! You're the biggest baddest queen bug in space.
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In Star Dragons, you issue your spacecraft (which is *not* called a Dragon)
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textual commands to control it. The objective of the game is to be the first
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person or alien or bug or magical space ponycorn to eradicate three enemy
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species. Right now that is the only win condition.
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All of the systems present in Star Dragons are named and positioned after known
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exoplanet systems. When attempting to communicate from one star system to
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another, it takes time for the light of your message to reach the other star
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systems. Star systems that are farther away take longer to communicate with.
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`
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msg = strings.TrimSpace(msg)
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fmt.Fprintln(conn, msg)
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if len(args) == 0 {
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fmt.Fprintln(conn, `use the "commands" command for a list of commands.`)
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fmt.Fprintln(conn, `use "help [command-name]" to get info for a specific command.`)
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return
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}
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for _, cmdName := range args {
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cmd, ok := commandRegistry[cmdName]
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if !ok {
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conn.Printf("no such command: %v\n", cmdName)
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continue
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}
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conn.Printf("%v: %v\n", cmdName, cmd.help)
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}
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},
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}
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var commandsCommand = Command{
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name: "commands",
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help: "gives you a handy list of commands",
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handler: func(conn *Connection, args ...string) {
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names := make([]string, 0, len(commandRegistry))
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for name, _ := range commandRegistry {
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names = append(names, name)
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}
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sort.Strings(names)
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fmt.Fprintln(conn, "--------------------------------------------------------------------------------")
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for _, name := range names {
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cmd := commandRegistry[name]
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conn.Printf("%-16s %s\n", name, cmd.help)
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}
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fmt.Fprintln(conn, "--------------------------------------------------------------------------------")
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},
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}
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// var broadcastCommand = &Command{
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// name: "broadcast",
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// help: "broadcast a message for all systems to hear",
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// handler: func(conn *Connection, args ...string) {
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// msg := strings.Join(args, " ")
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// system := conn.System()
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// b := NewBroadcast(system, msg)
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// log_info("player %s send broadcast from system %s: %v\n", conn.Name(), system.Label(), msg)
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// currentGame.Register(b)
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// },
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// }
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// var gotoCommand = &Command{
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// name: "goto",
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// help: "moves to a different system, specified by either name or ID",
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// handler: func(conn *Connection, args ...string) {
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// dest_name := strings.Join(args, " ")
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// to, ok := nameIndex[dest_name]
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// if ok {
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// conn.TravelTo(to)
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// return
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// }
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//
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// id_n, err := strconv.Atoi(dest_name)
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// if err != nil {
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// conn.Printf(`hmm, I don't know a system by the name "%s", try something else`, dest_name)
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// return
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// }
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//
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// to, ok = index[id_n]
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// if !ok {
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// conn.Printf(`oh dear, there doesn't seem to be a system with id %d`, id_n)
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// return
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// }
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// conn.TravelTo(to)
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// },
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// }
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// var colonizeCommand = &Command{
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// name: "colonize",
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// help: "establishes a mining colony on the current system",
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// handler: func(conn *Connection, arg ...string) {
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// system := conn.System()
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// if conn.money > 2000 {
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// conn.Withdraw(2000)
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// if system.colonizedBy != nil {
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// system.colonizedBy.Printf("your colony on %s has been stolen by %s\n", system.Label(), conn.Name())
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// }
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// system.colonizedBy = conn
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// conn.Printf("set up a mining colony on %s\n", conn.System().name)
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// } else {
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// conn.Printf("not enough money! it costs 2000 duckets to start a mining colony\n")
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// }
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// },
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// }
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var winCommand = Command{
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name: "win",
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help: "win the game.",
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debug: true,
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handler: func(conn *Connection, args ...string) {
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conn.Win("win-command")
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},
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}
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// var bombCommand = &Command{
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// name: "bomb",
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// help: "bombs a system, with a big space bomb",
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// handler: func(conn *Connection, args ...string) {
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// dest_name := strings.Join(args, " ")
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// to, ok := nameIndex[dest_name]
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// if ok {
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// conn.SendBomb(to)
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// return
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// }
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//
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// id_n, err := strconv.Atoi(dest_name)
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// if err != nil {
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// conn.Printf(`hmm, I don't know a system by the name "%s", try something else\n`, dest_name)
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// return
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// }
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//
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// to, ok = index[id_n]
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// if !ok {
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// conn.Printf(`oh dear, there doesn't seem to be a system with id %d\n`, id_n)
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// return
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// }
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// conn.SendBomb(to)
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// },
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// }
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// var mkBombCommand = &Command{
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// name: "mkbomb",
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// help: "make a bomb. Costs 500 space duckets",
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// handler: func(conn *Connection, args ...string) {
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// if conn.money < 500 {
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// conn.Printf("not enough money! Bombs cost 500 space duckets to build, you only have %d in the bank.\n", conn.money)
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// return
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// }
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// conn.Withdraw(500)
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// conn.bombs += 1
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// conn.Printf("built a bomb!\n")
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// conn.Printf("bombs: %d\n", conn.bombs)
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// conn.Printf("money: %d space duckets\n", conn.money)
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// },
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// }
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var playersCommand = Command{
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name: "players",
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help: "lists the connected players",
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handler: func(conn *Connection, args ...string) {
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for other, _ := range currentGame.connections {
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conn.Printf("%v\n", other.Name())
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}
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},
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}
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var balCommand = Command{
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name: "bal",
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help: "displays your current balance in space duckets",
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handler: func(conn *Connection, args ...string) {
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fmt.Fprintln(conn, conn.money)
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},
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}
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