lunar-mud/objects.go

package main

import "fmt"

type Object struct {
	// Required

	Id   Id
	Kind Kind
	Name string

	// Optional (Based on Kind)

	Description    string
	Password       string
	Location       Id
	Owner          Id
	Health         ValueRange
	Magic          ValueRange
	BuildPoints    ValueRange
	Level          uint16
	Experience     ValueRange
	Inventory      map[Id]uint64
	Exits          map[string]Id
	Motd           string
	CoOwner        Id
	SeniorOfficers []Id
	Officers       []Id
	Members        []Id
}

func (o *Object) valid() bool {
	if o.Kind == KPlayer && len(o.Password) == 0 {
		return false
	}
	return IsValid(o.Id) && IsValid(o.Kind) && len(o.Name) != 0
}

func (o *Object) render() string {
	var out string = ""
	switch o.Kind {
	case KPlayer, KCreature:
		out += fmt.Sprintf("%s the %s (%s)", o.Name, o.Kind.render(), o.Id.render())
		out += "\n"
		if len(o.Description) != 0 {
			out += fmt.Sprintf("%s", o.Description)
			out += "\n"
		}
		if IsValid(o.Location) {
			out += fmt.Sprintf("Located at %s", o.Location.render())
			out += "\n"
		}
		if IsValid(o.Owner) {
			out += fmt.Sprintf("Owned by %s", o.Owner.render())
			out += "\n"
		}
		if IsValid(o.Health) {
			out += fmt.Sprintf("%s Health", o.Health.render())
			out += "\n"
		}
		if IsValid(o.Magic) {
			out += fmt.Sprintf("%s Magic Points", o.Magic.render())
			out += "\n"
		}
		if IsValid(o.BuildPoints) {
			out += fmt.Sprintf("%s Build Points", o.BuildPoints.render())
			out += "\n"
		}
		if o.Level != 0 && o.Experience.Max != 0 {
			out += fmt.Sprintf("Level %d and %s Experience Points", o.Level, o.Experience.render())
			out += "\n"
		}
	default:
		return "Object.render() >> Unknown/Unsupported Kind"
	}
	return out
}