80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package sphero
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import (
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"io"
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"gobot.io/x/gobot"
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"github.com/tarm/serial"
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)
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// Adaptor represents a Connection to a Sphero
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type Adaptor struct {
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name string
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port string
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sp io.ReadWriteCloser
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connected bool
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connect func(string) (io.ReadWriteCloser, error)
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}
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// NewAdaptor returns a new Sphero Adaptor given a port
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func NewAdaptor(port string) *Adaptor {
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return &Adaptor{
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name: gobot.DefaultName("Sphero"),
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port: port,
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connect: func(port string) (io.ReadWriteCloser, error) {
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return serial.OpenPort(&serial.Config{Name: port, Baud: 115200})
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},
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}
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}
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// Name returns the Adaptor's name
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func (a *Adaptor) Name() string { return a.name }
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// SetName sets the Adaptor's name
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func (a *Adaptor) SetName(n string) { a.name = n }
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// Port returns the Adaptor's port
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func (a *Adaptor) Port() string { return a.port }
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// SetPort sets the Adaptor's port
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func (a *Adaptor) SetPort(p string) { a.port = p }
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// Connect initiates a connection to the Sphero. Returns true on successful connection.
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func (a *Adaptor) Connect() (err error) {
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sp, e := a.connect(a.Port())
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if e != nil {
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return e
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}
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a.sp = sp
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a.connected = true
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return
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}
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// Reconnect attempts to reconnect to the Sphero. If the Sphero has an active connection
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// it will first close that connection and then establish a new connection.
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// Returns true on Successful reconnection
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func (a *Adaptor) Reconnect() (err error) {
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if a.connected {
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a.Disconnect()
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}
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return a.Connect()
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}
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// Disconnect terminates the connection to the Sphero. Returns true on successful disconnect.
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func (a *Adaptor) Disconnect() error {
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if a.connected {
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if e := a.sp.Close(); e != nil {
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return e
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}
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a.connected = false
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}
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return nil
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}
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// Finalize finalizes the Sphero Adaptor
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func (a *Adaptor) Finalize() error {
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return a.Disconnect()
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}
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