tommy
/
melody
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Browse Source

gophers example

master
Ola Holmström 9 years ago
parent
5a3ec43235
commit
dfa17ad2ae
4 changed files with 206 additions and 14 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 88
      README.md
  2. BIN
      examples/gophers/demo.gif
  3. 70
      examples/gophers/index.html
  4. 62
      examples/gophers/main.go

88
README.md
View File

@ -21,19 +21,16 @@ your way so you can write real-time apps. Features include:
go get github.com/olahol/melody go get github.com/olahol/melody
``` ```
## [Example](https://github.com/olahol/melody/tree/master/examples)
## [Example: chat](https://github.com/olahol/melody/tree/master/examples/chat)
[Multi channel chat server](https://github.com/olahol/melody/tree/master/examples/multichat),
error handling left as en exercise for the developer.
[![Chat demo](https://cdn.rawgit.com/olahol/melody/master/examples/chat/demo.gif "Demo")](https://github.com/olahol/melody/tree/master/examples/multichat)
[![Chat](https://cdn.rawgit.com/olahol/melody/master/examples/chat/demo.gif "Demo")](https://github.com/olahol/melody/tree/master/examples/chat)
```go ```go
package main package main
import ( import (
"github.com/olahol/melody"
"github.com/gin-gonic/gin" "github.com/gin-gonic/gin"
"github.com/olahol/melody"
"net/http" "net/http"
) )
@ -45,24 +42,87 @@ func main() {
http.ServeFile(c.Writer, c.Request, "index.html") http.ServeFile(c.Writer, c.Request, "index.html")
}) })
r.GET("/channel/:name", func(c *gin.Context) {
http.ServeFile(c.Writer, c.Request, "chan.html")
})
r.GET("/channel/:name/ws", func(c *gin.Context) {
r.GET("/ws", func(c *gin.Context) {
m.HandleRequest(c.Writer, c.Request) m.HandleRequest(c.Writer, c.Request)
}) })
m.HandleMessage(func(s *melody.Session, msg []byte) { m.HandleMessage(func(s *melody.Session, msg []byte) {
m.BroadcastFilter(msg, func(q *melody.Session) bool {
return q.Request.URL.Path == s.Request.URL.Path
})
m.Broadcast(msg)
}) })
r.Run(":5000") r.Run(":5000")
} }
``` ```
## [Example: gophers](https://github.com/olahol/melody/tree/master/examples/gophers)
[![Gophers](https://cdn.rawgit.com/olahol/melody/master/examples/gophers/demo.gif "Demo")](https://github.com/olahol/melody/tree/master/examples/gophers)
```go
package main
import (
"github.com/gin-gonic/gin"
"github.com/olahol/melody"
"net/http"
"strconv"
"strings"
"sync"
)
type GopherInfo struct {
ID, X, Y string
}
func main() {
router := gin.Default()
mrouter := melody.New()
gophers := make(map[*melody.Session]*GopherInfo)
lock := new(sync.Mutex)
counter := 0
router.GET("/", func(c *gin.Context) {
http.ServeFile(c.Writer, c.Request, "index.html")
})
router.GET("/ws", func(c *gin.Context) {
mrouter.HandleRequest(c.Writer, c.Request)
})
mrouter.HandleConnect(func(s *melody.Session) {
lock.Lock()
for _, info := range gophers {
s.Write([]byte("set " + info.ID + " " + info.X + " " + info.Y))
}
gophers[s] = &GopherInfo{strconv.Itoa(counter), "0", "0"}
s.Write([]byte("iam " + gophers[s].ID))
counter += 1
lock.Unlock()
})
mrouter.HandleDisconnect(func(s *melody.Session) {
lock.Lock()
mrouter.BroadcastOthers([]byte("dis "+gophers[s].ID), s)
delete(gophers, s)
lock.Unlock()
})
mrouter.HandleMessage(func(s *melody.Session, msg []byte) {
p := strings.Split(string(msg), " ")
lock.Lock()
info := gophers[s]
if len(p) == 2 {
info.X = p[0]
info.Y = p[1]
mrouter.BroadcastOthers([]byte("set "+info.ID+" "+info.X+" "+info.Y), s)
}
lock.Unlock()
})
router.Run(":5000")
}
```
### [More examples](https://github.com/olahol/melody/tree/master/examples) ### [More examples](https://github.com/olahol/melody/tree/master/examples)
## [Documentation](https://godoc.org/github.com/olahol/melody) ## [Documentation](https://godoc.org/github.com/olahol/melody)

BIN
examples/gophers/demo.gif
View File

Side by Side

After

Width: 1663  |  Height: 723  |  Size: 596 KiB

70
examples/gophers/index.html
View File

@ -0,0 +1,70 @@
<html>
<head>
<meta charset="utf-8">
<title>goofy gophers</title>
<style>
body {
cursor: none;
overflow: hidden;
}
.gopher {
background-image: url('https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/Go_gopher_mascot_bw.png/768px-Go_gopher_mascot_bw.png');
width: 95px;
height: 95px;
background-size: cover;
position: absolute;
left: 0px;
top: 0px;
}
</style>
</head>
<body>
<script>
var url = "ws://" + window.location.host + "/ws";
var ws = new WebSocket(url);
var myid = -1;
ws.onmessage = function (msg) {
var cmds = {"iam": iam, "set": set, "dis": dis};
if (msg.data) {
var parts = msg.data.split(" ")
var cmd = cmds[parts[0]];
if (cmd) {
cmd.apply(null, parts.slice(1));
}
}
};
function iam(id) {
myid = id;
}
function set(id, x, y) {
var node = document.getElementById("gopher-" + id);
if (!node) {
node = document.createElement("div");
document.body.appendChild(node);
node.className = "gopher";
node.style.zIndex = id + 1;
node.id = "gopher-" + id;
}
node.style.left = x + "px";
node.style.top = y + "px";
}
function dis(id) {
var node = document.getElementById("gopher-" + id);
if (node) {
document.body.removeChild(node);
}
}
window.onmousemove = function (e) {
if (myid > -1) {
set(myid, e.pageX, e.pageY);
ws.send([e.pageX, e.pageY].join(" "));
}
}
</script>
</body>
</html>

62
examples/gophers/main.go
View File

@ -0,0 +1,62 @@
package main
import (
"github.com/gin-gonic/gin"
"github.com/olahol/melody"
"net/http"
"strconv"
"strings"
"sync"
)
type GopherInfo struct {
ID, X, Y string
}
func main() {
router := gin.Default()
mrouter := melody.New()
gophers := make(map[*melody.Session]*GopherInfo)
lock := new(sync.Mutex)
counter := 0
router.GET("/", func(c *gin.Context) {
http.ServeFile(c.Writer, c.Request, "index.html")
})
router.GET("/ws", func(c *gin.Context) {
mrouter.HandleRequest(c.Writer, c.Request)
})
mrouter.HandleConnect(func(s *melody.Session) {
lock.Lock()
for _, info := range gophers {
s.Write([]byte("set " + info.ID + " " + info.X + " " + info.Y))
}
gophers[s] = &GopherInfo{strconv.Itoa(counter), "0", "0"}
s.Write([]byte("iam " + gophers[s].ID))
counter += 1
lock.Unlock()
})
mrouter.HandleDisconnect(func(s *melody.Session) {
lock.Lock()
mrouter.BroadcastOthers([]byte("dis "+gophers[s].ID), s)
delete(gophers, s)
lock.Unlock()
})
mrouter.HandleMessage(func(s *melody.Session, msg []byte) {
p := strings.Split(string(msg), " ")
lock.Lock()
info := gophers[s]
if len(p) == 2 {
info.X = p[0]
info.Y = p[1]
mrouter.BroadcastOthers([]byte("set "+info.ID+" "+info.X+" "+info.Y), s)
}
lock.Unlock()
})
router.Run(":5000")
}
Write Preview
Loading…
Cancel
Save