Added JSON marshaller for players.

cmd/mtwebmapper/players.go

@@ -1,16 +1,47 @@
 package main
 
-import "net/http"
+import (
+	"bytes"
+	"html/template"
+	"net/http"
+)
+
+var geoJSONTmpl = template.Must(template.New("geojson").Parse(
+	`{ "type": "Feature",
+  "geometry": {
+    "type": "Point",
+    "coordinates": [{{.X}}, {{.Z}}]
+  },
+  "properties": {
+    "name": {{.Name || html }}
+  }
+}`))
+
+type player struct {
+	X    float64
+	Y    float64
+	Z    float64
+	Name string
+}
 
 type players struct {
 	fifo string
 	wsf  *websocketForwarder
+	pls  []*player
 }
 
 func newPlayers(fifo string, wsf *websocketForwarder) *players {
 	return &players{fifo: fifo, wsf: wsf}
 }
 
+func (p *player) MarshalJSON() ([]byte, error) {
+	var buf bytes.Buffer
+	if err := geoJSONTmpl.Execute(&buf, p); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
 func (ps *players) run() {
 	for {
 		// TODO: Implement me!