mirror of https://github.com/Askill/r_place.git
84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"log"
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"net/http"
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"time"
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"github.com/gorilla/websocket"
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)
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 2048,
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WriteBufferSize: 2048,
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}
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var img = GetImage(1000, 1000)
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func get(w http.ResponseWriter, r *http.Request) {
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c, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Print("error while upgrading", err)
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return
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}
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defer c.Close()
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ticker := time.NewTicker(1 * time.Second)
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var refImage = GetImage(img.width, img.height)
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var tmpImage = GetImage(img.width, img.height)
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for range ticker.C {
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copy(refImage.pixels, img.pixels)
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diff := tmpImage.GetDiff(&refImage)
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for i := 0; i < int(diff.width*diff.height); i++ {
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pix := diff.pixels[i]
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if pix.pixel.UserID != 0 {
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x := i / int(diff.width)
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y := i % int(diff.height)
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msg := Message{X: uint32(x), Y: uint32(y), Timestamp: pix.pixel.Timestamp, UserID: pix.pixel.UserID, Color: pix.pixel.Color}
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marshalMsg, err := json.Marshal(msg)
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if err != nil {
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log.Println("error while writing image", err)
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break
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}
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err = c.WriteMessage(1, marshalMsg)
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}
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}
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copy(tmpImage.pixels, refImage.pixels)
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}
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}
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func set(w http.ResponseWriter, r *http.Request) {
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c, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Print("error while upgrading", err)
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return
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}
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defer c.Close()
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for {
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_, msg, err := c.ReadMessage()
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if err != nil {
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log.Println("read:", err)
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break
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}
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message := Message{}
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json.Unmarshal(msg, &message)
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img.SetPixel(message)
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}
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}
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func main() {
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var addr = flag.String("addr", "localhost:8080", "http service address")
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flag.Parse()
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log.SetFlags(0)
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log.Println("starting server on", *addr)
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http.HandleFunc("/get", get)
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http.HandleFunc("/set", set)
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log.Fatal(http.ListenAndServe(*addr, nil))
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}
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