From 318731fdbb4a858564e34aa6dc0803066bc0a43d Mon Sep 17 00:00:00 2001
From: Zhao Xin <7176466@qq.com>
Date: Thu, 1 Sep 2022 15:12:40 +0800
Subject: [PATCH] update

---
 sensehat.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/sensehat.js b/sensehat.js
index 370ef0c..8d8cf8b 100644
--- a/sensehat.js
+++ b/sensehat.js
@@ -22,7 +22,7 @@ const leds = [
 read_all_leds()
 
 io.on('connection', (client) => {
-    read_all_leds()
+    client.emit('leds', leds)
     client.on('action', ({ action, x, y }) => {
         console.log({ action, x, y })
         switch (action) {
@@ -37,14 +37,16 @@ io.on('connection', (client) => {
             case 'hello':
                 sense.flashMessage('HELLO', 1, blue)
                 sense.clear()
+                read_all_leds(true)
                 break
             case 'flash':
                 sense.clear([255, 255, 255])
                 setTimeout(sense.clear, 100)
-                setTimeout(read_all_leds, 200)
+                read_all_leds(true)
                 break
             case 'clear':
                 sense.clear()
+                read_all_leds(true)
                 break
             case 'temp':
                 read_all_leds()
@@ -52,16 +54,15 @@ io.on('connection', (client) => {
             default:
                 break
         }
-        read_all_leds()
+        io.emit('leds', leds)
     })
 })
 
-function read_all_leds() {
+function read_all_leds(zero = false) {
     const pixels = sense.getPixels()
     for (let y = 0; y < 8; y++) {
         for (let x = 0; x < 8; x++) {
-            leds[y][x] = sense.getPixel(x, y)[2] == 0 ? 0 : 1
+            leds[y][x] = zero || sense.getPixel(x, y)[2] == 0 ? 0 : 1
         }
     }
-    io.emit('leds', leds)
 }