Could be a bug in M5Stack Library

https://twitter.com/m5stack/status/1040211040007540736

• Code of conduct
• Contributing
• Issue templates
• Pull request template

http://blog-yama.a-quest.com/?eid=970195

• auto resize text to fit balloon
• large balloon for large text
• use color palette
• make border

Another issue caused of #7.
Need an API for handling auto-avatar-updating tasks such as blink, saccade and breath.

not a bunch of drawing function like fillRect or drawTriangle but just a bitmap pattern for face parts would be lovely.

Make some web API to change face parts and colors

exampleのディレクトリ構造は、talk/talk.ino のような形にしたほうが、IDEのスケッチ例から参照できるのでより良いかと

https://silentworlds.info/2018/07/05/post-381/

Lipsync function should not depend on aquestalk implementation but kinda Voice interface

for easiness

Related below maybe.
m5stack/M5Stack#52

This function is necessary especially for coexisting with sprite rendering.Current implementation of draw() with sprite updates the whole area of face (= whole display for now).But users should want to other elements as well.

• Normal
• Cute
• Round
• Robotic
• Kitty
• Scary
• Emoticon

In Avatar.cpp avatar's loop functions use delay() instead of vTaskDelay(). This means these tasks never release their resources untill interruption by other tasks that have higher priority.
It should use vTaskDelay() and follow the FreeRTOS way.

m5stack/M5Stack@e9c60a5

Not only AquesTalkTTS but also Playing buzzer or audio file should be used as avatar voice

manifest.json may have flaw.

Describe the bug
The compiler doesn't recognize AquesTalkTTS sources in this library then fails to compile

To Reproduce
Steps to reproduce the behavior:

1. setup aquestalk_esp32 library except copying AquesTalkTTS sources
2. compile

Expected behavior
You don't need to copy AquesTalkTTS files. They are included in this library.

Logs
Compile error appears.

Environment (please complete the following information):

• OS: Linuxsources
• IDE: VSCode with PlatformIO
• Versions
• This library(M5Stack-Avatar)
• M5Stack

Code to reproduce: https://github.com/tacck/m5stack-shake-avatar/blob/master/m5stack-shake-avatar.ino#L92

Without the delay(20), the value from MPU9250
diverges

• Install as Arduino IDE library
• Install from PlatformIO

We should contain drawLoop and stateUpdate such as succade and breath in the library.
For now we write them on our sketch like below. But It's slight annoying.

void saccade(void *args)
{
  for(;;)
  {
    float vertical = (float)rand()/(float)(RAND_MAX / 2) - 1;
    float horizontal = (float)rand()/(float)(RAND_MAX / 2) - 1;
    avator->setGaze(vertical, horizontal);
    delay(500 + 100 * random(20));
  }
}

void setup()
{
  xTaskCreatePinnedToCore(
                    saccade,     /* Function to implement the task */
                    "saccade",   /* Name of the task */
                    4096,      /* Stack size in words */
                    NULL,      /* Task input parameter */
                    3,         /* Priority of the task */
                    NULL,      /* Task handle. */
                    1);        /* Core where the task should run */
}

The main cause of #34 is that I ignored all the compile warnings without -Werror flag.
If this flag enabled, thus tihs library cannot be compiled.

So I've decided to destroy all the warnings using -Werror=all.

Describe the bug
Code crash in setup() when Avatar library and WiFi is used together. There is no compilation error.

To Reproduce
Compile the following source code, in platform IO, upload to M5Stack-fire. View the serial monitor.

#include <Arduino.h>
#include <M5Stack.h>
#include <WiFi.h>
#include <Avatar.h>

using namespace m5avatar;

const char* ssid = "ssid";
const char* password = "passwd";
Avatar avatar;

void setup_wifi(){
  delay(10);
  WiFi.begin(ssid, password);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  while(WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void setup() {
  M5.begin();
  Serial.begin(115200);
  Serial.println("Init wifi");
  setup_wifi();
  Serial.println("Init avatar");
  avatar.init();
  Serial.println("Done");
}

void loop() {
  // put your main code here, to run repeatedly:
}

Platformio config is here

[env:m5stack-fire]
platform = espressif32
board = m5stack-fire
framework = arduino
monitor_speed = 115200

lib_deps = meganetaaan/M5Stack-Avatar@^0.7.3

Expected behavior
Code should work run on m5stack-fire. It should not cause the device to rebook.

Logs
If any compile error occurs, add a full compile log.

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (please complete the following information):

• OS: Windows
• IDE: VSCode with PlatformIO plugin
• Versions
• This library(M5Stack-Avatar): M5Stack-Avatar@^0.7.3
• M5Stack: 0.3.4

Additional context

This is run on M5Stack-fire

Output from serial monitor when running the code

Init wifi

Connecting to ssid
.....
WiFi connected
IP address:
192.168.0.149
Init avatar
Guru Meditation Error: Core  0 panic'ed (Unhandled debug exception)
Debug exception reason: Stack canary watchpoint triggered (drawLoop)

ELF file SHA256: 0000000000000000

Backtrace: 0x4008bc54:0x3ffcc910 0x4008d212:0x3ffcc920 0x4008d391:0x3ffcc9f0 0x4008d675:0x3ffcca10 0x40089422:0x3ffcca30 0x4008d1d1:0x3ffccaf0 0x4008d44d:0x3ffccb10 0x4008918d:0x3ffccb30 0x400892b9:0x3ffccb60 0x400f5bef:0x3ffccb80 0x400f1efd:0x3ffcce40 0x400f1e98:0x3ffcce90 0x4008f475:0x3ffccec0 0x40091483:0x3ffccef0 0x40091abd:0x3ffccf10 0x40081f59:0x3ffccf30 0x40082130:0x3ffccf50 0x400815d7:0x3ffccf70 0x40142979:0x3ffccf90 0x401429fe:0x3ffccfb0 0x400d5eec:0x3ffccfd0 0x400d5243:0x3ffcd010 0x400d526f:0x3ffcd060 0x4008e452:0x3ffcd080

Rebooting...
```

Describe the bug

Compile error on Effect.h
https://twitter.com/7L4QOI/status/1027828099172298753

It seems simple to resize the avatar, but is there a way to move it on the display? If not, could this be addressed? Thanks!

From this post
m5stack-avatarのコンパイルエラー | Kishima blog

Avator -> Avatar.

Describe the bug

• a badge on the top of README is now 404.

To Reproduce
Steps to reproduce the behavior:

1. See README
2. See?

Screenshots

Describe the bug
After the face appears, it will reboot.

To Reproduce
If you build with Arduino-esp32 2.0.0 or later, Avatar repeatedly reboots, and if you change the version back to 1.0.6 in the ArduinoIDE board manager, it works fine.

I have confirmed the phenomenon with M5Core2.

First we need an animation library like Tween...

for memory and CPU efficiency

rotate/scale/translate face