Hecatoncheir

import 'dart:convert';
import 'dart:io';
import 'dart:typed_data';
import 'dart:ui' as ui;

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:nft/services/safety/base_stateful.dart';
import 'package:nft/widgets/p_appbar_transparency.dart';
import 'package:path_provider/path_provider.dart';

Hecatoncheir

import 'dart:ui';

import 'package:flutter/material.dart';
import 'dart:math';

const double kBoidVelocity = 5.0;
const double kBoidScale = 2.0;
const int kBoidCount = 100;
const double kBoidMaxAvoidSteerSpeed = .1;
// Angles above maxAlignAngle are treeted the same (caps the turn speed).

Hecatoncheir

ffmpeg -y -i video.webm -vf palettegen palette.png

ffmpeg -y -i video.webm -i palette.png -filter_complex paletteuse -r 10 animation.gif

Source: http://www.ubuntubuzz.com/2017/08/convert-mp4-webm-video-to-gif-using-ffmpeg.html

Hecatoncheir

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

Hecatoncheir

import 'package:flutter/material.dart';
import 'package:rect_getter/rect_getter.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Fab overlay transition',

Hecatoncheir

import 'dart:math' as math;

import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';

/// Signature for a function that creates a [TileSize] for a given index.
typedef TileSize IndexedTileSizeBuilder(int index);

/// Creates grid layouts with a fixed number of spans in the cross axis.

Hecatoncheir

# See docs/examples
# http://doc.gitlab.com/ce/ci/quick_start/README.html
# http://doc.gitlab.com/ce/ci/yaml/README.html

# GitLab CI template for Go tests. Note this installs
# a new working copy of Go in a non-standard path such
# that sudo/root is not needed for the install stage.

# note that this particular install-environment stage
# is overly verbose in order to debug anything tricky

Hecatoncheir

# Replace "projectname" and "username"
image: golang:1.9

variables:
  BIN_NAME: projectname
  ARTIFACTS_DIR: artifacts
  GO_PROJECT: gitlab.com/username/projectname

stages:
  - build

Hecatoncheir

package main

import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

Hecatoncheir

How to build Golang windows/arm static binaries from linux

Alternate title: Cross compiling Windows/Darwin/Linux amd64/386/arm all from linux

After fumbling around trying to figure out the go toolchain and cross compilation configuration, I ran across the wiki page on Go's homepage. It's super helpful, and worked out of the box. I'm including the necessary scripts here in case they get changed or lost, and we can help Google find it (since it's the first real source I've found that "Just Worked"). http://code.google.com/p/go-wiki/wiki/WindowsCrossCompiling