theland

It is kind of the best thing ever

picture generator

https://github.com/AWestover/coolGames/tree/master/land-help

coolGames, land-help

this has the level generator code

dependencies

npm install NOT npm install package.json

mongodb stuff

NOTE SQL is no respecter of capitalization so the column names don't have camel casing...

single quotes for SQL stuff

SELECT * FROM information_schema.tables WHERE table_name='users';

please note postgresql and mysql ARE (subtly) different. ie INSERT command INSERT INTO test VALUES('hmm')

heroku:

to list hours left: (i am not sure if this is a problematic thing... no credit card registered yet...) heroku ps

https://devcenter.heroku.com/articles/heroku-postgresql#designating-a-primary-database

local install is good too

psql

very nice heroku pg:psql

really nice forum https://teamtreehouse.com/community/postgresql-database-deployed-on-heroku-possible-view-add-delete-rows-in-tables

the export command is good too.

for socket games

npm nodejs stuff in pacakges.json or something

notify.js is a fancier version of alerts ie alert("nasty"); versus $.notify("pretty");

website at theland.herokuapp.com

socket io and general js lessons learned:

"rooms" for semi private communication (private within a group) are important https://socket.io/docs/rooms-and-namespaces/

splice and slice

splice(x, length) deletes a section of an array slice(x, length) copies a section of an array

ellipse(x,y,w,h) diameter NOT radius...

for links via button press do window.location.href = "http://stackoverflow.com"; etc DO NOT hack css into a tag...

the virtue of not implementing everything yourself (always look up solutions before making them)

https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_cleartimeout clear timeout! I was going to make a hacky version of this myself... tracking times, it would have been very bad...

Interesting notes

In javascript you can write classes kind of like in java

class A { constructor() { this.w=1; } x() { return this.w; } }

class B extends A { constructor() { super(); } y() { return 3; } }

Use indexOf for arrays let x =[1,2,45,6]; x.indexOf(10) = -1 x.indexOf(1) = 0 kind of like python!

atom stuff

control p to go through files control shift p to do cooler stuff control g to go to a line

End