review adventure game notes

KEY TAKEAWAYS: graph as data structures --> taking what we learned 

google node.js command line tool npm to find other similar node programs 

step by step
	1. node.js specs:
		- set up your constructor function
		- put a connect fn on the prototype
	2. connection
		- make a new one w the connection constructor
			add value & name props
	3. check to see if the connection property exists
		if not:
		- push it into the array
		- add it to the conditions obj
	4. game specs:
		- game constructor fn
		- add node fn
			check if it's already on the object
			if not create a node
		- get node fn
			return the node
		- connect fn
			takes three parameters (takes a third one, condition from the game source file)
			use the getnode func to access the nodes
	5. player.js
		how inquirer works: once the choice is selected, it (the choice object) is passed to the callback function as a parameter. the "name" in the question object becomes the object's key and the value in the question obj becomes the question objs value
		1. build a play function
			use the node to access the message and then call the next answer back into your function
			you have to make sure there are no choices left otherwise it will throw an error (see first if statement)
			a promise is an object that gets data from something that does not exist yet
			promise resolve is a utlity that lets you create a promise and give it a value - u need to call then to get the value out

they are different files because they are modules -- they are representing different parts of a flowchart

nodes are the circles, connections (referred to as edges) are the lines, the game is the graph

we put conditions in a object so we can ensure we do not have duplicate conditions

we put connections in an array to retain the ordering of the connections

graphs: extends beyond adventure games; social networks, neural networks, streets & directions, all use graphs!