game instance vs data object method

[douglas]

I don't understand why i can't use the game instance instead of Phaser.Math.PI2 in this scratch code

https://jsfiddle.net/johndo101/cfx0zxo3/

Here you can find a pointer i use to understand javascript :

• prototype -> http://www.w3schools.com/js/js_object_prototypes.asp
• data object method -> http://www.w3schools.com/js/js_object_methods.asp

[mattstyles]

`game` is an instance of Phaser.Game, not an instance of Phaser, although its unlikely that a constructor would copy over dynamic members from Phaser even if it was. Hence Math is not defined and you're trying to access a member of an undefined variable and therefore explosion.

Re-read those links you posted, particularly in reference to adding members to a prototype.

From your point of view it pretty much works the same as any other C-like language.