Challenge: Prototype Pattern

Problem statement

In this challenge, you have to implement a Ninja fighting game using the prototype pattern.

You have already been given the Ninja constructor function, which will be used to create a ninja object. A ninja should have the following properties:

• name

• points

The points are set to 100 by default upon the instantiation of a Ninja object.

A ninja can pull the following moves in a fight:

• punch: ninjas points reduce by 20 if they get a punch

• kick: ninjas points reduce by 50 if they get a kick

A ninja can only kick or punch the other ninja if the following conditions are met:

• The other ninja’s points are greater than 0.

• The points of the ninja himself are also greater than 0.

If the two conditions above are met, you should return the points of the other ninja as follows:

`{other ninja's "name"} points are {other ninja's "points"}`

If the conditions are not met, you should return the following if a punch was attempted:

`Can't punch {other ninja's name}`

And the following if a kick was attempted:

`Can't kick {other ninja's name}`

Input

Two ninjas fighting

Output

The points of the ninja after being hit or the “Can’t kick/punch” message

Sample input

var ninja1 = new Ninja('Ninja1')
var ninja2 = new Ninja('Ninja2')

ninja1.kick(ninja2)
ninja2.punch(ninja1)
ninja1.kick(ninja2) 
ninja1.punch(ninja2) 
ninja2.kick(ninja1)

Sample output

"Ninja2's points are 50"	
"Ninja1's points are 80"	
"Ninja2's points are 0"
"Can't punch Ninja2"
"Can't kick Ninja1"