Why isn't the javascript working?

devplayer63572 · July 17, 2016, 1:35am

I am trying to get a distribution of stars and planets without using a background image.

So I am using javascript for the shapes.

Here is the javascript code for the first blue star:

ellipse(20,20,20,20);
fill(0,0,255);

So why is this not showing up when there is a script tag in the HTML? It should be showing up at x=20, y=20 as a blue circle with a diameter of 20px.

mtf · July 17, 2016, 2:16am

What is the fourth 20 for?

devplayer63572 · July 17, 2016, 2:29am

The first 2 are for size and the second 2 are for coordinates. So this should give me a 20px circle at coordinates (20,20). However, it isn’t giving me anything.

mtf · July 17, 2016, 2:33am

So what you’re saying is that this will give an ellipse?

ellipse(30, 20, 20, 20)

devplayer63572 · July 17, 2016, 2:37am

Yes, that is what I was taught in javascript is that the code for an ellipse has the 2 diameters first and then the coordinates and it should give you an ellipse. Now of course this was with JS + processing JS so maybe that’s why but yes that code to my knowledge should give you an ellipse and not nothing.

mtf · July 17, 2016, 2:47am

We don’t have processing.js at our disposal in Codebits. You might need to find a sandbox that supports it, or look into creating your own local installation.

Canvas is available, but not very robust without a processing.js overlay. It takes a lot more code to do the same things.