Question about the minigolf tutorial

MIT App Inventor Help
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1

Hi there, my question is probably too basic but I'm starting with this and I can't understand why do we use this function:

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Ifit is a random position and I write the next:
Random integer from hole radius
To canvas1 width – hole radius

That means that my ball will start from at least a distance of its radius until the width of the canvas less its radius? but if I start in the middle of the canvas the ball will go over the edge. Thank you for your help!

2

Assuming the ball is much smaller than the canvas, that just makes sure the ball doesn't stick out over the edge of the canvas.

1 Like
3

Ok I got it, I was assuming that the initial possition started from the final possition of the ball (plus the radius to the canvas width less the radius), so now I understand that 0 position is the left limit of the canvas. Thank you so much!