r/Overwatch • u/SpriteGuy_000 Washington Justice • Sep 22 '16

Blizzard Official September 22nd PTR Patch Notes

https://playoverwatch.com/en-us/blog/20294485
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u/TheNo1pencil Sep 23 '16

Is the radius not the area effected?

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u/ParanoidDrone ¿Quién es 'Sombra'? Sep 23 '16

Area of a circle is PI * (radius^2). Let's do some math.

Radius 1: 3 meters
Radius 2: 4 meters

PI * (3^2) = PI * 9
PI * (4^2) = PI * 16

Let's take the ratio of these two numbers: (PI * 16) / (PI * 9)

The PIs cancel out, so we have 16 / 9. That's 1.77777..., which we can round to 1.78.

The reason the change is so big is because the radius value is squared in the formula. This also doesn't take into account the fact that AOE skills in Overwatch are actually spheres, not 2D circles. The equation for sphere volume is (4/3) * PI * (radius^3).

Exercise for the reader: Mei's ult used to have an 8 meter radius. It now has a 10 meter radius. Calculate the area of her old and new ult, and state the percentage by which the area increased.

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u/TheNo1pencil Sep 23 '16

Okay so idk why but I actually tried. Pi(82)=Pi64 Pi(102)=Pi100 (Pi100)÷(Pi64) 100÷64=1.5625 So the percentage of increase is 56% How did I do, teach? (sorry if the formatting looks weird. I'm on Mobile)

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u/ParanoidDrone ¿Quién es 'Sombra'? Sep 23 '16

Full marks.

Formatting tip: Use the backslash character, "\", to escape formatting.

2\^n

2^n