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 Zombie Massacre  (Read 5929 times) 0 Members and 1 Guest are viewing this topic.
trollwarrior1
 « Reply #30 - Posted 2013-11-12 21:33:31 »

Didn't think of that

I'm going to sleep btw. Good night.
trollwarrior1
 « Reply #31 - Posted 2013-11-22 12:39:45 »

Hi jGamers.

https://www.mediafire.com/?37p9pu7fumik7dn
matheus23

JGO Kernel

Medals: 121
Projects: 3

You think about my Avatar right now!

 « Reply #32 - Posted 2013-11-22 14:49:47 »

One very, very important thing I'd like to add:

Imagine you've got two circles, a and b. If you want the two circles not to collide, you need to check whether the distance between the two circles is greater than the combined radii:

So thats exactly what you do, let's fill in the distance formular:

dx = b.x - a.x
dy = b.y - a.y
a.radius + b.radius < sqrt(dx * dx + dy * dy)

So what's the problem with this? The problem is that
 `sqrt()`
is a (relatively) very slow operation. To get rid of it, simply take the square of the terms:

a.radius + b.radius < sqrt(dx * dx + dy * dy)
<=>
(a.radius + b.radius)² < dx * dx + dy * dy

And in the end that's much faster. It might be premature optimization, but it takes almost no time to understand and change.

I Hope I'm helpful

See my:
My development Blog:     | Or look at my RPG | Or simply my coding
http://matheusdev.tumblr.comRuins of Revenge  |      On Github
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trollwarrior1
 « Reply #33 - Posted 2013-11-28 19:33:39 »

Check out the new version. It is pretty playable
drdracula

Junior Devvie

Medals: 2
Projects: 1
Exp: 2 years

Mate Box

 « Reply #34 - Posted 2013-11-28 20:23:19 »

The game makes really fun. Do you want to add some other kinds of zombies?

Programming, Design, Tutorials : http://www.matebox.bplaced.net
trollwarrior1
 « Reply #35 - Posted 2013-11-28 20:37:55 »

The game makes really fun. Do you want to add some other kinds of zombies?

Not really. This was supposed to be kinda game like this. Just shoot them and that's it
ags1

JGO Wizard

Medals: 92
Projects: 3
Exp: 5 years

Make code not war!

 « Reply #36 - Posted 2013-11-28 22:24:01 »

So what's the problem with this? The problem is that
 `sqrt()`
is a (relatively) very slow operation. To get rid of it, simply take the square of the terms...

And in the end that's much faster. It might be premature optimization, but it takes almost no time to understand and change.

I Hope I'm helpful

Yes you are helpful. I will use this in my shaders, which use sqrt() quite a lot.

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