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Boom! -- Particle Explosion Simulation

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Submitted on: 10/24/1999
By: Jason Merlo  
Level: Not Given
User Rating: By 4 Users
Compatibility:VB 5.0, VB 6.0

Users have accessed this code 8719 times.
 
 
     Boom! is a particle explosion simulation. It simulates explosions composed of many individual elastic pieces. Each piece also has a shadow, which has a very nice effect when the explosion occurs over a detailed background graphic. <br><br> Boom! is a fun little side project that I devised while looking for a quick way to put explosions into another game I'm writing. It turned out well enough to warrant a GUI so that the user can tweak the particle properties. There is also a 'multiball' feature, so that you can start up several explosions at once! <br><br> In this simulation, each particle is an instance of the same class. I used this approach to show how easy it is to create an array of similar objects, each with dynamic property values. It makes for very concise and understandable code!
 
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Other User Comments
10/25/1999 11:34:00 AM:Jason Merlo
Just a quick note:  I updated this on 
10/25/99.  I fixed a bonehead bug that 
was causing the screen to get updated 
200 times each scan instead of 1.  
You'll notice that it's a *lot* faster 
now.  I also minimized the number of 
class property accesses and added a 
speed control.  Enjoy!
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10/26/1999 10:37:00 AM:Jason Merlo
Another update 10/26/99.  I fixed a bug 
in the ballistics model that was making 
the ball elasticity not work quite 
right.  Now the balls will never bounce 
forever.  I also cleaned up the display 
routine:  Now the EraseBall function is 
no longer used, and all of the shadows 
are drawn first so that shadows don't 
overlap balls.  The 3-D effect is much 
better as a result.  This will be the 
last update, promise!
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11/16/1999 6:02:00 PM:Freaky
Thanks your very interesting 
program.
It surely is interesting~~~ 
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12/8/1999 7:04:00 PM:[]D [] []V[] []D
This program is tight
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5/7/2000 12:56:16 AM:Dustin Davis
He's right, this is sweet. Good job man
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7/31/2000 10:39:14 PM:ASV
Thanks for a lovely progie, that's 
truly addictive. However, looking 
through the code I have found several 
minor errors, such as passing values to 
nowhere etc. Is there any chance you 
could correct these? Many thanks.
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8/27/2000 10:22:38 PM:Dark Angel
ASV, you seem to have plenty of time on 
your hands, want to analyse a couple of 
programes of mine for me ?
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10/23/2000 2:32:38 AM:Nathan Chere
2Mb for a little explosion 
effect?
Shocking optimization (or lack 
of), but otherwise nice effect.
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4/2/2001 1:49:27 PM:Jason Merlo
NOTE: Fracas version 1.1, which uses 
this code, is available at 
www.smozzie.com for free download.
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6/15/2001 8:36:50 AM:Sinister
Ha ha ha! too cool
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