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siven
I EAT ROCKS
Registered
03/11/2008
Points
604
 
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16th January, 2009 at 01:13:04 -
is it possible (and if so how) to make random particle effects for things such as fire, explosions, energy trails etc?
[Game design makes my brain feel like its gonna explode.]
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traugott.simon
Registered
23/08/2008
Points
91
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17th January, 2009 at 19:00:36 -
Of course.
Theres an extension for this but if you want to do it on your own just create your particle objects and set their movement directions to random for example.
Mayby you could specify your question a littlebit
n/a
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OMC
What a goofball
Registered
21/05/2007
Points
3516
      
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17th January, 2009 at 23:12:57 -
Hmm, a nice way to do random particles: (simplified form)
Always >> Create object outside of play area.
Value (or flag or whatever) = 0 >> Set value to 1 and place particle where the origin is. (Nice for when you need the particle to be behind whatever it's spewing out of; if it's at the origin from the start, you can't set it behind the object fast enough) AND Set Value A to (random(5)-3) AND Value B to (random(5)-3).
Always >> Set particle XPos to current Position + Value A. AND set particle YPos to current position - Value B.
If you want to have gravity, add this to the always condition: Add 1 to value B
Voila!  Simple particle effect. You can adjust the random values if you need it to be skinnier or wider or taller or shorter.  (If something is backwards and the particles fly up, it's because sometimes I get confused as to whether the Y starts at the top or bottom. Believe it or not, sometimes it flips around for me in TGF. O_O)
Also, if you don't want the origin to be one spot, you can set the X and Y positions to the origin + random(whatever number)-(half of that number)
I think that makes sense. O_o 
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siven
I EAT ROCKS
Registered
03/11/2008
Points
604
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17th January, 2009 at 23:24:57 -
its a bit confusing, but i believe i can figure it out, also, for the more specific thing, i meant what i said, explosions and fire. so multicolored things, because im terrible at fire anims same with explosion, plus it would be cool to do random particles, would match better, ill give your example a try clayton.
[Game design makes my brain feel like its gonna explode.]
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OMC
What a goofball
Registered
21/05/2007
Points
3516
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17th January, 2009 at 23:30:32 -
You may be able to get an acceptable flame out of it if you slow down the speed at which it moves (make the random number generator generate a lower number) and have the animation start out as a small white flameblob, slowly grow to a bigger yellow, then a smaller orange, an even smaller red, and then fizzle into black smoke if you want. (Or make smoke a separate particle effect.) You'd also need to make it go up instead of down. 
All examples are confusing when you first see them. Once you get it to work you'll usually get it to snap together in your head. 
 Edited by OMC
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dndfreak
Registered
11/01/2009
Points
650
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18th January, 2009 at 04:43:38 -
why don't you try the flame object?
Vegeta? What does your mother say about my power level?
ITS OVER 9000!!!
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siven
I EAT ROCKS
Registered
03/11/2008
Points
604
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19th January, 2009 at 02:35:01 -
thanks klayton, ill give it a shot, i just got finished changing the main character sprites of the game (big pain lol and time waister lol)
oh and dndfreak, the flame object slows the game down way to much to use in a scrolling game, trust me, it was my first thought on my last game, which didnt work out.
[Game design makes my brain feel like its gonna explode.]
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OMC
What a goofball
Registered
21/05/2007
Points
3516
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19th January, 2009 at 02:36:55 -
Tell us how it goes! 
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siven
I EAT ROCKS
Registered
03/11/2008
Points
604
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19th January, 2009 at 02:41:06 -
can do, gimme just a min to try it out
[Game design makes my brain feel like its gonna explode.]
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siven
I EAT ROCKS
Registered
03/11/2008
Points
604
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19th January, 2009 at 02:54:47 -
hmm, it just makes little dots, i may have done something wrong, i dont mean to be a bother, but could you do a little example for me? please?
[Game design makes my brain feel like its gonna explode.]
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OMC
What a goofball
Registered
21/05/2007
Points
3516
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5th March, 2009 at 22:34:45 -
Did you ever get this figured out siven? 
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