explosion help

[Schaef]

Im trying to make something explode for my school project but i dont know how to get a whole bunch of particles to go out in different directions at the sametime after I have drawn them. I had the same problem with a cloud program i was doing. I drew the cloud with a whole bunch of dots and I want all of the dots to move seperately but I didnt know how and i ended up moving the cloud with Pic.Draw . If ne one could give me a code and explain how they did it it would be very helpful

[Tony]

there's a number of particle engines available... you just make a radial push force in the center of explosion

[Cervantes]

you could look at Kuntzy's blood particle program...

http://www.compsci.ca/v2/viewtopic.php?t=3150

Cheers

[Schaef]

i need a code of a program. just a small explosion with little particles. I have no idea how to create a particle engine.

[Tony]

you dont have to create, just borrow an existing one and give credit in your program

[Schaef]

lol. I would like to know what I am doing so i can use it in different situations. all of the particle programs seem to have "type" and "record" in the beginning of the program. What do these mean?

[Cervantes]

ooh ooh! if you can't do it in Turing then you can always draw a series of pictures in Paint of your thing exploding and then import those into Turing

[Schaef]

i could.. but that would suck . lol. could someone just plz post a code and tell me how it works?

[Cervantes]

I would but I don't know how to do it either

[Schaef]

lol. does ne one know how i could do it. I can make all of the little dots put then I cannot change the x and y values for each of them because if i do something like:

var x,y:int

for dots:1..1000
randint (x,100,200)
randint (y,200,300)
drawdot(x,y,16)
end for

could i move all of the dots in different directions instead of just taking a picture of the screen and moving the whole thing?

[Schaef]

can someone plz post an example for me?

[AsianSensation]

you should have searched.

here is Catalyst's code:

code:

setscreen ("offscreenonly,graphics:640;640") randomize const numP := 800 const accel := 0.8 const maxLife := 510 var clr : int for i : 1 .. 255     clr := RGB.AddColor (1, i / 256, 0) end for drawfilloval (maxx div 2, maxy div 2 + 100, 10, 10, black) drawfillbox (maxx div 2-2,maxy div 2+110,maxx div 2+2,maxy div 2+115,black) drawline (maxx div 2,maxy div 2+115,maxx div 2,maxy div 2+125,15) drawfilloval (maxx div 2,maxy div 2+125,2,2,42) delay (1500) type part :     record         x : real         y : real         xV : real         yV : real         r : int         life : int     end record var main : array 1 .. numP of part var a : array 1 .. numP of int for i : 1 .. numP     main (i).x := maxx div 2     main (i).y := maxy div 2 + 100     main (i).xV := Rand.Int (-40, 40) * Rand.Real     main (i).yV := Rand.Int (-40, 41) * Rand.Real     main (i).r := Rand.Int (1, 8)     main (i).life := maxLife + Rand.Int (-100, 0)     a (i) := Rand.Int (28, 31) end for loop     for i : 1 .. numP         main (i).xV -= main (i).xV / 16         main (i).yV -= accel + main (i).yV / 16         main (i).x += main (i).xV         main (i).y += main (i).yV         main (i).life -= 10         if main (i).life >= 255 then             drawfilloval (round (main (i).x), round (main (i).y), main (i).r, main (i).r, round (((main (i).life / maxLife) * 255) + 255))         else             drawfilloval (round (main (i).x), round (main (i).y), main (i).r, main (i).r, a (i))         end if     end for     View.Update     cls end loop

[Schaef]

ya i did search. I found that one. I am just not sure how "type" and "record" commands work..

[AsianSensation]

http://www.compsci.ca/v2/viewtopic.php?t=2325

dodge wrote it

[Schaef]

ok thx that is a really helpful tutorial