particle candy question - trails behind rockets
Blitz3D Forums/Blitz3D Programming/particle candy question - trails behind rockets
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| in my game i'm launching multiple rockets quickly in sequence, and i want smoke trails coming from them. ROCKETSMOKE=createemitter_smoke() Emitter_SetScale ROCKETSMOKE,2.1 sets up one emitter is there a way to use this one emitter to make smoke from multiple rockets? i am now creating an emitter for each bullet, 200 of them at initialization(yes it slows things down to do this). if i don't do this, i get only one trail, from the last rocket shot. is there any way to simply reference a existing emitter with another name instead of doing a whole new create, so that it doesn't balloon my software? |
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| Ryan, Checkout the meteor demo code in the code samples folder. That does a similar job, maybe you can findout how the author applied multiple trails in that code. IPete2. |
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| 1. i wouldn't have 200 bullets load up from the beginning, the way i did it in my game was to have each bullet created when the player hit control and deleted when the bullet reached a certain distance.... 2. To get the particles you wanted, create another bb file... From there code a function that'll declare the x y and z axis of that particle and will also load the sprite... ie: CreateParticle(x#,y#,z#,sprite$) p.particle = new particle p\x = x# p\y = y# p\z = z# p\image = sprite$ p\sprite = loadsprite(p\image) scalesprite p\sprite,0.2,0.2 positionentity p\sprite,0,0,5 end function after you have your function that creates the particle make a function that will update the movement constantly, also have the update function delete the particle when it reaches a certain point constantly Function updateparticle() For p.particle = Each particle p\zmove# = p\zmove# - 0.1 PositionEntity p\sp,p\xpos,p\ypos,p\zpos MoveEntity p\sp,0,0,p\zmove# If p\zmove# <= -0.75 FreeEntity p\sp Delete p EndIf Next End Function then run these in your main bb code... here is a very early screen shot of my game using these exact particles (http://www.razor.together4eva.com/S3D/UpdateL.jpg) of course using the CreateParticle function i added some small rnd(-0.2,0.2)+entityx(bullet) on each x y and z axis to get the more fire trail effect... (else it'll be straight and not fire trail like) if you still don't know what to do i'll be releasing a very simple lib out soon when i finish my game... or you can check out candy factory (main site) Hope this helps! and good luck with your project! |
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