particle explosion effect?
justinodunn
Member, PRO Posts: 226
how to make a particle explosion effect (when actor is touched, trigger particles)? like when you pop a balloon?
Comments
I make my debris actor interpolate alpha to 0 in 1 second, move at random 1,359 degrees direction, destroy after 1.25 seconds, and I make the size of actor about 12x12.
My ship shoots a bullet (actor) at an enemy (actor). I set my bullet actor (When collide or overlap with "enemy", spawn actor "debris"). I spawn about 8 debris actors per collide.
So...when the bullet hits an enemy, it will spawn 8 debris actors in random directions for 1 second. Nice effect
when touch is pressed
timer->for 1 second
fire your particles
you need to put the particles in a timer so they only fire off once.
hope that helps.
This is me using particles in an upcoming game:
The system I use is to have a 'hit' actor. This actor is non moveable, and there's just one in a scene. So, no spawning and no moving.
When an alien is hit, a couple of things happen:
The 'alienhit' variable becomes true.
When alienhit is true, the enemy that was shot makes its self position x and y = the global variables AlienX and Alien Y.
Then three things happen to make the explosion itself:
A) On the 'hit' actor is a rule that says 'When alienhit=true' change self x and self y to AlienX and Alien Y.
C) make alienhit = 0
I use particles because they are a nice, cool looking and optimised way of making explosions.
@Thunder_Child You could even use one of those 'debris' images within the particle system itself - just one - and alter its rotation randomly, for example. That might look good and be less of a burden on your games as you're not using 'spawn'.
QS =D
I'm worried this seems like shameless self promotion - but it's relevant to the topic, honest!
My game Air Supply - Infinite I feel shows a little of what you can do with particles:
The explosions, and most importantly the changing backgrounds, are all done with one actor using particles depending on different variable states.
The images for each particle are about 512x512 - so pretty large. I'm throwing about 6 out in very brief periods, constantly.
I did consider doing this with just spawning or looping images but it was too much of a drain on the performance.
It worked for that particular game - I guess the take-away is that if the way you do it works fine, then carry on!
If you're having performance issues, then using particles is one possible answer!
QS =D
I was only posting to show an example of particle explosions.
I LOVE them
QS =D
EDIT: I'd just like to add, that spending a little time with a blank project and the particle behaviour may surprise you. It'll make you smile too!
Experiment with it - I think you can do some lovely things with it, while also keeping an eye on how your game performs
2 things..
1. Did you make the game mechanics for Air Supply or is that an adapted "planet hop" template? Love the gameplay video.
2. Love your screename. I inagine little sheep jumping in and out if existence at a plank scale between parallel d-brane universes. Pretty deep man...pretty deep....
But I already told you that next week!
QS =D