Experiment: Physical "Particles"

[BlackBulletIV]

I've put together a new experiment that involves a whole bunch of circles with a high restitution (meaning they maintain speed for quite a while before slowing down). You can place individual particles, particle spawners, adjust speed (done by multiplying the delta time), and send a shockwave from the mouse's position to get things moving again. This includes the motion blur effect like last time, though implemented in a module of sorts.

Controls (copied from main.lua):
LMB to spawn a new particle at the mouse position
RMB to add an automatic particle spawner at the mouse position
Scroll to adjust the speed at which the world updates
Spacebar to create an outward explosion of force from the mouse position
M to toggle motion blur

[silver_hawk]

This is nice, I get around 170 FPS with 500 particles

[Lafolie]

Once again you show mastery over box2d. This reminds me of that awesome PS2 game Fantavision.

[BlackBulletIV]

Thanks guys.

I wouldn't call it mastery though; I haven't even used joints yet!

[Robin]

Nice. When I get to 1000 particles, it still runs 60 FPS for me (just like it does at 500), and when I get to 1400 it runs at 50 FPS. At 1700, I get 40 FPS, I think I'll stop there.

[Nixola]

At 370 I had around 20 FPS (without motion blur), I pressed space and it froze...

[BlackBulletIV]

Yeah, it's not very efficient (especially the force push thing; I'm pretty sure that could be done better).