Comments on: Pausing a Box2D simulation

By: Emanuele Feronato

Emanuele Feronato — Thu, 07 Jan 2010 15:25:47 +0000

nice! if you want to share it with blog readers, write me at info[at]emanueleferonato.com

By: Way of an Idea Box2D prototype – Step 2 : Emanuele Feronato - italian geek and PROgrammer

Thu, 07 Jan 2010 15:17:14 +0000

[...] time to apply the concepts seen at Pausing a Box2D simulation with Way of an Idea Box2D prototype to create a paused Box2D simulation that will start only when [...]

By: rishabh

rishabh — Thu, 07 Jan 2010 15:14:10 +0000

i finished the matrix thing
in 2 ways
1. check the location of the sprite which represents it and then slows down time when it is in range
2.the sensor way i explained before

By: rishabh

rishabh — Thu, 07 Jan 2010 08:00:21 +0000

Emanuele Feronato

i have created something like that
but I used a variable called paused and if it is false,I call world.step(1/30,10) note:i usually put all stuff like framerate and ratio into a class called physivals and for the timestep, i sometimes use a seprate class called timeMaster which has 3 functions
1. getTimeStep() < for the timestep
2.slowDown() < slows down the timestep
3.backToNormal() < returns timestep to normal

for the matrix effect
how about a bullet which has 2 shapes the real bullets shape and a sensor around 50×50 px big
when the sensor collides with an object you
call slowDown() and when it is removed you call backTNomal()

mind if i send you a demo of that soon?

By: ShahSoft

ShahSoft — Thu, 07 Jan 2010 07:55:28 +0000

In my game “Word Cannon” I simply don’t call World Step while paused. I never thought of Sleeping bodies but there seems 2 b no problem if I pause for a While.

Link: http://www.king.com/games/sponsored-games/word-cannon/

By: Emanuele Feronato

Emanuele Feronato — Thu, 07 Jan 2010 00:26:28 +0000

nice idea, a bullet time… (idea for next tutorial…)

By: Danhezee

Danhezee — Wed, 06 Jan 2010 23:50:49 +0000

That is the key to creating a cool matrix effect in box2d