[BEHAVIOR] Chipmunk Physics

mh11

I've seen the question come up often and there are two solutions.

One is to pick one object and store it's values in a variables and then in a separate event pick the other one and use the values to do something. One quick thing you can save to a variable is the object's iid then you can use expressions like Sprite(1).x+sprite(2).x to add the x values of two separate instances for example.

Another more useful thing you can do is to make a family containing only that one object type, then in events you can pick two separate instances independently. If you use C2's physics you have to use the family route.

viewtopic.php?f=148&t=91829&p=718895&hilit=rope#p718895

With the chipmunk behavior it makes things simpler, you specify the uid of the other object to attach the joint to and avoids having to use a family or even picking at all if you want to design joints in the editor.

https://dl.dropboxusercontent.com/u/542 ... test2.capx

I've heard this has better results than box2d... might someone be able to tell me how to apply force at angle?

I can see there's apply at offset, etc... but I'm trying to covert my current code over. Isn't it as simple as apply force at 90 degrees? I keep reading that this is used for joints etc... so am I using it for the wrong thing?

AnD4D

I'm using chipmunk for racing game, and I have made the turning by applying force at offset:

CasuRally

Up arrow controls the force

Left and Right controls the offset

neverk

Surely that means you have to have a bunch of variables controlling such things. The simplicity of the normal physics engine is you just set the physics force strength and the angle.

My code currently simulates something of a black hole. The closer you are to it, the greater the force. Can't see how I'd achieve the same with this one.

AnD4D

That could be achieved by setting force (polar) to

force : max amount - clamp(distance(object.x,object.y,blackhole.x,blackhole.y),0,max amount)

angle : angle(object.x,object.y,blackhole.x,blackhole.y)

I use chipmunk for the joint capabilities, here is something I was working on last year:

Please someone help me, I have a falling box with physics behavior i want to change his direction when i swipe, the box will move to right or to left and continue to fall as the image below

Im using chipmunk plugin

Hello MarkeGamer,

I've never used the touch but, basicaly I think just check the direction of the touch (with somethin like touch start and touch end, I don't know) and apply an impulse with Chipmunk physics at that direction or an angle (switch to polar when setting the impulse).

MarkeGamer you could do it like

is in touch Box Set angle towards (touch.x)

(Touch.y)

Hello MarkeGamer,

I've never used the touch but, basicaly I think just check the direction of the touch (with somethin like touch start and touch end, I don't know) and apply an impulse with Chipmunk physics at that direction or an angle (switch to polar when setting the impulse).

Thanks for reply can you please give me a sample example if you want im newbies in construct 2

MarkeGamer you could do it like

is in touch Box Set angle towards (touch.x)

(Touch.y)

please can you tell me how with an example coz im a newbie in construct 2

MarkeGamer you will find demo here and many more as you are newbie in construct 2

https://www.dropbox.com/s/djjowh9avzqpb ... .capx?dl=0

MarkeGamer you will find demo here and many more as you are newbie in construct 2

https://www.dropbox.com/s/djjowh9avzqpb ... .capx?dl=0

Firstable thanks for your reply in fact it's almost what i need except one thing i want the green box, falling down to the bottom even when i change his direction as you did in your code

MarkeGamer See Falling demo again and let me know is that what you want?

https://www.dropbox.com/s/8d2a8zt685mf8 ... .capx?dl=0

many more as you are newbie in construct 2

https://www.dropbox.com/sh/eioscti86bpr ... 7YPza?dl=0

MarkeGamer See Falling demo again and let me know is that what you want?

https://www.dropbox.com/s/8d2a8zt685mf8 ... .capx?dl=0

many more as you are newbie in construct 2

https://www.dropbox.com/sh/eioscti86bpr ... 7YPza?dl=0

Thanks Lordshiva1948 but i guess you put the wrong file coz it's talking about uploading files from computer i see no falling box there