bounce with push?

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bounce with push? #218757 07/30/08 11:54 07/30/08 11:54
M mercuryus OP Unregistered
mercuryus OP Unregistered M	Please help - i get stuck... Using bounce is great to rebound from objects. (it't the resulting vector for the moved object) But what is the pushing vector of the hit object when bouncing against movable objects? (maybe yet calculated with the friction?) (it's not the move vector nor the inverted bounce vector) Can someone help me calculating the green vector please...

Re: bounce with push? [Re: ] #218863 07/31/08 05:36 07/31/08 05:36
M mercuryus OP Unregistered
mercuryus OP Unregistered M	solved

Re: bounce with push? [Re: ] #218998 07/31/08 16:27 07/31/08 16:27
Joined: Mar 2003 Posts: 3,010 analysis paralysis NITRO777 Expert
NITRO777 Expert Joined: Mar 2003 Posts: 3,010 analysis paralysis	Quote: solved What is it? You should probably post the answer so that others who are searching can find out. I also am curious.

Re: bounce with push? [Re: NITRO777] #219127 08/01/08 07:10 08/01/08 07:10
Joined: Mar 2007 Posts: 677 0x00000USA M MrCode User
MrCode User M Joined: Mar 2007 Posts: 677 0x00000USA	I think (if you wanted to be completely accurate)that after the ball bounces, you would assign the box's vector the value of the ball's initial vector (from before the bounce), only with a lesser factor (because in real physics, you would be transferring some of the ball's energy to the box, but not all of it). Then you would slow the box down according to whatever friction value you give it. If you want some good realistic bouncing behavior like this without having to deal with a lot of the math, I would seriously consider using the physics engine. Last edited by MrCode; 08/01/08 07:19. Code: void main() { cout << "I am MrCode,"; cout << "hear me roar!"; system("PAUSE"); }

Re: bounce with push? [Re: NITRO777] #219131
08/01/08 07:31 08/01/08 07:31

mercuryus OP
Unregistered

Code:

if(event_type==EVENT_IMPACT){		
	move_friction=.5;

	// pushed force
	vec_set(temp, you._forcex * my._bouncyness);
	vec_normalize(temp, 2 * move_friction);
	
	// added by normal force
	temp.x=(temp.x + normal.x)/2;
	temp.y=(temp.y + normal.y)/2;
	
	my._forcex=temp.x;
	my._forcey=temp.y;
	
	you._forcex=bounce.x;
	you._forcey=bounce.y;
}

Re: bounce with push? [Re: ] #219225 08/01/08 13:47 08/01/08 13:47
Joined: Mar 2003 Posts: 3,010 analysis paralysis NITRO777 Expert
NITRO777 Expert Joined: Mar 2003 Posts: 3,010 analysis paralysis	Thats interesting, thanks!

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