bounce for c_trace

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bounce for c_trace #267132 05/22/09 04:41 05/22/09 04:41
Joined: Oct 2006 Posts: 175 G Gumby22don OP Member
Gumby22don OP Member G Joined: Oct 2006 Posts: 175	Hi, Could someone help me setting up a manual bounce calculation - only just realised the bounce isn't set by c_trace, only by c_move. normal is still set, and the following is my guess at how bounce is calculated, but my head hurts so I can't think :P note tempGun is the speed of the fired weapon. so "speed" in the manual's decription. Code: //bounce = speed + 2dot(normal,-speed)normal, while speed = distance vector to target, normal = target surface normal. vec_set(tempV1, tempGun); vec_scale(tempV1, -1); tempV2 = vec_dot(normal, tempV1); vec_set(tempBounce, normal); vec_scale(tempBounce, tempV2 * 2); //new Bounce Is this even remotely close to correct? Thanks, Don have a great day Last edited by Gumby22don; 05/22/09 04:42.

Re: bounce for c_trace [Re: Gumby22don] #267343 05/23/09 11:36 05/23/09 11:36
Joined: Oct 2006 Posts: 175 G Gumby22don OP Member
Gumby22don OP Member G Joined: Oct 2006 Posts: 175	Ok - figured it out in about 5 mins with coffee... I didn't add the original speed vector to it, - real code now looks like this: Code: vec_set(tempV1, tempGun); vec_scale(tempV1, -1); tempV2 = vec_dot(normal, tempV1); vec_set(tempBounce, normal); vec_scale(tempBounce, tempV2 * 2); vec_scale(tempV1, -1); //back to speed vec_add(tempBounce, tempV1); //add speed to 2dotnormal. //new Bounce Hope this helps someone.