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Results tagged with physics
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user 35669
Relating to the motion of objects through space and time. Including concepts such as acceleration (thrust and gravity), mass, collision response, friction and more.
3
votes
Circle Collision Resolution and Angular Momentum
You need a tensor for a generic solution. but the "specialized" solution here is that you have a a spin only if you have friction in your contact. otherwise of course the contact forces will purely be …
- 2,353
7
votes
Accepted
Box2D recommended step, velocity and position iterations
Secondly, you don't really need to care, you can simulate at 40 if you want, just be sure to linearly interpolate all of your matrices, the frame presentation time is the t, and your physics simulation …
- 2,353
-1
votes
Adding gravity to arrival steering behavior
If a snail divides his speed by two everytime he makes half the distance to its target, it will never reach the target. this is a contra-exponential assymptot. but we are in physics, not math, so some …
- 2,353
0
votes
Calculate intersect point / aim point
This is how I would pose the problem:
position equation:
$$
\begin{align}
P_{dest} &= P_{01} d_1 t_1 = P_{02} d_2 t_2 \\
t_1 &= P_{dest} / (P_{01} d_1) \\
P_{02} d_2 t_2 &= P_{01} d_1 P_{dest} / (P_{ …
- 2,353
0
votes
2D bouncing formula doesn't work properly
normalize your normal vector n before using in in the reflect formula.
Vector2 n = hit.normal;
n.Normalize();
- 2,353
1
vote
Sphere to plane collision never rearching resting contact
Like both answers said, there are 2 "secrets", one is you need to stop applying gravity when bounces are determined to be over (which is a bit of an extension over Leftium answers, he just said "resti …
- 2,353