on resilience

Russell Bennett:
i’m worried about steve man
all this resilience is getting to his head
he keeps trying to get people to hurt him in real life
talking about how it’s “going to hurt 40% less”
i think you need to talk to him

Vincent Woo
hahahaha
shit man
have you talked to him about how your health pool is still more important

Russell Bennett
yeah man
still running around with 96k hp, gemming everything res
saying “no it’s better i don’t need socket bonuses i read it on ej”

BC2 Hacking 1

Here’s a quick youtube of some of the ballistic aimbot capabilities of a hack that I am developing for Bad Company 2.

Video has been obsoleted, see the new post for the new one.

The physics and realtime estimation involved is definitely the most interesting part of both the hack and the game itself. DICE did a pretty good job with the Frostbite engine. I’ll admit I got some help trying to simplify the equations of aiming a projectile affected by gravity in 3D at a moving target. In loose terms, my approach is to simplify the “easy” case of aiming a projectile at a stationary target by collapsing the plane parallel to the ground into one dimension, since gravity only acts in the “Y” dimension. This is trivial, and comes easily with the intuition that the yaw (think side-to-side aiming) does not depend on the speed of the bullet or gravity. This leaves us with an equation of the form

at^4 + bt^2 + c = 0

which is easily solved. We then use this t to advance the target, and repeat the previous steps until the discrepancy between steps becomes tolerably small.