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18h
awarded  Nice Answer
19h
comment Why is Euler integration sometimes preferred over RK4 even if RK4 is more accurate?
twitter.com/erin_catto/status/458639247889534976 I couldn't find any direct comment on RK4 but if my experience serves, changing the integrator is a huge load of work and debugging. I imagine that since he's not getting payed for it and the benefits are negligible he won't be doing it. I don't see why he would when such highly successful games like Angry Birds were created using this Engine without any problems, why invest more time and money into doing things differently when they work well the way they are now?
19h
comment Why is Euler integration sometimes preferred over RK4 even if RK4 is more accurate?
@Narek This is not a stackoverflow related question, it doesn't fit the site because it is not useful, it is trivia.
19h
comment My pool balls often jump around when there are two or more balls colliding/touching
Why implement a "ball only" physics engine when there are perfectly good ones that support all shapes? I am not saying it's wrong, I'm just asking what brought you to do this? I did this myself awhile back and never regretted it. It is really interesting to see how many tiny collisions could exist each frame in a densely populated area.
23h
comment Why is Euler integration sometimes preferred over RK4 even if RK4 is more accurate?
This is not a question anyone other than Erin Catto or someone who could spy on his mind could answer and it doesn't seem to be helpful in solving a real problem so why ask it?
23h
comment How to measure skill in a pinball game?
@ADB If the score points are balanced with difficulty, then you already know the skill level required to accomplish these objectives, meaning the player skill === (recent score point). So you are not looking to measure skill because you measured the skill required to accomplish the objectives and hence the work is done. :) You might be looking to remove the interfering factor of luck (hence average of recent plays vs. most recent play or best play).
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answered How to measure skill in a pinball game?
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revised How to convert non-discreate data for discreate pathfinding?
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comment How to convert non-discreate data for discreate pathfinding?
You can predict which stationary obstacles you'll have to walk around and then walk towards their corner instead of walking around their edges like in the image.
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revised How should I collect user behavior data in an MMO?
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reviewed Approve suggested edit on How should I collect user behavior data in an MMO?
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comment How should I collect user behavior data in an MMO?
The advantage is that we can see exactly what buffs were applied to the user and what monsters she fought when there was a spike in xp/s. Sometimes we need to delete some data but currently there isn't much activity so it doesn't affect us much.
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comment How should I collect user behavior data in an MMO?
@RobertHarvey (If you decide to use this) Just keep the command classes slim, they are methods after all. They are supposed to be very skinny.
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answered How should I collect user behavior data in an MMO?
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revised How to convert non-discreate data for discreate pathfinding?
added 408 characters in body
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comment How to convert non-discreate data for discreate pathfinding?
I updated the answer and I welcome questions for clarification.
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revised How to convert non-discreate data for discreate pathfinding?
added 888 characters in body
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comment How to convert non-discreate data for discreate pathfinding?
Does the black spots represent none passable areas? i.e you can walk anywhere on the white area, correct? Also is this a pretty realistic and common scenario and are the black spot in motion?
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answered How to make a scrollbar?
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comment How to make a scrollbar?
It does matter cause in some languages, the solution is one line of code, maybe two (for instance if it was a javascript web game), even in ActionScript it's very simple. In Pascal, I imagine it might be rather difficult.