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Circle line-segment collision detection algorithm?
...lized. Thus "if (t-dt >=0.0)" first intersection exists "if (t+dt <= 1.0)" second intersection exists. This worked with testing.
– punchcard
May 12 '15 at 14:15
2
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Once upon a time, when > was faster than < … Wait, what?
...range of [0, 0.5]. Next frame, you render with GL_GREATER with a range of [1.0, 0.5]. You go back and forth, literally "flipping the sign of Z and the depth test" every frame.
This loses one bit of depth precision, but you didn't have to clear the depth buffer, which once upon a time was a rather s...
How to create the perfect OOP application [closed]
...
@Jordão: In decimal, adding 0.10 ten times does give 1.00. But adding 1.0/333.0 three hundred and thirty three times does not necessarily give one in either decimal or double. In decimal, fractions that have powers of ten in the denominator are exactly represented; in doubles, ...
Should composer.lock be committed to version control?
...es then you have a lack of confidence in your versioning scheme. Versions (1.0, 1.1, 1.2, etc) should be immutable and you should avoid "dev-" and "X.*" wildcards outside of initial feature development.
Committing the lock file is a regression for your dependency management system as the dependency...
In C#, why is String a reference type that behaves like a value type?
... decided to cut out the middleman (struct handling was inefficient in .NET 1.0, and it was natural to follow Java, in which strings were already defined as a reference, rather than primitive, type. Plus, if string were a value type then converting it to object would require it to be boxed, a needles...
What is the difference between “px”, “dip”, “dp” and “sp”?
... 240 360
Density (factor of baseline 160) 1.0 1.5
Density-independent pixels 240 240
(“dip” or “dp” or “dps”)
Scale-independent pixels
(“sip” or “sp”) Depend...
Performance surprise with “as” and nullable types
...out a dozen instructions. This needed to be really efficient back in .NET 1.0 when boxing was common.
Casting to int? takes a lot more work. The value representation of the boxed integer is not compatible with the memory layout of Nullable<int>. A conversion is required and the code is tri...
Turn a number into star rating display using jQuery and CSS
... <meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Star Rating</title>
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.9.0/css/all.min.css" rel...
Are list-comprehensions and functional functions faster than “for loops”?
...l version
dt_p = time.time() - t0_p
f_vs_p = dt_p / dt_f
if f_vs_p >= 1.0:
print('Time benefit of functional progamming:', f_vs_p,
'times as fast for', n_points, 'points')
else:
print('Time penalty of functional programming:', 1 / f_vs_p,
'times as slow for', n_poi...
What kind of Garbage Collection does Go use?
...upports finalizers on objects
there is no support for weak references
Go 1.0 garbage collector:
same as Go 1.1, but instead of being mostly precise the garbage collector is conservative. The conservative GC is able to ignore objects such as []byte.
Replacing the GC with a different one is cont...