Chiroyce wrote:

-ElectronicArts- wrote:

intro creator time

yeah - almost every intro creator on scratch is obsessed with trig

But they off brand it to “math”, either because that's the “cooler” name or they are all 9-year-olds who don't know trig

Chiroyce wrote:

-ElectronicArts- wrote:

intro creator time

yeah - almost every intro creator on scratch is obsessed with trig

Or rather sinusoidal motion.

bump

You can easily make a 3D sphere function on Scratch using the trigonometry functions. Given a longitude λ and latitude φ, and longitude offsets of λ₀ and φ₁ (these will be used to rotate the sphere), you can use these transformation function to create an orthographic map projection, i.e. in layman's terms, a sphere as viewed without any perspective.


R is the radius of the sphere, so changing that will make the sphere bigger or smaller. Here's a simple demonstration I made: https://scratch.mit.edu/projects/754981645/ It's only a wireframe, but you can drag it around, and you can easily draw points, lines, and shapes on the sphere. If you could get your hands on some coastline or city data, you could make a nice globe on Scratch. All of the code was cut from a project I'm making, which I think is quite interesting, but I don't want to spoil anything.

i made a bouncing ball with the sin wave ball

gatgatcode wrote:

i made a bouncing ball with the sin wave ball

nice

Trig is useful for 3d and projects like in my sig

Epsilon_3 wrote:

Trig is useful for 3d and projects like in my sig

Why does everyone forget vectors and polar coordinates?
You can literally convert a line and and a given angle into cartesian coordinates using law of sines!!1!!1! (real)

completeness wrote:

You're not actually using the law of sines, it's just the definition of sine

Though the components of a vector do form a right triangle, you can still call it the law of sines. The definition of sine only applies to right triangles, whereas the law of sines applies to any SAA triangle.

Vaibhs11 wrote:

Epsilon_3 wrote:

Trig is useful for 3d and projects like in my sig

Why does everyone forget vectors and polar coordinates?
You can literally convert a line and and a given angle into cartesian coordinates using law of sines!!1!!1! (real)

Ik i used that in on of my projects

ISTILLMAKESTUFF wrote:

Ik i used that in on of my projects

I used it while making a project where you drive a car sprite across the screen, in JS

I think a better explanation of sines, cosines and tangents might be
“Where there is a triangle of length 1 and the angle given, sine is the vertical position of the unknown point, cosine is the horizontal position of the unknown point, and tangent is the slope of the hypotenuse, which goes to the unknown point.”

Useful for making random clock positions that aren’t the most accurate.

Also has anyone mentioned

move () steps

Yet?

ThisIsTemp1 wrote:

Useful for making random clock positions that aren’t the most accurate.

Also has anyone mentioned

move () steps

Yet?

Why?

It can be manually re-created, but it's a relatively unremarkable block otherwise. Yes, it uses trig, but it's existence is not itself remarkable.