Solved Shrinking Particle Circle

Hey,
anyone knows how i can display an circle that can spawn with specific radius and shrinks into the feed of the player.

If i use this code:

Code:

t += Math.PI/16;
                    double x = 1.5*Math.sin(t);
                    double y = 0;
                    double z = 1.5*Math.cos(t);

 

Hey.

What do you mean by 'the feed of the player'?

 

I think it starts big and slowly decreases as it moves to the center of the player. "Feed"

 

@Sulphate @Wispyy

I think he just misspelled the word "feet."

 

@ollinator01
Maybe dampening the radius in each iteration?

Code:

cos(theta) * Math.exp(-0.1 * time) * initialRadius

-0.1 is some random value, you need to adjust it to fit your needs.
We didn't have 'e' at school yet (next topic actually), but it seems like a shorthand for an exponential function for now.
That will cause it to exponentially shrink (from 1 to nearly 0), so the schrinkage will get slower and slower.

If you want a linear schrinkage, just subtract your desired linear function:

Code:

cos(theta) * initialRadius - 0.5 * time

This will subtract "0.5" times the "time" from the radius, which lets it shrink by a constant amount per "time".
You can change 0.5 to whatever you please, or substitute it for any equation.

I think that will work, but I haven't tested it.

 

I would explain how to do it not using sin and cos but eh whatever, I suppose it's not needed.

 

@Sulphate, lol. Unless you like boxes, you've got to use some trig.

 

Yep, @I Al Istannen it works fine!
Thanks all of you for the help, have a nice day.

 

@Tecno_Wizard I was gonna go down the path of the equation of a circle, but meh

 

@Sulphate

The equations that describe a circle in Euclidean geometry are derived from Sine and Cosine, so I'm not sure what difference it makes. It's simpler to express it this way.

 

Yeah I know I'm just stupid and excessively complicated