Dweets awesomed by u/saon

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #Opposites

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LimeLaser

function u(t) {

r=Math.random
p=t?p:Array(999).fill().map(z=>({x:1920*r(),y:1080*r()}))
p.forEach((z)=>{x.fillRect(z.x,z.y,1,1);z.x+=6-12*r();z.y+=4-8*r()})

Feb 5 2019 6:19 AM UTC

}// 140/140

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Mold Growth Via 999 Random Walkers

Show more comments…
u/katkip

Wow, nice technique.
u/LimeLaser

Thank you! I used the array instantiation from a dweet I've seen before, but couldn't find again. Your dweets are awesome, btw!
u/pavel

119 r=Math.random;p=t?p:Array(1e3).fill().map(z=>[2e3*r(),1080*r()]);p.map(z=>x.fillRect(z[0]+=6-12*r(),z[1]+=4-8*r(),1,1))
u/donbright

so awesome
u/qm3ster

115 r=x=>x*Math.random() p=t?p.map(([a,b]=[r(1920),r(1080)])=>[a+6-r(12),b+4-r(8),x.fillRect(a,b,1,1)]):[...Array(999)]
u/qm3ster

115 r=x=>x*Math.random();p=t?p.map(([a,b]=[r(1920),r(1080)])=>[a+6-r(12),b+4-r(8),x.fillRect(a,b,1,1)]):[...Array(999)]
u/qm3ster

112 r=Math.random;p=t?p.map(([a,b]=[1920*r(),1080*r()])=>[a+6-12*r(),b+4-8*r(),x.fillRect(a,b,1,1)]):[...Array(999)]. How do I delete comments?

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robbyg

remix of d/12143 by u/katkip

function u(t) {

c.width^=0;for(i=192;i--;)for(j=9;j--;x.fillStyle=`hsl(${h},50%,50%)`)x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)

Feb 4 2019 8:20 PM UTC

}// 133/140

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u/23_Skidoo

x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);for(i=192;i--;)for(j=9;j--;x.fillStyle=hsl(${h},50%,50%))x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)
u/23_Skidoo

Or, replace c.width^=0 with x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);

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rodrigo.siqueira

remix of d/12129 by u/rodrigo.siqueira

function u(t) {

c.width^=Y=0
for(X=2e3;X--;)
 Y=C(Y+t)*X/450,
 x.fillRect(X,540+Y*120,5,5)

Feb 4 2019 2:12 PM UTC

}// 74/140

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A very small bifurcation equation. #attractor

u/rodrigo.siqueira

Animated #bifurcation

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rodrigo.siqueira

function u(t) {

X=Y=0
for(c.width|=i=1e3;i--;){
X=X*C(2*t+Y*2)+Y/4
Y=C(X+Y+X+t/3)-S(i+X+t)/3
x.fillRect(960+X*820,540+Y*400,5,5)
}

Feb 4 2019 2:16 AM UTC

}// 114/140

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Interaction of live attractors

u/katkip

WOWWW #attractor AWESOME
u/donbright

WOAH

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saon

function u(t) {

c.width|=0;for(i=400;i--;)
x.fillRect(960+900*S(t+i),560+i*C(t)+i*C(i),10,i)

Feb 3 2019 7:21 PM UTC

}// 77/140

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saon

remix of d/12065 by u/elaborate

function u(t) {

c.width|=0;for(i=0;i<1200;i+=0.3){
t+=C(i);
x.fillRect(1000+S(t)*300,i,10,10)
};

Feb 3 2019 6:38 PM UTC

}// 80/140

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Try some different step values for pretty varied patterns

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katkip

function u(t) {

Y=t*2+2;x.globalAlpha=.5+.5*C(Y);for(i=99;i--;)x.fillRect(960+S(t-Y)*(-C(t*4+Y+i/99)*(400-i*2)+400),540+C(Y-i/2e4)*(250-C(t*2)*(250-i)),9,9)

Feb 3 2019 9:35 AM UTC

}// 140/140

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Is this attractor?

u/joeytwiddle

https://www.google.co.uk/search?tbm=isch&…

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katkip

function u(t) {

c.width*=1;for(i=360;i--;)x.fillRect(960+C(i/2)*700,700+C((i*3.14)+t)*200,9,30);for(j=2;j--;)x.fillRect(490+j*870,160-25*C(t),90,50+50*C(t))

Feb 2 2019 5:54 PM UTC

}// 140/140

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Dwattr the Monster. #genius #art

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saon

remix of d/12112 by u/saon

function u(t) {

c.width=1920 // clear the canvas
for(i=20;i--;)for(j=20;j--;)
x.arc(960+S(t)*i,540+C(t)*j,j*i*5,i+j,i-j)
x.stroke()

Feb 2 2019 5:54 PM UTC

}// 117/140

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saon

function u(t) {

c.width=1920 // clear the canvas
for(i=4;i--;)for(j=200;j--;)
x.arc(960+S(t)*i,540+C(t)*j,j*i,0,6.28)
x.stroke()

Feb 2 2019 5:51 PM UTC

}// 114/140

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