Dweets awesomed by u/firegodjr

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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BalintCsala

remix of d/7648 by u/firegodjr

function u(t) {

c.width=200
r=1.57
for(w=2;w--;x.stroke())for(s=5;s--;)for(i=2;i--;)x.lineTo(C(A=t+(i+s+w)*r)*50/(z=S(A)/3+1)+100,50+(s%2*60-30)/z)

Apr 16 2018 8:41 AM UTC

}// 131/140

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Golfed it a bit and

u/BalintCsala

added perspective
u/firegodjr

Excellent :D
u/iverjo

#cube

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Galaxtone

function u(t) {

for(i=0;i<10;i++){x.fillStyle=R(S(t)*255,C(t)*255);x.beginPath();
x.ellipse(400+i*99+S(t)*300,S(t)*99+400,50,C(t)*99+200,0,0,3,1);x.fill();}

Apr 16 2018 12:39 AM UTC

}// 140/140

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141/140 I broke the matrix

u/prplz

When the order of your for loop isn't important you can make it count backwards like this for(i=10;i--;)
u/Galaxtone

oh nice thx for the tip I'm new to this code-golfing site
u/Galaxtone

also I saw something about using with(x) so I think I'll use that for future stuff :p
u/Galaxtone

for(i=10;i--;)with(x){fillStyle=R(S(t)*255,C(t)*255);beginPath(); ellipse(400+i*99+S(t)*300,S(t)*99+400,50,C(t)*99+200,0,0,3,1);fill()} Saved 5 whole bytes using that

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ETHproductions

function u(t) {

for(c.width|=i=128;i--;)for(j=39;j--;x.fillRect(210+j*40+i*q-g,200+i*6*C(q/6),g*2,7))q=S(t*2-i/99-j/6),g=(S(i/2+j*3-t*9)*5+5)*(i>25||i/25)+1

Apr 15 2018 10:53 PM UTC

}// 140/140

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Based on a tweet from @beesandbombs https://twitter.com/beesandbombs/status/9841…

u/ETHproductions

I only noticed right after posting that u/BalintCsala had already made his own interpretation d/7646
u/joeytwiddle

#cloth #material or maybe just beads on a string

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jylikangas

function u(t) {

with(x)for(rect(T(-t)*9,111,c.width=220,i=-1);i++<2;stroke())translate(X=!i*99,X-!!i*22+C(4*t)*-~i)&rotate(t)&rect(9,9,-18,-18)&rotate(t=-t)

Apr 15 2018 3:48 PM UTC

}// 140/140

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Walking boxes

u/jylikangas

Dwitter implementation of http://muuficom.tumblr.com/post/87229339929

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BalintCsala

function u(t) {

for(c.width=i=800;i--;x.fillStyle=`hsl(${i+t*50},80%,50%`)x.fillRect(S(i/99+t/2)*99/(z=i/300)-(w=99/z)/2+400,(99+S(i/50+t)*60)/z+200,w,9/z);

Apr 15 2018 3:41 PM UTC

}// 140/140

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Rainbow road

u/aleamb

nice colors!
u/iverjo

#rainbow

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jylikangas

function u(t) {

for(c.width=i=-1;i++<125;)for(j=75;j--;x.fillRect(99+i-j,(i+j)/(2+T(t)/2)+!h,h|1,~h))h=t+j/13&i/9-t*6,h*=(h<5)*5,x.fillStyle=R(0,i+j,!h*200)

Apr 14 2018 4:56 PM UTC

}// 140/140

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Isometric Islands

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New_Core

function u(t) {

for(w=c.width|=i=30;i--;x.rect(-Z/2,-Z/2,Z,Z))Z=w/(a=i-t%2+2),x.setTransform(k=S(b=a/4*S(t)),l=C(b),-l,k,960,540)
x.fill("evenodd")

Apr 14 2018 2:40 PM UTC

}// 131/140

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u/Chafik.Design

That's something really classy!

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acnologia

function u(t) {

c.width=1920;for(i=0;i<1920/50;++i){for(j=0;j<c.height;j+=50){x.beginPath();x.arc(i*50,j,(S(i*t+j*t/100)+1)*9,0,Math.PI*2);x.fill();}}

Apr 14 2018 11:37 AM UTC

}// 134/140

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jylikangas

function u(t) {

c.width=-1
for(j=k=50;j--;)for(i=99;i--;x[f='fillRect'](k+i,Y=j+k-(h=i<k?i:-i+k*2)/2,1,h)&x[f](i,Y+j,i,.03))x.fillStyle=R(k*(j?i<k:3)+t%3*i)

Apr 14 2018 8:10 AM UTC

}// 140/140

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Box of shading tricks

Show more comments…
u/jylikangas

Could have saved another byte by replacing k*2 with 99
u/yonatan

and one more by replacing -i+k*2 with k*2-i
u/iverjo

#cube
u/joeytwiddle

#lighting
u/donbright

dddddaaammmnnnn
u/katkip

#d3

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Agnes

function u(t) {

for(c.width|=i=0;i++<100;f=1-i/100,x.fillStyle=R(o=255*f,o,o,1-f),x.font=4*i+"px A",x.fillText("Neat text",200*(1+f*S(t)),540+200*f*S(t)));

Apr 13 2018 9:13 PM UTC

}// 139/140

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u/DirtyDan

Neat.

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