Dweets awesomed by u/bepisTM

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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BirdsTweetCodersDweet

remix of d/6098 by u/zoulei

function u(t) {

c.width=2e3;v="Z L";x.font="24em ARIAL";for(var   j=0;j<10;j++)for(var i=0;i<10;i++)x.strokeText(v,600+j*S(t),6e2+C(t*2)*20*i);

Jan 25 2018 12:10 AM UTC

}// 127/140

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Golfed and fixed the weird moire when it went up...

u/BirdsTweetCodersDweet

Possibly wrong remix source, oh well - I tried...

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bepisTM

function u(t) {

c.width+=0
for(i=9;i--;)x.fillStyle=`hsl(${40*i-240*t},95%,60%)`,x.fillRect(500+i*100,880+500*((t+i/7)%2)**2-(t+i/7)%2*1e3,50,200)

Jan 24 2018 10:26 PM UTC

}// 130/140

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u/BirdsTweetCodersDweet

Nice!
u/iverjo

#default

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twchapman

function u(t) {

c.width|=0;k=500
t%=60
for(i=0;i<19;i++){z=C(t+i/3)+.5
x.fillStyle=R(0,0,0,.5+z/2)
x.fillRect(800+S(t+i/3)*k,k-z*20,50,200+z*40)
}

Jan 24 2018 10:20 PM UTC

}// 130/140

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u/joeytwiddle

#default henge
u/UEZ

#carousel

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BackendForth

function u(t) {

c.width=1920
for(i=1;i<100;i++,x.fill())x.beginPath(),v=C(t/(i/99)**.5),x.fillStyle=R(i*2,i*2,i*2,.9),x.arc(960+S(v)*i*9,99+C(v)*i*9,i,0,7)

Jan 24 2018 10:19 PM UTC

}// 140/140

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bepisTM

function u(t) {

c.style.backgroundColor='#080';x.fillStyle='#fff',x.fillRect(920+~~t%4*250-t%1*(t%9)/(t%4+1)*690,1e3-Math.abs(C(t%1*8))/(t%1+1)*950,200,300)

Jan 24 2018 10:00 PM UTC

}// 140/140

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Qwitter

function u(t) {

w=c.width^=0;for(i=12;i--;x.beginPath()){k=7*t+t*t;p=k+i*6.3/12;x.arc((125.6*k)%(2*w)-110,w/4,200,p,p+1/2);x.lineWidth=99;x.stroke();}

Jan 24 2018 9:16 PM UTC

}// 134/140

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Ludicrous Speed <i>GO!</i>. <sup>refresh</sup>

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perbyhring

function u(t) {

c.width=1920;h=540;x.fillRect(0,0,1e4,1e4);v=t*1e-5;for(i=0;i<1e4;i++)x.clearRect(i*T(v*i),(C(i%3.14)*h)/C(t*C(i)),T(i%6.18),10);

Jan 24 2018 9:05 PM UTC

}// 129/140

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u/donbright

cool

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yonatan

remix of d/6432 by u/yonatan

function u(t) {

t?c.width|=0:a=[]
for(i=z=960;i--;x.fillRect(X,Y,9,9))[X,Y,I,J,L]=a[i]||[],a[i]=L?[X+I,Y>z?z:Y+J,I,Y>z?J*-.8:J+1,L-1]:[z,z,J%2,-i%70,i*9]

Jan 24 2018 8:40 PM UTC

}// 138/140

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particle fountain

u/Qwitter

They seem so happy.
u/donbright

awesome awesome awesome
u/iverjo

#bounce

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yonatan

function u(t) {

t?c.width|=0:a=[]
for(i=z=960;i--;x.fillRect(X,Y,9,9))[X,Y,I,J,L]=a[i]||[],a[i]=L?[X+I,Y>z?z:Y+J,I,Y>z?J*-.8:J+1,L-1]:[z,0,S(i*t)*3,0,i*9]

Jan 24 2018 8:39 PM UTC

}// 138/140

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u/donbright

interesting way to do particles, looks really good
u/donbright

interesting way to do particles, looks really good

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21medals

function u(t) {

c.width^=0
x.globalCompositeOperation="xor"
for(i=0;i<40;)
x.fillRect(960,540,C(t*i/16)*i*13,S(t*i/16)*i++*13)

Jan 24 2018 8:32 PM UTC

}// 110/140

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u/Qwitter

Cool
u/DirtyDan

Cool, rectangle corners following a spiral pattern
u/innovati

Beautiful!

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