Top dweets by u/Tekmap

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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Tekmap

remix of d/12187 by u/ds0

function u(t) {

c.width|=r=540
for(i=r;i--;){Y=r-(2*i)
W=(2*(r**2+Y**2)**.45)
x.fillStyle=R(255*C(M=t+111*i))
x.fillRect(960-(W/2)+.8*r*S(M),540-Y,W,3)}

Jun 20 2021 8:17 PM UTC

}// 136/140

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Lava Lamp

u/andrea270872

very cool
u/Tekmap

thanks

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Tekmap

remix of d/23112 by u/Tekmap

function u(t) {

for(i=k=1080;--i;x.fillRect(k+X*C(Y),k+X*S(Y),w=i/2**t,w))f=i*t,X=f*f%2e3,Y=X*f%7,x.fillStyle=R(q=i*T(T(X/k-S(Y)))/2,X/4&q,i*S(q/X-Y)/2,.1)

Jun 14 2021 9:38 PM UTC

}// 139/140

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Tekmap

remix of d/3518 by u/lurifax

function u(t) {

for(x.fillRect(0,0,i=2e3,i);i>0;i-=.2)x.clearRect(960+(350+(e=99*S(t/6))*C(b=i/6))*C(d=i%6)*C(t)+e*T(b)*S(t),540+(350+e*S(b))*S(d),2,2)

Jun 9 2021 11:41 AM UTC

}// 135/140

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Rotatio

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Tekmap

function u(t) {

for(c.width=i=350;i--;x.fillStyle="#"+i*99)x.fillRect(8,9,75,-90,h=(H=i/5-t)<0&&H,x.setTransform(K=C(z=h<2?h:0),-S(-z),S(z),K,75*(H+5),99))

Jun 4 2021 5:25 PM UTC

}// 139/140

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continuum

u/Xen

Welcome to the dwitter family!

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Tekmap

remix of d/1604 by u/SpecialAgent

function u(t) {

Λ=36;for(X=72;X--;)for(Y=48;Y--;)x.strokeStyle='hsl('+X*Y*25+',99%,50%)',x.strokeRect(X*Λ,Y*50,Λ,Λ)
x.drawImage(c,T(t)-2,S(t)-2,1924,1084)

Jun 26 2021 7:22 PM UTC

}// 138/140

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Candies shockwave

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Tekmap

remix of d/16741 by u/rnbw

function u(t) {

for(c.width=i=300;i--;)for(j=8;j--;x.fillStyle='#f'+j*24)x.fillRect(i,9-T(a=t-i/80*C(t+i/99)+j*.9)*40,1,Math.max(40*S(a-1.1),0))

Jun 24 2021 4:38 PM UTC

}// 128/140

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psychedelic trigonometry #LSD

u/donbright

great colors
u/aleamb

cool!

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Tekmap

remix of d/23137 by u/Tekmap

function u(t) {

for(i=1e4*(t<5);i--;x.fillRect(960+260*a,540+260*b,.1,1))
S(r=i*t)>0?(a=T(r*i)*3,b=C(r*t)*2):b=S(a)-(a=S(-b)/2+a/2)/5
x.fillStyle=R(99)

Jun 17 2021 1:43 PM UTC

}// 135/140

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Recursive wave #eye

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Tekmap

remix of d/22303 by u/taupelink

function u(t) {

for(i=k=1080;--i;x.fillRect(k+X*C(Y),k+X*S(Y),w=i/2**t,w))f=i*t,X=f*f%2e3,Y=X*f%7,x.fillStyle=R(q=i*T(T(X/k-C(Y)))/2,X/4&q,i*S(q/X-Y)/2,.1)

Jun 14 2021 9:37 PM UTC

}// 139/140

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Tekmap

remix of d/13340 by u/KilledByAPixel

function u(t) {

for(i=0;i<495;x.fillStyle=`hsla(${t-i/2},95%,${i%99}%)`)x.beginPath(),x.arc(960+(Q=1200*C(i*t/2e3))*T(i),540+Q*C(i),i++?99:2e3,0,7),x.fill()

Jun 7 2021 9:38 PM UTC

}// 140/140

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Tekmap

remix of d/10527 by u/yonatan

function u(t) {

for(k=c.width=314;T=k--/5;x.arc(99+(Y*S(t)+X*C(t))*r,80+(2*C(2*T)+C(T))*r,r/2,0,7))X=2*S(2*T)-S(T),Y=S(3*T),r=(9+X*S(t)-Y*C(t))*3
x.stroke()

Jun 5 2021 9:47 PM UTC

}// 140/140

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var Threefoil

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