Dwitter - javascript demos in 140 characters

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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username

remix of d/14543 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=i=219;i--;restore(fillText("𝐀 BOAT⛵",9,960,1960)))save(font=(69+7*S(i/9+t*2))+"em'"),beginPath(clip(rect(9*i,0,9,2e3)))

Jun 12 2019 8:44 PM UTC

}// 139/140

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a boat

u/username

I know the original is "adrift" and not "a drift" (which would not make any sense) but hey. the mismatching font makes it even funnier

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀪🐱𞱦𫱲𚁪🐹𞱪𛐭𞰩𮱸𛡢𩑧𪑮𤁡𭁨𚀩𞱦𫱲𚁩🐴𞱩𛐭𞰩𮀮𨑲𨰨𞐶𜀫𠰨𪐪𜐮𝐷𛑴𚠵𚐪𝀰𜀬𝐴𜀫𤰨𪐪𜐮𝐷𛑴𚠵𚐪𝀰𜀬𜠰𜀬𭀪𞀬𭀪𞀩𞱸𛡦𪑬𫀨𚑽𞱸𛡢𩑧𪑮𤁡𭁨𚀩𛁸𛡡𬡣𚀹𝠰𛀵𝀰𛀶𜀰𛀲𜀰𛀰𛀷𚐻𮀮𫁩𫡥𥱩𩁴𪀪🐱𜠻𮀮𬱴𬡯𪱥𚀩`.replace(/uD./g,'')))

Jun 12 2019 9:32 AM UTC

}// 139/140

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Square.

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comiccobe

remix of d/14565 by u/magna

function u(t) {

with(x)font="70em impact",fillText("WOO",0,999,1920),(d=getImageData(0,0,2e3,2e3)).data.copyWithin(Math.random()*4e7),putImageData(d,0,0)

Jun 14 2019 8:13 AM UTC

}// 137/140

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vinca

function u(t) {

for(c.width|=i=9;i--;x.fillRect(400+i*99+S(t+S(t*i))*300,400,50,S(i/2+t*2)*200))x.fillStyle=R(S(a=t+i/4)*255,S(2*a)*255)

Jun 13 2019 6:18 AM UTC

}// 121/140

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katkip

remix of d/14549 by u/katkip

function u(t) {

for(c.width|=j=9;j--;){x.beginPath();for(i=9;i--;)x.lineTo(360+j*119+S(t)*300+C(i*1.57+.78)*40,540+S(i*1.57+.78)*160);x.fill()}

Jun 12 2019 9:50 AM UTC

}// 127/140

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Default but made of x.lineTo #default

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katkip

function u(t) {

c.width*=1;for(j=9;j--;){x.beginPath();for(i=4;i--;)x.arc(360+j*119+S(t)*300+C(i*1.57+.78)*40,540+S(i*1.57+.78)*160,0,0,0);x.fill()}

Jun 12 2019 9:47 AM UTC

}// 132/140

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Default but made of arcs #default

u/Xen

nice

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katkip

remix of d/14532 by u/rodrigo.siqueira

function u(t) {

c.width|=0;for(X=-3;X<3;X+=.1){for(Y=-3;Y<3;Y+=.1)Q=(P=-t+X*X+Y*Y)*C(P**.1),Dx=-Y+X*Q,Dy=X+Y*Q/8,x.fillRect(960+Dx*40,850+Dy*40-Q*99,5,5)}

Jun 11 2019 4:01 PM UTC

}// 138/140

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Tried to make a black hole gravity visualisation

u/joeytwiddle

There are two bytes free if someone wants to add Hawking radiation

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username

remix of d/5321 by u/hoplite

function u(t) {

i=c.width=96;for(;i--;)for(k=54;k--;)x.fillStyle=`hsl(${(S(i/9+(j=t+(k-i)/99))*S(k/7)+S(k/9+j)*S(i/7-j))*255},99%,50%)`,x.fillRect(i,k,1,1)

Jun 11 2019 9:06 AM UTC

}// 139/140

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#randomremix no 8 - distorted

u/donbright

#plasma
u/katkip

Awesomed!

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KilledByAPixel

remix of d/14516 by u/KilledByAPixel

function u(t) {

t+=3;with(x)save(font=t*4+"em'"),beginPath(clip(rect(0,t*60,3e3,1))),fillText("𝔻𝕎𝔼𝔼𝕋",q=840-t*99,350),restore(fillText("𝕎𝔸ℝ𝕊",q+119,650))

Jun 11 2019 3:21 PM UTC

}// 137/140

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#DweetWars #uncompressed

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taupelink

remix of d/14533 by u/rodrigo.siqueira

function u(t) {

m=1e3;n=100;R=Math.random()*3;X=R*C(v=t*n);Y=R*S(v);Q=R*R*S(3/R);x.moveTo(A=960+m*X,B=540+m*Y);x.lineTo(A+(-Y+X*Q)*n,B+(X+Y*Q)*n);x.stroke()

Jun 12 2019 9:29 PM UTC

}// 140/140

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Slow-building remix with polar coordinates and random r #math