Dweets awesomed by u/robbyg

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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taupelink

remix of d/23835 by u/taupelink

function u(t) {

for(i=k=256;i--;x.fillRect(k*X,k*Y,k*S(3*Y)/5**t,q*C(4*X)))f=k/t+i*t,X=f*f%8,Y=X*f%5,q=i,x.fillStyle=R(q*=C(3*X),q*=C(2*Y),q^=i,i/(k+q/t))

Sep 13 2021 5:57 PM UTC

}// 138/140

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d/23843

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rodrigo.siqueira

remix of d/23837 by u/sandromiccoli

function u(t) {

K=c.width=2e3;for(i=50;i--;)for(j=25;j--;x.fillRect(50*i,50*j,45,45))o=34&(C(i+t/K)+S(i+j+t/K))*3e5,x.fillStyle=R(p=o*S(C(i-t)*8)*8,p*S(j))

Sep 13 2021 1:41 PM UTC

}// 139/140

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W.O.P.R.

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sandromiccoli

function u(t) {

c.width=2e3;for(i=0;i<50;i++)for(j=0;j<25;j++){o=C(t+C(i)-C(j))*255;x.fillStyle=R(o,o,o,0.95);x.fillRect(50*i,50*j,45,45)}

Sep 13 2021 12:23 AM UTC

}// 122/140

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inhale/exhale

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rodrigo.siqueira

remix of d/23827 by u/rodrigo.siqueira

function u(t) {

for(i=420;r=--i>>2;i&3||x.beginPath(x.fill()))x.fillStyle=`hsl(1,60%,${90-3*r}%`,x.arc(960,580,(t<2?t:2)*20*r,a=(i+S(r/S(i)-t))/.9549/.6,a)

Sep 10 2021 8:17 PM UTC

}// 139/140

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Floating Pieces

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rodrigo.siqueira

remix of d/23817 by u/pavel

function u(t) {

for(i=420;r=--i>>2;i&3||x.beginPath(x.fill()))x.fillStyle=`hsl(177,42%,${90-3*r}%`,x.arc(960,580,24*r,a=(i*2-.5+S(r/9-t*8))/.9549,a)

Sep 10 2021 8:10 PM UTC

}// 132/140

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Moving triangle wings #triangles

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pavel

remix of d/19550 by u/tomxor

function u(t) {

for(c.width=w=127,i=9087;i--;t?p&u[r=i+w+r%3]<1&&--u[i]&++u[r]:u[i]=r)x.fillRect(X=i&w,Y=i>>7,.5,p=u[i]),v=Y-36,r=(X/3-21)**4>v*v?2:i*t|Y<30

Sep 10 2021 2:03 AM UTC

}// 140/140

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Overfilled #hourglass

u/pavel

#time
u/rep_movsd

Amazing!
u/tomxor

Excellent! makes me wonder what else we can do with this stuff...

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pavel

function u(t) {

for(i=420;r=--i>>2;i&3||x.beginPath(x.fill()))x.fillStyle=`hsl(177,42%,${90-3*r}%`,x.arc(960,580,24*r,a=(i*2-.5+(~r%2|1)*C(t-r/9))/.9549,a)

Sep 8 2021 11:34 PM UTC

}// 139/140

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3x33 [A] by twitter.com/tequibo

u/rodrigo.siqueira

What is Pavel's Twitter account?
u/pavel

twitter.com/pavelbahilov I have plans to post but I don't currently

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pavel

function u(t) {

for(i=c.width|=t%=1,s=60*2**t,r=.71+.29*t;i--;x.fillRect(((i&60)+Y%2*2+r*C(a=.7854*(2*i+t-1))-t-.5)*s,(Y*2+r*S(a)-.5)*s,s,s))Y=i>>6

Sep 8 2021 6:43 PM UTC

}// 131/140

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Check this out

Show more comments…
u/UEZ

Looks very nice and smart coded. One noob question: which colors will be used in the loop by default when you don't use fillStyle? I saw many examples without fillStyle but the result is not monochrom. Thx.
u/rep_movsd

The default fill color and stroke color are black. Colors have to be set with fillStyle, strokeStyle or perhaps even setting the background (rare)
u/pavel

The default color for fill, fillRect, stroke, strokeRect is black and you need to call fillStyle or strokeStyle respectively. You must have seen other drawing techniques, maybe like putImage or using style attributes to add a filter over the B&W colors.
u/pavel

Haha looks like we answered at the same time and eerily similarly.
u/UEZ

Hmm, when I look to https://www.dwitter.net/d/23732 I cannot see any strokeStyle/fillStyle but the color result is greyscale.
u/pavel

Gray can be achieved by spacing out black pixels amongst white ones. d/23773 shows this clearest.

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ArthurThuczsec

remix of d/22683 by u/Xor

function u(t) {

x.fillRect(t*99,0,t/9,9e9)

Sep 6 2021 8:40 PM UTC

}// 26/140

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ArthurThuczsec

remix of d/7818 by u/Cistoran

function u(t) {

x.fillStyle="#1061"
for(x.fillRect(i=0,0,I=2e3,I);i<I;x.fillStyle=`hsl(${i/9} 99%60%`)x.fillRect(i+=4,540*S(t+i*(t/2|0))*3,20,30)

Sep 6 2021 7:56 PM UTC

}// 129/140

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