Dweets awesomed by u/eruonna

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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yonatan

remix of d/2641 by u/yonatan

function u(t) {

for(X=c.width=256;X-=2;)for(Y=148;Y-=2;x.fillStyle=`hsl(${A=(X*C(t)-Y**S(t))&(Y*C(t)+X**S(t))},${A=A*t%50+25}%,${A}%`)x.fillRect(X,Y,2,2)

Apr 28 2017 10:44 PM UTC

}// 137/140

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u/donbright

game changer
u/joeytwiddle

Wow! :D
u/yonatan

hmm, 15 FPS here and 30 on https://dweet.dwitter.net/id/2643?autoplay=1

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eruonna

function u(t) {

if(!t)a=578,b=500
d=[262,578,0,0,500,500,"red","#0f0","blue"]
i=~~(Math.random()*3)
a=.5*a+d[i];b=.5*b+d[i+3]
x.fillRect(a,b,1,1)

Apr 27 2017 8:05 PM UTC

}// 129/140

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eruonna

function u(t) {

if(t%1<.01){c.width|=0;x.font="48px monospace"
for(i=127;--i;)for(j=33;--j;)x.fillText(Math.random()>.5?"\\":"/",i*15,j*35)}

Apr 26 2017 8:48 PM UTC

}// 124/140

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u/donbright

ingenious
u/sigveseb

classic old-school effect :)
u/rep_movsd

#10print
u/rep_movsd

#tenprint

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New_Core

function u(t) {

i=h=c.width|=0;d=~~(h-t%30*60);while(i--)x.fillRect(i,a=700+200*S(t+i/599)*S(t+i/-80),1,h),i==d?b=a:0;x.font=8+'cm a';x.fillText("⛴",d-99,b)

Apr 26 2017 8:04 PM UTC

}// 140/140

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u/magna

I don't see the boat. Chrome on macOS.
u/magna

Ah, I see it on Chrome on Windows though. Nice!!!
u/New_Core

font maybe to big for macOS, try change it to 5 cm or so, might work
u/magna

6 works on macOS
u/New_Core

#water
u/New_Core

#sea #ocean

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rileyjshaw

function u(t) {

for(n=200,c.width|=0,i=2e3;i--;x.lineTo(i,540-S(t*i/n)/t*n*n))x.fillStyle=R(S(t)*n,S(t+2)*n,S(t+4.2)*n);x.fill()

Apr 26 2017 7:56 PM UTC

}// 112/140

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Stripey wiper

u/iverjo

+1 for the novelty

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magna

remix of d/2594 by u/magna

function u(t) {

w=c.width=192;for(i=w;i--;)for(j=108;j--;'PP`ĀCDHH'.charCodeAt(j&7^(t/w*X*Y&1)*7)-64&1<<(i%8^(X+Y&1)*7)&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3

Apr 26 2017 5:10 PM UTC

}// 138/140

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Truchet tiles #2

u/magna

@todo: filled version
u/magna

Filled version: https://www.dwitter.net/d/2604
u/iverjo

#dots
u/magna

#truchet
u/katkip

#tagfail

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vvarr

function u(t) {

i=q=c.width=2e3
for(;i--;x.fillRect(o*C(a)*z+q/2,(r*S(b)+190)*z,z*=z/2,z))z=q/((o=2e2+(r=25+9*C(6*S(a=i/310-t)))*C(b=i%50/8))*S(a+=2*t)+710)

Apr 26 2017 12:06 AM UTC

}// 140/140

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u/donbright

wwooooahhh!!!
u/rileyjshaw

for(i=q=c.width|=0;i--;... can save a few bytes :)
u/Kalanchoe

oh wow! this is mind-blowing
u/sigveseb

Very cool stuff
u/vvarr

Thanks a lot guys, my first dweet! ^^

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nystrand

remix of d/1968 by u/nystrand

function u(t) {

for(l=c.width|=a=C(t),b=S(t);l--;x.fillText(i*z^39,(k-a*i-b*a*j)*z+899,(i+b*j+a*k)*z+500))i=a*S(l),k=3+C(l),j=S(p=l/79)*k,k*=C(p),z=99-a*j*9

Apr 23 2017 5:49 PM UTC

}// 140/140

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u/donbright

best dwitter torus?
u/sigveseb

nice!
u/keithclark

Why not use x.fillRect((k-a*i-b*a*j)*z+899,(i+b*j+a*k)*z+500,6,6)? it renders faster and is smaller
u/mxfh

Print and connect the dots. Or do it on screen for lasting impact.

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keithclark

function u(t) {

for(a=c.width|=l=C(t),m=S(t);a--;x.fillRect((d*l-e*m)*h+960,(g*l-f*m)*h+520,h/=50,h))d=S(a*92),e=S(a),f=C(a*.7),g=d*m+e*l,h=800/(3+g*m+f*l)

Apr 23 2017 11:33 AM UTC

}// 139/140

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A point cube spinning on two axis with perspective

Show more comments…
u/hscells

this is really nice
u/donbright

great job!
u/magna

Awesome!
u/cantelope

very nice!
u/joeytwiddle

#cube #dots
u/vain

damn cool

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cantelope

function u(t) {

cx=(c.width|=0)/2,cy=340
for(i=99;i--;)for(j=59;j--;)X=i/2-25-C(t)*2,Y=3+S(i/5)*S(j/5+t*3),x.fillRect(cx+1/j*X*cx,cy+Y/j*cx,s=99/j,s)

Apr 22 2017 6:28 PM UTC

}// 133/140

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u/innovati

🌊🏄
u/joeytwiddle

Beautiful
u/cantelope

innovati, i can't tell what those emojis are. lel.
u/Renaud___

great

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