Top dweets by u/Exca

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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Exca

function u(t) {

t/=4;for(i=0;i<1100;i++){d=C(t+i),s=i==0?2920:9-d*8;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+i)*220*S(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 27 2017 7:58 PM UTC

}// 140/140

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Show more comments…
u/magna

Wow!
u/Xen

impressive first 2 dweets
u/sigveseb

Very nice
u/mrremix

i really like this one... might do a remix later :]
u/CliffJonesJr

I remixed this into a tornado: https://www.dwitter.net/d/4590
u/lionleaf

#twister
u/Cloud

Milk path
u/vain

cool looking twister / tube

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Exca

function u(t) {

c.width|=e=y=>x.fillRect(k,720-y,50,y<0?3:8)
for(i=32;i--;){w=S(i*C(t+i/7))*(32-i)
w*=w/2
while(w>0){x.fillStyle=R(w-=8)
k=i*60
e(w)
e(-w)}}

Jan 5 2018 2:05 PM UTC

}// 140/140

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Thanks for helping with the last few bytes go to poro

u/sigveseb

the reflections really make this one!
u/joeytwiddle

Very cool. Here is a retro-spect-rum: d/2411

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Exca

remix of d/6153 by u/BackendForth

function u(t) {

c.width|=0
for(i=77;i--;){q=i%7
if(('¾i989i¾'.charCodeAt(e=i/7|0)>>q)%2)x.fillRect(e*90*S(t)+900+S(t)*280,-q*90+840+C(t)*180,90,90)}

Jan 17 2018 9:15 PM UTC

}// 136/140

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u/joeytwiddle

#alien #spaceinvaders #sprite

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Exca

function u(t) {

with(x){drawImage(c,0,6)
fillStyle="#fff"
fillRect(0,0,1920,6)
fillStyle=R()
w=S(t)*C(t^7)*400+480
fillRect(0,0,w,9)
fillRect(1920-w,0,w,9)}

Jan 16 2018 5:02 PM UTC

}// 140/140

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u/sigveseb

cool
u/joeytwiddle

#pattern #shape #face #vase #illusion

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Exca

remix of d/5768 by u/ellisk1

function u(t) {

q=w=>{x.fillStyle=R(280-w,150-w);x.fillRect(S(n=k+t/2)*w*4+960,C(n)*w*4+540,w+5,w+5)}
for(k=29;k--;)
for(i=0;i<59;i++)
q(i+(t+k/3)*200%300)

Jan 9 2018 6:42 PM UTC

}// 139/140

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u/magna

Love this!
u/joeytwiddle

#glow

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Exca

remix of d/6122 by u/tillsc

function u(t) {

o=240
b=S(t)
x.drawImage(c,-9,-5,1937+b,1090+b)
for(i=400;i--;)x.fillRect(S(i+t)*o+o*4,C(i-t)*o+o*2,3,3)
x.fillStyle=R(b*o,C(t)*o,S(t/4)*o)

Jan 17 2018 3:54 PM UTC

}// 140/140

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u/Qwitter

Wow the color sequence!

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Exca

function u(t) {

for(i=0;i<5184;i++){w=i%96,q=i/96|0,e=128+S((w-45)/(q-28)+t)*400;x.fillStyle=R(w/96*e,q/96*e,.5+.5*C(t)*e);x.fillRect(w*20, q*20, 20,20)
}

Dec 28 2017 12:32 PM UTC

}// 138/140

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u/Xen

nice style

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Exca

function u(t) {

for(i=0;i<5184;i++){q=i%96,w=i/96|0,r=q+w==0?192:S(t+q*w),y=r*99;x.fillStyle=q+w==0?"#000":R(0,y*2,y*4,1);x.fillRect(q*20,w*20,r*20,r*20);
}

Dec 27 2017 3:10 PM UTC

}// 140/140

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u/sigveseb

Good colors
u/CliffJonesJr

This is what my carpet looks like after mushrooms.

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Exca

function u(t) {

x.drawImage(c,6,0)
x.fillStyle="#fff"
x.fillRect(0,0,6,999)
x.fillStyle=R()
q=w=>x.fillRect(0,S(t+w)*399*S(w)+540,9,w)
for(i=9;i--;)q(i*4)

Jan 14 2018 12:53 AM UTC

}// 138/140

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u/dogspace

very nice

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Exca

function u(t) {

//Pen!
r=v=>x.fillStyle=R(v,v,v,1)
x.fillRect(r(255)|0,340,1920,49)
x.fillRect(r(0)|960+C(t)*250*S(t/3),340,6,49)
x.drawImage(c,S(t)/4,1.2)

Dec 29 2017 4:59 PM UTC

}// 139/140

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