Dweets awesomed by u/Blacklink

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: #ScaryMovies

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Blacklink

function u(t) {

c.width=1920
for(i=40;i>5;i-=0.005){x.fillStyle=R(20*i,0,0)
x.fillRect((9*(i+60)*S(t+i)+30*(i+20))%2000,((300+50*i)*t+99*i)%900+50*i,9,99)
}

Nov 7 2023 11:00 AM UTC

}// 140/140

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Colored ribbons

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Blacklink

function u(t) {

c.width=1920
for(i=0;i<30;i++)
for(j=0;j<300;j++)
x.fillRect(100*i+10*T(t+.001*j*t*t)+100*C(.01*j)-100,5*j,80+10*S(t+.1*j),5)

Apr 3 2022 10:22 PM UTC

}// 125/140

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Very trippy visual that I might do something with later idk (sorry for spamming some stuff out)

u/andrea270872

bad reception on my old TV! Very nice. Makes me want to hit the top of the screen with my fist :D

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Blacklink

function u(t) {

c.width=1920
for(p=0;p<50*t;p++){d=10*p/t
x.fillRect(d*C(p)+960,d*S(p)+540,20,20)
}

Apr 3 2022 9:59 PM UTC

}// 83/140

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Simple spiral

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Blacklink

function u(t) {

for(i=1;i<15;i++)
for(j=1;j<9;j++)
x.fillRect(50*C(t*i)+130*i-40,50*S(t*j)+130*j-60,3,3)

Apr 3 2022 9:42 PM UTC

}// 88/140

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Very simple spirographs

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Blacklink

function u(t) {

eval(unescape(escape`𪀽𝐴𜀊𨰮𭱩𩁴𪁼👷🐹𝠰𒡯👴𙐴𒡰🐵𜀭𫰥𜐪𚁯🠳𚐪𜰳𒡸𛡲𫱴𨑴𩐨𮠽𫰼𜐿𘐨𩀽𜐰𜀪𫰩𞡯🀲🱯𙐱𚠱𛠶𞠨𩀽𫰼𜰿𜐰𜀭𫰥𜐪𝐰𞡰𛐱𛀱𛠵𝰩𚐊𩡯𬠨𪐽𞐻𪐭𛐻𚑸𛡦𪑬𫁒𩑣𭀨𪀪𤰨𮠩𚱷𚡃𚀭𮠩𛑰𛰲𚱤𚠨𪐭𝀩𛁨𚡃𚁺𚐫𭰪𤰨𛑺𚐭𜐮𝐪𬀬𬀬𜰪𬀩`.replace(/u../g,'')))

May 16 2021 2:20 PM UTC

}// 139/140

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Fun looping animation. Huge thanks to the dwitter discord for helping me golf it down more than 60 characters!

u/Odog8

#default
u/katkip

#loop

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Blacklink

function u(t) {

c.width|=0
for(i=1;i<99;i++){x.save()
x.translate(i*20,540)
x.rotate(i*(Math.pow(t,1.3))*.001+t)
x.strokeRect(-50,-200,99,400)
x.restore()}

Dec 24 2020 1:26 PM UTC

}// 139/140

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The twisting of a rectangle

u/ciaccodavide

Nice!

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Blacklink

function u(t) {

c.width|=0
x.fillStyle=R(49,210,247)
x.fillRect(0,600+30*S(t),1920,999)
x.font=300+30*S(t)+'px A'
x.fillText("🏄‍♀️",900+9*C(t),700+90*S(t))

Dec 1 2019 8:14 PM UTC

}// 139/140

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Surfing! Had to make it pretty simple in order to fit it in, but that's the game :P

u/13thptr

golfed it a bit (131) c.width|=0;b=S(t);with(x)fillStyle="#31d2f7",fillRect(0,600+30*b,2e3,999),font=300+30*b+"px'",fillText("🏄‍♀️",900+9*C(t),700+90*b)

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Blacklink

remix of d/16770 by u/Blacklink

function u(t) {

r=10
m=Math.floor(t/7)+1
c.width|=0
for(var s=0;s<t%7;s+=0.001){x.fillRect(900+250*(2*C(s)+S(2*s)*C(m*s)),550+250*(S(2*s)+S(m*s)),r,r)}

Dec 1 2019 7:31 PM UTC

}// 135/140

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A bit more messy but still very simple parametric equation drawing

u/rep_movsd

#underrated

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Blacklink

function u(t) {

r=10
m=2*Math.floor(t/7)+1
c.width|=0
for(var s=0;s<t%7;s+=0.001){x.fillRect(1000+1000*S(s)*C(m*s)*C(s),500+1000*C(s)*S(m*s)*S(s),r,r)}

Nov 30 2019 9:04 PM UTC

}// 135/140

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Spirograph generator

u/jellyedwards

#waitforit very cool

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Blacklink

function u(t) {

function d(a,b,s,c){if(s<0)return
x.font=s*99+"px a"
x.fillText(c,a*99,b*99)
}c.width|=0
d(5,8,7,"🌍")
d(9+3*S(t),6+3*S(t),2+4*C(t),"🛰️")

Nov 25 2019 1:26 PM UTC

}// 138/140

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Orbiting Satellite

u/Xen

nice idea

dwitter.net | Blacklink (436)