Dweets awesomed by u/Knifa

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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Xen

remix of d/6352 by u/BackendForth

function u(t) {

for(c.width|=i=96;i--;)for(j=54;j--;x.fillRect(i*20,j*19,g,g))g=9+9*S(((i-t)**2+(j-49)**2)**.3+S(t)*j*Math.atan2(j*t,i-t)+t*29)

Jan 23 2018 5:05 PM UTC

}// 127/140

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zanella

function u(t) {

c.width|=0;!t&&(A=[0,1,3,2]);A.forEach((m,i)=>x.fillRect(m*99,(3-i)*270,99,270));window.onkeyup=e=>e.key==A[0]&&(A=A.slice(1),A.push(t*t&3))

Jan 23 2018 2:01 PM UTC

}// 140/140

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Piano Tiles! Click the canvas then type 0, 1, 2 or 3 to play

Show more comments…
u/donbright

lol i cant figure it out... are there instructions on the goal?
u/donbright

lol i cant figure it out... are there instructions on the goal?
u/zanella

donbright: Hah! In the original game, https://play.google.com/store/apps/details?i… , you have to tap the black tiles as fast as you can, and you can't tap the white area. In this dweet, I replaced it with keyboard strokes: you have to hit 0, 1, 2 or 3 depending on the position of the bottommost black tile (0 for the first column, 1 for the second, and so forth). Unfortunately I couldn't add any game logic or score to it.
u/donbright

omg thank you this is great. actually reminds me of DONKEY.BAS by Bill Gates
u/zanella

I've never heard of donkey.bas - and I've been using computers since the good ol' Apple ][ !! Shit, now I'll have to implement donkey.bas on dwitter! :D
u/Xen

love it!

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Knifa

function u(t) {

_=45
c.width^=0
for(i=0;i<_;i++)for(j=0;j<_;j++){$=t+S(i/8)-C(j/4)
w=S($)**.85
x.fillStyle=R(0,T($)*255,w*255)
x.fillRect(_*i,_*j,_*w,_*w)}

Jan 23 2018 9:08 AM UTC

}// 139/140

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u/aleamb

cool
u/donbright

color + width is a nice effect

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mr_daemon

function u(t) {

c.width=1080;for(i=0;i<10;i++){for(j=0;j<40*(2+S(i+8*t)*C(i+t))*i;j+=10){x.fillStyle=R(j,850-j,0,1),x.fillRect(1000-i*99,500-j/2,75,35)}}

Jan 23 2018 12:05 AM UTC

}// 137/140

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@no_identd

remix of d/6364 by u/@no_identd

function u(t) {

_=48
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+(i-_)*(j-_/2)/_
$=S(r)
x.fillStyle=R($*255,t+S(r^5)*255*$,j**$^7)
x.fillRect(i*_,j*_-$*_,_*2,_*2)}

Jan 22 2018 10:59 PM UTC

}// 140/140

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u/joeytwiddle

Waves look good for surfing ... in a lava-proof wetsuit

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@no_identd

remix of d/6363 by u/Knifa

function u(t) {

_=48
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+(i-_)*(j-_/2)/_
$=T(r%i)
x.fillStyle=R($*255,S(r^5)*255*$,j**$^7)
x.fillRect(i*_,j*_-$*_,_*2,_*2)}

Jan 22 2018 10:58 PM UTC

}// 140/140

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Knifa

remix of d/6350 by u/Knifa

function u(t) {

_=48
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+(i-_/2)*(j-_/2)/_
$=S(r)
x.fillStyle=R($*255,C(r*2)*255*$,j*$*9)
x.fillRect(i*_,j*_-$*_,_*2,_*2)}

Jan 22 2018 10:43 PM UTC

}// 139/140

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u/Lazy1337

#plasma

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ipost

function u(t) {

c.width^=0;f=.01;for(i=628;i--;x.stroke())x.beginPath(),x.arc(960+860*S(t+i*f),540+440*C(t+i*f),60+45*S(20*S(t)*S(i*f)),0,6.28)

Jan 22 2018 10:38 PM UTC

}// 128/140

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u/aleamb

Wow!
u/Xen

very smooth
u/DirtyDan

Smart, using f to multiply i to gradually count up to 2 pi

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nickd3000

remix of d/599 by u/iverjo

function u(t) {

for(i=-2;i<2;i+=.05)for(j=-4;j<4;j+=.05)X=j-S(t),Y=i+C(t),x.fillStyle=R(v=9/(j*j%Y*Y)+2/(X*X+i*i),v/4),x.fillRect(j*240+960,i*240+540,12,12)

Jan 22 2018 10:33 PM UTC

}// 140/140

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u/aleamb

cool!
u/Qwitter

Extra awesome
u/donbright

flash gordon
u/rikardlindstrom

Wow!
u/magna

OMG

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veubeke

remix of d/6335 by u/Xen

function u(t) {

c.width^=0
x.globalCompositeOperation='xor'
for(i=24;i--;x.fill())x.beginPath(),x.arc(960+S(i)*C(t*10)*10,540+S(i)*S(t*10)*10,i*20,0,7)

Jan 22 2018 8:06 PM UTC

}// 135/140

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u/Xen

Love it :-)
u/Qwitter

I hear curley... the stooge

dwitter.net | Knifa (1091)