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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: #Food

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bobbymonboy

remix of d/739 by u/donbright

function u(t) {

c.width=900;半=450;for(i=0.0;i<720;i+=0.1){x.lineTo(半+C(i*t/20)*i,半*9/16+S(i*t/20)*i)};x.stroke();

Jun 4 2021 8:02 PM UTC

}// 97/140

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Slower, Fullscreen

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tomxor

remix of d/22986 by u/tomxor

function u(t) {

for(c.width=p=w=64;a=R*S(t),b=R*C(t),p<3e3;u=p/32%2-1)C(Y=R*p/2e3-R/2)>T(S(u*b-a)*S(Y+t+a)*S(u*a+b))&R<8?R+=.1:x.fillRect(p%w,p++/w,R/9,R=1)

Jun 4 2021 7:31 PM UTC

}// 140/140

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Indecisive Paint

u/tomxor

#raymarching
u/KilledByAPixel

Nice, looks alive!

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Tekmap

remix of d/10817 by u/ellisk1

function u(t) {

c.width=99;x.translate(1,1);for(j=157;j--;x.rotate(.01))for(i=125;i--;)x.fillRect(i,0,i<72?C((j-t/3)*i/3)/1:T(j*i+t)<.9-(i+2*S(j/2)<75),1)

Jun 4 2021 7:30 PM UTC

}// 138/140

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Quantum asdlkfj

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KilledByAPixel

remix of d/22945 by u/KilledByAPixel

function u(t) {

for(c.width=j=w=99;j<6e3;T+=T/99)(a=T+t*9&j%w/50*T-T^-j/7e3*T+T/2+2)%25||x.fillRect(j%w,j++/w|0,1,1,x.fillStyle=`hsl(${T+a*9} 99%${T}%`,T=1)

Jun 4 2021 7:28 PM UTC

}// 140/140

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Sierpinski Highway - Voxel Raycasting with Color!

u/Odog8

WOW
u/tomxor

oooh, colour! could be interesting since 1/d is so dull

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Tekmap

remix of d/22525 by u/Xen

function u(t) {

c.style.filter=`blur(1vw)contrast(90`
for(c.width|=z=i=19;i--;)for(j=2*z;j--;)x.fillRect(99+i*99+S(t-j/4*z)*300,400+j*z,50,z)

Jun 4 2021 6:58 PM UTC

}// 125/140

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sdfñlkgjsd gsldkjf pop #fire

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Tekmap

remix of d/22983 by u/initramfs

function u(t) {

for(c.width|=j=9,2*x.translate(960,54);j--;x.rotate(t/9+2*j))for(i=250;i--;x.fillRect(i*9-90,90*T(t*(j%5)-i/1)-a/2+9+50*j,10,a))a=40*S(i/5)

Jun 4 2021 6:26 PM UTC

}// 139/140

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lxj375@5%%kk

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Tekmap

remix of d/22850 by u/New_Core

function u(t) {

for(i=a=999;i--;x.fillRect(60+(t*t/2*C(i*1+2/t)+a*C(v=190*i>>4)*9)*Z,900+(200-t*60)*Z,Z*9,-Z))Z=199/(i%a+a/7),x.fillStyle="#0505"

Jun 4 2021 6:16 PM UTC

}// 130/140

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Bamboo Forest

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Tekmap

function u(t) {

for(c.width=i=550;i--;x.fillStyle="#"+i/999)x.fillRect(8,9,5,50,h=(H=i/5-t)<0&&H,x.setTransform(K=C(z=h<2?h:1),S(2*z),C(2/z),K,75*(H+5),99))

Jun 4 2021 5:42 PM UTC

}// 140/140

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disharmonic harmony

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Tekmap

function u(t) {

for(c.width=i=350;i--;x.fillStyle="#"+i*99)x.fillRect(8,9,75,-90,h=(H=i/5-t)<0&&H,x.setTransform(K=C(z=h<2?h:0),-S(-z),S(z),K,75*(H+5),99))

Jun 4 2021 5:25 PM UTC

}// 139/140

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continuum

u/Xen

Welcome to the dwitter family!

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KilledByAPixel

remix of d/22982 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󨼮󭽩󩍴󪌦󟝩󟜱󜌳󝬸󞼭󛝩󞽶󟜽󜭼󭬦󜼪󘝔󦽓󟝩󚼨󪜪󭍞󪜩󙜳󛜱󚼨󭬾󜝼󤼦󜜿󭬦󜬿󛝷󞭷󞬰󚝝󟽔󦽩󧜽󚍔󦽓󧜽󭬩󙬲󟽶󛜲󞬰󞭯󫭭󫽵󬽥󫝯󭭥󟝥󟜾󥍛󭼪󚍥󛭹󚬨󭼯󟝩󫭮󩝲󥽩󩍴󪌩󯌰󚜫󩜮󮌪󭽼󜍝󟝥󛭢󭝴󭍯󫭳󚝸󛭦󪝬󫍒󩝣󭌨󪜥󭼬󪜾󟬷󛌱󛌨󭬽󥍛󪝝󚜯󝜩`.replace(/u../g,'')))

Jun 4 2021 4:58 PM UTC

}// 140/140

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Tiny Sandbox ⌛ Use mouse buttons to place... None 🧼 Erase, L 🌊 Water, M 🧱 Wall, R ⚡️ Lightning Eraser, L+M ⌛️ Sand, R+M 🌱 Vines, L+R ⛈️ Rain Storm, L+M+R 🌪️ Sand Storm

u/KilledByAPixel

Add the code onmousedown=oncontextmenu=_=>!1 to improve usability (prevents other mouse events)
u/KilledByAPixel

#interactive #physics #game
u/KilledByAPixel

#sand
u/SockTaters

This amazes and confuses me. I am stupefied