Top dweets by u/loktar

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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loktar

function u(t) {

eval(unescape(escape`𩡯𬠨𮐽𘑴𙠦𦰰𧑼𯁹𛁷🐲𩐳𛁨🐱𜀸𜀬𪐽𜐬𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜀬𭰬𪀬𜀬𛐱𛁷𛁨𚐻𪐼𭰻𚑹𦱩𧐽𭀦𙠨𮑛𪑝𚰹𚡍𨑴𪀮𬡡𫡤𫱭𚀩𚱹𦱩𛐱𧐩𛰭𜡼𯀭𮑛𪐭𜑝𛁌🐲𜀪𮑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👠𬡧𨠨𜀬𙁻𣁽𛀤𮱌𯐩𨀬𮀮𩡩𫁬𤡥𨱴𚁩𛁨𛀱𛀭𮑛𪑝𚐬𪐫𚰻`.replace(/uD./g,'')))

Jun 19 2019 11:09 PM UTC

}// 138/140

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Just a random scroller original vs is from 2013, https://codepen.io/loktar00/details/BCEvp

u/KilledByAPixel

good texture
u/Xen

very nice!
u/katkip

looks like #waves
u/magna

#texture

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loktar

function u(t) {

eval(unescape(escape`𘑴𙠦𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁣𛡷𪑤𭁨𯀽𜀬𜡥𜰩𞱸𛡦𪑬𫁓𭁹𫁥👒𚀰𛀹𜀬𜐹𞐩𞱦𫱲𚁁🐵𜀰𛁹🐭𠐻𮐼𠐻𮐫𚰩𩡯𬠨𥠽𘑴𙠦𣑡𭁨𛡳𬑲𭀨𠐪𠐭𮐪𮐩𛁘🐭𥠻𦀼𜀻𦀫𚰩𫠽𣑡𭁨𛡲𨑮𩁯𫐨𚐪𥠯𜐮𝐬𫠾𥠫𦀦𙠡𭀦𙡸𛡦𪑬𫁒𩑣𭀨𦀫𜠪𠐬𮐫𠐬𜐬𜐩𞰻`.replace(/uD./g,'')))

Jun 25 2019 2:24 AM UTC

}// 135/140

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#Planet thing.

u/Xen

nice
u/katkip

Awesome #compressed
u/donbright

bruh

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loktar

remix of d/14747 by u/loktar

function u(t) {

for(x.drawImage(c,0,-1),W=-t*6,i=2e3;i;i--)x.fillStyle=`hsl(${t*20},99%,${90*S(W+=.1)}%)`,x.fillRect(i+10*S(9*t),1080,1,-S(W))

Jun 25 2019 10:23 PM UTC

}// 126/140

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Done from scratch instead of following the patterns I had in my original was able to golf it down to an acceptable size.

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loktar

function u(t) {

eval(unescape(escape`𩡯𬠨𢐽𜡥𜰬𢠽𜐰𞀰𛁸𛡤𬡡𭱉𫑡𩱥𚁣𛀰𛀰𛁉𛁊𛀰𛀭𜐬𢐬𢠩𛁌🐡𭀦𙡛𜁝𯁼𣀬𥰽𭀬𪐽𜀻𪐼𢐻𪐫𚰩𣁛𪑝👴🱌𦱩𧐺𤰨𥰫🐮𜐩𛁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𜐹𜀬𞐰𙐬𙁻𞐰𚡌𦱩𧑽𙐩𨀬𮀮𩡩𫁬𤡥𨱴𚁩𚰱𜀪𤰨𜐰𚡴𚐬𢠬𜐬𛑌𦱩𧐩𞱌𛡰𭑳𪀨𣀮𬱨𪑦𭀨𚐩`.replace(/uD./g,'')))

Jun 25 2019 4:33 AM UTC

}// 138/140

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Scrolling waves, original https://codepen.io/loktar00/pen/pJRbOd wish I could have fit color cycling in

u/donbright

kawaii

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loktar

function u(t) {

for(r=100,!t&&x.scale(20,20),i=0;i<r*r;i++)X=i%r,Y=i/r,V=X-r,W=Y-r,d=V*V+W*W,x.fillStyle=R(d%(250*C(t)),0,d%(250*S(t))),x.fillRect(X,Y,1,1);

Jun 20 2019 11:54 PM UTC

}// 140/140

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Started as something completely different, thought this looked neat and fit in the limit.

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loktar

function u(t) {

for(S=10,D=750,x.scale(3,3),i=0;i<D*D;i+=S)!t&&x.fillText(~~(2*Math.random())?"╱":"╲",i%D,~~(i/D)*S);

Jun 25 2019 12:54 AM UTC

}// 101/140

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#c64 10 PRINT CHR$(205.5+RND(1)); : GOTO 10

Show more comments…
u/loktar

Always a bit longer in JS than on the Commodore.
u/loktar

If not for having to scale to make it viewable it can actually be smaller, removing scale and doing 2e3, vs 750 produces a nice result fullscreen.
u/loktar

#maze wow, some amazing implementations I'm glad I didn't check prior lol.
u/andrea270872

I learned programming with a C64! Ah, the nostalgia :)
u/loktar

@andrea270872 same here actually, although I've accumulated many more Commodores and various models since then haha
u/joeytwiddle

I just learned about that book today, through a different channel
u/joeytwiddle

C64 lovers might like this: http://www.oneliner64.com/

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loktar

remix of d/14759 by u/loktar

function u(t) {

with(x)for(s=2e3,drawImage(c,0,2),i=s;i>0;i-=Math.random()*s)fillStyle=`hsl(${t*i},50%,80%)`,beginPath(),arc(i,0,15,0,6),fill()

Jun 25 2019 9:43 PM UTC

}// 127/140

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Shaved off a few bytes

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loktar

function u(t) {

eval(unescape(escape`𘑴𙠦𚁚👙🐵𝀰𚐬𮀮𬱨𨑤𫱷𠱯𫁯𬠽𨁲𩱢𨐨𜠵𛀱𝀬𜀬𛠶𚑠𛁸𛡳𪁡𩁯𭱂𫁵𬠽𝐬𮀮𩡩𫁬𤱴𮑬𩐽𨁲𩱢𚀱𜰹𛀶𞐬𜐴𚑠𛁸𛡢𩑧𪑮𤁡𭁨𚀩𛁸𛡡𬡣𚁚𚰽𠰨𜠪𭀫𜠪𣑡𭁨𛡲𨑮𩁯𫐨𚐩𛁙𚰽𤰨𜠪𭀩𛀵𝀰𛐶𜀪𭀬𜀬𜠪𣑡𭁨𛡐𢐩𛁸𛡦𪑬𫀨𚐻`.replace(/uD./g,'')))

Jun 20 2019 2:18 PM UTC

}// 132/140

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A bit crappy.

u/Xen

nice!
u/tactical_retard

#poop

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loktar

function u(t) {

for(c.width|=0,X=10,z=-1e3,i=0,f=C(t)*400+2e3;i<f;i++)v=f/(f+z),x.beginPath(),x.arc(-z+X*C(i+t)*10*v,X*i/12*v,5*v,0,6.28),x.fill()

Jun 26 2019 1:57 AM UTC

}// 130/140

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u/Xen

nice

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loktar

remix of d/14768 by u/loktar

function u(t) {

for(i=1,x.drawImage(c,0,-1);i<2e3;)Q=((S(i*.01)/2+.6)*140)+C(t)*80,L=Q,x.fillStyle=`hsl(${L/4},90%,50%)`,x.fillRect(i,1080,1,-Q),i++

Jun 26 2019 12:02 AM UTC

}// 133/140

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Kind of prefer the orange

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