New #physics dweets

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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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𨰮𭱩𩁴𪀽𪐽𝠴𞠨𢀽𪀽𢠽𪠽𫀽𢰽𪰽𜀬𣀽𜐶𚐻𪐭𛐻𮀮𬱴𬡯𪱥𚁮𩑷𘁐𨑴𪀲𡀨𙱍𙰫𦱈𚰽𪀭👘𚡁𛁊𚰽𪠭👙𚡁𛐴𩐭𝐬𣀫👬𚰽𦀪𠐭𦠪𠠬𢰫👫𚰽𦐪𠐭𢰪𠠫𝁥𛐵𛀳𜠬𜁝𚐩𚑘👈𛑌𛁙👊𛑋𛁚👌𛐳𜠬𠐽𚁘𚡘𚱙𚡙𚐯𝐱𜠭𛠵𛁂🐨𦠪𦠫𢰪𢰩𛰲𝐶𛐱`.replace(/u../g,'')))

Jun 29 2024 5:40 PM UTC

}// 139/140

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#Chaotic Double #Pendulum

u/tomxor

Simple eulerian integration but ended up with nice small intervals, with 3840 steps per second. #physics
u/Joachim

:D
u/KilledByAPixel

nice!

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KilledByAPixel

function u(t) {

eval(unescape(escape`󭌿󨼮󭽩󩍴󪍼󟝯󫭭󫽵󬽥󩍯󭽮󟝟󟜾󥌽󜌺󚍘󟝙󟜵󜌰󛍖󟝗󟜲󞜩󒭔󟽯󫭭󫽵󬽥󭝰󟝟󟜾󥌽󜜺󥬽󚍗󟝅󛭹󛼳󛝙󛼹󛍅󛭸󚬳󛝘󚜯󞜊󫽮󫝯󭝳󩝭󫽶󩜽󩜽󟭅󟝥󒭸󛭦󪝬󫌨󮌮󨝲󨼨󦌫󟝖󚬽󚍘󚽖󛜹󝬰󚜪󚬲󟌷󩜵󟼱󞬭󛬸󛍙󚼽󥼪󟜨󦜫󥼭󝜳󜌩󚬪󜬼󜭥󝜿󜜫󜜯󥼺󛜮󞌬󞜹󛌰󛌹󚜩`.replace(/u../g,'')))

Jun 24 2023 8:27 PM UTC

}// 140/140

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Bounce the Ball ⚫ #interactive

u/magna

#physics

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rodrigo.siqueira

remix of d/27249 by u/deobfuscate

function u(t) {

x.beginPath()
for(c.width|=i=9;i--;x.stroke())n=150*i,z=S((i+2)*C(t+i))*140+600,x.lineTo(X=370+n+S(t)*300,z),x.fillRect(X-25,z,50,-200)

Mar 24 2023 1:54 PM UTC

}// 135/140

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Reciprocating motion #default

u/deobfuscate

Definitely cool!
u/magna

#physics

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rodrigo.siqueira

remix of d/26795 by u/hauntedg

function u(t) {

for(c.width|=i=0,q=t*7,d=-150*S(q),a=~~(q/3.14)%2;i<9;i++)x.fillRect(550+(i>7?800+(a&&d):i?i*99:a||d),500+(i>7?a&&-d/2:i?0:a||d/2),50,200)

Jan 10 2023 6:10 PM UTC

}// 138/140

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remixed to #default

u/deobfuscate

#physics

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tomxor

remix of d/25759 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𜀻𪐭𛐻𥀽𤰨𜠪𭀫𜠪𣑡𭁨𛡡𭁡𫠲𚁃𚁘𛰸𚐬𤰨𭀫𦐯𞀩𚐩🠰𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐭👡𛁖𛐽𨠩𞱁𚰽𥐯𝀸𚱷𛁁𙐽𭰬𠠫👖𛰲𝀫𭰬𠠥👷𛁖𚰽𞀭𥠯𞀻`.replace(/u../g,'')))

Oct 10 2022 2:14 PM UTC

}// 140/140

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Infinite Falling Marble #Physics

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u/tomxor

This sh**'s chess, it ain't checkers
u/magna

Crazy!
u/vain

Holy sh*t... 😮 that's incredibly impressive! 👍 Really enjoying watching it. Great work!
u/lonestar108

blows my mind every time
u/neimad

wizardry
u/mrperson59

Delete the last 4 chars in the compressed string and watch the ball wobble around like mad
u/tomxor

Yeah -V/8 is for velocity damping on Y. Which is necessary with velocity based collision resolution. An alternative that doesn't require this is verlet integration, but that requires far more characters.
u/Qwitter

Cool
u/nix

r u effin kiddin me?

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tomxor

remix of d/25758 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𪰽𜰲𞱩𛐭𞱔🐲𚡃𚀶𚡍𨑴𪀮𨑴𨑮𜠨𦀭🐶𝀬𦐭👫𚐭𭰪𠰨𭀯𜠩𚐫𦀪𦀯𭰫𦐪𦐯𭰾𝐩𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙👩𛱷𛀱𛁔𯁒🀰𚐬𨐽𦀭𠐬𨠽𦐭𠠬𤠽𨐪𨐫𨠪𨠭𪰬𥀦𤠼𜀦𙠨𥐭👡𛁖𛐽𨠩𞱁𚰽𥐯𪰬𠠫👖𛱫𛁖𚰽𝰭𥠯𝐻`.replace(/u../g,'')))

Jun 28 2022 9:27 PM UTC

}// 140/140

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Spherical #Laundry #Physics

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u/tomxor

#centrifugal #centripetal #washingmachine
u/Joachim

Awesome
u/vain

Very cool! Amazing work
u/aleamb

wow! amazing!
u/TGY

that would've been amazing website loader XD
u/Odog8

I see stuff like this and wonder why more physics engines don't use raycasting for collision...
u/magna

HOWWWW

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tomxor

remix of d/23413 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𞀻𪐭𛐻𥀽𤰨𦀯𝠩𚱃𚁙𛰽𝠩𚱙🠸𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐫👒𚡡𛁖𚰽𤠪𨠩𞱁𚰽𥐯𭰫𭰬𠐥👷𛁂𚰽𥠯𭰬𥠫🐱𞀭𥠯𜱥𜰻`.replace(/u../g,'')))

Jun 28 2022 8:24 PM UTC

}// 129/140

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Smoler Impossible Marble #Physics

u/tomxor

-11 bytes: Eliminated the intermediate k, moved some coefficients around, and swapped hypot for square values which is actually more stable for intersection resolution. Now it will never stop jiggling :D
u/magna

WOW!
u/pavel

Currently traced pixel is part of the ball and part of the background therefore collision. Awesome trick. My first time seeing this.

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tomxor

remix of d/25338 by u/jdspugh

function u(t) {

for(i=4e4;i--;q>t*i*i%512&&x.fillRect(X+Z<<4,Y+Z<<4,16,16,x.fillStyle=R(q,p>0&&q)))X=i&31,Y=i>>5&31,Z=i>>11,p=S(X/5)*S(Y/5)*S(Z/2),q=p*p*512

Apr 18 2022 2:30 PM UTC

}// 140/140

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Schrödinger Particle Probability - Deterministic Quantum Blasphemy Version :D

u/tomxor

Kinda cheating by not clearing the screen though.
u/cantelope

heretic!
u/donbright

#physics

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pavel

remix of d/23821 by u/pavel

function u(t) {

for(c.width=w=127,i=n=9087;i--;u[i]=420*t>n-i?p&u[r=i+w+i*t%3|0]<1?u[r]++:p:(X-Y/2-30*t-w&Y)<1)x.fillRect(X=i&w,Y=i>>7,.7,p=u[i])

Sep 10 2021 9:36 PM UTC

}// 129/140

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Mr Sierpiński, I don't feel so good

u/Joachim

#sierpinski #particles #physics
u/tomxor

interesting idea (transitioning between imovable and movable).
u/Toby

Very original!
u/rep_movsd

Entropy :(
u/donbright

bravo

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Joachim

function u(t) {

eval(unescape(escape`󮬽󨼮󭽩󩍴󪍼󟝴󟼰󞬨󨬽󮽸󞬹󝬰󛍹󞬵󝌰󯜬󫌽󜌩󒭸󛭦󪝬󫍒󩝣󭌨󨬮󮌬󨬮󮜬󞜹󛌹󞜩󒭸󛭦󪝬󫌨󮌮󨝲󨼨󭌪󞜹󞜫󫌬󝜷󜌫󫌬󜬵󛌰󛌷󚜩󒭩󩬨󭌾󜜩󮽢󛭸󚼽󜜰󛽴󒭬󛜽󜜰󛽴󒭴󟌲󟽢󛭹󚼽󤼨󭌭󜜩󚬹󞬰󯜊󮌮󩭩󫍬󤭥󨽴󚌹󝬰󛌶󜼹󛌹󞜬󜬴󝜩󒭸󛭦󪝬󫍒󩝣󭌨󜌬󞌸󜌬󮬬󞜩`.replace(/u../g,'')))

Aug 27 2021 8:00 AM UTC

}// 140/140

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block #physics

u/vain

wtf? great physic like fx

dwitter.net | #physics