Dweets awesomed by u/timothytomato

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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katkip

function u(t) {

l=400;L=100;c.width*=1;t||(X=960,Y=540,V=9,v=9);X+=V,Y+=v;x.fillRect(X,Y,l,L);X<0?V=9:0;X>1920-l?V=-9:0;Y<0?v=9:0;Y>1080-L?v=-9:0;

Feb 6 2019 4:22 PM UTC

}// 130/140

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Let's see if an oversize default can perfectly fit the corner! You can change the dimension on the rect by editing l and L! 130bytes, #dvd #meme

u/Undefined

I've been staring at this for 45 minutes now... Send help...

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katkip

remix of d/12164 by u/katkip

function u(t) {

c.width*=1;f=(X,s)=>{if(s>3)x.fillRect(960+S(X)*s,540+C(X)*s,9,9),f(X-0.02*C(t+X*T(X)),s-2)}
f(520+t,500)

Feb 5 2019 8:29 AM UTC

}// 105/140

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Electrical lighting trajectory simulation V2, high frequency current #recursive #recursion

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katkip

function u(t) {

c.width*=1;f=(X,s)=>{if(s>3)x.fillRect(960+S(X)*s,540+C(X)*s,9,9),f(X-0.02*C(t+X*5),s-2)}
f(520+t,500)

Feb 5 2019 8:29 AM UTC

}// 102/140

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Electrical lighting trajectory simulation #recursive #recursion

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katkip

remix of d/12162 by u/katkip

function u(t) {

c.width*=1;f=(X,Y,S)=>{if(S>.3)x.fillRect(X,Y,S-2,70),f(X+S/2,Y-70+C(X/8-t)*20,S/2),f(X,Y-70+C(X/9+t)*20,S/2)}
f(50,960,1760)

Feb 5 2019 8:23 AM UTC

}// 125/140

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Extremely smooth pistons spike-wave #recursion #recursive

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katkip

function u(t) {

c.width*=1;f=(X,Y,S)=>{if(S>2)x.fillRect(X,Y,S-2,90),f(X+S/2,Y-90,S/2),f(X,Y-90+C(t+X+S)*9,S/2)}
f(60,880,1760)

Feb 5 2019 8:16 AM UTC

}// 111/140

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Pistons create smooth waves #recursion #recursive

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katkip

function u(t) {

f=(X,Y,S)=>{if(S>10)x.beginPath(),x.arc(X,Y,S,3.2,6.2),x.stroke(),f(X+S,Y+S/2,S/2),f(X-S,Y+S/2,S/2)}
x.lineWidth=9;f(960,540,450)

Feb 5 2019 8:04 AM UTC

}// 129/140

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#recursive #recursion

u/cantelope

awesome!
u/katkip

thx

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23_Skidoo

remix of d/12118 by u/23_Skidoo

function u(t) {

t/=s=99
for(i=2e3;i--;x.fillStyle=R(s+T(i-t*s)*s,s+S(t+i)*s,s+S(i*9.1+t)*30,.06))x.fillRect(1E3*(C(t*9+i*3)+.94),625*(C(t*7-i*8.4)+.8),19,s)

Feb 3 2019 3:59 AM UTC

}// 140/140

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u/DataMeta

Nice style! #kaleidoscope

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katkip

function u(t) {

r=Math.random;t||(v=0,V=0,X=960,Y=540);x.fillRect(X,Y,9,9);X+=V+=r()-.5;Y+=v+=r()-.5
X>1920?X=0:0
Y>1080?Y=0:0
X<0?X=1920:0
Y<0?Y=1080:0

Feb 2 2019 4:42 PM UTC

}// 136/140

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Dweety the infinite ant #velocity #ai

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katkip

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭦潲⡩㴹㤹㭩ⴭ㬩砮晩汬剥捴⠹㘰⭃⡩⨳⸱㐱㘫匨椫琩⨱⸴⤪㜰〬㔴〫匨椪䌨椫琩⽩⩓⡴⭩⨴⤩⨵〰ⰵⰵ⤻景爨樽㈰㭪ⴭ㬩砮晩汬剥捴⠹㈰⭓⡪⩪⨹⭴⨹⤪㌰ⰹ㘫横㐴⭓⡪⩪⭴⤪ㄲⰹ〬㈰⤻`.replace(/u(..)/g,"$1%")))

Feb 2 2019 4:22 PM UTC

}// 136/140

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#default's friction causes heat radiation! #compressed. Code: c.width*=1;for(i=999;i--;)x.fillRect(960+C(i*3.1416+S(i+t)*1.4)*700,540+S(i*C(i+t)/i*S(t+i*4))*500,5,5);for(j=20;j--;)x.fillRect(920+S(j*j*9+t*9)*30,96+j*44+S(j*j+t)*12,90,20);

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Kyoushu

function u(t) {

x.clearRect(0,0,1920,1080);for(i=0;i<=800;i+=0.9){b=t+i*C(t/100);x.fillRect(S(b)*(960-i)+960,C(b)*(540-i)+540,10,10);}

Feb 1 2019 10:53 AM UTC

}// 118/140

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If you play with variables long enough, something cool will probably happen

u/katkip

True

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