Dwitter - javascript demos in 140 characters

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: #Food

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retera

remix of d/4342 by u/retera

function u(t) {

c.width=w=2e3
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q+40);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),60,0,6.283,!1);x.fill()}

Dec 28 2017 9:46 PM UTC

}// 140/140

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danr

remix of d/4136 by u/Exca

function u(t) {

for(i=0;i<1100;i++){d=C(t+1*i),s=i==0?2920:9-d*49;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+3*i)*220*S(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 28 2017 2:53 AM UTC

}// 140/140

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u/joeytwiddle

#ghostly #twister #dna

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TylerCross

function u(t) {

c.width|=0
  for(i=0;i<192;i++)
for(y=1;y<11;y++)
  x.fillRect(i*9,100+y*y*10.5+(C(i*0.5/y-t*2+y)+S(t-(y*y)/15))*y*10, 5, 5)

Dec 29 2017 4:46 PM UTC

}// 125/140

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u/joeytwiddle

Nice. Even the waves are waving.
u/TylerCross

thx :) this is a really fun game. Anyone got an idea to not display rectangles that should be hidden behind frontground waves ?

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mattdzugan

function u(t) {

c.width|=0;for(i=0;i<157;i++){n=t/50+i/150;x.fillStyle=R(0,99,240,.5+i/400);x.fillRect(960+300*C(24*n),540+300*C(18*n+.4),6+i/8,6+i/8);}

Dec 28 2017 9:19 PM UTC

}// 136/140

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SkyLett

function u(t) {

α=200;c.width=α*2;τ=Math.PI*2;x.font="36px A";x.fillText(['🌚','🌒','🌓','🌔','fuck yeah','🌖','🌗','🌘'][(t|0)%8],α+C(t)*70,50+70+S(t)*70);

Dec 30 2017 4:39 PM UTC

}// 133/140

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u/skeletonNatte

fuck yeah

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Thotht

function u(t) {

h=500;for(i=0;i<t;i++){for(j=0;j<h;j+=10){
  x.fillRect(1920-i*20,h+C(i)*j,10,10);x.fillRect(i*20,h+C(i-4)*j,10,10)}}

Dec 31 2017 4:24 PM UTC

}// 117/140

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@.+

remix of d/4342 by u/retera

function u(t) {

c.width=w=2e3
v=t+400
for(q=255;q--;){x.fillStyle=R(250-q,q,q);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283);x.fill()}

Dec 28 2017 4:18 PM UTC

}// 138/140

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Axioplase

function u(t) {

c.width=w=1920;for(i=w;i>0;i--)f=(960*(1+S(i/9))),x.fillStyle=R(f/5,255-f/4,(255-f)/9),x.fillRect(i,540+200*S(9*t+i/20)*C(t+S(i/300)),20,20)

Dec 29 2017 3:58 PM UTC

}// 140/140

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retera

remix of d/4328 by u/retera

function u(t) {

c.width|=0;
for(r=0;r++<10;){s=480+C(r)*r*5;for(q=0;q++<8;){for(j=0;j++<9;){a=q/t+t/r;x.fillRect(C(a)*s*S(j+t)+960,S(a)*s*C(j-t)+540,8,8)}}}

Dec 28 2017 8:00 AM UTC

}// 140/140

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u/Purpzie

119 characters: for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

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Simonster

remix of d/4845 by u/Simonster

function u(t) {

z=300
c.width=z*4
j=Math.ceil(t)+1
x.translate(z*2,z+70)
x.rotate(t*2.4)
for(i=z*3;i--;)a=C(j*i)*z,x.fillRect(T(i)*a,C(i)*a,5,5)

Dec 30 2017 3:40 PM UTC

}// 128/140

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