let hec = 5;

let wi;

let he;

let ne = 0;

let nw = 1;

let sw = 2;

let se = 3;

​

function setup() {

  createCanvas(400, 400);

  noLoop();

  background(200);

  stroke(0);

  strokeWeight(1);

  strokeCap(SQUARE);

  noFill();

  wi = width/wic;

  he = height/hec;

  drawboard();

  strokeWeight(10);

  drawlines();

  drawcrosses();

  drawarcs();

  drawwissels();

  drawdwissels();

  drawdwisselsr();

  saveCanvas("myCanvas","jpg");

}

​

let lines = [

    {r:1,c:4,d:0},

    {r:0,c:3,d:1},

    //{r:1,c:2,d:0},

    {r:2,c:1,d:1},

    {r:2,c:3,d:1},

    {r:3,c:0,d:0},

    {r:3,c:2,d:0},

    {r:3,c:4,d:0},

    {r:4,c:1,d:1},

    {r:4,c:3,d:1},

    {r:1,c:1,d:1},

];

let crosses = [

    {r:2,c:2}

]

let arcs = [

    {r:0,c:2,d:se},

    {r:0,c:4,d:sw},

    {r:1,c:0,d:se},

    {r:4,c:0,d:ne},

    {r:4,c:4,d:nw}

]

let wissels = [ // rij,col,wissel ri,vanaf z,w,n,o

    {r:2,c:0,d:1,o:0},

    {r:1,c:2,d:0,o:0}

]

let dwissels = [

    {r:4,c:2,o:2}

]

let dwisselsr = [

    {r:2,c:4,o:1}  

]

​

​

function drawboard() {

    for (let x=0;x<wic+1;x++) {

        line( x*wi,0,x*wi,height );

    }

    for (let y=0;y<hec+1;y++) {

        line( 0,y*he,width,y*he );

    }

}

​

function drawline(r,c,hv) {

    if (hv==0) {

        line( (c+0.5)*wi,r*he,(c+0.5)*wi,(r+1)*he );

    } else {

        line( c*wi,(r+0.5)*he,(c+1)*wi,(r+0.5)*he );

    }

}

​

function drawlines() {

    lines.forEach(l=>drawline(l.r,l.c,l.d));

}

​

function drawcrosses() {

    crosses.forEach(c=>drawcross(c.r,c.c));

}

​

function drawcross(r,c) {

    drawline(r,c,0);

    drawline(r,c,1);

}

​

function drawarcs() {

    arcs.forEach(a=>drawarc(a.r,a.c,a.d));

}

​

function drawarc(r,c,pos) {

    if (pos==se)

     arc( (c+1)*wi,(r+1)*he,wi,he,PI,3*PI/2,OPEN );

    if (pos==nw)

     arc(c*wi, r*he, wi, he, 0, PI/2, OPEN );

     if (pos==sw)

     arc( c*wi, (r+1)*he, wi, he, 3*PI/2, 2*PI, OPEN );

     if (pos==ne)

     arc((c+1)*wi, r*he, wi, he, PI/2, PI, OPEN );

}

​

function drawwissels() {

    wissels.forEach(w=>drawwissel(w.r,w.c,w.d,w.o));

}

​

function drawdwissels() {

    dwissels.forEach(dw=>drawdwissel(dw.r,dw.c,dw.o));

}

​

function drawdwisselsr() {

    dwisselsr.forEach(dwr=>drawdwisselr(dwr.r,dwr.c,dwr.o));

}

​

function drawdwisselr(r,c,o) {

    drawdwissel(r,c,o);

    if (o==0 || o==2) {

        drawline(r,c,1);

    } else {

        drawline(r,c,0);

    }

}

​

function drawwissel(r,c,d,o) {

    if (o==0 || o==2) {

        drawline(r,c,0);

    } else {

        drawline(r,c,1);

    }

    let w = [ [sw,se],[nw,sw],[ne,nw],[se,ne] ][o][d];

    drawarc(r,c,w);

}

​

function drawdwissel(r,c,o) {

    let wl = [sw,nw,ne,se][o];

    let wr = [se,sw,nw,ne][o];

    drawarc(r,c,wl);

    drawarc(r,c,wr);

}

​

​