Doolhof maken | Gratis online doolhof maker

1 Titel

Titel op het werkblad

2 Vorm

3 Stijl

4 Grootte

5 Gangbreedte

Gangbreedte bepaalt hoeveel gangen binnen de gekozen vorm passen. Grootte bepaalt alleen hoe groot het doolhof op het werkblad staat.

6 Moeilijkheid

7 Werkblad

Naam Groep Datum Antwoordblad

Doolhof wordt gemaaktDe unieke route en moeilijkheid worden gecontroleerd.

Doolhof wordt gemaaktDe preview verschijnt automatisch.

(function(global){
'use strict';
const DIRS=[[-1,0],[0,1],[1,0],[0,-1]],OPP=[2,3,0,1];
const GLYPHS={
A:[".###.","#...#","#...#","#####","#...#","#...#","#...#"],B:["####.","#...#","#...#","####.","#...#","#...#","####."],C:[".####","#....","#....","#....","#....","#....",".####"],D:["####.","#...#","#...#","#...#","#...#","#...#","####."],E:["#####","#....","#....","####.","#....","#....","#####"],F:["#####","#....","#....","####.","#....","#....","#...."],G:[".####","#....","#....","#.###","#...#","#...#",".###."],H:["#...#","#...#","#...#","#####","#...#","#...#","#...#"],I:["#####","..#..","..#..","..#..","..#..","..#..","#####"],J:["..###","...#.","...#.","...#.","...#.","#..#.",".##.."],K:["#...#","#..#.","#.#..","##...","#.#..","#..#.","#...#"],L:["#....","#....","#....","#....","#....","#....","#####"],M:["#...#","##.##","#.#.#","#...#","#...#","#...#","#...#"],N:["#...#","##..#","#.#.#","#..##","#...#","#...#","#...#"],O:[".###.","#...#","#...#","#...#","#...#","#...#",".###."],P:["####.","#...#","#...#","####.","#....","#....","#...."],Q:[".###.","#...#","#...#","#...#","#.#.#","#..#.",".##.#"],R:["####.","#...#","#...#","####.","#.#..","#..#.","#...#"],S:[".####","#....","#....",".###.","....#","....#","####."],T:["#####","..#..","..#..","..#..","..#..","..#..","..#.."],U:["#...#","#...#","#...#","#...#","#...#","#...#",".###."],V:["#...#","#...#","#...#","#...#","#...#",".#.#.","..#.."],W:["#...#","#...#","#...#","#...#","#.#.#","##.##","#...#"],X:["#...#",".#.#.","..#..","..#..","..#..",".#.#.","#...#"],Y:["#...#",".#.#.","..#..","..#..","..#..","..#..","..#.."],Z:["#####","....#","...#.","..#..",".#...","#....","#####"],
"0":[".###.","#...#","#..##","#.#.#","##..#","#...#",".###."],"1":["..#..",".##..","..#..","..#..","..#..","..#..",".###."],"2":[".###.","#...#","....#","...#.","..#..",".#...","#####"],"3":["####.","....#","....#",".###.","....#","....#","####."],"4":["#...#","#...#","#...#","#####","....#","....#","....#"],"5":["#####","#....","#....","####.","....#","....#","####."],"6":[".###.","#....","#....","####.","#...#","#...#",".###."],"7":["#####","....#","...#.","..#..",".#...",".#...",".#..."],"8":[".###.","#...#","#...#",".###.","#...#","#...#",".###."],"9":[".###.","#...#","#...#",".####","....#","....#",".###."]};
function hashSeed(seed){let x=Number(seed);if(!Number.isFinite(x)){x=2166136261;for(const ch of String(seed)){x^=ch.charCodeAt(0);x=Math.imul(x,16777619)}}return (x>>>0)||0x9e3779b9}
function createRng(seed){let a=hashSeed(seed);return function(){a|=0;a=(a+0x6D2B79F5)|0;let t=Math.imul(a^(a>>>15),1|a);t=(t+Math.imul(t^(t>>>7),61|t))^t;return ((t^(t>>>14))>>>0)/4294967296}}
function ri(rng,n){return Math.floor(rng()*n)}function shuffle(a,rng){a=a.slice();for(let i=a.length-1;i>0;i--){const j=ri(rng,i+1);[a[i],a[j]]=[a[j],a[i]]}return a}
function id(r,c,cols){return r*cols+c}function rc(i,cols){return [Math.floor(i/cols),i%cols]}function inb(r,c,rows,cols){return r>=0&&c>=0&&r<rows&&c<cols}
function countMask(active){let n=0;for(const x of active)n+=x?1:0;return n}
function maskComponents(rows,cols,active){const seen=new Uint8Array(active.length),comps=[];for(let s=0;s<active.length;s++){if(!active[s]||seen[s])continue;const q=[s],comp=[];seen[s]=1;for(let h=0;h<q.length;h++){const a=q[h];comp.push(a);const [r,c]=rc(a,cols);for(const [dr,dc] of DIRS){const nr=r+dr,nc=c+dc;if(!inb(nr,nc,rows,cols))continue;const b=id(nr,nc,cols);if(active[b]&&!seen[b]){seen[b]=1;q.push(b)}}}comps.push(comp)}return comps}
function connectMask(rows,cols,active){active=new Uint8Array(active);for(let guard=0;guard<20;guard++){const comps=maskComponents(rows,cols,active);if(comps.length<=1)return active;comps.sort((a,b)=>b.length-a.length);const A=comps[0];let best=null;for(let k=1;k<comps.length;k++){const B=comps[k];for(const a of A){const [ar,ac]=rc(a,cols);for(const b of B){const [br,bc]=rc(b,cols),d=Math.abs(ar-br)+Math.abs(ac-bc);if(!best||d<best.d)best={a,b,d};if(d<=2)break}if(best&&best.d<=2)break}if(best&&best.d<=2)break}if(!best)break;let [r,c]=rc(best.a,cols),[tr,tc]=rc(best.b,cols);while(c!==tc){c+=c<tc?1:-1;active[id(r,c,cols)]=1}while(r!==tr){r+=r<tr?1:-1;active[id(r,c,cols)]=1}}return active}
const FIGURE_POLYGONS={star:[[0.0000,0.9400],[-0.2527,0.3479],[-0.8940,0.2905],[-0.4090,-0.1329],[-0.5525,-0.7605],[-0.0000,-0.4300],[0.5525,-0.7605],[0.4090,-0.1329],[0.8940,0.2905],[0.2527,0.3479]],lightning:[[-0.1200,0.9500],[0.5800,0.9500],[0.1800,0.2000],[0.6300,0.2000],[-0.4200,-0.9600],[-0.1200,-0.1800],[-0.5600,-0.1800]],shield:[[-0.7800,0.7200],[0.0000,0.9400],[0.7800,0.7200],[0.6800,-0.2000],[0.0000,-0.9400],[-0.6800,-0.2000]],crown:[[-0.9200,-0.6600],[-0.8000,0.5500],[-0.3800,0.0800],[-0.1000,0.8200],[0.1800,0.0800],[0.5600,0.6400],[0.8200,0.1200],[0.9200,-0.6600]],rocket:[[0.0000,0.9800],[0.4200,0.4600],[0.4200,-0.2800],[0.7800,-0.7800],[0.3000,-0.6600],[0.0000,-0.9600],[-0.3000,-0.6600],[-0.7800,-0.7800],[-0.4200,-0.2800],[-0.4200,0.4600]],tree:[[0.0000,0.9800],[-0.7800,0.1800],[-0.3500,0.1800],[-0.8600,-0.4000],[-0.2800,-0.4000],[-0.2800,-0.9400],[0.2800,-0.9400],[0.2800,-0.4000],[0.8600,-0.4000],[0.3500,0.1800],[0.7800,0.1800]],house:[[-0.8800,-0.8600],[-0.8800,0.0800],[0.0000,0.9200],[0.8800,0.0800],[0.8800,-0.8600]],pencil:[[-0.9400,-0.2800],[0.4200,0.8200],[0.8600,0.3800],[-0.5000,-0.7200],[-0.9200,-0.8800]],drop:[[0.0000,0.9800],[-0.6800,0.1200],[-0.6200,-0.4000],[0.0000,-0.9000],[0.6200,-0.4000],[0.6800,0.1200]]};
function pointInPoly(x,y,pts){let inside=false;for(let i=0,j=pts.length-1;i<pts.length;j=i++){const xi=pts[i][0],yi=pts[i][1],xj=pts[j][0],yj=pts[j][1];if(((yi>y)!==(yj>y))&&(x<(xj-xi)*(y-yi)/(yj-yi||1e-12)+xi))inside=!inside}return inside}
function ellipse(x,y,cx,cy,rx,ry){const dx=(x-cx)/rx,dy=(y-cy)/ry;return dx*dx+dy*dy<=1}
function figureInside(name,x,y){const r=Math.hypot(x,y),a=Math.atan2(y,x);if(FIGURE_POLYGONS[name])return pointInPoly(x,y,FIGURE_POLYGONS[name]);switch(name){
case'heart':{const X=x*1.12,Y=(y+.12)*1.05,v=X*X+Y*Y-1;return v*v*v-X*X*Y*Y*Y<=0}
case'moon':return r<=.92&&!ellipse(x,y,.34,.18,.68,.76);
case'cloud':return ellipse(x,y,-.48,.02,.46,.42)||ellipse(x,y,-.06,.30,.50,.50)||ellipse(x,y,.45,.08,.45,.40)||(x>- .78&&x<.78&&y>-.48&&y<.18);
case'sun':return r<=.56||(r<=.91&&Math.cos(8*a)>.48);
case'mushroom':return (ellipse(x,y,0,.30,.88,.56)&&y>-.02)||(Math.abs(x)<.30&&y<.22&&y>-.88);
case'apple':return ellipse(x,y,-.25,.02,.58,.72)||ellipse(x,y,.25,.02,.58,.72)||(Math.abs(x)<.13&&y>.62&&y<.94);
case'flower':{if(r<=.34)return true;for(let k=0;k<6;k++){const t=k*Math.PI/3,cx=.48*Math.cos(t),cy=.48*Math.sin(t);if(ellipse(x,y,cx,cy,.34,.28))return true}return false}
case'butterfly':return ellipse(x,y,-.45,.33,.43,.48)||ellipse(x,y,.45,.33,.43,.48)||ellipse(x,y,-.42,-.34,.38,.36)||ellipse(x,y,.42,-.34,.38,.36)||(Math.abs(x)<.14&&Math.abs(y)<.78);
case'fish':return ellipse(x,y,-.10,0,.72,.55)||pointInPoly(x,y,[[.48,0],[.94,.62],[.94,-.62]]);
case'turtle':return ellipse(x,y,-.08,0,.68,.52)||ellipse(x,y,.70,.02,.27,.25)||ellipse(x,y,-.52,.48,.22,.18)||ellipse(x,y,.35,.45,.20,.17)||ellipse(x,y,-.52,-.48,.22,.18)||ellipse(x,y,.35,-.45,.20,.17);
case'snail':return ellipse(x,y,-.35,.20,.52,.52)||ellipse(x,y,.22,-.24,.70,.25)||ellipse(x,y,.54,.02,.24,.42);
case'cat':return ellipse(x,y,0,-.05,.74,.70)||pointInPoly(x,y,[[-.70,.42],[-.62,.96],[-.18,.63]])||pointInPoly(x,y,[[.70,.42],[.62,.96],[.18,.63]]);
case'rabbit':return ellipse(x,y,0,-.28,.65,.58)||ellipse(x,y,-.30,.52,.24,.54)||ellipse(x,y,.30,.52,.24,.54);
case'gift':return (Math.abs(x)<.78&&y<.52&&y>-.88)||ellipse(x,y,-.22,.62,.27,.22)||ellipse(x,y,.22,.62,.27,.22);
case'puzzle':return (Math.abs(x)<.72&&Math.abs(y)<.72)||ellipse(x,y,0,.72,.25,.28)||ellipse(x,y,.72,-.10,.28,.25);
case'leaf':{const X=(x+y)*.72,Y=(y-x)*.72;return ellipse(X,Y,0,0,.48,.96)}
case'ghost':return ellipse(x,y,0,.22,.72,.72)||(Math.abs(x)<.72&&y<.25&&y>-.72)||(y<-.60&&((x<-.35)||Math.abs(x)<.14||x>.35));
case'pumpkin':return ellipse(x,y,0,-.08,.88,.68)||(Math.abs(x)<.14&&y>.50&&y<.92);
default:return r<=.85}}
function figureMask(name,density){const n=density==='wide'?15:density==='narrow'?29:21,rows=n,cols=n,active=new Uint8Array(rows*cols);for(let r=0;r<rows;r++)for(let c=0;c<cols;c++){const x=((c+.5)/cols)*2-1,y=1-((r+.5)/rows)*2;if(figureInside(name,x,y))active[id(r,c,cols)]=1}return {rows,cols,active:connectMask(rows,cols,active)}}
function glyphMask(ch,density){const pat=GLYPHS[ch]||GLYPHS.A,scale=density==='wide'?2:density==='narrow'?4:3,rows=7*scale,cols=5*scale,active=new Uint8Array(rows*cols);for(let pr=0;pr<7;pr++)for(let pc=0;pc<5;pc++)if(pat[pr][pc]==='#')for(let rr=0;rr<scale;rr++)for(let cc=0;cc<scale;cc++)active[id(pr*scale+rr,pc*scale+cc,cols)]=1;return {rows,cols,active:connectMask(rows,cols,active)}}
function makeTopology(shape,density,glyph,figure){let rows,cols,active;if(shape==='letter'||shape==='digit'){const g=glyphMask(glyph,density);rows=g.rows;cols=g.cols;active=g.active}else if(shape==='figure'){const g=figureMask(figure||'star',density);rows=g.rows;cols=g.cols;active=g.active}else{const maps={square:{wide:[9,9],regular:[14,14],narrow:[20,20]},portrait:{wide:[12,8],regular:[18,12],narrow:[24,16]},landscape:{wide:[8,12],regular:[12,18],narrow:[16,24]},diagonal:{wide:[9,9],regular:[14,14],narrow:[20,20]},round:{wide:[13,13],regular:[19,19],narrow:[25,25]}};[rows,cols]=(maps[shape]||maps.square)[density]||maps.square.regular;active=new Uint8Array(rows*cols);if(shape==='round'){const cy=(rows-1)/2,cx=(cols-1)/2,ry=rows/2-.55,rx=cols/2-.55;for(let r=0;r<rows;r++)for(let c=0;c<cols;c++){const y=(r-cy)/ry,x=(c-cx)/rx;if(x*x+y*y<=1)active[id(r,c,cols)]=1}}else active.fill(1)}active=connectMask(rows,cols,active);const topo={shape,density,glyph:glyph||'',figure:figure||'',rows,cols,active,count:countMask(active)};if(topo.count<12)throw new Error('TOPOLOGY_TOO_SMALL');return topo}
function neighborsTopo(i,topo){const [r,c]=rc(i,topo.cols),out=[];for(let d=0;d<4;d++){const nr=r+DIRS[d][0],nc=c+DIRS[d][1];if(inb(nr,nc,topo.rows,topo.cols)){const j=id(nr,nc,topo.cols);if(topo.active[j])out.push([j,d])}}return out}
function addEdge(adj,a,b,d){adj[a]|=1<<d;adj[b]|=1<<OPP[d]}function hasEdge(adj,a,d){return !!(adj[a]&(1<<d))}
function activeList(topo){const a=[];for(let i=0;i<topo.active.length;i++)if(topo.active[i])a.push(i);return a}
function generateDFS(topo,rng){const adj=new Uint8Array(topo.active.length),act=activeList(topo),vis=new Uint8Array(topo.active.length),stack=[act[ri(rng,act.length)]];vis[stack[0]]=1;while(stack.length){const cur=stack[stack.length-1],opts=shuffle(neighborsTopo(cur,topo).filter(([j])=>!vis[j]),rng);if(!opts.length){stack.pop();continue}const [j,d]=opts[0];addEdge(adj,cur,j,d);vis[j]=1;stack.push(j)}return adj}
function generatePrim(topo,rng){const adj=new Uint8Array(topo.active.length),act=activeList(topo),vis=new Uint8Array(topo.active.length),front=[],start=act[ri(rng,act.length)];vis[start]=1;for(const [j,d] of neighborsTopo(start,topo))front.push([start,j,d]);while(front.length){const k=ri(rng,front.length),[a,b,d]=front[k];front[k]=front[front.length-1];front.pop();if(vis[b])continue;addEdge(adj,a,b,d);vis[b]=1;for(const [j,dd] of neighborsTopo(b,topo))if(!vis[j])front.push([b,j,dd])}return adj}
function generateKruskal(topo,rng){const adj=new Uint8Array(topo.active.length),parent=Int32Array.from({length:topo.active.length},(_,i)=>i),rank=new Uint8Array(topo.active.length);const find=x=>{while(parent[x]!==x){parent[x]=parent[parent[x]];x=parent[x]}return x},union=(a,b)=>{a=find(a);b=find(b);if(a===b)return false;if(rank[a]<rank[b])[a,b]=[b,a];parent[b]=a;if(rank[a]===rank[b])rank[a]++;return true};let edges=[];for(const a of activeList(topo)){const [r,c]=rc(a,topo.cols);if(c+1<topo.cols){const b=id(r,c+1,topo.cols);if(topo.active[b])edges.push([a,b,1])}if(r+1<topo.rows){const b=id(r+1,c,topo.cols);if(topo.active[b])edges.push([a,b,2])}}edges=shuffle(edges,rng);for(const [a,b,d] of edges)if(union(a,b))addEdge(adj,a,b,d);return adj}
function exteriorMask(topo){const ext=new Uint8Array(topo.active.length),q=[];for(let r=0;r<topo.rows;r++)for(let c=0;c<topo.cols;c++){if(r!==0&&c!==0&&r!==topo.rows-1&&c!==topo.cols-1)continue;const i=id(r,c,topo.cols);if(!topo.active[i]&&!ext[i]){ext[i]=1;q.push(i)}}for(let h=0;h<q.length;h++){const a=q[h],[r,c]=rc(a,topo.cols);for(const [dr,dc] of DIRS){const nr=r+dr,nc=c+dc;if(inb(nr,nc,topo.rows,topo.cols)){const b=id(nr,nc,topo.cols);if(!topo.active[b]&&!ext[b]){ext[b]=1;q.push(b)}}}}return ext}
function openingSides(i,topo,ext){const [r,c]=rc(i,topo.cols),out=[];for(let d=0;d<4;d++){const nr=r+DIRS[d][0],nc=c+DIRS[d][1];if(!inb(nr,nc,topo.rows,topo.cols)){out.push(d);continue}const j=id(nr,nc,topo.cols);if(!topo.active[j]&&ext[j])out.push(d)}return out}
function bfs(adj,topo,start){const dist=new Int32Array(topo.active.length);dist.fill(-1);const par=new Int32Array(topo.active.length);par.fill(-1);const q=new Int32Array(topo.active.length);let h=0,t=0;q[t++]=start;dist[start]=0;while(h<t){const a=q[h++],[r,c]=rc(a,topo.cols);for(let d=0;d<4;d++)if(hasEdge(adj,a,d)){const nr=r+DIRS[d][0],nc=c+DIRS[d][1];if(!inb(nr,nc,topo.rows,topo.cols))continue;const b=id(nr,nc,topo.cols);if(topo.active[b]&&dist[b]<0){dist[b]=dist[a]+1;par[b]=a;q[t++]=b}}}return {dist,par}}
function chooseSide(i,sides,topo){if(sides.length===1)return sides[0];const [r,c]=rc(i,topo.cols),cy=(topo.rows-1)/2,cx=(topo.cols-1)/2,vy=r-cy,vx=c-cx;let best=sides[0],bestDot=-Infinity;for(const d of sides){const [dy,dx]=DIRS[d],dot=dx*vx+dy*vy;if(dot>bestDot){bestDot=dot;best=d}}return best}
function chooseEndpoints(adj,topo,rng){const ext=exteriorMask(topo),boundary=[];let minR=Infinity,maxR=-Infinity,minC=Infinity,maxC=-Infinity;for(const i of activeList(topo)){const [r,c]=rc(i,topo.cols);minR=Math.min(minR,r);maxR=Math.max(maxR,r);minC=Math.min(minC,c);maxC=Math.max(maxC,c)}for(const i of activeList(topo)){const [r,c]=rc(i,topo.cols),sides=openingSides(i,topo,ext);if(sides.length)boundary.push({i,sides})}if(boundary.length<2)throw new Error('NO_BOUNDARY_ENDPOINTS');const envelope=boundary.map(x=>({i:x.i,sides:x.sides.filter(d=>{const [r,c]=rc(x.i,topo.cols);return d===0?r===minR:d===2?r===maxR:d===3?c===minC:c===maxC})})).filter(x=>x.sides.length);const poolBoundary=envelope.length>=2?envelope:boundary;let a=poolBoundary[ri(rng,poolBoundary.length)].i;for(let sweep=0;sweep<2;sweep++){const {dist}=bfs(adj,topo,a),sorted=poolBoundary.filter(x=>dist[x.i]>=0&&x.i!==a).sort((x,y)=>dist[y.i]-dist[x.i]);if(!sorted.length)throw new Error('NO_ENDPOINT_PAIR');const pool=sorted.slice(0,Math.max(1,Math.ceil(sorted.length*.12)));a=pool[ri(rng,pool.length)].i}const start=a,{dist}=bfs(adj,topo,start),sorted=poolBoundary.filter(x=>x.i!==start&&dist[x.i]>=0).sort((x,y)=>dist[y.i]-dist[x.i]),pool=sorted.slice(0,Math.max(1,Math.ceil(sorted.length*.15))),endObj=pool[ri(rng,pool.length)],end=endObj.i,startObj=poolBoundary.find(x=>x.i===start);return {start,end,startSide:chooseSide(start,startObj.sides,topo),endSide:chooseSide(end,endObj.sides,topo)}}
function route(adj,topo,start,end){const {par,dist}=bfs(adj,topo,start);if(dist[end]<0)return null;const p=[];for(let x=end;x!==-1;x=par[x]){p.push(x);if(x===start)break}p.reverse();return p[0]===start?p:null}
function branchDepth(adj,topo,pathSet,from,parent){let max=0,stack=[[from,parent,1]];while(stack.length){const [a,p,dep]=stack.pop();max=Math.max(max,dep);const [r,c]=rc(a,topo.cols);for(let d=0;d<4;d++)if(hasEdge(adj,a,d)){const nr=r+DIRS[d][0],nc=c+DIRS[d][1],b=id(nr,nc,topo.cols);if(b!==p&&!pathSet.has(b))stack.push([b,a,dep+1])}}return max}
function metrics(adj,topo,start,end,path){const V=topo.count,pathSet=new Set(path);let decisions=0,branches=0,depthSum=0,maxDepth=0,turns=0,prevDir=-1;for(let k=0;k<path.length;k++){const a=path[k],prev=k?path[k-1]:-1,next=k+1<path.length?path[k+1]:-1,[r,c]=rc(a,topo.cols);for(let d=0;d<4;d++)if(hasEdge(adj,a,d)){const b=id(r+DIRS[d][0],c+DIRS[d][1],topo.cols);if(b!==prev&&b!==next&&!pathSet.has(b)){decisions++;branches++;const bd=branchDepth(adj,topo,pathSet,b,a);depthSum+=bd;maxDepth=Math.max(maxDepth,bd)}}if(k+1<path.length){const [r2,c2]=rc(path[k+1],topo.cols),d=r2>r?2:r2<r?0:c2>c?1:3;if(prevDir>=0&&d!==prevDir)turns++;prevDir=d}}const [sr,sc]=rc(start,topo.cols),[er,ec]=rc(end,topo.cols),euclid=Math.hypot(sr-er,sc-ec),routeRatio=(path.length-1)/Math.max(1,V-1),decisionRate=decisions/Math.max(1,path.length-2),avgDepth=branches?depthSum/branches:0,turnRate=turns/Math.max(1,path.length-2),deception=(path.length-1)/Math.max(1,euclid),scale=Math.sqrt(V);const score=100*(.30*Math.min(1,routeRatio*2.1)+.25*Math.min(1,decisionRate*1.9)+.20*Math.min(1,avgDepth/(scale*1.45))+.15*Math.min(1,turnRate*1.35)+.10*Math.min(1,(deception-1)/4));return {score:+score.toFixed(2),pathLength:path.length-1,routeRatio,decisions,avgBranchDepth:+avgDepth.toFixed(2),maxBranchDepth:maxDepth,turns,deception:+deception.toFixed(2)}}
function validateTopology(topo){if(!topo||topo.count<1)return {valid:false,reason:'empty'};const comps=maskComponents(topo.rows,topo.cols,topo.active);return comps.length===1&&comps[0].length===topo.count?{valid:true}:{valid:false,reason:'mask_disconnected'}}
function validateGraph(result){const {topo,adj,start,end,path}=result,vt=validateTopology(topo);if(!vt.valid)return vt;let edges=0;for(const a of activeList(topo)){const [r,c]=rc(a,topo.cols);for(let d=0;d<4;d++)if(hasEdge(adj,a,d)){const nr=r+DIRS[d][0],nc=c+DIRS[d][1];if(!inb(nr,nc,topo.rows,topo.cols))return {valid:false,reason:'edge_outside'};const b=id(nr,nc,topo.cols);if(!topo.active[b]||!hasEdge(adj,b,OPP[d]))return {valid:false,reason:'edge_invalid'};if(a<b)edges++}}if(edges!==topo.count-1)return {valid:false,reason:'not_tree_edges'};const {dist}=bfs(adj,topo,start);let seen=0;for(const i of activeList(topo))if(dist[i]>=0)seen++;if(seen!==topo.count||dist[end]<0)return {valid:false,reason:'not_connected'};const p=route(adj,topo,start,end);if(!p||!path||p.length!==path.length||p.some((v,i)=>v!==path[i]))return {valid:false,reason:'path_mismatch'};const ext=exteriorMask(topo);if(!openingSides(start,topo,ext).includes(result.startSide)||!openingSides(end,topo,ext).includes(result.endSide))return {valid:false,reason:'bad_opening'};return {valid:true,edges,vertices:topo.count}}
function independentValidate(result){const {topo,adj}=result,graph=new Map();for(const a of activeList(topo)){const ns=[],[r,c]=rc(a,topo.cols);for(let d=0;d<4;d++)if((adj[a]&(1<<d))!==0){const nr=r+DIRS[d][0],nc=c+DIRS[d][1];if(!inb(nr,nc,topo.rows,topo.cols))return {valid:false,reason:'outside'};const b=id(nr,nc,topo.cols);if(!topo.active[b])return {valid:false,reason:'inactive'};ns.push(b)}graph.set(a,ns)}const seen=new Set(),parent=new Map(),stack=[result.start];parent.set(result.start,-1);let cycle=false;while(stack.length){const a=stack.pop();if(seen.has(a))continue;seen.add(a);for(const b of graph.get(a)||[]){if(!seen.has(b)){if(!parent.has(b))parent.set(b,a);stack.push(b)}else if(parent.get(a)!==b)cycle=true}}if(seen.size!==topo.count||cycle)return {valid:false,reason:cycle?'cycle':'disconnected'};const q=[result.start],par=new Map([[result.start,-1]]);for(let h=0;h<q.length;h++){const a=q[h];for(const b of graph.get(a)||[])if(!par.has(b)){par.set(b,a);q.push(b)}}if(!par.has(result.end))return {valid:false,reason:'no_route'};const p=[];for(let x=result.end;x!==-1;x=par.get(x)){p.push(x);if(x===result.start)break}p.reverse();if(p.length!==result.path.length||p.some((v,i)=>v!==result.path[i]))return {valid:false,reason:'different_route'};return {valid:true,path:p}}
function generateCandidate(topo,seed,algo){const rng=createRng(seed),adj=algo===0?generateDFS(topo,rng):algo===1?generatePrim(topo,rng):generateKruskal(topo,rng),ep=chooseEndpoints(adj,topo,rng),path=route(adj,topo,ep.start,ep.end),m=metrics(adj,topo,ep.start,ep.end,path),out={topo,adj,start:ep.start,end:ep.end,startSide:ep.startSide,endSide:ep.endSide,path,metrics:m,seed:hashSeed(seed),algorithm:['dfs','prim','kruskal'][algo]};const a=validateGraph(out),b=independentValidate(out);if(!a.valid||!b.valid)throw new Error('INVALID_GENERATED_'+(a.reason||b.reason));return out}
function generateMaze(opts){opts=opts||{};const shape=opts.shape||'square',density=opts.density||'regular',difficulty=opts.difficulty||'normal',glyph=opts.glyph||'A',figure=opts.figure||'star',topo=makeTopology(shape,density,glyph,figure),seed=hashSeed(opts.seed==null?Date.now():opts.seed),count=Math.max(15,Number(opts.candidates)||30),arr=[];for(let i=0;i<count;i++){const s=(seed+Math.imul(i+1,0x9e3779b1))>>>0;arr.push(generateCandidate(topo,s,i%3))}arr.sort((a,b)=>a.metrics.score-b.metrics.score);const q=difficulty==='easy'?.14:difficulty==='hard'?.88:.51,idx=Math.max(0,Math.min(arr.length-1,Math.round((arr.length-1)*q))),chosen=arr[idx];chosen.requestedDifficulty=difficulty;chosen.difficultyPercentile=arr.length>1?idx/(arr.length-1):0;chosen.measuredDifficulty=chosen.difficultyPercentile<.33?'easy':chosen.difficultyPercentile<.70?'normal':'hard';chosen.scoreRange=[arr[0].metrics.score,arr[arr.length-1].metrics.score];chosen.shape=shape;chosen.densityKey=density;chosen.glyph=glyph;chosen.figure=figure;return chosen}
function wallSegments(result){const {topo,adj}=result,out=[];for(const a of activeList(topo)){const [r,c]=rc(a,topo.cols);for(let d=0;d<4;d++){if(hasEdge(adj,a,d))continue;const nr=r+DIRS[d][0],nc=c+DIRS[d][1],inside=inb(nr,nc,topo.rows,topo.cols),b=inside?id(nr,nc,topo.cols):-1,neighborActive=inside&&topo.active[b];if(neighborActive&&a>b)continue;if((a===result.start&&d===result.startSide)||(a===result.end&&d===result.endSide))continue;let p1,p2;if(d===0){p1=[c,r];p2=[c+1,r]}else if(d===1){p1=[c+1,r];p2=[c+1,r+1]}else if(d===2){p1=[c,r+1];p2=[c+1,r+1]}else{p1=[c,r];p2=[c,r+1]}const k1=p1[0]+','+p1[1],k2=p2[0]+','+p2[1];out.push({a:p1,b:p2,key1:k1,key2:k2})}}return out}
function openingPoint(result,which){const i=which==='start'?result.start:result.end,d=which==='start'?result.startSide:result.endSide,[r,c]=rc(i,result.topo.cols);return d===0?[c+.5,r]:d===1?[c+1,r+.5]:d===2?[c+.5,r+1]:[c,r+.5]}
function outsidePoint(result,which,amount=.55){const p=openingPoint(result,which),d=which==='start'?result.startSide:result.endSide;return [p[0]+DIRS[d][1]*amount,p[1]+DIRS[d][0]*amount]}
function pathCenters(result){return result.path.map(i=>{const [r,c]=rc(i,result.topo.cols);return [c+.5,r+.5]})}
global.KlasklaarMazeEngine={DIRS,OPP,GLYPHS,hashSeed,createRng,makeTopology,figureMask,generateMaze,validateGraph,independentValidate,wallSegments,openingPoint,outsidePoint,pathCenters,rc,activeList,maskComponents};
})(typeof window!=='undefined'?window:globalThis);
(function(){
'use strict';
const root=document.getElementById('kkmz-maze-root');if(!root||root.dataset.kkmzInitialized==='1')return;root.dataset.kkmzInitialized='1';
const E=window.KlasklaarMazeEngine;if(!E)throw new Error('MAZE_ENGINE_MISSING');
window.__KKMZ_LOGO_DATA='data:image/png;base64,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';
const q=s=>root.querySelector(s),qa=s=>Array.from(root.querySelectorAll(s)),els={title:q('#kkmz-title'),letterWrap:q('#kkmz-letterWrap'),digitWrap:q('#kkmz-digitWrap'),figureWrap:q('#kkmz-figureWrap'),letter:q('#kkmz-letterSelect'),digit:q('#kkmz-digitSelect'),figure:q('#kkmz-figureSelect'),showName:q('#kkmz-showName'),showGroup:q('#kkmz-showGroup'),showDate:q('#kkmz-showDate'),includeSolution:q('#kkmz-includeSolution'),status:q('#kkmz-statusBox'),newBtn:q('#kkmz-newBtn'),print:q('#kkmz-printBtn'),stage:q('#kkmz-sheetStage'),meta:q('#kkmz-previewMeta')};
const LABELS={portrait:'Lang',landscape:'Breed',square:'Vierkant',diagonal:'Schuin',round:'Rond',letter:'Letter',digit:'Cijfer',figure:'Vorm',normal:'Normaal',organic:'Organisch',winding:'Kronkel',easy:'Makkelijk',hard:'Moeilijk',small:'Klein',medium:'Normaal',large:'Groot'};
const DENSITY_LABELS={wide:'Breed',regular:'Normaal',narrow:'Smal'};
const FIGURE_LABELS={star:'Ster',heart:'Hart',moon:'Maan',cloud:'Wolk',sun:'Zon',drop:'Druppel',lightning:'Bliksem',shield:'Schild',crown:'Kroon',rocket:'Raket',tree:'Boom',mushroom:'Paddenstoel',apple:'Appel',flower:'Bloem',butterfly:'Vlinder',fish:'Vis',turtle:'Schildpad',snail:'Slak',cat:'Kattenkop',rabbit:'Konijnenkop',house:'Huis',gift:'Cadeau',puzzle:'Puzzelstuk',pencil:'Potlood',leaf:'Blad',ghost:'Spook',pumpkin:'Pompoen'};
const state={shape:'square',style:'normal',difficulty:'normal',size:'medium',density:'regular',seed:makeSeed(),results:null,activeTab:'student',generationId:0,generating:false};
function makeSeed(){if(window.crypto&&crypto.getRandomValues){const a=new Uint32Array(1);crypto.getRandomValues(a);return a[0]}return (Date.now()^Math.floor(Math.random()*0xffffffff))>>>0}
function esc(s){return String(s).replace(/[&<>"']/g,ch=>({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[ch]))}
function selectButtons(sel,key,val){qa(sel).forEach(b=>b.classList.toggle('active',String(b.dataset[key])===String(val)))}
function setStatus(kind,title,text){els.status.className='status '+kind;els.status.innerHTML='<strong>'+esc(title)+'</strong><span>'+esc(text)+'</span>'}
function setGenerating(v){state.generating=v;els.newBtn.disabled=v;els.print.disabled=v}
function glyphValue(){return state.shape==='letter'?els.letter.value:state.shape==='digit'?els.digit.value:''}
function figureValue(){return state.shape==='figure'?els.figure.value:''}
function updateShapeExtra(){els.letterWrap.classList.toggle('hidden',state.shape!=='letter');els.digitWrap.classList.toggle('hidden',state.shape!=='digit');els.figureWrap.classList.toggle('hidden',state.shape!=='figure')}
function shapeDisplay(){const extra=glyphValue()||(figureValue()?FIGURE_LABELS[figureValue()]: '');return LABELS[state.shape]+(extra?' · '+extra:'')}
function updateMeta(){els.meta.textContent=shapeDisplay()+' · '+LABELS[state.style]+' · '+LABELS[state.size]+' · gangen '+DENSITY_LABELS[state.density]+' · '+LABELS[state.difficulty]}
function generate(){const id=++state.generationId;setGenerating(true);setStatus('info','Doolhof wordt gemaakt','De unieke route, START/FINISH en moeilijkheid worden gecontroleerd.');els.stage.innerHTML='<div class="empty-preview"><div><strong>Doolhof wordt gecontroleerd</strong>De preview verschijnt automatisch.</div></div>';setTimeout(()=>{try{const r=E.generateMaze({shape:state.shape,density:state.density,difficulty:state.difficulty,glyph:glyphValue()||'A',figure:figureValue()||'star',seed:state.seed,candidates:30}),v1=E.validateGraph(r),v2=E.independentValidate(r);if(!v1.valid||!v2.valid||r.measuredDifficulty!==state.difficulty)throw new Error('FINAL_VALIDATION_FAILED');if(id!==state.generationId)return;state.results=[r];setStatus('success','Doolhof gecontroleerd','Unieke route, veilige START/FINISH en het gekozen moeilijkheidsniveau zijn gecontroleerd.');renderPreview()}catch(err){console.error(err);if(id!==state.generationId)return;state.results=null;setStatus('error','Deze versie kon niet veilig worden gemaakt','Klik op Nieuwe versie. Er wordt nooit een onbewezen doolhof getoond.');els.stage.innerHTML='<div class="empty-preview"><div><strong>Geen doolhof weergegeven</strong>De eindcontrole heeft deze versie tegengehouden.</div></div>'}finally{if(id===state.generationId)setGenerating(false)}},20)}
function baseTransform(result,p){const [x,y]=p;if(result.shape==='diagonal')return [x-y,x+y];return [x,y]}
function activeBounds(result){const t=result.topo;let minX=Infinity,minY=Infinity,maxX=-Infinity,maxY=-Infinity;for(const i of E.activeList(t)){const [r,c]=E.rc(i,t.cols);for(const p of [[c,r],[c+1,r],[c,r+1],[c+1,r+1]]){const z=baseTransform(result,p);minX=Math.min(minX,z[0]);minY=Math.min(minY,z[1]);maxX=Math.max(maxX,z[0]);maxY=Math.max(maxY,z[1])}}return {minX,minY,maxX,maxY}}
function makeMapper(result,U=1100,pad=105){const b=activeBounds(result),w=Math.max(.001,b.maxX-b.minX),h=Math.max(.001,b.maxY-b.minY),scale=Math.min((U-2*pad)/w,(U-2*pad)/h),ox=(U-w*scale)/2-b.minX*scale,oy=(U-h*scale)/2-b.minY*scale;return p=>{const z=baseTransform(result,p);return [ox+z[0]*scale,oy+z[1]*scale]}}
function rngFor(result,salt){return E.createRng((result.seed^salt)>>>0)}
function keyPoint(k){const a=k.split(',').map(Number);return [a[0],a[1]]}
function wallVertexKeys(walls){const s=new Set();walls.forEach(w=>{s.add(w.key1);s.add(w.key2)});return Array.from(s)}
function jitterVertices(walls,rng,intensity){const map=new Map();for(const k of wallVertexKeys(walls)){const p=keyPoint(k),jx=(rng()*2-1)*intensity,jy=(rng()*2-1)*intensity;map.set(k,[p[0]+jx,p[1]+jy])}return map}
function qSample(p0,c,p1,n=5){const out=[];for(let i=0;i<=n;i++){const t=i/n,u=1-t;out.push([u*u*p0[0]+2*u*t*c[0]+t*t*p1[0],u*u*p0[1]+2*u*t*c[1]+t*t*p1[1]])}return out}
function cSample(p0,c1,c2,p1,n=6){const out=[];for(let i=0;i<=n;i++){const t=i/n,u=1-t;out.push([u*u*u*p0[0]+3*u*u*t*c1[0]+3*u*t*t*c2[0]+t*t*t*p1[0],u*u*u*p0[1]+3*u*u*t*c1[1]+3*u*t*t*c2[1]+t*t*t*p1[1]])}return out}
function orient(a,b,c){return (b[0]-a[0])*(c[1]-a[1])-(b[1]-a[1])*(c[0]-a[0])}function onSeg(a,b,p){return Math.min(a[0],b[0])-1e-7<=p[0]&&p[0]<=Math.max(a[0],b[0])+1e-7&&Math.min(a[1],b[1])-1e-7<=p[1]&&p[1]<=Math.max(a[1],b[1])+1e-7}
function segIntersect(a,b,c,d){const o1=orient(a,b,c),o2=orient(a,b,d),o3=orient(c,d,a),o4=orient(c,d,b);if(((o1>1e-7&&o2<-1e-7)||(o1<-1e-7&&o2>1e-7))&&((o3>1e-7&&o4<-1e-7)||(o3<-1e-7&&o4>1e-7)))return true;if(Math.abs(o1)<=1e-7&&onSeg(a,b,c))return true;if(Math.abs(o2)<=1e-7&&onSeg(a,b,d))return true;if(Math.abs(o3)<=1e-7&&onSeg(c,d,a))return true;if(Math.abs(o4)<=1e-7&&onSeg(c,d,b))return true;return false}
function bbox(poly){let x1=Infinity,y1=Infinity,x2=-Infinity,y2=-Infinity;for(const p of poly){x1=Math.min(x1,p[0]);y1=Math.min(y1,p[1]);x2=Math.max(x2,p[0]);y2=Math.max(y2,p[1])}return [x1,y1,x2,y2]}function boxesOverlap(a,b,m=0){return !(a[2]+m<b[0]-m||b[2]+m<a[0]-m||a[3]+m<b[1]-m||b[3]+m<a[1]-m)}
function pointSegDist(p,a,b){const dx=b[0]-a[0],dy=b[1]-a[1],l2=dx*dx+dy*dy;if(l2<1e-12)return Math.hypot(p[0]-a[0],p[1]-a[1]);let t=((p[0]-a[0])*dx+(p[1]-a[1])*dy)/l2;t=Math.max(0,Math.min(1,t));return Math.hypot(p[0]-(a[0]+t*dx),p[1]-(a[1]+t*dy))}
function segDist(a,b,c,d){if(segIntersect(a,b,c,d))return 0;return Math.min(pointSegDist(a,c,d),pointSegDist(b,c,d),pointSegDist(c,a,b),pointSegDist(d,a,b))}
function validateCurves(curves,minClear=.22){const boxes=curves.map(c=>bbox(c.samples));for(let i=0;i<curves.length;i++){const P=curves[i].samples;for(let a=0;a<P.length-1;a++)for(let b=a+2;b<P.length-1;b++){if(a===0&&b===P.length-2&&Math.hypot(P[0][0]-P[P.length-1][0],P[0][1]-P[P.length-1][1])<1e-5)continue;if(segIntersect(P[a],P[a+1],P[b],P[b+1]))return false}}for(let i=0;i<curves.length;i++)for(let j=i+1;j<curves.length;j++){const A=curves[i],B=curves[j];if(A.keys.some(k=>B.keys.includes(k)))continue;if(!boxesOverlap(boxes[i],boxes[j],minClear))continue;for(let a=0;a<A.samples.length-1;a++)for(let b=0;b<B.samples.length-1;b++)if(segDist(A.samples[a],A.samples[a+1],B.samples[b],B.samples[b+1])<minClear)return false}return true}
function organicGeometry(result){const walls=E.wallSegments(result);for(const intensity of [.105,.075,.045,.025]){const rng=rngFor(result,0xA53C9E17),verts=jitterVertices(walls,rng,intensity),curves=[];for(const w of walls){const a=verts.get(w.key1),b=verts.get(w.key2),mx=(a[0]+b[0])/2,my=(a[1]+b[1])/2,dx=b[0]-a[0],dy=b[1]-a[1],len=Math.hypot(dx,dy)||1,off=(rng()*2-1)*intensity*.65,c=[mx-dy/len*off,my+dx/len*off];curves.push({a,b,c,keys:[w.key1,w.key2],samples:qSample(a,c,b,5)})}if(validateCurves(curves,.27))return {type:'organic',curves,verts,intensity}}return null}
function wallChains(walls){const inc=new Map();walls.forEach((w,i)=>{for(const k of [w.key1,w.key2]){if(!inc.has(k))inc.set(k,[]);inc.get(k).push(i)}});const used=new Uint8Array(walls.length),chains=[];function other(e,k){const w=walls[e];return w.key1===k?w.key2:w.key1}function walk(start,e0){const keys=[start],edges=[],start0=start;let cur=start,e=e0,guard=0;while(e!=null&&!used[e]&&guard++<walls.length+5){used[e]=1;edges.push(e);const nxt=other(e,cur);keys.push(nxt);if(nxt===start0)break;const list=inc.get(nxt)||[];if(list.length!==2)break;const ne=list[0]===e?list[1]:list[0];if(used[ne])break;cur=nxt;e=ne}return {keys,edges}}
for(const [k,list] of inc)if(list.length!==2)for(const e of list)if(!used[e])chains.push(walk(k,e));for(let e=0;e<walls.length;e++)if(!used[e])chains.push(walk(walls[e].key1,e));return chains}
function catmullSegments(points,tension=.82){const segs=[];if(points.length<2)return segs;for(let i=0;i<points.length-1;i++){const p0=points[i-1]||points[i],p1=points[i],p2=points[i+1],p3=points[i+2]||p2,c1=[p1[0]+(p2[0]-p0[0])*tension/6,p1[1]+(p2[1]-p0[1])*tension/6],c2=[p2[0]-(p3[0]-p1[0])*tension/6,p2[1]-(p3[1]-p1[1])*tension/6];segs.push({p0:p1,c1,c2,p1:p2})}return segs}
function windingGeometry(result){const walls=E.wallSegments(result),chains=wallChains(walls);for(const intensity of [.32,.27,.22,.17,.125,.09]){const rng=rngFor(result,0xC7A1D23B),verts=jitterVertices(walls,rng,intensity*.28),curves=[];for(const ch of chains){let pts=[];for(let z=0;z<ch.edges.length;z++){const k1=ch.keys[z],k2=ch.keys[z+1],a=verts.get(k1),b=verts.get(k2);if(z===0)pts.push(a);const dx=b[0]-a[0],dy=b[1]-a[1],len=Math.hypot(dx,dy)||1,off=(rng()*2-1)*intensity,mid=[(a[0]+b[0])/2-dy/len*off,(a[1]+b[1])/2+dx/len*off];pts.push(mid,b)}const segs=catmullSegments(pts,.98),samples=[];for(const sg of segs){const part=cSample(sg.p0,sg.c1,sg.c2,sg.p1,7);if(samples.length)part.shift();samples.push(...part)}curves.push({segs,samples,keys:ch.keys})}if(validateCurves(curves,.32))return {type:'winding',curves,verts,intensity}}return null}
function fmt(p){return p[0].toFixed(2)+' '+p[1].toFixed(2)}
function svgPathOrganic(curve,map){const a=map(curve.a),c=map(curve.c),b=map(curve.b);return 'M '+fmt(a)+' Q '+fmt(c)+' '+fmt(b)}
function svgPathWinding(curve,map){if(!curve.segs.length)return '';let d='M '+fmt(map(curve.segs[0].p0));for(const s of curve.segs)d+=' C '+fmt(map(s.c1))+' '+fmt(map(s.c2))+' '+fmt(map(s.p1));return d}
function openingOut(result,which,map){const p=E.openingPoint(result,which),o=E.outsidePoint(result,which,.7),mp=map(p),mo=map(o),dx=mo[0]-mp[0],dy=mo[1]-mp[1],l=Math.hypot(dx,dy)||1;return {p:mp,dir:[dx/l,dy/l]}}
function smoothMappedPath(points){if(points.length<2)return '';const segs=catmullSegments(points,.75);let d='M '+fmt(points[0]);for(const s of segs)d+=' C '+fmt(s.c1)+' '+fmt(s.c2)+' '+fmt(s.p1);return d}
function mazeSvg(result,solutionMode,physicalMm){const U=1100,map=makeMapper(result,U,110),walls=E.wallSegments(result),style=state.style,sizeComp=150/physicalMm,normalLW=(result.topo.count<90?4.3:result.topo.count<220?3.4:2.7)*sizeComp;let geometry=null;if(style==='organic')geometry=organicGeometry(result);if(style==='winding')geometry=windingGeometry(result);if(style!=='normal'&&!geometry)throw new Error('GEOMETRY_VALIDATION_FAILED');let s='<svg class="kkmz-maze-svg" role="img" aria-label="Doolhof" viewBox="0 0 '+U+' '+U+'" style="width:'+physicalMm+'mm;height:'+physicalMm+'mm"><rect width="1100" height="1100" fill="white"/>';
if(style==='normal'){for(const w of walls){const a=map(w.a),b=map(w.b);s+='<line x1="'+a[0].toFixed(2)+'" y1="'+a[1].toFixed(2)+'" x2="'+b[0].toFixed(2)+'" y2="'+b[1].toFixed(2)+'" stroke="#111" stroke-width="'+normalLW+'" stroke-linecap="round"/>'}}else if(style==='organic'){for(const c of geometry.curves)s+='<path d="'+svgPathOrganic(c,map)+'" fill="none" stroke="#111" stroke-width="'+normalLW+'" stroke-linecap="round" stroke-linejoin="round"/>'}else{for(const c of geometry.curves)s+='<path d="'+svgPathWinding(c,map)+'" fill="none" stroke="#111" stroke-width="'+normalLW+'" stroke-linecap="round" stroke-linejoin="round"/>'}
if(solutionMode){let pts=E.pathCenters(result).map(map),st=openingOut(result,'start',map),en=openingOut(result,'end',map);pts.unshift(st.p);pts.push(en.p);const sw=Math.max(9,820/Math.sqrt(result.topo.count)*.32);s+='<polyline points="'+pts.map(p=>p[0].toFixed(1)+','+p[1].toFixed(1)).join(' ')+'" fill="none" stroke="#555" stroke-width="'+sw+'" stroke-linecap="round" stroke-linejoin="round" opacity=".76"/>'}
const A=openingOut(result,'start',map),B=openingOut(result,'end',map);function lab(o,text){const x=o.p[0]+o.dir[0]*62,y=o.p[1]+o.dir[1]*62;return '<text x="'+x+'" y="'+y+'" text-anchor="middle" dominant-baseline="central" font-family="Arial,Helvetica,sans-serif" font-size="23" font-weight="800" fill="#111">'+text+'</text>'}s+=lab(A,'START')+lab(B,'FINISH')+'</svg>';return s}
function studentFieldsHtml(){const a=[];if(els.showName.checked)a.push(['Naam',66]);if(els.showGroup.checked)a.push(['Groep',40]);if(els.showDate.checked)a.push(['Datum',46]);if(!a.length)return '';return '<div class="kkmz-print-student-row">'+a.map(([x,w])=>'<div class="kkmz-print-student-field"><span class="kkmz-print-student-label">'+x+'</span><span class="kkmz-print-student-line" style="width:'+w+'mm"></span></div>').join('')+'</div>'}
function puzzleBlock(result,solutionMode){const mm=state.size==='small'?120:state.size==='large'?166:146;return '<div class="kkmz-print-puzzle">'+mazeSvg(result,solutionMode,mm)+'</div>'}
function sheetHtml(solutionMode){if(!state.results)return '';const title=esc(els.title.value.trim()||'Doolhof'),r=state.results[0],body='<div class="kkmz-print-puzzles one">'+puzzleBlock(r,solutionMode)+'</div>',info=solutionMode?'Antwoordblad · '+shapeDisplay()+' · '+LABELS[state.style]:'Vind de weg van START naar FINISH.';return '<section class="kkmz-print-page"><div class="kkmz-print-content"><header class="kkmz-print-header"><div class="kkmz-print-heading"><div class="kkmz-print-kicker">Doolhof</div><h1 class="kkmz-print-title">'+title+'</h1></div><div class="kkmz-print-logo-box"><img class="kkmz-print-logo" src="'+window.__KKMZ_LOGO_DATA+'" alt="Klasklaar"></div></header>'+studentFieldsHtml()+'<p class="kkmz-print-instruction">'+esc(info)+'</p>'+body+'<div class="kkmz-print-footer">Klasklaar.nl</div></div></section>'}
function renderPreview(){if(!state.results)return;if(state.activeTab==='solution'&&!els.includeSolution.checked)state.activeTab='student';qa('.tab').forEach(t=>t.classList.toggle('active',t.dataset.tab===state.activeTab));const solTab=q('.tab[data-tab="solution"]');if(solTab)solTab.style.display=els.includeSolution.checked?'':'none';try{els.stage.innerHTML='<div class="kkmz-preview-page-wrap kkmz-doc" id="kkmz-previewPageWrap">'+sheetHtml(state.activeTab==='solution')+'</div>';requestAnimationFrame(fitSheet)}catch(err){console.error(err);state.results=null;setStatus('error','Deze vormgeving is tegengehouden','De geometrische controle vond een onveilige kruising. Klik op Nieuwe versie.');els.stage.innerHTML='<div class="empty-preview"><div><strong>Geen doolhof weergegeven</strong>De vormgeving was niet veilig genoeg.</div></div>'}}
function fitSheet(){const wrap=q('#kkmz-previewPageWrap');if(!wrap)return;const page=wrap.querySelector('.kkmz-print-page');if(!page)return;wrap.style.transform='none';const stageW=els.stage.clientWidth,baseW=page.getBoundingClientRect().width;if(!stageW||!baseW)return;const scale=Math.min(1.42,Math.max(.25,(stageW-8)/baseW));wrap.style.transform='scale('+scale+')';wrap.style.left=Math.max(0,(stageW-baseW*scale)/2)+'px';wrap.style.top='0';els.stage.style.height=Math.ceil(page.getBoundingClientRect().height*scale+8)+'px'}
qa('.shape-card').forEach(b=>b.addEventListener('click',()=>{state.shape=b.dataset.shape;selectButtons('.shape-card','shape',state.shape);updateShapeExtra();state.seed=makeSeed();updateMeta();generate()}));
qa('.style-card').forEach(b=>b.addEventListener('click',()=>{state.style=b.dataset.style;selectButtons('.style-card','style',state.style);updateMeta();renderPreview()}));
qa('.sizes .choice').forEach(b=>b.addEventListener('click',()=>{state.size=b.dataset.size;selectButtons('.sizes .choice','size',state.size);updateMeta();state.results&&renderPreview()}));
qa('.corridors .choice').forEach(b=>b.addEventListener('click',()=>{state.density=b.dataset.density;selectButtons('.corridors .choice','density',state.density);state.seed=makeSeed();updateMeta();generate()}));
qa('.levels .choice').forEach(b=>b.addEventListener('click',()=>{state.difficulty=b.dataset.difficulty;selectButtons('.levels .choice','difficulty',state.difficulty);state.seed=makeSeed();updateMeta();generate()}));
[els.letter,els.digit,els.figure].forEach(x=>x.addEventListener('change',()=>{state.seed=makeSeed();updateMeta();generate()}));
els.title.addEventListener('input',()=>state.results&&renderPreview());[els.showName,els.showGroup,els.showDate].forEach(x=>x.addEventListener('change',()=>state.results&&renderPreview()));els.includeSolution.addEventListener('change',()=>{if(!els.includeSolution.checked&&state.activeTab==='solution')state.activeTab='student';state.results&&renderPreview()});els.newBtn.addEventListener('click',()=>{state.seed=makeSeed();generate()});qa('.tab').forEach(t=>t.addEventListener('click',()=>{if(t.dataset.tab==='solution'&&!els.includeSolution.checked)return;state.activeTab=t.dataset.tab;renderPreview()}));window.addEventListener('resize',()=>requestAnimationFrame(fitSheet));
function printWorksheet(){
  if(!state.results||state.generating)return;
  let pages;
  try{
    pages=[sheetHtml(false)];
    if(els.includeSolution.checked)pages.push(sheetHtml(true));
  }catch(err){
    console.error(err);
    setStatus('error','Printen is tegengehouden','De geometrische eindcontrole kon deze versie niet bevestigen.');
    return;
  }
  // Print in a separate document so JouwWeb advertisements and page elements
  // cannot be included in the worksheet printout.
  const printWindow=window.open('','_blank','width=900,height=900');
  if(!printWindow){
    alert('De printpagina kon niet worden geopend. Sta pop-ups voor Klasklaar toe en probeer het opnieuw.');
    return;
  }
  const printDoc=printWindow.document;
  printDoc.open();printDoc.close();
  printDoc.title='Doolhof - Klasklaar';
  const style=printDoc.createElement('style');
  const sourceStyle=document.getElementById('kkmz-maze-style');
  const printCss=sourceStyle?sourceStyle.textContent:'';
  style.textContent=printCss+'\n'+
    '@page{size:A4 portrait;margin:0}'+
    'html,body{margin:0!important;padding:0!important;background:#fff!important;}'+
    '#kkmz-print-output{display:block!important;width:210mm!important;margin:0!important;padding:0!important;background:#fff!important;}'+
    '.kkmz-doc .kkmz-print-page{display:block!important;width:210mm!important;min-width:210mm!important;max-width:210mm!important;height:297mm!important;min-height:297mm!important;max-height:297mm!important;margin:0!important;box-shadow:none!important;page-break-after:always!important;break-after:page!important;overflow:hidden!important;}'+
    '.kkmz-doc .kkmz-print-page:last-child{page-break-after:auto!important;break-after:auto!important;}';
  printDoc.head.appendChild(style);
  const output=printDoc.createElement('div');
  output.id='kkmz-print-output';
  output.className='kkmz-doc';
  output.innerHTML=pages.join('');
  printDoc.body.appendChild(output);
  const startPrint=function(){
    try{
      printWindow.focus();
      printWindow.print();
    }catch(err){console.error(err);}
  };
  printWindow.onafterprint=function(){setTimeout(function(){try{printWindow.close();}catch(_e){}},100);};
  setTimeout(startPrint,180);
}els.print.addEventListener('click',printWorksheet);
selectButtons('.shape-card','shape',state.shape);selectButtons('.style-card','style',state.style);selectButtons('.levels .choice','difficulty',state.difficulty);selectButtons('.sizes .choice','size',state.size);selectButtons('.corridors .choice','density',state.density);updateShapeExtra();updateMeta();window.__KKMZ_DEBUG={state,E,mazeSvg,organicGeometry,windingGeometry,generateNow:generate,renderPreview};generate();
})();

${body}

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