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index.html
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<html>
<!-- newest version available on https://github.com/schmoggolino/PathFinder2 -->
<script type="text/javascript">
//alert('28ms');
var arraysize=30;
var outter=[];
var inner=[];
var startpoints=3;
var allStartpoints=[];
var density=3; //likelyhood of black squares/10
var size;
var intervalTime=1000;
var endpoint=Math.round(Math.floor(Math.random()*(arraysize-1+1)+2));
var current=[];
var currentNumber;
var found=false;
function generate(){
outter=[];
//remove old table from html dom
var element = document.getElementById("mytable");
if(element!=null){
element.remove();
element.innerHTML='';
}
//get parameters
arraysize=parseInt(document.getElementsByName("size")[0].value);
startpoints=parseInt(document.getElementsByName("points")[0].value);
allStartpoints=[];
endpoint=Math.round(Math.round(Math.random()*(arraysize-3)+2));
density=parseInt(document.getElementsByName("density")[0].value);
wantedSolvablePoints=parseInt(document.getElementsByName("solvpoints")[0].value);
if(wantedSolvablePoints>startpoints ){
wantedSolvablePoints=startpoints;
}
//create starting points
for(var i=1; i<=startpoints; i++){
var min = arraysize/startpoints*i-1;
var max = arraysize/startpoints*i;
if(min==0){min=2}
allStartpoints.push(Math.round(Math.random()*(max-min+1)+min));
}
//create actual field
//
for(var i =1; i<=arraysize; i++){
inner=[];//the array inside the array (columns in the row)
for(var k =1; k<=arraysize; k++){
if(k==1 && allStartpoints.indexOf(i)>-1){//if current cordinate is startpoint
inner.push('start');
}else if(k==arraysize && endpoint==i){//endpoint/target
inner.push('end');
}else if(i==1 || i== arraysize || k==arraysize ||k==1){//or is part of the border of the labyrinth
inner.push('block');
}else{
if(Math.random()*10>density){
inner.push('leer');
}else{
inner.push('block');
}
}
}
outter.push(inner);//put colums into rows
}
outercells=createHTMLTableFromArray(outter);//outercells beinhaltet die html elemente/objekte
var solvablePoints=0;
var l=0;
while(l<=allStartpoints.length-1 && wantedSolvablePoints>solvablePoints){
if(solvePoint(l)){
solvablePoints++;
}
l++;
original=outter;
ResetLabyrinth(original);
}
/*
allStartpoints.forEach(function(startpoint){
//draw(outercells);
if(wantedSolvablePoints>=solvablePoints){
break;
}
if(solvePoint(l)){
solvablePoints++;
}
i++;
l++;
original=outter;
draw(original);
});
*/
if(solvablePoints<wantedSolvablePoints){
console.log('generating new (solvalepoints='+solvablePoints+') wanted= '+wantedSolvablePoints+' ');
generate();
}
ArrayToConsole(outter);
size='random';
}
function ArrayToConsole( input){
output='['
var k=0;
input.forEach(function(ebene1){
if(k==0){
output=output+'[';
}else{
output=output+',[';
}
var i=0;
ebene1.forEach(function(ebene2){
if(i==0){
output=output+"'"+ebene2+"'";
}else{
output=output+','+"'"+ebene2+"'";
}
i++;
});
k++;
output=output+']';
});
output=output+'];';
console.log(output);
}
function generateSaved(sizeg){
bigField=[['block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block'],['block','block','leer','leer','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','block','leer','leer','block','leer','leer','leer','leer','leer','block','leer','leer','block','leer','leer','block'],['block','leer','leer','leer','leer','block','block','block','block','block','leer','leer','block','leer','block','block','block','block','leer','leer','block','leer','leer','leer','block','leer','block','leer','block','block'],['block','leer','block','block','leer','leer','leer','block','block','leer','leer','block','leer','leer','leer','block','block','leer','block','block','leer','leer','block','leer','leer','block','block','leer','leer','block'],['block','leer','block','leer','leer','leer','block','block','leer','block','leer','block','leer','leer','block','leer','leer','block','leer','leer','block','leer','block','block','block','leer','leer','leer','leer','block'],['block','leer','leer','leer','block','leer','block','leer','leer','leer','block','block','leer','leer','leer','leer','leer','leer','leer','block','block','block','leer','leer','leer','leer','leer','block','leer','block'],['start','leer','leer','leer','leer','block','block','block','leer','leer','leer','block','leer','block','block','block','leer','leer','block','leer','block','leer','leer','block','leer','block','leer','leer','leer','block'],['block','leer','leer','leer','leer','leer','leer','block','block','leer','block','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','leer','leer','block','block','block'],['block','leer','block','leer','leer','leer','leer','leer','leer','block','leer','block','leer','leer','leer','leer','block','block','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','block','block'],['block','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','block','leer','leer','leer','leer','leer','leer','block','leer','leer','block','leer','block'],['block','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','leer','block'],['block','leer','block','leer','leer','block','leer','block','leer','leer','leer','leer','leer','block','leer','leer','block','leer','leer','block','leer','block','block','block','block','leer','leer','block','leer','block'],['block','leer','leer','block','block','leer','block','leer','block','leer','leer','leer','block','block','leer','leer','leer','leer','leer','block','leer','block','leer','leer','block','leer','leer','leer','leer','block'],['block','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','leer','block','leer','block','block','block','leer','block','block','leer','leer','block','leer','block','block','block','block','leer','block'],['start','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','leer','block','leer','leer','block','leer','leer','leer','block','leer','leer','leer','block','leer','leer','leer','leer','block'],['block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','block','block','block','leer','leer','leer','leer','leer','block','block','block','leer','block','block'],['block','leer','leer','block','block','leer','leer','block','leer','leer','block','block','leer','leer','leer','block','block','block','block','block','leer','leer','leer','block','block','leer','leer','leer','leer','end'],['block','block','block','leer','block','leer','block','leer','block','leer','leer','leer','block','block','leer','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','block','leer','leer','leer','block'],['block','leer','leer','leer','leer','block','block','block','leer','block','block','block','block','block','block','leer','leer','block','leer','block','block','leer','block','leer','leer','leer','leer','leer','block','block'],['block','leer','leer','block','leer','leer','leer','leer','leer','leer','leer','block','block','leer','leer','leer','leer','leer','leer','leer','block','leer','leer','block','block','block','block','leer','block','block'],['block','leer','block','block','leer','leer','block','leer','leer','block','leer','leer','leer','block','leer','leer','block','leer','block','block','leer','block','block','leer','leer','block','block','block','leer','block'],['start','leer','leer','leer','block','leer','block','leer','block','leer','leer','block','leer','leer','leer','leer','leer','block','leer','leer','block','block','leer','block','leer','leer','block','leer','leer','block'],['block','block','block','leer','leer','block','leer','leer','leer','block','leer','leer','block','leer','block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','block','block','leer','block'],['block','block','leer','leer','block','leer','leer','leer','leer','leer','leer','block','leer','block','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','leer','block','leer','leer','leer','block'],['block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','block','leer','block','block','leer','leer','leer','leer','leer','block','block','leer','leer','leer','block','leer','leer','block'],['block','leer','leer','leer','block','block','block','leer','block','block','leer','leer','leer','block','leer','block','block','leer','leer','block','leer','block','leer','leer','block','leer','leer','leer','leer','block'],['block','leer','leer','leer','leer','leer','leer','leer','leer','block','block','block','leer','leer','leer','leer','leer','block','block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','block'],['block','leer','block','leer','block','leer','leer','block','block','leer','leer','leer','leer','block','leer','leer','leer','leer','block','leer','leer','block','leer','leer','leer','block','block','leer','leer','block'],['block','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','block','block','block','block','block','block','leer','leer','block','leer','block','leer','leer','leer','leer','block','block','block','block'],['block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block','block']];
smallField=[['block','block','block','block','block','block','block','block','block','block','block','block','block','block','block'],['block','leer','block','block','leer','leer','leer','leer','block','block','block','leer','block','leer','block'],['block','leer','block','leer','leer','leer','block','leer','leer','block','leer','leer','leer','leer','block'],['start','leer','block','leer','leer','leer','leer','block','leer','leer','leer','leer','block','leer','block'],['block','leer','block','block','leer','leer','leer','leer','block','leer','leer','leer','leer','leer','block'],['block','leer','leer','block','leer','leer','leer','block','leer','leer','leer','leer','leer','leer','block'],['block','leer','leer','leer','block','leer','leer','leer','leer','block','block','block','leer','leer','block'],['start','leer','block','leer','leer','leer','leer','block','block','leer','leer','leer','leer','leer','block'],['block','leer','block','leer','leer','leer','block','leer','leer','leer','leer','leer','block','leer','block'],['block','leer','leer','leer','leer','block','leer','leer','block','leer','leer','block','leer','leer','end'],['block','leer','block','leer','leer','block','block','leer','leer','leer','leer','leer','leer','block','block'],['start','leer','block','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','block'],['block','leer','leer','leer','leer','leer','leer','leer','leer','leer','block','leer','block','leer','block'],['block','leer','block','leer','block','leer','leer','leer','leer','leer','leer','leer','block','leer','block'],['block','block','block','block','block','block','block','block','block','block','block','block','block','block','block']];
if(sizeg=='small'){
outter=smallField;
arraysize=15;
endpoint=10;
allStartpoints=[];
allStartpoints.push(4);
allStartpoints.push(8);
allStartpoints.push(12);
size='small';
intervalTime=1000;
}else{
outter=bigField;
arraysize=30;
endpoint=17;
allStartpoints=[];
allStartpoints.push(7);
allStartpoints.push(15);
allStartpoints.push(22);
size='big';
}
var element = document.getElementById("mytable");
if(element!=null){
element.remove();
element.innerHTML='';
}
outercells=createHTMLTableFromArray(outter);
}
function createHTMLTableFromArray(input){
var table=document.createElement('table');
table.id= "mytable";
table.name='mytable';
table.style.cssText='border-collapse: collapse; '
var tablebody=document.createElement('tbody');
outercells=[];
input.forEach(function(rowdata){
var row=document.createElement('tr');
innercells=[];
rowdata.forEach(function(celldata){
var cell=document.createElement('td');
cell.style.cssText='border-collapse: collapse; width: 30px; height: 30px; overflow: hidden;'
if(celldata=='block'){
cell.style.cssText=cell.style.cssText+'background-color:black';
}else if(celldata=='start'){
cell.style.cssText=cell.style.cssText+'background-color:green; color:green; ';
}else if(celldata=='end'){
cell.style.cssText=cell.style.cssText+'background-color:red; color:red; ';
}else{
cell.style.cssText=cell.style.cssText+'background-color:white ; color:white';
}
innercells.push(cell);
cell.appendChild(document.createTextNode(''));
row.appendChild(cell);
});
tablebody.appendChild(row);
outercells.push(innercells);
});
table.appendChild(tablebody);
document.body.appendChild(table);
return outercells;
}var original;
function solveAll(){
var i=0;
//alert(outercells.length+' '+innercells.length );
allStartpoints.forEach(function(startpoint){
//draw(outercells);
solvePoint(i);
i++;
});
}
function solveAllMulti(slowly){
console.log('solving all');
var i=0;
current=[];
currentNumber=0;
original=outter;
ResetLabyrinth(original);
allStartpoints.forEach(function(startpoint){
current.push([allStartpoints[i]-1,0]);
i++;
});
found=false;
if(slowly==true){
var result=false;
//restart the processCurrentFields function every -intervalTime- ms
var timerId = setInterval(function () {
result=processCurrentFields(slowly);
if(found==true){
console.log('stopping interval');
clearInterval(timerId);
retrackRoute();//when finished, show fastest route
}
}, intervalTime);
}else{
while(!found && current.length>0 && !processCurrentFields(slowly)){
}
retrackRoute();//when finished, show fastest route
}
console.log('finished solving all');
}
function solvePoint(i){
original=outter;
ResetLabyrinth(original);
currentNumber=0;
current=[[allStartpoints[i]-1,0]];
found=false;
while(!found && current.length>0 && !processCurrentFields()){
}
return found;
}
function retrackRoute(){
var route= findroute(endpoint-1,arraysize-1);//start from the point left of the end
console.log('Calculated route:'+route);
console.log('coloring route');
route.forEach(function(point){
outercells[point[0]][point[1]].style.cssText='background-color:blue'
});
}
function findroute(x,y){//recursivley finds the lowest number neighbor of the given point and returns the path in an array
console.log('tracking shortest route');
if(original[x][y]==1){//smallest possible number found
ret =[[x,y]];
return ret;
}
console.log('my value is '+original[x][y]+'('+x+''+y+')');
var NumbersOfNeighbours=[];
//get the numbers of the neighbors
if( x+1<arraysize-1
&& original[x+1][y]!='block'
&& original[x+1][y]!='end'
&& original[x+1][y]!=null
&& original[x+1][y]!='leer'
){
console.log('x+1 worked');
NumbersOfNeighbours[0]=original[x+1][y];
}else{
console.log('x+1 is '+original[x+1][y]);
NumbersOfNeighbours[0]=999999;
}
if( x-1>=0
&& original[x-1][y]!='block'
&& original[x-1][y]!='end'
&& original[x-1][y]!=null
&& original[x-1][y]!='leer'
){
console.log('x-1 worked');
NumbersOfNeighbours[1]=(original[x-1][y]);
}else{
console.log('x-1 is '+original[x-1][y]);
NumbersOfNeighbours[1]=999999;
}
if( y+1<arraysize-1
&& original[x][y+1]!='block'
&& original[x][y+1]!='end'
&&original[x][y+1]!=null
&&original[x][y+1]!='leer'
){
console.log('y+1 worked');
NumbersOfNeighbours[2]=(original[x][y+1]);
}else{
console.log('y+1 is '+original[x][y+1]);
NumbersOfNeighbours[2]=999999;
}
if(y-1>=0
&& original[x][y-1]!='block'
&& original[x][y-1]!='end'
&& original[x][y-1]!=null
&& original[x][y-1]!='leer'
){
console.log('y-1 worked');
NumbersOfNeighbours[3]=(original[x][y-1]);
}else{
NumbersOfNeighbours[3]=999999;
}
// got the numbers of the neighbors
var min= Math.min(...NumbersOfNeighbours);
var SmallestNeighbourIndex=NumbersOfNeighbours.indexOf(min);//the direction, in which the field lays can be determined by the index
console.log('index of nextPoint:'+ SmallestNeighbourIndex);
console.log('points:'+ NumbersOfNeighbours);
console.log('min:' +min);
var returnValue=[];
if(SmallestNeighbourIndex==0){
returnValue=findroute(x+1,y);
}else if(SmallestNeighbourIndex==1){
returnValue=findroute(x-1,y);
}else if(SmallestNeighbourIndex==2){
returnValue=findroute(x,y+1);
}else if(SmallestNeighbourIndex==3){
returnValue=findroute(x,y-1);
}
returnValue[returnValue.length+1]=[x,y];
return returnValue;
}
function ResetLabyrinth(input){
var i=0;
input.forEach(function(x){
var k=0;
x.forEach(function(y){
if(y!=='end' && y!=='start' && y!=='block' ){
outercells[i][k].style.cssText='background-color:white ; color:white';
outercells[i][k].textContent='';
original [i][k]='leer';
}else if(y=='block'){
//outercells[i][k].style.cssText='background-color:black ; color:black';
//outercells[i][k].textContent=i+''+k;
}
k++;
});
i++;
});
return input;
}
function processCurrentFields(slowly){
currentNumber=currentNumber+1;
var lastFields=current;//create a copy of the array "current", which contains all the newest fields (most recently visited)
current=[]; //reset the array to refill it with new fields later
lastFields.forEach(function (selectedField){//mark all unmarked neighbors of each field
if(selectedField[0]<arraysize && selectedField[1]<arraysize && selectedField[0]>=0 &&selectedField[1]>=0){
if(selectedField[0]+1<arraysize && original[selectedField[0]+1][selectedField[1]]=='end'){//if the end was found stop the search
found=true;
return true;
}
if(selectedField[0]+1<arraysize && original[selectedField[0]+1][selectedField[1]]=='leer'){
current.push([selectedField[0]+1 ,selectedField[1]]); //push this field into the "current" array for the next iteration
original [selectedField[0]+1][selectedField[1]]=currentNumber; //write the number into the array
outercells [selectedField[0]+1][selectedField[1]].textContent=currentNumber+''; //write the number into the html cell
outercells [selectedField[0]+1][selectedField[1]].style.cssText='background-color:white ; color:black';//some css changes
}
if(selectedField[0]-1>=0 && original[selectedField[0]-1][selectedField[1]]=='end'){//if the end was found stop the search
found=true;
return true;
}
if(selectedField[0]-1>=0 && original[selectedField[0]-1][selectedField[1]]=='leer'){
current.push([selectedField[0]-1 ,selectedField[1]]);
original [selectedField[0]-1][selectedField[1]]=currentNumber;
outercells [selectedField[0]-1][selectedField[1]].textContent=currentNumber+'';
outercells [selectedField[0]-1][selectedField[1]].style.cssText='background-color:white ; color:black'
}
if(selectedField[1]+1<arraysize &&original[selectedField[0]][selectedField[1]+1]=='end'){//if the end was found stop the search
found=true;
return true;
}
if(selectedField[1]+1<arraysize && original[selectedField[0]][selectedField[1]+1]=='leer'){
current.push([selectedField[0] ,selectedField[1]+1]);
original [selectedField[0]][selectedField[1]+1]=currentNumber;
outercells [selectedField[0]][selectedField[1]+1].textContent=currentNumber+'';
outercells [selectedField[0]][selectedField[1]+1].style.cssText='background-color:white ; color:black'
}
if(selectedField[1]-1>=0 && original[selectedField[0]][selectedField[1]-1]=='end'){//if the end was found stop the search
found=true;
return true;
}
if(selectedField[1]-1>=0 && original[selectedField[0]][selectedField[1]-1]=='leer'){
current.push([selectedField[0] ,selectedField[1]-1]);
original [selectedField[0]][selectedField[1]-1]=currentNumber;
outercells [selectedField[0]][selectedField[1]-1].textContent=currentNumber+'';
outercells [selectedField[0]][selectedField[1]-1].style.cssText='background-color:white ; color:black'
}
}
});
return false;
}
/****************************
Button functions
*****************************/
function openOptions(){
document.getElementById("options").style.cssText='';
document.getElementById("Menu").style.cssText='';
document.getElementById("essentials").style.cssText='';
document.getElementById("mainMenu").style.cssText='display: none;';
document.getElementById("timer").style.cssText='color:red;';
}
function small(){//small button
console.log('small clicked');
document.getElementById("Menu").style.cssText='';
document.getElementById("mainMenu").style.cssText='display: none;';
document.getElementById("options").style.cssText='display: none;';
document.getElementById("essentials").style.cssText='';
document.getElementById("timer").style.cssText='display: none;';
generateSaved('small');
}
function big(){//big button
console.log('big clicked');
document.getElementById("Menu").style.cssText='';
document.getElementById("mainMenu").style.cssText='display: none;';
document.getElementById("options").style.cssText='display: none;';
document.getElementById("essentials").style.cssText='';
document.getElementById("timer").style.cssText='color:red;';
generateSaved('big');
}
function download(){
try{
var url='plakat_schwarmintelligenz.pdf';
window.open(url, '_blank');
}catch(err){
alert('could not open the file '+err.message );
}
}
function play(){//playbutton
document.getElementById("timer").innerHTML='';
console.log('size of field:'+size);
if(size=='small'){
intervalTime=1000;
console.log('solving slow');
try {
solveAllMulti(true);//do it slowly
}
catch(err) {
alert('An unforseen error has occurred. Try reloading the page '+err.message);
}
}else if(size=='big'){
console.log('solving fast');
var t0 = performance.now();
try {
solveAllMulti(false);//do it slowly
}
catch(err) {
alert('An unforseen error has occurred. Try reloading the page '+err.message);
}
var t1 = performance.now();
alert('time used: '+ (t1 - t0)+'ms');
document.getElementById("timer").innerHTML='time used: '+ (t1 - t0)+'ms';
}else{
if(parseInt(document.getElementsByName("speedid")[0].value)>0){
console.log('solving slow');
intervalTime=parseInt(document.getElementsByName("speedid")[0].value)*1000;
try {
solveAllMulti(true);//do it slowly
}
catch(err) {
alert('An unforseen error has occurred. Try reloading the page '+err.message);
}
}else{
console.log('solving fast');
var t0 = performance.now();
try {
solveAllMulti(false);//do it slowly
}
catch(err) {
alert('An unforseen error has occurred. Try reloading the page '+err.message);
}
var t1 = performance.now();
alert('time used: '+ (t1 - t0)+'ms');
document.getElementById("timer").innerHTML='time used: '+ (t1 - t0)+'ms';
}
}
}
function t(){
generate();
play();
}
</script>
<div id="options" style="display: none;">
minimum solvable startpoints<input type="range" id="solvpoints" name="solvpoints"value="2" min="0" max="10" oninput="Output1.value = solvpoints.value"> <output name="Output1" id="Output1">2</output> <br>
Startpoints <input type="range" id="points" name="points" value="3" min="1" max="10" oninput="Output2.value = points.value"> <output name="Output2" id="Output2">3</output> <br>
size <input type="range" id="sizeid" name="size" value="30" min="10" max="100"oninput="Output3.value = sizeid.value"> <output name="Output3" id="Output3">30</output> <br>
Density <input type="range" id="densityid" name="density" value="3" min="0" max="10" oninput="Output4.value = densityid.value"> <output name="Output4" id="Output4">3</output> <br>
Speed <input type="range" id="speedid" name="speedid" value="1" min="0" max="5" step="0.1"oninput="Output5.value = speedid.value"> <output name="Output5" id="Output5">1</output> <br>
<button onclick="generate()">generate field</button><br>
Time for generation= minimumSolvablePoints x Size x Density
</div>
<div id="timer" style="display: none; color:red;">
</div>
<div id="essentials" style="display: none;">
<button onclick="play()">Play</button>
<button onclick="ResetLabyrinth(original);">back</button><br>
</div>
<div id="mainMenu" style=" width: 300px;
height: 50px;
position: absolute;
top:0;
bottom: 0;
left: 0;
right: 0;
text-align:center;
margin: auto;">
<button style=""onclick="small()">Small</button>
<button style=""onclick="big()">Big</button>
<button style=""onclick="openOptions()">Random</button>
<button onclick="download()">Plakat</button>
</div>
<!--Background-Color: green; border-radius: 50%!-->
<div id="Menu" style="display: none;">
<button onclick="small()">Small</button>
<button onclick="big()">Big</button>
<button onclick="openOptions()">Random</button>
<button onclick="download()">Plakat</button>
</div>
</html>