<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>사다리게임</title>
<style>
html,body{padding:0; margin:0; }
ul,li{ padding:0; margin:0; list-style:none;}
#div1{ display:inline-block; position:relative;}
#div1 > ul{ display:inline-block; position:relative; width:100%;}
#div1 > ul > li{ display:inline-block; float:left; text-align:center;}
#div1 > ul > li > input{ width:90%; text-align:center; }
#ladderboder{ position:relative; float:left;}
#ladderbody{ position:relative; display:inline-block;}
#ladderresult{ position:absolute; left:0; top:0;}
input{ border:1px solid;}
</style>
<script>
var maxuser = 20;
var linewidth = 80;
var svgHeight = 500;
var gridline = [];
var resultline = [];
var resultobj = { "user": 0, "list": [], "line": [] };
var linecolor = [];
window.onload = function () {
var btn1 = document.getElementById("btn1");
btn1.addEventListener("click", function () {
linecolor = [];
gridline = [];
resultline = [];
resultobj = { "user": 0, "list": [], "line": [] };
var num = document.getElementById("num").value;
if (num == undefined || num == "" || !Number(num)) {
num = 0;
}
if (num <= 1) {
alert("참여인원을 입력하세요.(최소 2명입니다.)");
document.getElementById("num").value = "";
document.getElementById("num").focus();
return;
}
if (num > maxuser) {
alert("참여인원은 최대 " + maxuser + "명입니다");
document.getElementById("num").value = "";
document.getElementById("num").focus();
return;
}
resultobj.user = num;
var html = [];
for (var i = 0; i < num; i++) {
var rndcolor = "#" + Math.round(Math.random() * 0xffffff).toString(16);
linecolor.push(rndcolor);
html.push("<li><input type=\"text\" style=\"border:1px solid " + rndcolor + "\" name=\"lname\" placeholder=\"이름" + (i + 1) + "\" onmouseover=\"LineResult(" + i + ")\" onmouseout=\"LineResultView()\"/></li>");
}
document.getElementById("ladderheader").innerHTML = html.join('');
var html = [];
for (var i = 0; i < num; i++) {
html.push("<li><input type=\"text\" name=\"litem\" placeholder=\"상품" + (i + 1) + "\"/></li>");
}
document.getElementById("ladderfooter").innerHTML = html.join('');
document.getElementById("resultuser").innerHTML = "";
var svgw = (num * linewidth);
document.getElementById("ladderboder").style.width = (num * linewidth) + "px";
document.getElementById("ladderboder").style.height = svgHeight + "px";
document.getElementById("ladderresult").style.width = (num * linewidth) + "px";
document.getElementById("ladderresult").style.height = svgHeight + "px";
document.getElementById("ladderresult").style.display = "none";
var svg = [];
svg.push("<svg onclick=\"XYSetting(event);\" id=\"laddersvg\" width=\"" + svgw + "\" height=\"" + svgHeight + "\">");
for (var i = 0; i < num; i++) {
var x = ((linewidth / 2) + (i * linewidth));
svg.push("<line x1=\"" + x + "\" y1=\"0\" x2=\"" + x + "\" y2=\"" + svgHeight + "\" stroke=\"#000\" stroke-width=\"1\"/>");
}
svg.push("</svg>");
var lb = document.getElementById("ladderboder");
lb.innerHTML = svg.join('');
var l = document.querySelectorAll("#div1 > ul > li");
l.forEach(function (el) {
el.style.width = linewidth + "px";
})
});
var btn2 = document.getElementById("btn2");
btn2.addEventListener("click", function () {
var ladderresult = document.getElementById("ladderresult");
ladderresult.style.display = "inline-block";
var rline = [];
for (var i = 0; i < gridline.length; i++) {
var ix = (gridline[i].x - 40) / linewidth;
rline.push({ "x1": gridline[i].x, "x2": gridline[i].x + linewidth, "y": gridline[i].y });
rline.push({ "x1": gridline[i].x + linewidth, "x2": gridline[i].x, "y": gridline[i].y });
}
for (var i = 0; i < resultobj.user; i++) {
var x = ((linewidth / 2) + (i * linewidth));
rline.push({ "x1": x, "x2": x, "y": svgHeight });
}
rline.sort(function (a, b) {
return a["y"] - b["y"];
});
var svg = [];
svg.push("<svg id=\"ladderresultsvg\" width=\"100%\" height=\"100%\">");
for (var i = 0; i < resultobj.user; i++) {
var lcolor = linecolor[i % linecolor.length];
var resultusr = document.getElementsByName("lname")[i].value;
if (resultusr == "") {
resultusr = document.getElementsByName("lname")[i].getAttribute("placeholder");
}
console.log(lcolor);
var linelist = [];
var bx = (i * linewidth) + (linewidth / 2);
var by = 0;
linelist.push({ "x": bx, "y": by });
for (var j = 0; j < rline.length; j++) {
if (rline[j].x1 == bx && by > rline[j].y - 1) {
linelist.push({ "x": bx, "y": by });
linelist.push({ "x": rline[j].x2, "y": rline[j].y });
svg.push("<line x1=\"" + bx + "\" y1=\"" + rline[j].y + "\" x2=\"" + rline[j].x2 + "\" y2=\"" + rline[j].y + "\" stroke=\"" + lcolor + "\" stroke-width=\"1\" data-line=\"" + i + "\"/>");
bx = rline[j].x2;
} else if (rline[j].x2 == bx && by > rline[j].y - 1) {
linelist.push({ "x": bx, "y": by });
linelist.push({ "x": rline[j].x1, "y": rline[j].y });
svg.push("<line x1=\"" + rline[j].x1 + "\" y1=\"" + rline[j].y + "\" x2=\"" + bx + "\" y2=\"" + rline[j].y + "\" stroke=\"" + lcolor + "\" stroke-width=\"1\" data-line=\"" + i + "\"/>");
bx = rline[j].x1;
}
by = rline[j].y;
}
linelist.push({ "x": bx, "y": svgHeight });
var ix = (bx - 40) / linewidth;
document.getElementsByName("litem")[ix].style.borderColor = linecolor[i];
document.getElementsByName("litem")[ix].setAttribute("onmouseover", "LineResult(" + i + ");");
document.getElementsByName("litem")[ix].setAttribute("onmouseout", "LineResultView();");
var itemresult = document.getElementsByName("litem")[ix].value;
if (itemresult == "") {
itemresult = document.getElementsByName("litem")[ix].getAttribute("placeholder");
}
var html = [];
html.push("<p style=\"color:" + linecolor[i] + "\">" + resultusr + " → " + itemresult + "</p>");
resultuser.innerHTML += html.join('');
var bx = 0;
var by = 0;
for (var j = 0; j < linelist.length; j++) {
if (j % 2 == 0) {
svg.push("<line x1=\"" + linelist[j].x + "\" y1=\"" + linelist[j].y + "\" ");
bx = linelist[j].x;
by = linelist[j].y;
} else {
svg.push(" x2=\"" + linelist[j].x + "\" y2=\"" + linelist[j].y + "\" stroke=\"" + lcolor + "\" stroke-width=\"1\" data-line=\"" + i + "\"/>");
}
}
}
svg.push("</svg>");
ladderresult.innerHTML = svg.join('');
});
}
function XYSetting(e) {
var lb = document.getElementById("ladderboder");
var svgtop = lb.getBoundingClientRect().top;
var x = Math.floor((e.pageX + (linewidth / 2)) / linewidth) * linewidth - (linewidth / 2);
var y = e.pageY - svgtop;
if (x > 0 && x < document.getElementById("laddersvg").clientWidth - (linewidth / 2)) {
var check = false;
var cli = 0;
for (var i = 0; i < gridline.length; i++) {
if (Number(gridline[i].x) == Number(x) && Number(gridline[i].y) == Number(y)) {
check = true;
cli = i;
}
}
if (check) {
gridline.splice(cli, 1);
} else {
var chk = false;
for (var i = 0; i < gridline.length; i++) {
if (gridline[i].y == y) {
chk = true;
}
}
if (!chk) {
gridline.push({ "x": x, "y": y });
}
}
var addsvg = [];
addsvg.push("<svg onclick=\"XYSetting(event);\" id=\"laddersvg\" width=\"" + lb.clientWidth + "\" height=\"" + svgHeight + "\">");
var num = (lb.clientWidth / linewidth);
for (var i = 0; i < num; i++) {
var x = ((linewidth / 2) + (i * linewidth));
addsvg.push("<line x1=\"" + x + "\" y1=\"0\" x2=\"" + x + "\" y2=\"" + svgHeight + "\" stroke=\"#000\" stroke-width=\"1\"/>")
}
for (var i = 0; i < gridline.length; i++) {
var sx = (gridline[i].x);
var sy = gridline[i].y;
addsvg.push("<line x1=\"" + sx + "\" y1=\"" + sy + "\" x2=\"" + (sx + linewidth) + "\" y2=\"" + sy + "\" stroke=\"#000\" stroke-width=\"1\"/>")
}
addsvg.push("</svg>");
var lbs = document.getElementById("ladderboder");
lbs.innerHTML = addsvg.join('');
}
}
function LineResult(no) {
if (document.getElementById("ladderresultsvg") != undefined)
document.getElementById("ladderboder").style.opacity = 0;
var elm = document.querySelectorAll("#ladderresultsvg line");
for (var i = 0; i < elm.length; i++) {
if (elm[i].getAttribute("data-line") == no) {
elm[i].style.opacity = 1;
} else {
elm[i].style.opacity = 0;
}
}
}
function LineResultView() {
if (document.getElementById("ladderresultsvg") != undefined)
document.getElementById("ladderboder").style.opacity = 1;
var elm = document.querySelectorAll("#ladderresultsvg line");
for (var i = 0; i < elm.length; i++) {
elm[i].style.opacity = 1;
}
}
</script>
</head>
<body>
<form>
<input type="number" id="num" placeholder="참여인원" />
<a id="btn1">참여인원</a>
<a id="btn2">결과확인</a>
</form>
<div id="div1">
<ul id="ladderheader"></ul>
<div id="ladderbody">
<div id="ladderboder"></div>
<div id="ladderresult"></div>
</div>
<ul id="ladderfooter"></ul>
<div id="resultuser"></div>
</div>
</body>
</html>
