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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi"
/>
<title>Lineage II Map</title>
<link rel="shortcut icon" href="https://www.lineage2.com/images/global/favicon.png" />
<style>
body {
padding: 0;
margin: 0;
height: 100%;
max-height: 100%;
overflow: hidden;
}
.slidecontainer {
width: 100%;
position: absolute;
bottom: 15px;
}
.slider {
-webkit-appearance: none;
width: 95%;
height: 2px;
display: block;
background: #d3d3d3;
outline: none;
margin: 10px auto;
-webkit-transition: 0.2s;
transition: opacity 0.2s;
}
.slider::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 25px;
height: 25px;
border-radius: 50%;
background: #333;
cursor: pointer;
}
.slider::-moz-range-thumb {
width: 10px;
height: 25px;
border-radius: 5%;
background: #333;
cursor: pointer;
}
#mapcontainer {
position: relative;
width: 100vw;
height: 100vh;
padding: 0;
margin: 0;
}
#map {
width: 100vw;
}
.creature {
position: absolute;
width: 5px;
height: 5px;
}
.creature.player {
border: 2px solid red;
}
.creature.npc {
border: 2px solid yellow;
}
.creature.selected {
border: 2px solid #8785db;
}
#pagetitle {
position: absolute;
top: 10px;
left: 10px;
color: black;
display: block;
font-family: -apple-system, "BlinkMacSystemFont", "Segoe UI", "Helvetica", "Arial", sans-serif,
"Apple Color Emoji", "Segoe UI Emoji";
text-rendering: optimizeLegibility;
}
.logo {
display: block;
background: url("./logo.png") no-repeat;
background-size: contain;
height: 22vw;
width: 77vw;
max-width: 350px;
max-height: 100px;
}
#info {
position: absolute;
right: 0;
bottom: 2.6rem;
display: block;
min-width: 16rem;
background-color: rgba(70, 70, 70, 0.5);
color: gold;
padding: 0.5rem;
margin: 0 1rem;
font-size: 0.825rem;
}
#info dl {
display: grid;
grid-template-columns: 40% auto;
margin: 0;
}
#info dt {
grid-column: 1;
}
#info dd {
grid-column: 2;
text-align: right;
}
@media screen and (max-device-width: 380px) {
#info {
width: calc(100vw - 3rem);
}
}
</style>
</head>
<body>
<div id="mapcontainer" class="mapcontainer">
<canvas id="map" alt="map"></canvas>
<div id="npc_layer"></div>
<span id="pagetitle">
<div class="logo"></div>
</span>
<div class="slidecontainer">
<input type="range" min="1" max="100" value="25" step="0.2" class="slider" id="slider" />
</div>
<div id="player" class="creature player"></div>
<div id="info"></div>
</div>
<script>
let userX = 83120,
userY = 148600,
npcList = [];
const BLOCKSIZE = 32768,
BLOCKPX = 900,
BLOCKLIMITS = {
X: { min: 16, max: 26, mid: 20 },
Y: { min: 10, max: 25, mid: 18 },
};
const WorldToBlockNum = (n) => n / BLOCKSIZE,
WorldToPic = (n, zoom = 1) => {
let mod = WorldToBlockNum(n) % 1;
if (mod < 0) mod += 1;
return mod * BLOCKPX * zoom;
};
const slider = document.getElementById("slider"),
container = document.getElementById("mapcontainer"),
map = document.getElementById("map"),
ctx = map.getContext("2d"),
player = document.getElementById("player"),
npc_layer = document.getElementById("npc_layer");
cachedTiles = new Array(BLOCKLIMITS.X.max + 1)
.fill(undefined)
.map(() => new Array(BLOCKLIMITS.Y.max + 1).fill(undefined));
const Info = function _() {
return `
<dl>
${(_.state.hasOwnProperty("sw") && `<dt>Screen Width</dt><dd>${_.state.sw}</dd>`) || ""}
${(_.state.hasOwnProperty("sh") && `<dt>Screen Height</dt><dd>${_.state.sh}</dd>`) || ""}
${(_.state.hasOwnProperty("oo") && `<dt>Orientation</dt><dd>${_.state.oo}</dd>`) || ""}
${(_.state.hasOwnProperty("tx") && `<dt>Tile X</dt><dd>${_.state.tx}</dd>`) || ""}
${(_.state.hasOwnProperty("ty") && `<dt>Tile Y</dt><dd>${_.state.ty}</dd>`) || ""}
${(_.state.hasOwnProperty("ux") && `<dt>Player X pos</dt><dd>${_.state.ux}</dd>`) || ""}
${(_.state.hasOwnProperty("uy") && `<dt>Player Y pos</dt><dd>${_.state.uy}</dd>`) || ""}
${(_.state.hasOwnProperty("zoom") && `<dt>Zoom</dt><dd>${_.state.zoom}</dd>`) || ""}
${(_.state.hasOwnProperty("vt") && `<dt>Visible Tiles</dt><dd>${_.state.vt}</dd>`) || ""}
${(_.state.hasOwnProperty("vn") && `<dt>Visible NPCs</dt><dd>${_.state.vn}</dd>`) || ""}
${(_.state.hasOwnProperty("npcName") && `<dt>NPC Name</dt><dd>${_.state.npcName}</dd>`) || ""}
${(_.state.hasOwnProperty("npcX") && `<dt>NPC X pos</dt><dd>${_.state.npcX}</dd>`) || ""}
${(_.state.hasOwnProperty("npcY") && `<dt>NPC Y pos</dt><dd>${_.state.npcY}</dd>`) || ""}
</dl>
`;
};
Info.state = {};
Info.render = () => {
document.getElementById("info").innerHTML = Info();
};
Info.setState = (newState) => {
Info.state = Object.assign(Info.state, newState);
Info.render();
};
Info.render();
let zoom = 1;
const redraw = () => {
if (userX > BLOCKSIZE * (BLOCKLIMITS.X.max - BLOCKLIMITS.X.mid + 1)) {
userX = BLOCKSIZE * (BLOCKLIMITS.X.max - BLOCKLIMITS.X.mid + 1);
}
if (userX < BLOCKSIZE * (BLOCKLIMITS.X.min - BLOCKLIMITS.X.mid)) {
userX = BLOCKSIZE * (BLOCKLIMITS.X.min - BLOCKLIMITS.X.mid);
}
if (userY > BLOCKSIZE * (BLOCKLIMITS.Y.max - BLOCKLIMITS.Y.mid + 1)) {
userY = BLOCKSIZE * (BLOCKLIMITS.Y.max - BLOCKLIMITS.Y.mid + 1);
}
if (userY < BLOCKSIZE * (BLOCKLIMITS.Y.min - BLOCKLIMITS.Y.mid)) {
userY = BLOCKSIZE * (BLOCKLIMITS.Y.min - BLOCKLIMITS.Y.mid);
}
Info.setState({
sw: window.screen.width,
sh: window.screen.height,
oo: Math.abs(window.orientation) - 90 == 0 ? "Landscape" : "Portrait",
ux: Math.round(userX),
uy: Math.round(userY),
});
// Clear canvas
ctx.clearRect(0, 0, map.width, map.height);
zoom = (slider.value * 10) / slider.max;
const rect = container.getBoundingClientRect();
map.width = rect.width;
map.height = rect.height;
const offsetX = WorldToPic(userX, zoom),
offsetY = WorldToPic(userY, zoom),
halfWidth = rect.width / 2,
halfHeight = rect.height / 2,
realWidth = BLOCKPX * zoom,
realHeight = BLOCKPX * zoom,
tileX = Math.floor(WorldToBlockNum(userX)) + BLOCKLIMITS.X.mid,
tileY = Math.floor(WorldToBlockNum(userY)) + BLOCKLIMITS.Y.mid;
Info.setState({ tx: tileX, ty: tileY, zoom: zoom.toPrecision(4) });
// Position the player in the center
player.style.top = `${halfHeight - player.style.width / 2}px`;
player.style.left = `${halfWidth - player.style.height / 2}px`;
let tilesCount = 0;
// Draw the visible map grid
for (
let i = tileX - Math.ceil((halfWidth + offsetX) / realWidth);
i <= tileX + Math.ceil((halfWidth - offsetX) / realWidth) + 1;
i++
) {
for (
let j = tileY - Math.ceil((halfHeight - offsetY) / realHeight);
j <= tileY + Math.ceil((halfHeight + offsetY) / realHeight) - 1;
j++
) {
if (i >= BLOCKLIMITS.X.min && i <= BLOCKLIMITS.X.max && j >= BLOCKLIMITS.Y.min && j <= BLOCKLIMITS.Y.max) {
tilesCount++;
if (typeof cachedTiles[i][j] === "object" && null !== cachedTiles[i][j] && cachedTiles[i][j].complete) {
// Tile is already in the cache (memory)
ctx.drawImage(
cachedTiles[i][j],
halfWidth - offsetX - realWidth * (tileX - i),
halfHeight - offsetY - realHeight * (tileY - j),
realWidth,
realHeight
);
} else {
// Load the background image
const img = new Image();
img.src = `./Maps/${i}_${j}.jpg`;
img.onload = function () {
cachedTiles[i][j] = img;
ctx.drawImage(
cachedTiles[i][j],
halfWidth - offsetX - realWidth * (tileX - i),
halfHeight - offsetY - realHeight * (tileY - j),
realWidth,
realHeight
);
};
img.onerror = function () {
// cachedTiles[i][j] = null;
img.src = "https://dummyimage.com/900x900/ffffff/dddddd.png&text=No+map+image";
};
}
}
}
}
Info.setState({ vt: tilesCount });
// Draw NPCs.
const visibleCoords = {
top: userY - (halfHeight * (BLOCKSIZE / BLOCKPX)) / zoom,
left: userX - (halfWidth * (BLOCKSIZE / BLOCKPX)) / zoom,
right: userX + (halfWidth * (BLOCKSIZE / BLOCKPX)) / zoom,
bottom: userY + (halfHeight * (BLOCKSIZE / BLOCKPX)) / zoom,
};
npc_layer.innerHTML = ""; // clean-up the NPC layer
// We do not want to render NPC that are not visible on screen
const visibleNpcList = npcList.filter(
(npc) =>
npc.xpos >= visibleCoords.left &&
npc.xpos <= visibleCoords.right &&
npc.ypos >= visibleCoords.top &&
npc.ypos <= visibleCoords.bottom
);
Info.setState({ vn: visibleNpcList.length });
visibleNpcList.forEach((npc) => {
const npcOffsetX = ((userX - npc.xpos) / (BLOCKSIZE / BLOCKPX)) * zoom,
npcOffsetY = ((userY - npc.ypos) / (BLOCKSIZE / BLOCKPX)) * zoom;
const npcDom = document.createElement("div");
npcDom.className = "creature npc";
npcDom.title = npc.name;
npc_layer.appendChild(npcDom);
npcDom.addEventListener("click", (e) => {
e.stopPropagation();
e.target.style.borderColor = "lightblue";
Info.setState({ npcName: npc.name, npcX: npc.xpos, npcY: npc.ypos });
});
npcDom.style.left = `${halfWidth - npcOffsetX - npcDom.style.width / 2}px`;
npcDom.style.top = `${halfHeight - npcOffsetY - npcDom.style.height / 2}px`;
});
};
fetch("./npcs.json")
.then(function (response) {
if (response.status !== 200) {
console.log("Looks like there was a problem. Status Code: " + response.status);
return;
}
// Examine the text in the response
response.json().then(function (data) {
npcList = data;
redraw();
});
})
.catch(function (err) {
console.log("Fetch Error :-S", err);
});
map.onclick = (e) => {
zoom = (slider.value * 10) / slider.max;
const rect = e.target.getBoundingClientRect(),
mouseX = e.clientX - rect.left,
mouseY = e.clientY - rect.top,
halfWidth = rect.width / 2,
halfHeight = rect.height / 2;
userX += ((mouseX - halfWidth) * (BLOCKSIZE / BLOCKPX)) / zoom;
userY += ((mouseY - halfHeight) * (BLOCKSIZE / BLOCKPX)) / zoom;
redraw();
};
function onContainerMouseWheel(event) {
event = event ? event : window.event;
slider.value -= event.detail ? event.detail * -1 : event.wheelDelta / 100;
redraw();
}
slider.oninput = redraw;
window.addEventListener("load", redraw);
window.addEventListener("resize", redraw);
window.addEventListener("orientationchange", redraw);
window.addEventListener("mousewheel", onContainerMouseWheel);
window.addEventListener("DOMMouseScroll", onContainerMouseWheel);
let hypo = undefined;
window.addEventListener(
"touchmove",
function (event) {
let touches = event.targetTouches;
/*
touches = [
{ pageX: touches[0].pageX, pageY: touches[0].pageY },
{ pageX: 0, pageY: 0 },
];*/
if (touches.length === 2) {
let hypo1 = Math.hypot(touches[0].pageX - touches[1].pageX, touches[0].pageY - touches[1].pageY);
if (hypo === undefined) {
hypo = hypo1;
}
slider.value *= hypo1 / hypo;
redraw();
}
},
false
);
window.addEventListener(
"touchend",
function (event) {
hypo = undefined;
redraw();
},
false
);
</script>
</body>
</html>