ppfun/pixelplanet
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prepare to make TILE_ZOOM_LEVEL actually change

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This commit is contained in:
HF 2022-06-27 10:53:16 +02:00
parent d3e6010e07
commit 8ccbcddb59
2 changed files with 27 additions and 22 deletions
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47
src/core/Tile.js
View File

@ -47,36 +47,41 @@ function deleteSubtilefromTile(
}
}
/*
* adds an RGB tile as a shrunken tile to another
* @param subtilesInTile width of a subtile compared to the tile (power of 2)
* @param cell subtile coordinates [dx, dy]
* @param inpTile input tile
* @param tile output tile
*/
function addShrunkenSubtileToTile(
subtilesInTile,
cell,
subtile,
buffer,
inpTile,
tile,
) {
const tileSize = TILE_SIZE;
const [dx, dy] = cell;
const offset = (dx + dy * subtilesInTile * tileSize / 4) * tileSize / 4;
const target = tileSize / 4;
let tr;
let tg;
let tb;
let pos;
let tmp;
const linePad = (tileSize * 3 - 1) * 3;
const target = tileSize / subtilesInTile;
const offset = (dx + dy * tileSize) * target;
let posA = 0;
let posB;
const pxlPad = (subtilesInTile - 1) * 3;
const linePad = (tileSize * (subtilesInTile - 1) - 1) * 3;
for (let row = 0; row < target; row += 1) {
let channelOffset = (offset + row * target * subtilesInTile) * 3;
let channelOffset = (offset + row * tileSize) * 3;
const max = channelOffset + target * 3;
pos = row * tileSize * 12;
while (channelOffset < max) {
tr = subtile[pos++];
tg = subtile[pos++];
tb = subtile[pos++];
pos += 9;
tmp = pos + linePad;
buffer[channelOffset++] = (subtile[tmp++] + tr) / 2;
buffer[channelOffset++] = (subtile[tmp++] + tg) / 2;
buffer[channelOffset++] = (subtile[tmp++] + tb) / 2;
const tr = inpTile[posA++];
const tg = inpTile[posA++];
const tb = inpTile[posA++];
posA += pxlPad;
posB = posA + linePad;
tile[channelOffset++] = (inpTile[posB++] + tr) >>> 1;
tile[channelOffset++] = (inpTile[posB++] + tg) >>> 1;
tile[channelOffset++] = (inpTile[posB] + tb) >>> 1;
}
posA = posB + 1;
}
}
@ -476,7 +481,7 @@ export async function createTexture(
// dont create textures larger than 4096
const targetSize = Math.min(canvasSize, 4096);
const amount = targetSize / TILE_SIZE;
const zoom = Math.log2(amount) / 2;
const zoom = Math.log2(amount) * 2 / TILE_ZOOM_LEVEL;
const textureBuffer = new Uint8Array(targetSize * targetSize * 3);
const startTime = Date.now();

2
src/socket/SocketServer.js
View File

@ -368,7 +368,7 @@ class SocketServer {
let client = it.next();
while (!client.done) {
const ws = client.value;
if (ws.readyState === WebSocket.OPEN
if (ws.readyState === WebSocket.OPEN
&& ws.user
) {
const canvasId = ws.canvasId || 0;