69 lines
2.0 KiB
JavaScript
69 lines
2.0 KiB
JavaScript
/* @flow */
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//this script just copies chunks from one redis to another
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import redis from 'redis';
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import bluebird from 'bluebird';
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bluebird.promisifyAll(redis.RedisClient.prototype);
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bluebird.promisifyAll(redis.Multi.prototype);
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import {
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TILE_SIZE,
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THREE_TILE_SIZE,
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} from '../src/core/constants';
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//ATTENTION Make suer to set the rdis URLs right!!!
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const oldurl = "redis://localhost:6380";
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const oldredis = redis.createClient(oldurl, { return_buffers: true });
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const newurl = "redis://localhost:6379";
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const newredis = redis.createClient(newurl, { return_buffers: true });
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const CANVAS_SIZE = 1024;
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const OUR_TILE_SIZE = THREE_TILE_SIZE;
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const CHUNKS_XY = CANVAS_SIZE / OUR_TILE_SIZE;
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async function copyChunks() {
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for (let x = 0; x < CHUNKS_XY; x++) {
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for (let y = 0; y < CHUNKS_XY; y++) {
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const oldkey = `ch:2:${x}:${y}`;
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const newkey = `ch:2:${x}:${y}`;
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const chunk = await oldredis.getAsync(oldkey);
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if (chunk) {
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const setNXArgs = [newkey, chunk];
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await newredis.sendCommandAsync('SET', setNXArgs);
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console.log("Created Chunk ", newkey);
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}
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}
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}
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}
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function chunkOfCord(cor) {
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return Math.floor((cor + CANVAS_SIZE / 2) / OUR_TILE_SIZE);
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}
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async function copyChunksByCoords(xMin, xMax, yMin, yMax) {
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const chunkXMin = chunkOfCord(xMin);
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const chunkXMax = chunkOfCord(xMax);
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const chunkYMin = chunkOfCord(yMin);
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const chunkYMax = chunkOfCord(yMax);
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for (let x = chunkXMin; x <= chunkXMax; x++) {
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for (let y = chunkYMin; y <= chunkYMax; y++) {
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const oldkey = `ch:2:${x}:${y}`;
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const newkey = `ch:2:${x}:${y}`;
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const chunk = await oldredis.getAsync(oldkey);
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if (chunk) {
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const setNXArgs = [newkey, chunk];
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await newredis.sendCommandAsync('SET', setNXArgs);
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console.log("Created Chunk ", newkey);
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} else {
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await newredis.delAsync(newkey);
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console.log("Deleted Chunk ", newkey);
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}
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}
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}
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}
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module.exports = copyChunksByCoords;
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// copyChunksByCoords(-160, 60, -60, 160);
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