add readme and change some scripts

scripts/fix_tiles.js

@@ -1,34 +0,0 @@
-import GameCommon from '../common/GameCommon.js'
-import { logger } from '../common/Util.js'
-import GameStorage from '../server/GameStorage.js'
-
-const log = logger('fix_tiles.js')
-
-function fix_tiles(gameId) {
-  GameStorage.loadGame(gameId)
-  let changed = false
-  const tiles = GameCommon.getTilesSortedByZIndex(gameId)
-  for (let tile of tiles) {
-    if (tile.owner === -1) {
-      const p = GameCommon.getFinalTilePos(gameId, tile.idx)
-      if (p.x === tile.pos.x && p.y === tile.pos.y) {
-        // log.log('all good', tile.pos)
-      } else {
-        log.log('bad tile pos', tile.pos, 'should be: ', p)
-        tile.pos = p
-        GameCommon.setTile(gameId, tile.idx, tile)
-        changed = true
-      }
-    } else if (tile.owner !== 0) {
-      tile.owner = 0
-      log.log('unowning tile', tile.idx)
-      GameCommon.setTile(gameId, tile.idx, tile)
-      changed = true
-    }
-  }
-  if (changed) {
-    GameStorage.persistGame(gameId)
-  }
-}
-
-fix_tiles(process.argv[2])