myfreevur.blogg.se - Unity initial d game download

If the patch files are available, return the list of patch files from the requested version to the current one.

If there are not patch files, return failure and fallback to Full update.

Ask the server for the patch notes starting from the client version.

You would keep them around because a client may fall behind more than one update.

Since this is on the server, both the last and the old version are available for comparison, so you can create the patch files. You need to have precomputed, on the server, the patches from the old versions to the current one (e.g. Note: you can do this decision file per file. Corrupted Copy, New Version: Potential Full update.

Corrupted Copy, No new version: Repair.Good Copy, No new version: Nothing to do.Depending on those two variables, you pick: In addition, there may or may not be a newer version. Now, you have either a good or a corrupted copy. Check the integrity of the files with the provided checksums.The server returns the checksums for that version, and whatever or not there is a new version.You need to start by separating the concept of updating from the concept of repairing. How would I display a progress bar in unity showing the rsync progression ?.Is that useful and is it ok to put ALL my assets in bundles ? Maybe rsync can be useful, but is it safe if hundreds of clients are simultaneously updating using rsync ?.But how can I compare two folders if one of them is distant, without downloading it all before ?Ĭould torrent be an answer ? How are game/unity devs doing this ? I heard about VCDIFF / xdelta, apparently they can be useful to get a "delta patch" of different binaries. So I'm now looking for a way do download only the different parts. But unity assets are compressed into large files, so even a simple change will lead to the download of a 2gb file. My first idea was : If a file checksum is different, download that file. Now here's the difficult part : Downloading the required files. So comparing the game version is easy : I just parse a version.txt file and compare it's value to the latest server version.Ĭhecking file integrity sounds easy too : Make a list of all files in the game folder, order the list, get a checksum and check if it corresponds. I want it to have the following features : Compare game version to latest version and update if necessaryĬheck files integrity and update if differences are found I'm making a launcher for my game (using Unit圓d).