Apple solved this problem after iOS 7 by introducing bolder / thicker font weights and getting rid of most of the “light

If we were to try and fit the same “scrolling height” onto these phones, then we’d end up with some unused space which is not optimal. Obviously it’s a bit exaggerated here, as some of these phones have different aspect ratios — it just means to show a general principle.

The weight of game logic, even with the AI of creatures working, is negligible. Running the game without painting takes 0.1 ms or less. Therefore, we will no longer discuss the logic of the game in this article.

Note: the Chrome FPS Meter does not measure performance of a game that runs inside an iframe tag. If the rest of the page is static, the tool tells that no frame was dropped; doesn’t matter how bad can be the performance of the iframed game.

The current version of the Chrome FPS Meter features a very important advance. It tells how many frames are dropped (not printed on screen). And shows the percentage of the recent printed frames over all recent produced frames. The maximum value it shows is 99% even when all the frames are printed.

We can see that the average time needed to execute the painting (which is the bottleneck) is 1.7 ms. Much lower than the strict limit of 3 ms that we chose. The worst case was 2.3 ms, also bellow the 3 ms! Excellent!!!

We could imagine an alternative, cheap repainting system for when the avatar is still. But its a bad idea for 2 reasons. First, it does not help when avatar walks (the game must be performant 100% of the time). Second, this system would be very hard to implement due to the intricated overlapping of the volume elements (creatures, walls, speaks, missiles, trees, etc..), mainly the moving ones, each with its own shape and size.

Sometimes the fights are so bad that my partner sleeps on the couch downstairs. Sometimes I do. It’s rare but it definitely happens. Sometimes we don’t talk for days. Sometimes I feel like giving up, breaking up, and throwing it all away.

There were some arguments that “people don’t scroll”, which in modern times sounds a little bit silly (given the fact that we scroll 300meters on average every single day).

So we believe in our Javascript code or in the Chrome FPS Meter? We can believe both. And more than believe them, believe in the experience we have playing the game: is it smooth or not?

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about selling a product — not about getting thousands of likes from other designers. A very fresh example — using 3D illustrations (because everyone does that now!) won’t necessarily guarantee you lots of sales. It can even work quite the opposite.

The fold is a pretty old concept of an invisible line that separates what we normally see on one screen (without scrolling) and the rest of the design. The notion is that all the most important elements should be “above the fold” for easier access.

My guess: with our tests written in JavaScript we test the performance INSIDE the V8 runtime. But there is more job outside the V8 runtime, like interact with the video graphics card. This can only be measured with the Chrome PFS Meter. It seems the video card is unable to process everything it receives.

When the avatar walks, his whole environment must be displaced on canvas (since he is always painted in center of canvas). Therefore we must repaint the whole canvas every loop. This is an expensive operation.

We only need to check what the Chrome FPS Meter says. Oh no! It says that 50% of the frames are being dropped!!! It is like paints one frame and drops the next, paints one frame and drops the next… It is bad!!! And we are not sure if the frame dropping is so regular or it is like paints 1, drops 4, paints 2, drops 1, paints 3, drops 1…

But it may impact some e-commerce projects where it was carefully created to fit as much relevant information AND a BUY NOW button on one screen. Sure, we can create an overlay button, but that doesn’t solve the problem of cutting out information on specific phones.