GameMaker:Studio Settings for Html5

The HTML5 tab in the Global Game Settings is split into two separate sub-tabs (accessible on the left of the window) to make changing and updating the information for your game clearer and less complicated. These tabs are explained in the following sections.

General

GGS_-_HTML5.png

At the top of the window you can set the File options for your HTML5 game, which includes:

- adding a custom index.html to use instead of the pre-defined one that GameMaker: Studio generates by default. This can be very useful if you have a website design implemented or want to include certain features in all your HTML5 builds.
- choose a Loading Bar Extension. This should have been added in as an extension to the GameMaker: Studio resource tree (there is a demo of this included with the program) and will override the standard loading bar when selected.
- set the title that will be shown on the browser.
- select a new name for the folder where your HTML5 game files will be stored (default is "html5game").
- select a new name for the output HTML file. the default is "index.html", but you may wish to change this to "<gamename>.html" for example.

You also have the further options to send all debug output to the JS console of your browser, and to prepend the *.js output with any extra JavaScript necessary for your game. For example, a Chrome Store app may require that you add window.localStorage = undefined; to the output JS, for which you would use this option.

Once that is done you will need to give your game a favicon and a Splash Screen. The icon should be authored as an *.ico file and can be 16x16, 32x32, 48x48, or 64x64 pixels in size, and 8-bit, 24-bit, or 32-bit in color depth. The splash screen should be the size of the canvas that is going to hold your game and will override any loading bars if you tick the Use Splash Screen option (ie: you can have a loading bar, OR a splash screen, but not both). Smaller or larger images are permitted but will be scaled to fit.

Graphics

GGS_-_HTML5_AGAIN.png

Here you can change the following details related to how your game will be displayed (note that not all browsers will display your game in the same way, so test these options on as many browsers as possible to make sure that they have the desired effect).

Allow Switching To Fullscreen - Checking this will allow the user to toggle the game from windowed to fullscreen mode using <CNTRL> + <CMD> + <F>.
Interpolate Colors Between Pixels - Turns on interpolation, which basically "smooths" pixels. for crisp pixel graphics, it should be off, but if you have nice alpha blends and smoothed edge graphics it is better left on.
Center The Game In The Browser - Checking this will automatically center the game screen within the browser running the game.
Use built-in particle sprites - Disabling this will stop Studio bundling-in the small particle sprites we generate for use with the DND particle actions and code functions. If you do not use the particle functionality in Studio (or you always supply your own images), then disabling this will save a small amount of file space in your output package and therefore a little bandwidth.
WebGL - Choose whether to switch off WebGL support, make it optional (auto-detect), or make it a requirement for your game. It should be noted that to test performance under all circumstances, you should have this as disabled, then normally set it to auto-detect for publishing. Making it a requirement may reduce considerably the compatibility that your game has with different browser types.
Scaling - Your game can be configured to scale the draw canvas automatically to maintain the aspect ratio within the browser, or you can select to have it stretch to fit. The stretch to fit option will not full screen the game in the browser, but rather stretch what is drawn to fit the canvas size, as defined by the first room of the game

Finally there is the option to set the size of the Texture Page. The default (and most compatible) size is 2048x2048, but you can choose from anywhere between 256x256 up to a whopping 8192x8192! There is also a button marked View which will generate the texture pages for this platform and then open a window so that you can see how they look. This can be very useful if you wish to see how the texture pages are structured and to prevent having texture pages larger (or smaller) than necessary.

NOTE : Be aware that the larger the size of the texture page, the less compatible your game will be.

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