Supporting a Wide Range of Devices - Marmalade SDK Mobile Game Development Essentials - page 237

The build styles project
This is a very simple example demonstrating the use of build styles, resource
templates, and deployment types. It is based on the Graphics2D example from
Chapter 2 , Resource Management and 2D Graphics Rendering .
The resbuildstyles.itx file defines a build style called highres that specifies a
prefix directory called data-highres . If you look inside the data directory, you will
see that the jar of the marmalade image in data\images\textures\marmalade.png
is 256 x 256 pixels in size. A new directory for the highres build style has also been
added, containing a 512 x 512 version of this image. This file is called data\data-
highres\images\textures\marmalade.png .
If you now look at the app.icf file, you will see the new entry
ResBuildStyle=highres . If you run the program with this line in place, the 512 x
512 version of the image will be loaded. Comment out or remove this line, and the
256 x 256 image will be loaded.
The restemplates.itx file shows a simple example of a resource template that
will force the images to be converted into RGBA4444 format and also disables
mipmapping. This resource template is used in the data\images\images.group ile
to reduce the size of the images.group.bin file as no mipmap images need to be
stored in it.
Finally, the BuildStyles.mkb file declares two deployment types called normal and
highres . When making an install package using the Marmalade System Deployment
Tool , we can select either of these options to include the low or high resolution images.
Note that the deployment tool will also list the default deployment type as this is
always defined automatically by the deployment tool. Using the default type will not
include any resources and so will not work on the device.
The Skiing project
For this chapter the Skiing project has been updated to use build styles, resource
templates, and deployment types. It also makes use of Derbh archives to reduce the
size of the install package.
In this instance the build styles system has been used to allow a larger size of font to
be used on devices with a higher screen resolution. The data\data-highres\ui\
fonts directory contains alternative versions of the font files skiing.gxfont and
skiing.tga that will be loaded when the highres build style has been selected in
the app.icf file.