Game Development Reference
In-Depth Information
•
backgroundColor
: This is the global background color tint.
•
depth
: This is the depth order for the current
GUI
script. This is useful if you
have GUI elements in more than one script and want to layer them.
•
matrix
: The 3D transformation matrix for the current GUI.
All of these elements can be used to override all controls or individual controls by
setting them in between controls.
Layout controls
If you prefer not to hand draw the position of every single control in your GUI,
Unity does offer some automatic layout controls from the
GUILayout
class.
The Layout controls (using GUILayout instead of just GUI) have the same set of
controls as the normal
GUI
class (hence I'm not going to describe them all over
again), the main difference is that you do not need to specify a
Rect
area to draw
the control, as it will just be drawn at the first suitable location; any further controls
added will be laid out appropriately with enough spacing between the controls.
You can also control the spacing and even if you want, any empty space between the
controls using the
Width
,
Height
, and
Spacing
properties (Space/FlexibleSpace) of
GUILayout
, following the same rules as for
GUI
controls (setting up the
GUILayout
before drawing a control).
If you don't want the layout to take up the maximum space for a control,
you also have the settings for Width (MaxWidth/MinWidth) and Height
(MaxHeight/MinHeight).
The main differences are as follows:
• BeginGroup becomes BeginArea
• Horizontal and vertical groups (sub groups)
BeginArea
Instead of defining
Groups
, you define
Areas
. Apart from the name, they behave
exactly the same. This is the only layout control that takes a
Rect
parameter to
specify where you want to draw the controls (excluding Windows of course); all
GUILayout
controls are then aligned to
Area
in the same way they are in
Group
.
It's recommended that when using
GUILayout
controls that you
place them in an Area for the best effect.
