Game Development Reference
In-Depth Information
Listing 8-6. GUILabel.cs: Class for Rendering Text on Screen Using the GUI Framework
01 using UnityEngine;
02 using System.Collections;
03 [ExecuteInEditMode]
04 public class GUILabel : MonoBehaviour
05 {
06 //Content for label
07
public GUIContent LabelData;
08
09 //Style for label
10
public GUIStyle LabelStyle;
11
12 //Rect for label
13
public Rect LabelRegion;
14
15 //Draw label
16 void OnGUI()
17 {
18 Rect FinalRect = new Rect(LabelRegion.x * Screen.width, LabelRegion.y *
Screen.height, LabelRegion.width * Screen.width, LabelRegion.height * Screen.height);
19
20
GUI.Label(FinalRect, LabelData, LabelStyle);
21 }
22 }
Lines 07, 10, and 13.
The public members
LabelData
,
LabelStyle
, and
LabelRegion
have been added to define the contents of a label (what it will say),
its style (how it will look), and its positional data (where it will appear on the
screen). These properties will all be accessible and customizable through the
Object Inspector when a Label component is added to an object.
Line 20.
The
GUI.Label
function is called on the
OnGUI
event to render the label
text to the screen with specified content, style, and size.
Note
More information on the GUI classes can be found in the online Unity documentation at
We'll need the label class to display the ammo count and Player health status. For this reason,
let's add two label components to the root GUI object in the scene, by dragging and dropping the
GUILabel
class onto the GUI object. Once added, configure each label through its
Label Data
,
Label
Style
and
Label Region
values in the Object Inspector (see Figure
8-13
). For Label Data, the text
should be set to
Health
for the health label and to
Ammo
for the ammo label. For both labels, the
text color should be
White
. For the Label Style object, the Font Size should be
20
. And for the Label
Region, the position of the health label is rendered at
(0.01, 0.01)
, and the ammo label at
(0.9, 0.01)
.
Notice the positions for each label are specified in
screen relative coordinates
.
