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Lazy library instantiation

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This commit is contained in:
Caspian Rychlik-Prince 2003-09-16 15:39:46 +00:00
parent f67cd0e384
commit 00616de78b
3 changed files with 37 additions and 19 deletions
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27
src/java/org/lwjgl/input/Mouse.java
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@ -83,9 +83,8 @@ public class Mouse {
private static String[] buttonName;
private static final Map buttonMap = new HashMap(16);
static {
initialize();
}
/** Lazy initialization */
private static boolean initialized;
/**
* Mouse cannot be constructed.
@ -190,6 +189,8 @@ public class Mouse {
buttonName[i] = "BUTTON" + i;
buttonMap.put(buttonName[i], new Integer(i));
}
initialized = true;
}
/**
@ -203,17 +204,20 @@ public class Mouse {
* @throws Exception if the mouse could not be created for any reason
*/
public static void create() throws Exception {
if (created)
if (!initialized) {
initialize();
}
if (created) {
return;
if (!nCreate())
}
if (!nCreate()) {
throw new Exception("The mouse could not be created.");
}
created = true;
currentCursor = null;
//set mouse buttons
// set mouse buttons
buttons = new boolean[buttonCount];
}
/**
@ -271,7 +275,10 @@ public class Mouse {
*/
public static boolean isButtonDown(int button) {
assert created : "The mouse has not been created.";
return buttons[button];
if (button >= buttonCount)
return false;
else
return buttons[button];
}
/**
@ -280,7 +287,7 @@ public class Mouse {
* @return a String with the button's human readable name in it or null if the button is unnamed
*/
public static String getButtonName(int button) {
if (button < 0 || button >= buttonName.length)
if (button >= buttonName.length)
return null;
else
return buttonName[button];