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props.nas add increment and decrement for int props

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Henning Stahlke 2020-03-27 23:17:15 +01:00 • committed by James Turner
parent f210a38011
commit b4eaa3e438
1 changed files with 27 additions and 0 deletions
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27
Nasal/props.nas
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@ -25,6 +25,8 @@ var Node = {
getName : func _getName(me._g, arg),
getIndex : func _getIndex(me._g, arg),
getType : func _getType(me._g, arg),
isNumeric : func _isNumeric(me._g, arg),
isInt : func _isInt(me._g, arg),
getAttribute : func _getAttribute(me._g, arg),
setAttribute : func _setAttribute(me._g, arg),
getValue : func _getValue(me._g, arg),
@ -80,6 +82,31 @@ var Node = {
}
return p;
},
# add n to int property, do nothing, if prop type is not int
# n will be integer and defaults to 1
increment: func(n = 1) {
if (me.isInt()) {
var v = me.getValue() + int(n);
if (me.setIntValue(v)) return v;
}
else {
logprint(DEV_ALERT, "props.increment() can be used only on integer props");
return nil;
}
},
# sub n from int property, do nothing, if prop type is not int
# n will be integer and defaults to 1
decrement: func(n = 1) {
if (me.isInt())
var v = me.getValue() - int(n);
if (me.setIntValue(v)) return v;
else {
logprint(DEV_ALERT, "props.decrement() can be used only on integer props");
return 0;
}
}
};
##