add/remove properties

Game Engine Game Engine Support and Discussion
1

Hey!

is it possible to add/remove a property from an object in real time? for example I don’t want a ray sensor to work if an object is obstructing your view

also, is it possible to probram the ray sensor that comes off of the “mouse over” sensor to use x-ray? that would be great!

thanks for your help!

2

Hey!

Instead of worrying about adding and removing the property, why not have a new boolean property (named “clearview” or something) that must be True for the ray sensor to do whatever it’s doing?

3

For the mouseray thing, I just get the hit position and plug that and the camera position into rayCast()- since the ray can be set to use that vector but cast at any length you want, it works out fine and you get plenty of control.

4

the easiest way would be to setup bool props, then just tweak in python, ie:

own.variable = ‘true’
blah = own.variable
own.ray = ‘1’
blah2 = own.ray

if blah == ‘true’:
action
if tooclosetowall.isPositive and blah = ‘true’:
own.variable = ‘false’

5

Best is to use the Python “del” statement, like this:


del object['property']

or, in a full example:


cont = GameLogic.getCurrentController()

if 'prop' in cont.owner:
	del cont.owner['prop']