Handling User Input BGE

Game Engine Game Engine Support and Discussion
1

I use this to handle input
http://www.tutorialsforblender3d.com/GameModule/ClassSCA_KeyboardSensor_1.html

I’ve heard however that this method is more cpu intensive or something like that?

What are the pros and cons of doing it that way versus using sensors?

2

It is not performance eating as you would trigger the Python controller with a keyboard sensor. This means it runs ONLY when a key gets pressed or released [dependent on the sensor configuration it might be more often].

This is much more efficient than triggering a Python controller all the time (to check if a key was pressed). SImple math: it is more likely that a key status does not change than that it changes.