Add Vertical and Horizontal analog axis selection in virtual gamepad, returning -1.0 to 1.0 as values

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This will make it possible to create a vector2D from the two analogue values,  
to use as, for example, acceleration values for spaceships.

Original issue reported on code.google.com by wiebo.de.wit on 2 Dec 2009 at 9:04

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I'm going to add a new mapping called TJoystickAxisAnalogueMapping which is an 
extension of TJoystickAxisMapping. It will return the raw value of the joystick 
axis value (-1.0 to 1.0)
I will add methods to the gamepad type to add this control, both as default and 
new mappings.

Original comment by wiebo.de.wit on 29 Sep 2010 at 8:51

• Changed state: Started

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I think it might even work better if we did the following:

1 modify TJoystickAxisMapping to return the raw values.
2 add TJoystickAxisDigitalMapping and move the digital values code from 
TJoystickAxisMapping to it.

Original comment by wiebo.de.wit on 29 Sep 2010 at 9:03

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Added analog axes by defining them as direction value 2. code committed and 
virtualgamepad example changed to show the changes.

Original comment by wiebo.de.wit on 29 Sep 2010 at 1:38

• Changed state: Done

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Original comment by wiebo.de.wit on 29 Sep 2010 at 1:40

• Changed state: Fixed