shithub: choc

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Add a joystick dead zone for joysticks that don't have them.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 924

--- a/src/i_joystick.c

+++ b/src/i_joystick.c

@@ -37,6 +37,11 @@

 #include "d_main.h"

 #include "i_joystick.h"

+// When an axis is within the dead zone, it is set to zero.

+// This is 5% of the full range:

+

+#define DEAD_ZONE (32768 / 20)

+

 static SDL_Joystick *joystick = NULL;

 // Configuration variables:

@@ -156,6 +161,11 @@

     if (invert)

     {

         result = -result;

+    }

+

+    if (result < DEAD_ZONE && result > -DEAD_ZONE)

+    {

+        result = 0;

     }

     return result;