[#18840] Joystick sensor lag

if(SDL_PollEvent(&sdl_event)) // if -> while fixed it
removed 'm_buttonnum' was misleading, wasn't used as you expect.

Added gravity to variable to world to be used by collada.

source/gameengine/GameLogic/Joystick/SCA_Joystick.h

@@ -44,6 +44,7 @@ class SCA_Joystick
 
 {
 	static SCA_Joystick *m_instance[JOYINDEX_MAX];
+	static int m_joynum;
 	static int m_refCount;
 
 	class PrivateData;
@@ -67,11 +68,6 @@ class SCA_Joystick
 	 */
 	int 			m_prec;
 
-	/* 
-	 *	button values stored here 
-	 */
-	int 			m_buttonnum;
-
 	/*
 	 * max # of buttons avail
 	*/
@@ -146,7 +142,6 @@ public:
 	bool aAxisIsPositive(int axis_single); /* check a single axis only */
 
 	bool aAnyButtonPressIsPositive(void);
-	bool aAnyButtonReleaseIsPositive(void);
 	bool aButtonPressIsPositive(int button);
 	bool aButtonReleaseIsPositive(int button);
 	bool aHatIsPositive(int hatnum, int dir);
@@ -160,10 +155,6 @@ public:
 	int GetAxisPosition(int index){
 		return m_axis_array[index];
 	}
-	
-	int GetButton(void){
-		return m_buttonnum;
-	}
 
 	int GetHat(int index){
 		return m_hat_array[index];