Diff: Gamepad/Gamepad.cpp

Revision:

12:3952ba0683c7

Parent:

5:3c9407e2fe55

--- a/Gamepad/Gamepad.cpp	Tue Apr 17 08:00:08 2018 +0000
+++ b/Gamepad/Gamepad.cpp	Mon May 06 06:09:02 2019 +0000
@@ -149,11 +149,11 @@
     }
 }
 
-// this method gets the magnitude of the joystick movement
-float Gamepad::get_mag()
+// this method gets the varanitude of the joystick movement
+float Gamepad::get_vara()
 {
     Polar p = get_polar();
-    return p.mag;
+    return p.vara;
 }
 
 // this method gets the angle of joystick movement (0 to 360, 0 North)
@@ -316,7 +316,7 @@
     float x = coord.y;
     float y = coord.x;
 
-    float mag = sqrt(x*x+y*y);  // pythagoras
+    float vara = sqrt(x*x+y*y);  // pythagoras
     float angle = RAD2DEG*atan2(y,x);
     // angle will be in range -180 to 180, so add 360 to negative angles to
     // move to 0 to 360 range
@@ -327,15 +327,15 @@
     // the noise on the ADC causes the values of x and y to fluctuate slightly
     // around the centred values. This causes the random angle values to get
     // calculated when the joystick is centred and untouched. This is also when
-    // the magnitude is very small, so we can check for a small magnitude and then
+    // the varanitude is very small, so we can check for a small varanitude and then
     // set the angle to -1. This will inform us when the angle is invalid and the
     // joystick is centred
 
-    if (mag < TOL) {
-        mag = 0.0f;
+    if (vara < TOL) {
+        vara = 0.0f;
         angle = -1.0f;
     }
 
-    Polar p = {mag,angle};
+    Polar p = {vara,angle};
     return p;
 }
\ No newline at end of file