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Capturing Relative Accelerometer Tilt

/ Published in: JavaScript
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  1. function sample()
  2. {
  3.   vmax = latest.x + 0.25;			
  4.   vmin = latest.x - 0.25;			
  5.   vrange = 0.50;	
  6.  
  7.   hmax = latest.y + 0.25;			
  8.   hmin = latest.y - 0.25;			
  9.   hrange = 0.50;
  10. }
  11.  
  12. function move()
  13. {
  14.   var hposition = 0;
  15.   var vposition = 0;
  16.  
  17.   vposition = ( ( ( latest.x - vmin ) / vrange ) * BRICKS_SPACE ) + BRICKS_MAXIMUM;
  18.   hposition = ( ( latest.y - hmin ) / hrange ) * LEGS_SPACE;		
  19.  
  20.   // Keep in bounds
  21.   if( vposition > BRICKS_MAXIMUM )
  22.   {
  23.     vposition = BRICKS_MAXIMUM;
  24.   } else if( vposition < BRICKS_MINIMUM ) {
  25.     vposition = BRICKS_MINIMUM;
  26.   } 
  27.  
  28.   if( hposition < LEGS_MINIMUM )
  29.   {
  30.     hposition = LEGS_MINIMUM;
  31.   } else if( hposition > LEGS_MAXIMUM ) {
  32.     hposition = LEGS_MAXIMUM;
  33.   } 		
  34.  
  35.   $( '#background' ).css( 'top', vposition );	
  36.   $( '#legs' ).css( 'left', hposition );		
  37. }

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