Getting the position of elements on the screen

I have a game where I move a target and drop it on foils. I know where I put the foils, but I wanted to know where they are in relation to the window if the window is scrolled or resized. This isn’t exactly what I was needing, but it’s useful enough that I might need it in the future.


// Find the position of elements
function getOffset(element) {
    element = element.getBoundingClientRect();
  return {
    left: element.left + window.scrollX,
    right: element.right + window.scrollX,
    top: element.top + window.scrollY,
    bottom: element.bottom + window.scrollY
  }
}
function whereAreTheFoils() {
    // Find out where things are for initial setup and debugging
    var foil0 = document.getElementById('foil_0');
    var foil1 = document.getElementById('foil_1');
    var foil2 = document.getElementById('foil_2');
    var foil3 = document.getElementById('foil_3');
    console.log('Foil 0 is at LR ' + getOffset(foil0).left + ', ' + getOffset(foil0).right );
    console.log('Foil 0 is at TB ' + getOffset(foil0).top + ', ' + getOffset(foil0).bottom );

    console.log('Foil 1 is at ' + getOffset(foil1).left + ', ' + getOffset(foil1).top );
    console.log('Foil 2 is at ' + getOffset(foil2).left + ', ' + getOffset(foil2).top );
    console.log('Foil 3 is at ' + getOffset(foil3).left + ', ' + getOffset(foil3).top );
}

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