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Game Programming using Qt 5 Beginner's Guide - Second Edition by Lorenz Haas, Witold Wysota, Pavel Strakhov

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Time for action – Collecting coins

From Qt Creator's menu, access File — New File or Project. From Qt category, choose the JS File template. Call the collisions.js file. Put the following content into the document:

.pragma library

function boundingBox(object1) {    var cR = object1.childrenRect;    var mapped = object1.mapToItem(         object1.parent, cR.x, cR.y, cR.width, cR.height);    return Qt.rect(mapped.x, mapped.y, mapped.width, mapped.height);}function intersect(object1, object2) {    var r1 = boundingBox(object1);    var r2 = boundingBox(object2);    return (r1.x <= r2.x+r2.width && // r1.left <= r2.right            r2.x <= r1.x+r1.width && // r2.left <= r1.right            r1.y <= r2.y+r2.height && // r1.top <= r2.bottom            r2.y <= r1.y+r1.height); // r2.top <= r1.bottom} 

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