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added Bounds.translate and Bounds.shift

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liabru 2014-05-01 13:38:56 +01:00
parent 77168e5faf
commit 38c541363a
1 changed files with 29 additions and 0 deletions
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29
src/geometry/Bounds.js
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@ -85,5 +85,34 @@ var Bounds = {};
return (boundsA.min.x <= boundsB.max.x && boundsA.max.x >= boundsB.min.x
&& boundsA.max.y >= boundsB.min.y && boundsA.min.y <= boundsB.max.y);
};
/**
* Translates the bounds by the given vector
* @method translate
* @param {bounds} bounds
* @param {vector} vector
*/
Bounds.translate = function(bounds, vector) {
bounds.min.x += vector.x;
bounds.max.x += vector.x;
bounds.min.y += vector.y;
bounds.max.y += vector.y;
};
/**
* Shifts the bounds to the given position
* @method shift
* @param {bounds} bounds
* @param {vector} position
*/
Bounds.shift = function(bounds, position) {
var deltaX = bounds.max.x - bounds.min.x,
deltaY = bounds.max.y - bounds.min.y;
bounds.min.x = position.x;
bounds.max.x = position.x + deltaX;
bounds.min.y = position.y;
bounds.max.y = position.y + deltaY;
};
})();