Function GetLineToRectangle

src/geom/intersects/GetLineToRectangle.js:25–55

(line, rect, out)

 * @return {Phaser.Math.Vector2[]} An array with the points of intersection if objects intersect, otherwise an empty array.
 */
var GetLineToRectangle = function (line, rect, out)
{
    if (out === undefined) { out = []; }

    if (LineToRectangle(line, rect))
    {
        var lineA = rect.getLineA();
        var lineB = rect.getLineB();
        var lineC = rect.getLineC();
        var lineD = rect.getLineD();

        var output = [ new Vector2(), new Vector2(), new Vector2(), new Vector2() ];

        var result = [
            LineToLine(lineA, line, output[0]),
            LineToLine(lineB, line, output[1]),
            LineToLine(lineC, line, output[2]),
            LineToLine(lineD, line, output[3])
        ];

        for (var i = 0; i < 4; i++)
        {
            if (result[i])
            {
                out.push(output[i]);
            }
        }
    }

    return out;
};

module.exports = GetLineToRectangle;