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Update Point.js

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This commit is contained in:
Lewis Lane 2014-03-31 16:03:18 +01:00
parent 14b16fb583
commit 1d1e47d68d
1 changed files with 6 additions and 4 deletions
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10
src/geom/Point.js
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@ -470,20 +470,22 @@ Phaser.Point.centroid = function (points, out) {
throw new Error("Phaser.Point. Parameter 'points' must be an array")
}
if (points.length < 1) {
var pointslength = points.length;
if (pointslength < 1) {
throw new Error("Phaser.Point. Parameter 'points' array must not be empty")
}
if (points.length === 1) {
if (pointslength === 1) {
out.copyFrom(points[0]);
return out;
}
for (var i = 0; i < points.length; i++) {
for (var i = 0; i < pointslength; i++) {
Phaser.Point.add(out, points[i], out);
}
out.divide(points.length, points.length);
out.divide(pointslength, pointslength);
return out;
};