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optimised Vertices.translate

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liabru 2021-04-26 23:36:09 +01:00
parent e909b0466c
commit 792ae2ead4
1 changed files with 10 additions and 11 deletions
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21
src/geometry/Vertices.js
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@ -169,17 +169,16 @@ var Common = require('../core/Common');
* @param {number} scalar
*/
Vertices.translate = function(vertices, vector, scalar) {
var i;
if (scalar) {
for (i = 0; i < vertices.length; i++) {
vertices[i].x += vector.x * scalar;
vertices[i].y += vector.y * scalar;
}
} else {
for (i = 0; i < vertices.length; i++) {
vertices[i].x += vector.x;
vertices[i].y += vector.y;
}
scalar = typeof scalar !== 'undefined' ? scalar : 1;
var verticesLength = vertices.length,
translateX = vector.x * scalar,
translateY = vector.y * scalar,
i;
for (i = 0; i < verticesLength; i++) {
vertices[i].x += translateX;
vertices[i].y += translateY;
}
return vertices;