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optimised Grid._bucketAddBody

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liabru 2021-05-02 23:05:21 +01:00
parent 0af144c78b
commit 5e3c629b90
1 changed files with 9 additions and 4 deletions
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13
src/collision/Grid.js
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@ -227,8 +227,13 @@ var Common = require('../core/Common');
* @param {} body
*/
Grid._bucketAddBody = function(grid, bucket, body) {
var gridPairs = grid.pairs,
pairId = Pair.id,
bucketLength = bucket.length,
i;
// add new pairs
for (var i = 0; i < bucket.length; i++) {
for (i = 0; i < bucketLength; i++) {
var bodyB = bucket[i];
if (body.id === bodyB.id || (body.isStatic && bodyB.isStatic))
@ -236,13 +241,13 @@ var Common = require('../core/Common');
// keep track of the number of buckets the pair exists in
// important for Grid.update to work
var pairId = Pair.id(body, bodyB),
pair = grid.pairs[pairId];
var id = pairId(body, bodyB),
pair = gridPairs[id];
if (pair) {
pair[2] += 1;
} else {
grid.pairs[pairId] = [body, bodyB, 1];
gridPairs[id] = [body, bodyB, 1];
}
}