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aglorithm optimization of Pairs.update method

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This commit is contained in:
Brice Chevalier 2017-11-20 11:52:44 +09:00
parent 0895d81fa1
commit b44fcf3f82
2 changed files with 7 additions and 2 deletions
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1
src/collision/Pair.js
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@ -33,6 +33,7 @@ var Contact = require('./Contact');
activeContacts: [], activeContacts: [],
separation: 0, separation: 0,
isActive: true, isActive: true,
confirmedActive: true,
isSensor: bodyA.isSensor || bodyB.isSensor, isSensor: bodyA.isSensor || bodyB.isSensor,
timeCreated: timestamp, timeCreated: timestamp,
timeUpdated: timestamp, timeUpdated: timestamp,

8
src/collision/Pairs.js
View file

@ -55,12 +55,15 @@ var Common = require('../core/Common');
collisionEnd.length = 0; collisionEnd.length = 0;
collisionActive.length = 0; collisionActive.length = 0;
for (i = 0; i < pairsList.length; i++) {
pairsList[i].confirmedActive = false;
}
for (i = 0; i < collisions.length; i++) { for (i = 0; i < collisions.length; i++) {
collision = collisions[i]; collision = collisions[i];
if (collision.collided) { if (collision.collided) {
pairId = Pair.id(collision.bodyA, collision.bodyB); pairId = Pair.id(collision.bodyA, collision.bodyB);
activePairIds.push(pairId);
pair = pairsTable[pairId]; pair = pairsTable[pairId];
@ -76,6 +79,7 @@ var Common = require('../core/Common');
// update the pair // update the pair
Pair.update(pair, collision, timestamp); Pair.update(pair, collision, timestamp);
pair.confirmedActive = true;
} else { } else {
// pair did not exist, create a new pair // pair did not exist, create a new pair
pair = Pair.create(collision, timestamp); pair = Pair.create(collision, timestamp);
@ -91,7 +95,7 @@ var Common = require('../core/Common');
// deactivate previously active pairs that are now inactive // deactivate previously active pairs that are now inactive
for (i = 0; i < pairsList.length; i++) { for (i = 0; i < pairsList.length; i++) {
pair = pairsList[i]; pair = pairsList[i];
if (pair.isActive && Common.indexOf(activePairIds, pair.id) === -1) { if (!pair.confirmedActive) {
Pair.setActive(pair, false, timestamp); Pair.setActive(pair, false, timestamp);
collisionEnd.push(pair); collisionEnd.push(pair);
} }