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preserve pair.contacts order

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liabru 2024-03-03 21:50:40 +00:00
parent 89963f77a0
commit e891d37b65
1 changed files with 12 additions and 20 deletions
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32
src/collision/Pair.js
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@ -74,29 +74,21 @@ var Contact = require('./Contact');
pair.contactCount = supportCount;
collision.pair = pair;
var support = supports[0],
contact = contacts[0];
var supportA = supports[0],
contactA = contacts[0],
supportB = supports[1],
contactB = contacts[1];
// reset first contact if support changed
if (contact.vertex !== support) {
contact.vertex = support;
contact.normalImpulse = 0;
contact.tangentImpulse = 0;
// match contacts to supports
if (contactB.vertex === supportA || contactA.vertex === supportB) {
contacts[1] = contactA;
contacts[0] = contactA = contactB;
contactB = contacts[1];
}
if (supportCount < 2) {
return;
}
support = supports[1];
contact = contacts[1];
// reset second contact if support changed
if (contact.vertex !== support) {
contact.vertex = support;
contact.normalImpulse = 0;
contact.tangentImpulse = 0;
}
// update contacts
contactA.vertex = supportA;
contactB.vertex = supportB;
};
/**