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Code Issues Wiki Activity

Optimized out unused constraints

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Brice Chevalier 2018-01-31 19:41:04 +09:00
parent e794694f5a
commit edc7c03dab
1 changed files with 16 additions and 11 deletions
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27
src/core/Engine.js
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@ -135,7 +135,8 @@ var Body = require('../body/Body');
// get lists of all bodies and constraints, no matter what composites they are in
var allBodies = Composite.allBodies(world),
allConstraints = Composite.allConstraints(world);
allConstraints = Composite.allConstraints(world),
hasConstraints = allConstraints.length > 0;
// @if DEBUG
// reset metrics logging
@ -152,12 +153,14 @@ var Body = require('../body/Body');
// update all body position and rotation by integration
Engine._bodiesUpdate(allBodies, delta, timing.timeScale, correction, world.bounds);
// update all constraints (first pass)
Constraint.preSolveAll(allBodies);
for (i = 0; i < engine.constraintIterations; i++) {
Constraint.solveAll(allConstraints, timing.timeScale);
if (hasConstraints) {
// update all constraints (first pass)
Constraint.preSolveAll(allBodies);
for (i = 0; i < engine.constraintIterations; i++) {
Constraint.solveAll(allConstraints, timing.timeScale);
}
Constraint.postSolveAll(allBodies, true);
}
Constraint.postSolveAll(allBodies, true);
// broadphase pass: find potential collision pairs
if (broadphase.controller) {
@ -192,12 +195,14 @@ var Body = require('../body/Body');
}
Resolver.postSolvePosition(allBodies);
// update all constraints (second pass)
Constraint.preSolveAll(allBodies);
for (i = 0; i < engine.constraintIterations; i++) {
Constraint.solveAll(allConstraints, timing.timeScale);
if (hasConstraints) {
// update all constraints (second pass)
Constraint.preSolveAll(allBodies);
for (i = 0; i < engine.constraintIterations; i++) {
Constraint.solveAll(allConstraints, timing.timeScale);
}
Constraint.postSolveAll(allBodies);
}
Constraint.postSolveAll(allBodies);
// iteratively resolve velocity between collisions
Resolver.preSolveVelocity(pairs.list);