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Small optimizations

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This commit is contained in:
Daniel Chappuis 2020-10-14 20:41:05 +02:00
parent 8c7a709ebe
commit fcf7def577
1 changed files with 14 additions and 9 deletions
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23
src/engine/PhysicsWorld.cpp
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@ -766,11 +766,12 @@ void PhysicsWorld::createIslands() {
assert(mProcessContactPairsOrderIslands.size() == 0); assert(mProcessContactPairsOrderIslands.size() == 0);
// Reset all the isAlreadyInIsland variables of bodies and joints // Reset all the isAlreadyInIsland variables of bodies and joints
for (uint b=0; b < mRigidBodyComponents.getNbComponents(); b++) { const uint32 nbRigidBodyComponents = mRigidBodyComponents.getNbComponents();
for (uint b=0; b < nbRigidBodyComponents; b++) {
mRigidBodyComponents.mIsAlreadyInIsland[b] = false; mRigidBodyComponents.mIsAlreadyInIsland[b] = false;
} }
for (uint32 i=0; i < mJointsComponents.getNbComponents(); i++) { const uint32 nbJointsComponents = mJointsComponents.getNbComponents();
for (uint32 i=0; i < nbJointsComponents; i++) {
mJointsComponents.mIsAlreadyInIsland[i] = false; mJointsComponents.mIsAlreadyInIsland[i] = false;
} }
@ -876,14 +877,16 @@ void PhysicsWorld::createIslands() {
const uint32 nbBodyJoints = joints.size(); const uint32 nbBodyJoints = joints.size();
for (uint32 i=0; i < nbBodyJoints; i++) { for (uint32 i=0; i < nbBodyJoints; i++) {
const uint32 jointComponentIndex = mJointsComponents.getEntityIndex(joints[i]);
// Check if the current joint has already been added into an island // Check if the current joint has already been added into an island
if (mJointsComponents.getIsAlreadyInIsland(joints[i])) continue; if (mJointsComponents.mIsAlreadyInIsland[jointComponentIndex]) continue;
// Add the joint into the island // Add the joint into the island
mJointsComponents.setIsAlreadyInIsland(joints[i], true); mJointsComponents.mIsAlreadyInIsland[jointComponentIndex] = true;
const Entity body1Entity = mJointsComponents.getBody1Entity(joints[i]); const Entity body1Entity = mJointsComponents.mBody1Entities[jointComponentIndex];
const Entity body2Entity = mJointsComponents.getBody2Entity(joints[i]); const Entity body2Entity = mJointsComponents.mBody2Entities[jointComponentIndex];
const Entity otherBodyEntity = body1Entity == bodyToVisitEntity ? body2Entity : body1Entity; const Entity otherBodyEntity = body1Entity == bodyToVisitEntity ? body2Entity : body1Entity;
const uint32 otherBodyIndex = mRigidBodyComponents.getEntityIndex(otherBodyEntity); const uint32 otherBodyIndex = mRigidBodyComponents.getEntityIndex(otherBodyEntity);
@ -910,7 +913,8 @@ void PhysicsWorld::createIslands() {
} }
// Clear the associated contacts pairs of rigid bodies // Clear the associated contacts pairs of rigid bodies
for (uint b=0; b < mRigidBodyComponents.getNbEnabledComponents(); b++) { const uint32 nbRigidBodyEnabledComponents = mRigidBodyComponents.getNbEnabledComponents();
for (uint b=0; b < nbRigidBodyEnabledComponents; b++) {
mRigidBodyComponents.mContactPairs[b].clear(); mRigidBodyComponents.mContactPairs[b].clear();
} }
} }
@ -926,7 +930,8 @@ void PhysicsWorld::updateSleepingBodies(decimal timeStep) {
const decimal sleepAngularVelocitySquare = mSleepAngularVelocity * mSleepAngularVelocity; const decimal sleepAngularVelocitySquare = mSleepAngularVelocity * mSleepAngularVelocity;
// For each island of the world // For each island of the world
for (uint i=0; i<mIslands.getNbIslands(); i++) { const uint32 nbIslands = mIslands.getNbIslands();
for (uint i=0; i < nbIslands; i++) {
decimal minSleepTime = DECIMAL_LARGEST; decimal minSleepTime = DECIMAL_LARGEST;