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Fix build without FIX_BUGS, divide to 0 fixes

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This commit is contained in:
erorcun 2021-01-13 14:22:31 +03:00
commit 57201187de
6 changed files with 53 additions and 13 deletions
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37
src/entities/Physical.cpp
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@ -783,9 +783,13 @@ CPhysical::ApplyCollision(CPhysical *B, CColPoint &colpoint, float &impulseA, fl
if(B->GetStatus() == STATUS_PLAYER)
pointposB *= 0.8f;
if(CWorld::bNoMoreCollisionTorque){
// BUG: the game actually uses A here, but this can't be right
#ifdef FIX_BUGS
B->ApplyFrictionMoveForce(fB*-0.3f);
B->ApplyFrictionTurnForce(fB*-0.3f, pointposB);
#else
A->ApplyFrictionMoveForce(fB*-0.3f);
A->ApplyFrictionTurnForce(fB*-0.3f, pointposB);
#endif
}
}
if(!A->bInfiniteMass){
@ -881,7 +885,13 @@ CPhysical::ApplyFriction(CPhysical *B, float adhesiveLimit, CColPoint &colpoint)
fOtherSpeedA = vOtherSpeedA.Magnitude();
fOtherSpeedB = vOtherSpeedB.Magnitude();
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeedA;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeedA * (1.0f/fOtherSpeedA);
#endif
speedSum = (B->m_fMass*fOtherSpeedB + A->m_fMass*fOtherSpeedA)/(B->m_fMass + A->m_fMass);
if(fOtherSpeedA > speedSum){
impulseA = (speedSum - fOtherSpeedA) * A->m_fMass;
@ -911,7 +921,12 @@ CPhysical::ApplyFriction(CPhysical *B, float adhesiveLimit, CColPoint &colpoint)
fOtherSpeedA = vOtherSpeedA.Magnitude();
fOtherSpeedB = vOtherSpeedB.Magnitude();
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeedA;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeedA * (1.0f/fOtherSpeedA);
#endif
float massB = B->GetMass(pointposB, frictionDir);
speedSum = (massB*fOtherSpeedB + A->m_fMass*fOtherSpeedA)/(massB + A->m_fMass);
if(fOtherSpeedA > speedSum){
@ -939,7 +954,12 @@ CPhysical::ApplyFriction(CPhysical *B, float adhesiveLimit, CColPoint &colpoint)
fOtherSpeedA = vOtherSpeedA.Magnitude();
fOtherSpeedB = vOtherSpeedB.Magnitude();
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeedA;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeedA * (1.0f/fOtherSpeedA);
#endif
float massA = A->GetMass(pointposA, frictionDir);
speedSum = (B->m_fMass*fOtherSpeedB + massA*fOtherSpeedA)/(B->m_fMass + massA);
if(fOtherSpeedA > speedSum){
@ -967,7 +987,12 @@ CPhysical::ApplyFriction(CPhysical *B, float adhesiveLimit, CColPoint &colpoint)
fOtherSpeedA = vOtherSpeedA.Magnitude();
fOtherSpeedB = vOtherSpeedB.Magnitude();
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeedA;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeedA * (1.0f/fOtherSpeedA);
#endif
float massA = A->GetMass(pointposA, frictionDir);
float massB = B->GetMass(pointposB, frictionDir);
speedSum = (massB*fOtherSpeedB + massA*fOtherSpeedA)/(massB + massA);
@ -1004,7 +1029,12 @@ CPhysical::ApplyFriction(float adhesiveLimit, CColPoint &colpoint)
fOtherSpeed = vOtherSpeed.Magnitude();
if(fOtherSpeed > 0.0f){
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeed;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeed * (1.0f/fOtherSpeed);
#endif
// not really impulse but speed
// maybe use ApplyFrictionMoveForce instead?
fImpulse = -fOtherSpeed;
@ -1022,7 +1052,12 @@ CPhysical::ApplyFriction(float adhesiveLimit, CColPoint &colpoint)
fOtherSpeed = vOtherSpeed.Magnitude();
if(fOtherSpeed > 0.0f){
#ifdef FIX_BUGS // division by 0
frictionDir = vOtherSpeed;
frictionDir.Normalise();
#else
frictionDir = vOtherSpeed * (1.0f/fOtherSpeed);
#endif
fImpulse = -fOtherSpeed * m_fMass;
impulseLimit = adhesiveLimit*CTimer::GetTimeStep() * 1.5;
if(fImpulse < -impulseLimit) fImpulse = -impulseLimit;