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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
* Copyright (C) 2006-2010 - Frictional Games
*
* This file is part of HPL1 Engine.
*/
#include "hpl1/engine/impl/PhysicsJointSliderNewton.h"
#include "hpl1/engine/impl/PhysicsBodyNewton.h"
#include "hpl1/engine/impl/PhysicsWorldNewton.h"
#include "common/str.h"
#include "hpl1/engine/system/low_level_system.h"
namespace hpl {
//////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
cPhysicsJointSliderNewton::cPhysicsJointSliderNewton(const tString &asName,
iPhysicsBody *apParentBody, iPhysicsBody *apChildBody,
iPhysicsWorld *apWorld, const cVector3f &avPivotPoint, const cVector3f avPinDir)
: iPhysicsJointNewton<iPhysicsJointSlider>(asName, apParentBody, apChildBody, apWorld, avPivotPoint) {
mvPin = avPinDir;
mvPin.Normalise();
const float fPivotPoint[3] = {avPivotPoint.x, avPivotPoint.y, avPivotPoint.z};
const float fPinDir[3] = {avPinDir.x, avPinDir.y, avPinDir.z};
mpNewtonJoint = NewtonConstraintCreateSlider(mpNewtonWorld, fPivotPoint, fPinDir, mpNewtonChildBody,
mpNewtonParentBody);
NewtonJointSetUserData(mpNewtonJoint, (void *)this);
NewtonSliderSetUserCallback(mpNewtonJoint, LimitCallback);
mfMaxDistance = 0;
mfMinDistance = 0;
mvPinDir = avPinDir;
mvPivotPoint = avPivotPoint;
}
//-----------------------------------------------------------------------
cPhysicsJointSliderNewton::~cPhysicsJointSliderNewton() {
}
//-----------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// PUBLIC METHODS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
void cPhysicsJointSliderNewton::SetMaxDistance(float afX) {
mfMaxDistance = afX;
// fixes a problem with the crane in level 11 (new storage room) not updating
// after the the limits have been changed, preventing it from moving
if (mpChildBody && Common::String(msName.c_str()).contains("crane"))
mpChildBody->AddImpulse({0.001f, 0.001f, 0.001f});
}
void cPhysicsJointSliderNewton::SetMinDistance(float afX) {
mfMinDistance = afX;
}
float cPhysicsJointSliderNewton::GetMaxDistance() {
return mfMaxDistance;
}
float cPhysicsJointSliderNewton::GetMinDistance() {
return mfMinDistance;
}
//-----------------------------------------------------------------------
cVector3f cPhysicsJointSliderNewton::GetVelocity() {
float fSpeed = NewtonSliderGetJointVeloc(mpNewtonJoint);
return mvPin * fSpeed;
}
cVector3f cPhysicsJointSliderNewton::GetAngularVelocity() {
return cVector3f(0, 0, 0);
}
cVector3f cPhysicsJointSliderNewton::GetForce() {
cVector3f vForce;
NewtonSliderGetJointForce(mpNewtonJoint, &vForce.x);
return vForce;
}
//-----------------------------------------------------------------------
float cPhysicsJointSliderNewton::GetDistance() {
return NewtonSliderGetJointPosit(mpNewtonJoint);
}
float cPhysicsJointSliderNewton::GetAngle() {
return 0;
}
//-----------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
// STATIC CALLBACKS
//////////////////////////////////////////////////////////////////////////
//-----------------------------------------------------------------------
unsigned cPhysicsJointSliderNewton::LimitCallback(const NewtonJoint *pSlider, NewtonHingeSliderUpdateDesc *pDesc) {
cPhysicsJointSliderNewton *pSliderJoint = (cPhysicsJointSliderNewton *)NewtonJointGetUserData(pSlider);
// pSliderJoint->OnPhysicsUpdate();
float fDistance = NewtonSliderGetJointPosit(pSlider);
// Log("Dist: %f\n",fDistance);
if (pSliderJoint->mfMinDistance == 0 && pSliderJoint->mfMaxDistance == 0)
return 0;
// Avoid oscillation
CheckLimitAutoSleep(pSliderJoint, pSliderJoint->mfMinDistance, pSliderJoint->mfMaxDistance, fDistance);
if (fDistance < pSliderJoint->mfMinDistance) {
pSliderJoint->OnMinLimit();
pDesc->m_accel = NewtonSliderCalculateStopAccel(pSlider, pDesc, pSliderJoint->mfMinDistance);
pDesc->m_minFriction = 0;
// Log("Under Min. Acc: %f Dist %f\n",pDesc->m_accel,fDistance);
return 1;
} else if (fDistance > pSliderJoint->mfMaxDistance) {
pSliderJoint->OnMaxLimit();
pDesc->m_accel = NewtonSliderCalculateStopAccel(pSlider, pDesc, pSliderJoint->mfMaxDistance);
pDesc->m_maxFriction = 0;
// Log("Over Max. Acc: %f Dist %f\n",pDesc->m_accel,fDistance);
return 1;
} else {
if (pSliderJoint->mpParentBody == NULL || pSliderJoint->mpParentBody->GetMass() == 0) {
if ((pSliderJoint->mfStickyMaxDistance != 0 &&
fabs(fDistance - pSliderJoint->mfMaxDistance) < pSliderJoint->mfStickyMaxDistance) ||
(pSliderJoint->mfStickyMinDistance != 0 &&
fabs(fDistance - pSliderJoint->mfMinDistance) < pSliderJoint->mfStickyMinDistance)) {
pSliderJoint->mpChildBody->SetAngularVelocity(0);
pSliderJoint->mpChildBody->SetLinearVelocity(0);
}
}
pSliderJoint->OnNoLimit();
}
// Log("Nothing, Dist %f\n",fDistance);
return 0;
}
//-----------------------------------------------------------------------
} // namespace hpl
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