diff options
| -rw-r--r-- | src/vehicles/HandlingMgr.h | 2 | ||||
| -rw-r--r-- | src/vehicles/Vehicle.cpp | 198 | ||||
| -rw-r--r-- | src/vehicles/Vehicle.h | 6 |
3 files changed, 158 insertions, 48 deletions
diff --git a/src/vehicles/HandlingMgr.h b/src/vehicles/HandlingMgr.h index 958e2351..2627fbae 100644 --- a/src/vehicles/HandlingMgr.h +++ b/src/vehicles/HandlingMgr.h @@ -119,7 +119,9 @@ VALIDATE_SIZE(tHandlingData, 0xD8); class cHandlingDataMgr { float field_0; // unused it seems +public: float field_4; // wheel related +private: float field_8; // float field_C; // unused it seems float field_10; // diff --git a/src/vehicles/Vehicle.cpp b/src/vehicles/Vehicle.cpp index c541bae5..13e02566 100644 --- a/src/vehicles/Vehicle.cpp +++ b/src/vehicles/Vehicle.cpp @@ -131,6 +131,47 @@ CVehicle::~CVehicle() } void +CVehicle::SetModelIndex(uint32 id) +{ + CEntity::SetModelIndex(id); + m_aExtras[0] = CVehicleModelInfo::ms_compsUsed[0]; + m_aExtras[1] = CVehicleModelInfo::ms_compsUsed[1]; + m_nNumMaxPassengers = CVehicleModelInfo::GetMaximumNumberOfPassengersFromNumberOfDoors(id); +} + +bool +CVehicle::SetupLighting(void) +{ + ActivateDirectional(); + SetAmbientColoursForPedsCarsAndObjects(); + + if(bRenderScorched){ + WorldReplaceNormalLightsWithScorched(Scene.world, 0.1f); + }else{ + CVector coors = GetPosition(); + float lighting = CPointLights::GenerateLightsAffectingObject(&coors); + if(!bHasBlip && lighting != 1.0f){ + SetAmbientAndDirectionalColours(lighting); + return true; + } + } + + return false; +} + +void +CVehicle::RemoveLighting(bool reset) +{ + CRenderer::RemoveVehiclePedLights(this, reset); +} + +float +CVehicle::GetHeightAboveRoad(void) +{ + return -1.0f * GetColModel()->boundingBox.min.z; +} + +void CVehicle::FlyingControl(eFlightModel flightModel) { switch(flightModel){ @@ -192,47 +233,127 @@ CVehicle::FlyingControl(eFlightModel flightModel) } void -CVehicle::SetModelIndex(uint32 id) +CVehicle::ProcessWheel(CVector &wheelFwd, CVector &wheelRight, CVector &wheelContactSpeed, CVector &wheelContactPoint, + int32 wheelsOnGround, float thrust, float brake, float adhesion, int8 wheelId, float *wheelSpeed, tWheelState *wheelState, uint16 wheelStatus) { - CEntity::SetModelIndex(id); - m_aExtras[0] = CVehicleModelInfo::ms_compsUsed[0]; - m_aExtras[1] = CVehicleModelInfo::ms_compsUsed[1]; - m_nNumMaxPassengers = CVehicleModelInfo::GetMaximumNumberOfPassengersFromNumberOfDoors(id); -} + // BUG: using statics here is probably a bad idea + static bool bAlreadySkidding = false; // this is never reset + static bool bBraking; + static bool bDriving; + + // how much force we want to apply in these axes + float fwd = 0.0f; + float right = 0.0f; + + bBraking = brake != 0.0f; + if(bBraking) + thrust = 0.0f; + bDriving = thrust != 0.0f; + + float contactSpeedFwd = DotProduct(wheelContactSpeed, wheelFwd); + float contactSpeedRight = DotProduct(wheelContactSpeed, wheelRight); + + if(*wheelState != WHEEL_STATE_0) + bAlreadySkidding = true; + *wheelState = WHEEL_STATE_0; + + adhesion *= CTimer::GetTimeStep(); + if(bAlreadySkidding) + adhesion *= m_handling->fTractionLoss; + + // moving sideways + if(contactSpeedRight != 0.0f){ + // exert opposing force + right = -contactSpeedRight/wheelsOnGround; + + if(wheelStatus == WHEEL_STATUS_BURST){ + float fwdspeed = min(contactSpeedFwd, 0.3f); + right += fwdspeed * CGeneral::GetRandomNumberInRange(-0.1f, 0.1f); + } + } -bool -CVehicle::SetupLighting(void) -{ - ActivateDirectional(); - SetAmbientColoursForPedsCarsAndObjects(); + if(bDriving){ + fwd = thrust; - if(bRenderScorched){ - WorldReplaceNormalLightsWithScorched(Scene.world, 0.1f); - }else{ - CVector coors = GetPosition(); - float lighting = CPointLights::GenerateLightsAffectingObject(&coors); - if(!bHasBlip && lighting != 1.0f){ - SetAmbientAndDirectionalColours(lighting); - return true; + // limit sideways force (why?) + if(right > 0.0f){ + if(right > adhesion) + right = adhesion; + }else{ + if(right < -adhesion) + right = -adhesion; + } + }else if(contactSpeedFwd != 0.0f){ + fwd = -contactSpeedFwd/wheelsOnGround; + + if(!bBraking){ + if(m_fGasPedal < 0.01f){ + if(GetModelIndex() == MI_RCBANDIT) + brake = 0.2f * mod_HandlingManager.field_4 / m_fMass; + else + brake = mod_HandlingManager.field_4 / m_fMass; + } + } + + if(brake > adhesion){ + if(fabs(contactSpeedFwd) > 0.005f) + *wheelState = WHEEL_STATE_STATIC; + }else { + if(fwd > 0.0f){ + if(fwd > brake) + fwd = brake; + }else{ + if(fwd < -brake) + fwd = -brake; + } } } - return false; -} + if(sq(adhesion) < sq(right) + sq(fwd)){ + if(*wheelState != WHEEL_STATE_STATIC){ + if(bDriving && contactSpeedFwd < 0.2f) + *wheelState = WHEEL_STATE_1; + else + *wheelState = WHEEL_STATE_2; + } -void -CVehicle::RemoveLighting(bool reset) -{ - CRenderer::RemoveVehiclePedLights(this, reset); + float l = sqrt(sq(right) + sq(fwd)); + float tractionLoss = bAlreadySkidding ? 1.0f : m_handling->fTractionLoss; + right *= adhesion * tractionLoss / l; + fwd *= adhesion * tractionLoss / l; + } + + if(fwd != 0.0f || right != 0.0f){ + CVector direction = fwd*wheelFwd + right*wheelRight; + float speed = direction.Magnitude(); + direction.Normalise(); + + float impulse = speed*m_fMass; + float turnImpulse = speed*GetMass(wheelContactPoint, direction); + + ApplyMoveForce(impulse * direction); + ApplyTurnForce(turnImpulse * direction, wheelContactPoint); + } } float -CVehicle::GetHeightAboveRoad(void) +CVehicle::ProcessWheelRotation(tWheelState state, const CVector &fwd, const CVector &speed, float radius) { - return -1.0f * GetColModel()->boundingBox.min.z; + float angularVelocity; + switch(state){ + case WHEEL_STATE_1: + angularVelocity = -1.1f; // constant speed forward + break; + case WHEEL_STATE_STATIC: + angularVelocity = 0.0f; // not moving + break; + default: + angularVelocity = -DotProduct(fwd, speed) / radius; // forward speed + break; + } + return angularVelocity * CTimer::GetTimeStep(); } - void CVehicle::ExtinguishCarFire(void) { @@ -269,24 +390,6 @@ CVehicle::ProcessDelayedExplosion(void) } } -float -CVehicle::ProcessWheelRotation(tWheelState state, const CVector &fwd, const CVector &speed, float radius) -{ - float angularVelocity; - switch(state){ - case WHEEL_STATE_1: - angularVelocity = -1.1f; // constant speed forward - break; - case WHEEL_STATE_3: - angularVelocity = 0.0f; // not moving - break; - default: - angularVelocity = -DotProduct(fwd, speed) / radius; // forward speed - break; - } - return angularVelocity * CTimer::GetTimeStep(); -} - bool CVehicle::IsLawEnforcementVehicle(void) { @@ -669,9 +772,10 @@ STARTPATCHES InjectHook(0x417E60, &CVehicle_::GetHeightAboveRoad_, PATCH_JUMP); InjectHook(0x552BB0, &CVehicle::FlyingControl, PATCH_JUMP); + InjectHook(0x5512E0, &CVehicle::ProcessWheel, PATCH_JUMP); + InjectHook(0x551280, &CVehicle::ProcessWheelRotation, PATCH_JUMP); InjectHook(0x552AF0, &CVehicle::ExtinguishCarFire, PATCH_JUMP); InjectHook(0x551C90, &CVehicle::ProcessDelayedExplosion, PATCH_JUMP); - InjectHook(0x551280, &CVehicle::ProcessWheelRotation, PATCH_JUMP); InjectHook(0x552880, &CVehicle::IsLawEnforcementVehicle, PATCH_JUMP); InjectHook(0x552820, &CVehicle::ChangeLawEnforcerState, PATCH_JUMP); InjectHook(0x552200, &CVehicle::UsesSiren, PATCH_JUMP); diff --git a/src/vehicles/Vehicle.h b/src/vehicles/Vehicle.h index 76ea76cb..c293b8a6 100644 --- a/src/vehicles/Vehicle.h +++ b/src/vehicles/Vehicle.h @@ -106,8 +106,10 @@ enum enum tWheelState { + WHEEL_STATE_0 = 0, WHEEL_STATE_1 = 1, // constant velocity - WHEEL_STATE_3 = 3, // not moving + WHEEL_STATE_2 = 2, // normal + WHEEL_STATE_STATIC = 3, // not moving }; enum eFlightModel @@ -249,6 +251,8 @@ public: bool IsPlane(void) { return m_vehType == VEHICLE_TYPE_PLANE; } void FlyingControl(eFlightModel flightModel); + void ProcessWheel(CVector &wheelFwd, CVector &wheelRight, CVector &wheelContactSpeed, CVector &wheelContactPoint, + int32 wheelsOnGround, float thrust, float brake, float adhesion, int8 wheelId, float *wheelSpeed, tWheelState *wheelState, uint16 wheelStatus); void ExtinguishCarFire(void); void ProcessDelayedExplosion(void); float ProcessWheelRotation(tWheelState state, const CVector &fwd, const CVector &speed, float radius); |