A reimplementation of Mario Kart Wii's physics engine in C++
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Kinoko::Field::ObjectCowHerd Class Referencefinal

#include <ObjectCow.hh>

Description

The manager class that controls a group of cows.

The herd is led by the ObjectCowLeader. ObjectCowFollower cows share the same rail as the leader cow but have fluctuations in their position. This class also handles collision checks amongst the cows to make sure that they never walk through each other.

Definition at line 150 of file ObjectCow.hh.

Inheritance diagram for Kinoko::Field::ObjectCowHerd:

Public Member Functions

 ObjectCowHerd (const System::MapdataGeoObj &params)
void init () override
 Assigns the herd's rail to each child.
void calc () override
u32 loadFlags () const override
void createCollision () override
void loadRail () override
Public Member Functions inherited from Kinoko::Field::ObjectCollidable
 ObjectCollidable (const System::MapdataGeoObj &params)
 ObjectCollidable (const char *name, const EGG::Vector3f &pos, const EGG::Vector3f &rot, const EGG::Vector3f &scale)
void load () override
void calcCollisionTransform () override
f32 getCollisionRadius () const override
 Finds the radius that fits fully in a BoxColUnit.
virtual void loadAABB (f32 maxSpeed)
virtual void loadAABB (f32 radius, f32 maxSpeed)
virtual void processKartReactions (Kart::KartObject *kartObj, Kart::Reaction &reactionOnKart, Kart::Reaction &reactionOnObj)
virtual Kart::Reaction onCollision (Kart::KartObject *, Kart::Reaction reactionOnKart, Kart::Reaction, EGG::Vector3f &)
virtual void onWallCollision (Kart::KartObject *, const EGG::Vector3f &)
virtual void onObjectCollision (Kart::KartObject *)
virtual bool checkCollision (ObjectCollisionBase *lhs, EGG::Vector3f &dist)
virtual const EGG::Vector3f & getCollisionTranslation () const
virtual ObjectCollisionBase * collision () const
Public Member Functions inherited from Kinoko::Field::ObjectBase
 ObjectBase (const System::MapdataGeoObj &params)
 ObjectBase (const char *name, const EGG::Vector3f &pos, const EGG::Vector3f &rot, const EGG::Vector3f &scale)
virtual void calcModel ()
virtual const char * getResources () const
virtual void loadGraphics ()
virtual void loadAnims ()
virtual const char * getName () const
virtual const char * getKclName () const
virtual void resize (f32 radius, f32 maxSpeed)
virtual void unregisterCollision ()
virtual void disableCollision () const
virtual void enableCollision () const
virtual const BoxColUnit * getUnit () const
const RailInterpolator * railInterpolator () const
virtual const EGG::Vector3f & getPosition () const
virtual ObjectId id () const
void setPos (const EGG::Vector3f &pos)
void addPos (const EGG::Vector3f &v)
void subPos (const EGG::Vector3f &v)
void setScale (const EGG::Vector3f &scale)
void setScale (f32 scale)
void setRot (const EGG::Vector3f &rot)
void setRotNoFlag (const EGG::Vector3f &rot)
void addRot (const EGG::Vector3f &v)
void subRot (const EGG::Vector3f &v)
void setTransform (const EGG::Matrix34f &mat)
const EGG::Vector3f & pos () const
const EGG::Vector3f & scale () const
const EGG::Vector3f & rot () const
const EGG::Matrix34f & transform () const

Private Member Functions

void checkIntraCollision ()
 Prevents cows from walking into each other.

Private Attributes

ObjectCowLeader * m_leader
owning_span< ObjectCowFollower * > m_followers

Additional Inherited Members

Public Types inherited from Kinoko::Field::ObjectBase
enum class  eFlags {
  Position = 0 ,
  Rotation = 1 ,
  Matrix = 2 ,
  Scale = 3
}
typedef EGG::TBitFlag< u16, eFlags > Flags
Protected Member Functions inherited from Kinoko::Field::ObjectCollidable
virtual const EGG::Vector3f & collisionCenter () const
void registerManagedObject ()
Protected Member Functions inherited from Kinoko::Field::ObjectBase
void calcTransform ()
void calcRotLock ()
void linkAnims (const std::span< const char * > &names, const std::span< Render::AnmType > types)
void setMatrixTangentTo (const EGG::Vector3f &up, const EGG::Vector3f &tangent)
void setMatrixFromOrthonormalBasisAndPos (const EGG::Vector3f &v)
Static Protected Member Functions inherited from Kinoko::Field::ObjectBase
static f32 CheckPointAgainstLineSegment (const EGG::Vector3f &point, const EGG::Vector3f &a, const EGG::Vector3f &b)
 Calculates on what side of line segment ab point lies.
static EGG::Vector3f RotateXZByYaw (f32 angle, const EGG::Vector3f &v)
 Rotates a vector around the Y-axis and returns the XZ-plane portion of the vector.
static EGG::Vector3f RotateAxisAngle (f32 angle, const EGG::Vector3f &axis, const EGG::Vector3f &v1)
static void SetRotTangentHorizontal (EGG::Matrix34f &mat, const EGG::Vector3f &up, const EGG::Vector3f &tangent)
static EGG::Matrix34f OrthonormalBasis (const EGG::Vector3f &v)
static EGG::Matrix34f RailOrthonormalBasis (const RailInterpolator &railInterpolator)
static EGG::Vector3f AdjustVecForward (f32 sidewaysScalar, f32 forwardScalar, f32 minSpeed, const EGG::Vector3f &src, EGG::Vector3f forward)
static f32 CalcParabolicDisplacement (f32 initVel, f32 accel, u32 frame)
 Solves the standard kinematic equation \(y(t) = v_0\, t - \frac{1}{2} a t^{2}\).
static EGG::Vector3f Interpolate (f32 t, const EGG::Vector3f &v0, const EGG::Vector3f &v1)
Protected Attributes inherited from Kinoko::Field::ObjectCollidable
ObjectCollisionBase * m_collision
Protected Attributes inherited from Kinoko::Field::ObjectBase
Render::DrawMdl * m_drawMdl
Abstract::g3d::ResFile * m_resFile
ObjectId m_id
RailInterpolator * m_railInterpolator
BoxColUnit * m_boxColUnit
const System::MapdataGeoObj * m_mapObj

Constructor & Destructor Documentation

◆ ObjectCowHerd()

Kinoko::Field::ObjectCowHerd::ObjectCowHerd ( const System::MapdataGeoObj & params)
0x806BEB54

Definition at line 425 of file ObjectCow.cc.

◆ ~ObjectCowHerd()

Kinoko::Field::ObjectCowHerd::~ObjectCowHerd ( )
overridedefault0x806BEFEC

Member Function Documentation

◆ calc()

void Kinoko::Field::ObjectCowHerd::calc ( )
overridevirtual0x806BF064

< Distance at which a Cow will return to its leader

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 462 of file ObjectCow.cc.

◆ checkIntraCollision()

void Kinoko::Field::ObjectCowHerd::checkIntraCollision ( )
private0x806BF114

Prevents cows from walking into each other.

Definition at line 478 of file ObjectCow.cc.

◆ createCollision()

void Kinoko::Field::ObjectCowHerd::createCollision ( )
inlineoverridevirtual0x806BF348

Reimplemented from Kinoko::Field::ObjectCollidable.

Definition at line 164 of file ObjectCow.hh.

◆ init()

void Kinoko::Field::ObjectCowHerd::init ( )
overridevirtual0x806BF02C

Assigns the herd's rail to each child.

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 455 of file ObjectCow.cc.

◆ loadFlags()

u32 Kinoko::Field::ObjectCowHerd::loadFlags ( ) const
inlinenodiscardoverridevirtual0x806BF42C

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 159 of file ObjectCow.hh.

◆ loadRail()

void Kinoko::Field::ObjectCowHerd::loadRail ( )
inlineoverridevirtual0x806BF34C

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 167 of file ObjectCow.hh.

Member Data Documentation

◆ m_followers

owning_span<ObjectCowFollower *> Kinoko::Field::ObjectCowHerd::m_followers
private

Definition at line 173 of file ObjectCow.hh.

◆ m_leader

ObjectCowLeader* Kinoko::Field::ObjectCowHerd::m_leader
private

Definition at line 172 of file ObjectCow.hh.