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

#include <ObjectPylon.hh>

Description

The traffic cones on Daisy Circuit.

Definition at line 8 of file ObjectPylon.hh.

Inheritance diagram for Kinoko::Field::ObjectPylon:

Public Member Functions

 ObjectPylon (const System::MapdataGeoObj &params)
void init () override
void calc () override
u32 loadFlags () const override
Kart::Reaction onCollision (Kart::KartObject *kartObj, Kart::Reaction reactionOnKart, Kart::Reaction reactionOnObj, EGG::Vector3f &hitDepth) 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 void onWallCollision (Kart::KartObject *, const EGG::Vector3f &)
virtual void onObjectCollision (Kart::KartObject *)
virtual bool checkCollision (ObjectCollisionBase *lhs, EGG::Vector3f &dist)
virtual const EGG::Vector3fgetCollisionTranslation () const
virtual ObjectCollisionBasecollision () 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 void loadRail ()
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 BoxColUnitgetUnit () const
const RailInterpolatorrailInterpolator () const
virtual const EGG::Vector3fgetPosition () 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::Vector3fpos () const
const EGG::Vector3fscale () const
const EGG::Vector3frot () const
const EGG::Matrix34ftransform () const

Private Types

enum  State {
  Idle = 0 ,
  Moving = 1 ,
  Hide = 2 ,
  ComeBack = 3 ,
  Hiding = 4 ,
  Hit = 5
}

Private Member Functions

void checkIntraCollision (const EGG::Vector3f &hitDepth)
void startHit (f32 velFactor, EGG::Vector3f &hitDepth)
void calcHit ()
void calcHiding ()
void calcHide ()
void calcComeBack ()

Private Attributes

State m_state
std::array< ObjectPylon *, 2 > m_neighbors
const EGG::Vector3f m_initPos
const EGG::Vector3f m_initScale
const EGG::Vector3f m_initRot
u32 m_stateStartFrame
 Frame when pylon entered the current m_state.
u32 m_numBounces
 Number of floor collisions while in Hit state.
EGG::Vector3f m_vel
 Velocity used in Hit and ComeBack states.
EGG::Vector3f m_angVel
 Added to rotation while in Hit state.

Static Private Attributes

static constexpr f32 RADIUS = 120.0f
static constexpr f32 FALL_VEL = 20.0f
static constexpr u32 STATE_COOLDOWN_FRAMES = 5
 Minimum frames before a state change can occur.

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
void createCollision () override
virtual const EGG::Vector3fcollisionCenter () 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
ObjectCollisionBasem_collision
Protected Attributes inherited from Kinoko::Field::ObjectBase
Render::DrawMdlm_drawMdl
Abstract::g3d::ResFilem_resFile
ObjectId m_id
RailInterpolatorm_railInterpolator
BoxColUnitm_boxColUnit
const System::MapdataGeoObjm_mapObj

Member Enumeration Documentation

◆ State

enum Kinoko::Field::ObjectPylon::State
private

Definition at line 25 of file ObjectPylon.hh.

Constructor & Destructor Documentation

◆ ObjectPylon()

Kinoko::Field::ObjectPylon::ObjectPylon ( const System::MapdataGeoObj & params)
0x8082CAD8

Definition at line 13 of file ObjectPylon.cc.

◆ ~ObjectPylon()

Kinoko::Field::ObjectPylon::~ObjectPylon ( )
overridedefault0x8082E500

Member Function Documentation

◆ calc()

void Kinoko::Field::ObjectPylon::calc ( )
overridevirtual0x8082D044

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 76 of file ObjectPylon.cc.

◆ calcComeBack()

void Kinoko::Field::ObjectPylon::calcComeBack ( )
private

Definition at line 312 of file ObjectPylon.cc.

◆ calcHide()

void Kinoko::Field::ObjectPylon::calcHide ( )
private

Definition at line 301 of file ObjectPylon.cc.

◆ calcHiding()

void Kinoko::Field::ObjectPylon::calcHiding ( )
private

Definition at line 282 of file ObjectPylon.cc.

◆ calcHit()

void Kinoko::Field::ObjectPylon::calcHit ( )
private

Definition at line 223 of file ObjectPylon.cc.

◆ checkIntraCollision()

void Kinoko::Field::ObjectPylon::checkIntraCollision ( const EGG::Vector3f & hitDepth)
private0x8082E100
Warning
This function can cause time trial desyncs. Higher in the callstack is ObjectDirector::checkKartObjectCollision, which iterates over each object in the spatial cache. For each object, it updates the AABB and checks for collision. If there was a collision, it calls OnCollision which will in turn call this function. This function will then update its position if it finds itself to be colliding with any of its neighbors. However, it is not guaranteed that its neighbors have had their AABBs updated yet for this frame, as they may not be processed until a later iteration in checkKartObjectCollision.

Definition at line 169 of file ObjectPylon.cc.

◆ init()

void Kinoko::Field::ObjectPylon::init ( )
overridevirtual0x8082CD60

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 20 of file ObjectPylon.cc.

◆ loadFlags()

u32 Kinoko::Field::ObjectPylon::loadFlags ( ) const
inlinenodiscardoverridevirtual0x8082E4F8

Reimplemented from Kinoko::Field::ObjectBase.

Definition at line 17 of file ObjectPylon.hh.

◆ onCollision()

Kart::Reaction Kinoko::Field::ObjectPylon::onCollision ( Kart::KartObject * kartObj,
Kart::Reaction reactionOnKart,
Kart::Reaction reactionOnObj,
EGG::Vector3f & hitDepth )
overridevirtual0x8082DBEC

If the player's speed ratio is above 70%, then the pylon enters the "Hit" state where it bounces away. Else, it checks to see the angle of impact between the player and the pylon. If the player's angle falls between 30 and 150 degrees, then the cone will reduce the player's speed down to 82%.

Reimplemented from Kinoko::Field::ObjectCollidable.

Definition at line 105 of file ObjectPylon.cc.

◆ startHit()

void Kinoko::Field::ObjectPylon::startHit ( f32 velFactor,
EGG::Vector3f & hitDepth )
private0x8082E3F0

Definition at line 210 of file ObjectPylon.cc.

Member Data Documentation

◆ FALL_VEL

f32 Kinoko::Field::ObjectPylon::FALL_VEL = 20.0f
staticconstexprprivate

Definition at line 54 of file ObjectPylon.hh.

◆ m_angVel

EGG::Vector3f Kinoko::Field::ObjectPylon::m_angVel
private

Added to rotation while in Hit state.

Definition at line 51 of file ObjectPylon.hh.

◆ m_initPos

const EGG::Vector3f Kinoko::Field::ObjectPylon::m_initPos
private

Definition at line 45 of file ObjectPylon.hh.

◆ m_initRot

const EGG::Vector3f Kinoko::Field::ObjectPylon::m_initRot
private

Definition at line 47 of file ObjectPylon.hh.

◆ m_initScale

const EGG::Vector3f Kinoko::Field::ObjectPylon::m_initScale
private

Definition at line 46 of file ObjectPylon.hh.

◆ m_neighbors

std::array<ObjectPylon *, 2> Kinoko::Field::ObjectPylon::m_neighbors
private

Definition at line 44 of file ObjectPylon.hh.

◆ m_numBounces

u32 Kinoko::Field::ObjectPylon::m_numBounces
private

Number of floor collisions while in Hit state.

Definition at line 49 of file ObjectPylon.hh.

◆ m_state

State Kinoko::Field::ObjectPylon::m_state
private

Definition at line 43 of file ObjectPylon.hh.

◆ m_stateStartFrame

u32 Kinoko::Field::ObjectPylon::m_stateStartFrame
private

Frame when pylon entered the current m_state.

Definition at line 48 of file ObjectPylon.hh.

◆ m_vel

EGG::Vector3f Kinoko::Field::ObjectPylon::m_vel
private

Velocity used in Hit and ComeBack states.

Definition at line 50 of file ObjectPylon.hh.

◆ RADIUS

f32 Kinoko::Field::ObjectPylon::RADIUS = 120.0f
staticconstexprprivate

Definition at line 53 of file ObjectPylon.hh.

◆ STATE_COOLDOWN_FRAMES

u32 Kinoko::Field::ObjectPylon::STATE_COOLDOWN_FRAMES = 5
staticconstexprprivate

Minimum frames before a state change can occur.

Definition at line 57 of file ObjectPylon.hh.