#include <AWorld.h>

Public Member Functions
	Frustum ()

void	InitReduce ()

FrustumIntersectSphereResult	IntersectSphereReduce (const Toshi::TSphere &a_rSphere)

void	Transform (const Frustum &a_rFrustum, const Toshi::TMatrix44 &a_rMatrix)

Public Attributes
TUINT16	aUnknown [6]

FrustumPlane	aFrustumPlanes [6]

Toshi::TPlane *	apActivePlanes [6]

TINT	iActivePlaneCount

Detailed Description

Definition at line 44 of file AWorld.h.

Constructor & Destructor Documentation

◆ Frustum()

Frustum::Frustum ( )

Definition at line 12 of file AWorld.cpp.

{
    aFrustumPlanes[ 0 ].uiClipFlag = 0;
    aFrustumPlanes[ 1 ].uiClipFlag = 0;
    aFrustumPlanes[ 2 ].uiClipFlag = 0;
    aFrustumPlanes[ 3 ].uiClipFlag = 0;
    aFrustumPlanes[ 4 ].uiClipFlag = 0;
    aFrustumPlanes[ 5 ].uiClipFlag = 0;
    iActivePlaneCount              = 0;
}

Member Function Documentation

◆ InitReduce()

void Frustum::InitReduce ( )

Definition at line 23 of file AWorld.cpp.

{
    iActivePlaneCount = 6;
 
    for ( TINT i = 0; i < iActivePlaneCount; i++ )
    {
        apActivePlanes[ i ] = &aFrustumPlanes[ i ].oPlane;
    }
}

◆ IntersectSphereReduce()

FrustumIntersectSphereResult Frustum::IntersectSphereReduce ( const Toshi::TSphere & a_rSphere )

Definition at line 33 of file AWorld.cpp.

{
    for ( TINT i = 0; i < iActivePlaneCount; )
    {
        TFLOAT fDistance = TVector4::DotProduct3( a_rSphere.AsVector4(), apActivePlanes[ i ]->AsVector4() ) - apActivePlanes[ i ]->GetD();
 
        if ( a_rSphere.GetRadius() < fDistance )
            return FISR_NOT_VISIBLE;
 
        if ( a_rSphere.GetRadius() <= -fDistance )
        {
            iActivePlaneCount--;
            TSwapValues( apActivePlanes[ i ], apActivePlanes[ iActivePlaneCount ] );
        }
        else
        {
            i += 1;
        }
    }
 
    if ( iActivePlaneCount == 0 )
        return FISR_ALL_VISIBLE;
 
    return FISR_PARTIALLY_VISIBLE;
}

◆ Transform()

void Frustum::Transform	(	const Frustum &	a_rFrustum,
		const Toshi::TMatrix44 &	a_rMatrix )

Definition at line 59 of file AWorld.cpp.

{
    for ( TINT i = 0; i < 6; i++ )
    {
        TMatrix44::TransformPlaneOrthogonal(
            aFrustumPlanes[ i ].oPlane,
            a_rMatrix,
            a_rFrustum.aFrustumPlanes[ i ].oPlane
        );
 
        aFrustumPlanes[ i ].uiClipFlag = a_rFrustum.aFrustumPlanes[ i ].uiClipFlag;
    }
}

Member Data Documentation

◆ aFrustumPlanes

FrustumPlane Frustum::aFrustumPlanes[6]

Definition at line 56 of file AWorld.h.

◆ apActivePlanes

Toshi::TPlane* Frustum::apActivePlanes[6]

Definition at line 57 of file AWorld.h.

◆ aUnknown

TUINT16 Frustum::aUnknown[6]

Definition at line 55 of file AWorld.h.

◆ iActivePlaneCount

TINT Frustum::iActivePlaneCount

Definition at line 58 of file AWorld.h.

The documentation for this class was generated from the following files:

D:/_dev/OpenBarnyard/Source/OpenBarnyard/Source/World/AWorld.h
D:/_dev/OpenBarnyard/Source/OpenBarnyard/Source/World/AWorld.cpp

Public Member Functions

Public Attributes