ParaEngine::BlockCommon Class Reference

common static functions to block api, mostly standalone math API More...

#include <BlockCommon.h>

Static Public Member Functions
static Vector3	ConvertToRealPosition (uint16 x, uint16 y, uint16 z, int nSide=-1)
	convert from block index to real world coordinate. More...
static float	ConvertToRealY (uint16 y)
static void	GetBlockPosBySide (int &x, int &y, int &z, int nSide=4)
	convert from block x,y,z, to new x,y,z accordig to side. More...
static void	ConvertToBlockIndex (float x, float y, float z, uint16 &idx_x, uint16 &idx_y, uint16 &idx_z)
	convert real world coordinate x,y,z to block index.
static Vector3	GetBlockCenter (float x, float y, float z)
	get the block center, based on a real world position.
static Vector3	GetNormalBySide (int nSide)
	get the block normal according to block side id More...
static bool	IsOppositeSide (int nSide1, int nSide2)
	whether the two side is opposite side. More...
static bool	IsCornerSide (int nSide1, int nSide2)
	whether the two side form a corner side. More...
static void	ConstrainPos (Vector3 &vMovePos, const Vector3 &vMinPos, const Vector3 &vMaxPos)
	constrain pos in a AABB cubic space
static void	ConstrainPos (DVector3 &vMovePos, const Vector3 &vMinPos, const Vector3 &vMaxPos)
static void	ConstrainPosOuter (Vector3 &vMovePos, const Vector3 &vMinPos, const Vector3 &vMaxPos, float fBoarderDist)
	constrain pos outside a AABB cubic space. More...

Static Public Attributes
static const Int16x3	NeighborOfsTable [27]
static const int32_t	NeighborLightOrder []
	96 relative block position of the 24 vertices. (each vertex has 4 rbp position)
static const int32_t	RBP_SixNeighbors []
	relative block position of the six most close neighbors out of the 27 neighbor RBP positions. in block rendering order More...
static int32	g_xzDirectionsConst [4][2] = { { 1, 0 }, { 0, 1 }, { -1, 0 }, { 0, -1 } }

Detailed Description

common static functions to block api, mostly standalone math API

Member Function Documentation

ConstrainPosOuter()

void ParaEngine::BlockCommon::ConstrainPosOuter ( Vector3 &  vMovePos, const Vector3 &  vMinPos, const Vector3 &  vMaxPos, float  fBoarderDist  )

static

constrain pos outside a AABB cubic space.

if there is AABB's side whose distance to point is smaller than fBoarderDist, then the point will be pushed to that side only.

ConvertToRealPosition()

Vector3 ParaEngine::BlockCommon::ConvertToRealPosition ( uint16  x, uint16  y, uint16  z, int  nSide = -1  )

static

convert from block index to real world coordinate.

Parameters

nSide

default to -1. -1 is the block center, 4 is top. 5 is bottom.

Returns

: the returned position is always the center of the block.

GetBlockPosBySide()

void ParaEngine::BlockCommon::GetBlockPosBySide ( int &  x, int &  y, int &  z, int  nSide = 4  )

static

convert from block x,y,z, to new x,y,z accordig to side.

Parameters

nSide

default to -1. -1 is the block center, 4 is top. 5 is bottom.

GetNormalBySide()

Vector3 ParaEngine::BlockCommon::GetNormalBySide ( int  nSide )

static

get the block normal according to block side id

Parameters

nSide

in range [0,5], where 4 up, 5 bottom, etc.

IsCornerSide()

bool ParaEngine::BlockCommon::IsCornerSide ( int  nSide1, int  nSide2  )

static

whether the two side form a corner side.

0,1 and 2, 3, and 4, 5 are not side. and anything equal is not corner side

IsOppositeSide()

bool ParaEngine::BlockCommon::IsOppositeSide ( int  nSide1, int  nSide2  )

static

whether the two side is opposite side.

0,1 and 2, 3, and 4, 5 are opposite side.

Member Data Documentation

NeighborOfsTable

const Int16x3 ParaEngine::BlockCommon::NeighborOfsTable

static

Initial value:

=
    {
        Int16x3(0,0,0),         
        Int16x3(1,0,0),         
        Int16x3(-1,0,0),            
        Int16x3(0,1,0),         
        Int16x3(0,-1,0),            
        Int16x3(0,0,1),         
        Int16x3(0,0,-1),            
        Int16x3(1,1,0),         
        Int16x3(1,-1,0),            
        Int16x3(1,0,1),         
        Int16x3(1,0,-1),            
        Int16x3(-1,1,0),            
        Int16x3(-1,-1,0),       
        Int16x3(-1,0,1),            
        Int16x3(-1,0,-1),       
        Int16x3(0,1,1),         
        Int16x3(0,1,-1),            
        Int16x3(0,-1,1),            
        Int16x3(0,-1,-1),       
        Int16x3(1,1,1),         
        Int16x3(1,1,-1),            
        Int16x3(1,-1,1),            
        Int16x3(1,-1,-1),       
        Int16x3(-1,1,1),            
        Int16x3(-1,1,-1),       
        Int16x3(-1,-1,1),       
        Int16x3(-1,-1,-1),      
    }

RBP_SixNeighbors

const int32_t ParaEngine::BlockCommon::RBP_SixNeighbors

static

Initial value:

= {
        rbp_pY,
        rbp_nZ,
        rbp_nY,
        rbp_nX,
        rbp_pX,
        rbp_pZ,
    }

relative block position of the six most close neighbors out of the 27 neighbor RBP positions. in block rendering order

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

• Client/trunk/ParaEngineClient/BlockEngine/BlockCommon.h
• Client/trunk/ParaEngineClient/BlockEngine/BlockCommon.cpp