You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
1.8 KiB
77 lines
1.8 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
|
// |
|
// Purpose: Heightfield class |
|
// |
|
// $Revision: $ |
|
// $NoKeywords: $ |
|
//===========================================================================// |
|
|
|
#ifndef HEIGHTFIELD_H |
|
#define HEIGHTFIELD_H |
|
|
|
#ifdef _WIN32 |
|
#pragma once |
|
#endif |
|
|
|
#include "materialsystem/MaterialSystemUtil.h" |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// Forward declarations |
|
//----------------------------------------------------------------------------- |
|
class CMeshBuilder; |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// Definition of a heightfield |
|
//----------------------------------------------------------------------------- |
|
class CHeightField |
|
{ |
|
public: |
|
CHeightField( int nPowX, int nPowY, int nPowScale ); |
|
~CHeightField(); |
|
|
|
// Loads the heights from a file |
|
bool LoadHeightFromFile( const char *pFileName ); |
|
|
|
// Returns the max range of x, y |
|
int GetWidth(); |
|
int GetHeight(); |
|
|
|
// Returns the height of the field at a paticular (x,y) |
|
float GetHeight( float x, float y ); |
|
float GetHeightAndSlope( float x, float y, float *dx, float *dy ); |
|
|
|
// Draws the heightfield |
|
void Draw( ); |
|
|
|
private: |
|
int m_nPowX; |
|
int m_nPowY; |
|
int m_nWidth; |
|
int m_nHeight; |
|
int m_nScale; |
|
int m_nPowScale; |
|
float m_flOOScale; |
|
float *m_pHeightField; |
|
|
|
CMaterialReference m_Material; |
|
CTextureReference m_Texture; |
|
}; |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// Returns the max range of x, y (for use in GetHeight) |
|
//----------------------------------------------------------------------------- |
|
inline int CHeightField::GetWidth() |
|
{ |
|
return m_nWidth << m_nPowScale; |
|
} |
|
|
|
inline int CHeightField::GetHeight() |
|
{ |
|
return m_nHeight << m_nPowScale; |
|
} |
|
|
|
|
|
#endif // HEIGHTFIELD_H
|
|
|