ptypes.h

实现烟雾模拟（smoke）的源代码

//-------------------------------------------------------------------
// Defines - General definitions and classes.
// By: Aaron Hilton (c) July 1997
//-------------------------------------------------------------------
#ifndef __Defines_
#define __Defines_

//-------------------------------------------------------------------
// General definitions and classes.
typedef long Bool;
typedef long Int;
typedef float Float;

typedef unsigned char	UInt8;
typedef signed char		Int8;

typedef unsigned short	UInt16;
typedef short			Int16;

typedef unsigned long	UInt32;
typedef long			Int32;

typedef char*			PStr;	        // pointer to a string
typedef const char *	PConstStr;	    // pointer to a constant string

typedef UInt8*			PUInt8;
typedef Int8*			PInt8;

typedef UInt16*			PUInt16;
typedef Int16*			PInt16;

typedef UInt32*			PUInt32;
typedef Int32*			PInt32;

#define True 1
#define False 0
#define Null 0

// Toast pointer based allocations in one fell swoop.
#define NUKE(x) if(x != 0) {delete x; x=0;} 

// Platform specific debug info.
#ifdef _DEBUG
	#define __DEBUG
#endif //DEBUG

// CDECL is used for functions that take variable arguments.
#ifndef CDECL
	#define CDECL __cdecl
#endif

// APIDECL is used on global public functions.
#ifndef APIDECL
	#define APIDECL __stdcall
#endif


// Not used yet... but soon.
#define EXPORT

//-------------------------------------------------------------------
// PointI2D & PointUI2D: Copywrite 18/07/97
// TBI - Write wrapper class.
typedef tagPOINT PointI2D;
typedef struct _tag_PointUI2D
{
	UInt32 x, y;
} PointUI2D;

// SizeI2D: Copywrite 18/07/97
// TBI - Write wrapper class.
typedef tagSIZE SizeI2D;

// RectI: Copywrite 18/07/97
// TBI - Write wrapper class.
typedef tagRECT RectI;

//-------------------------------------------
#define sqr( X )	( (X) * (X) )	                   	// Square the X
#define PI				3.14159265358979323846f
#define DEG2RAD(X)		(PI*(X)/180.0)	// Degrees -> Radians
#define RAD2DEG(X)		((X)*180.0/PI)	// Radians -> Degrees
#define rnd()		((Float)rand()*(1.0f /(Float)RAND_MAX))  // Floating point random number generator ( 0 -> 1)
#define rnd2(f) ((Float)rand()*(f /(Float)RAND_MAX))  // Floating point random number generator ( 0 -> 1)

// fabs: Absolute function.
//#undef abs
//#define abs(a)     ( (a) > 0 ? (a) : -(a) )

// Force sign clamping to (-1;0;1)
#define sgn(a)      ((a)<0?-1:((a)?1:0))

#ifndef max
	#define max( a, b )   ((a) > (b) ? (a) : (b))
#endif

#ifndef min
	#define min( a, b )   ((a) < (b) ? (a) : (b))
#endif

// Macro to release an object. 
#define RELEASE(x) if(x != NULL) {x->Release(); x = NULL;} 
// Macro to display a message box containing the given string. 
#define DISPLAYMSG(x) MessageBox(NULL, x, "Planet Toast Message", MB_OK);

#endif