axmol/cocos2dx/include/ccMacros.h

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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****************************************************************************/

#ifndef __CCMACROS_H__
#define __CCMACROS_H__

#include <math.h>

/**
 @file
 cocos2d helper macros
 */
 /*
 * if COCOS2D_DEBUG is not defined, or if it is 0 then
 *	all CCLOGXXX macros will be disabled
 *
 * if COCOS2D_DEBUG==1 then:
 *		CCLOG() will be enabled
 *		CCLOGERROR() will be enabled
 *		CCLOGINFO()	will be disabled
 *
 * if COCOS2D_DEBUG==2 or higher then:
 *		CCLOG() will be enabled
 *		CCLOGERROR() will be enabled
 *		CCLOGINFO()	will be enabled 
 */

#if !defined(COCOS2D_DEBUG) || COCOS2D_DEBUG == 0
#define CCLOG(...) do {} while (0)
#define CCLOGINFO(...) do {} while (0)
#define CCLOGERROR(...) do {} while (0)

#elif COCOS2D_DEBUG == 1
#define CCLOG(...) printf(__VA_ARGS__)
#define CCLOGERROR(...) printf(__VA_ARGS__)
#define CCLOGINFO(...) do {} while (0)

#elif COCOS2D_DEBUG > 1
#define CCLOG(...) printf(__VA_ARGS__)
#define CCLOGERROR(...) printf(__VA_ARGS__)
#define CCLOGINFO(...) printf(__VA_ARGS__)
#endif // COCOS2D_DEBUG

/** @def CC_SWAP
simple macro that swaps 2 variables
*/
#define CC_SWAP(x, y)			\
({ typename(x) temp  = (x);		\
		x = y; y = temp;		\
})


/** @def CCRANDOM_MINUS1_1
 returns a random float between -1 and 1
 */
#define CCRANDOM_MINUS1_1() ((random() / (float)0x3fffffff )-1.0f)

/** @def CCRANDOM_0_1
 returns a random float between 0 and 1
 */
#define CCRANDOM_0_1() ((random() / (float)0x7fffffff ))

/** @def CC_DEGREES_TO_RADIANS
 converts degrees to radians
 */
#define CC_DEGREES_TO_RADIANS(__ANGLE__) ((__ANGLE__) / 180.0f * (float)M_PI)

/** @def CC_RADIANS_TO_DEGREES
 converts radians to degrees
 */
#define CC_RADIANS_TO_DEGREES(__ANGLE__) ((__ANGLE__) / (float)M_PI * 180.0f)

/** @def CC_BLEND_SRC
default gl blend src function. Compatible with premultiplied alpha images.
*/
#define CC_BLEND_SRC GL_ONE

/** @def CC_BLEND_DST
 default gl blend dst function. Compatible with premultiplied alpha images.
 */
#define CC_BLEND_DST GL_ONE_MINUS_SRC_ALPHA

/** @def CC_ENABLE_DEFAULT_GL_STATES
 GL states that are enabled:
	- GL_TEXTURE_2D
	- GL_VERTEX_ARRAY
	- GL_TEXTURE_COORD_ARRAY
	- GL_COLOR_ARRAY
 */
#define CC_ENABLE_DEFAULT_GL_STATES() {				\
	glEnableClientState(GL_VERTEX_ARRAY);			\
	glEnableClientState(GL_COLOR_ARRAY);			\
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);	\
	glEnable(GL_TEXTURE_2D);						\
}

/** @def CC_DISABLE_DEFAULT_GL_STATES 
 Disable default GL states:
	- GL_TEXTURE_2D
	- GL_VERTEX_ARRAY
	- GL_TEXTURE_COORD_ARRAY
	- GL_COLOR_ARRAY
 */
#define CC_DISABLE_DEFAULT_GL_STATES() {			\
	glDisable(GL_TEXTURE_2D);						\
	glDisableClientState(GL_COLOR_ARRAY);			\
	glDisableClientState(GL_TEXTURE_COORD_ARRAY);	\
	glDisableClientState(GL_VERTEX_ARRAY);			\
}

/** @def CC_DIRECTOR_INIT
	- Initializes an EAGLView with 0-bit depth format, and RGB565 render buffer.
	- The EAGLView view will have multiple touches disabled.
	- It will create a UIWindow and it will assign it the 'window' variable. 'window' must be declared before calling this marcro.
	- It will parent the EAGLView to the created window
	- If the firmware >= 3.1 it will create a Display Link Director. Else it will create an NSTimer director.
	- It will try to run at 60 FPS.
	- The FPS won't be displayed.
	- The orientation will be portrait.
	- It will connect the director with the EAGLView.

 IMPORTANT: If you want to use another type of render buffer (eg: RGBA8)
 or if you want to use a 16-bit or 24-bit depth buffer, you should NOT
 use this macro. Instead, you should create the EAGLView manually.
 
 @since v0.99.4
 */

//---- todo: replace with uphone window

/*
#define CC_DIRECTOR_INIT()																		\
do	{																							\
	window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];					\
	if( ! [CCDirector setDirectorType:kCCDirectorTypeDisplayLink] )								\
		[CCDirector setDirectorType:kCCDirectorTypeNSTimer];									\
	CCDirector *__director = [CCDirector sharedDirector];										\
	[__director setDeviceOrientation:kCCDeviceOrientationPortrait];								\
	[__director setDisplayFPS:NO];																\
	[__director setAnimationInterval:1.0/60];													\
	EAGLView *__glView = [EAGLView viewWithFrame:[window bounds]								\
									pixelFormat:kEAGLColorFormatRGB565							\
									depthFormat:0 /* GL_DEPTH_COMPONENT24_OES   				\
							 preserveBackbuffer:NO];											\
	[__director setOpenGLView:__glView];														\
	[window addSubview:__glView];																\
	[window makeKeyAndVisible];																	\
} while(0)
*/
 
 /** @def CC_DIRECTOR_END
  Stops and removes the director from memory.
  Removes the EAGLView from its parent
  
  @since v0.99.4
  */

//---- todo: replace with uphone window

 /*
#define CC_DIRECTOR_END()										\
do {															\
	CCDirector *__director = [CCDirector sharedDirector];		\
	EAGLView *__view = [__director openGLView];					\
	[__view removeFromSuperview];								\
	[__director end];											\
} while(0)
*/

#ifndef FLT_EPSILON
#define FLT_EPSILON     1.192092896e-07F
#endif // FLT_EPSILON

#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
	        TypeName(const TypeName&);\
			void operator=(const TypeName&)


#endif // __CCMACROS_H__