naev.h

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/*
 * Copyright 2006-2021 Naev DevTeam
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once

#include <math.h> // IWYU pragma: export
 
#include "SDL_stdinc.h"
 
#define APPNAME "Naev" 
 
#define ABS( x )                                                               \
   ( ( ( x ) < 0 ) ? -( x ) : ( x ) ) 
#define FABS( x )                                                              \
   ( ( ( x ) < 0. ) ? -( x ) : ( x ) ) 
 
#define MAX( x, y )                                                            \
   ( ( ( x ) > ( y ) ) ? ( x ) : ( y ) ) 
#define MIN( x, y )                                                            \
   ( ( ( x ) > ( y ) ) ? ( y ) : ( x ) ) 
#define CLAMP( a, b, x )                                                       \
   ( ( x ) < ( a )                                                             \
        ? ( a )                                                                \
        : ( ( x ) > ( b )                                                      \
               ? ( b )                                                         \
               : ( x ) ) ) 
 
#define SIGN( x )                                                              \
   ( ( ( x ) > 0 ) ? 1 : -1 ) 
#define FSIGN( x )                                                             \
   ( ( ( x ) > 0. ) ? 1. : -1. ) 
 
#define pow2( x ) ( ( x ) * ( x ) ) 
 
/* maximum filename path */
#ifndef PATH_MAX
#define PATH_MAX 256 
#endif               /* PATH_MAX */
 
/* Default maximum string length */
#define STRMAX 4096
#define STRMAX_SHORT 1024
 
#define DOUBLE_TOL 1e-6
 
/*
 * Misc stuff.
 */
extern Uint32       SDL_LOOPDONE;
extern const double fps_min;
extern double       elapsed_time_mod;
void                fps_setPos( double x, double y );
void                fps_display( double dt );
double              fps_current( void );
void                naev_resize( void );
void                naev_toggleFullscreen( void );
void                update_routine( double dt, int dohooks );
const char         *naev_version( int long_version );
int                 naev_versionCompare( const char *version );
int    naev_versionCompareTarget( const char *version, const char *target );
void   naev_quit( void );
int    naev_isQuit( void );
double naev_getrealdt( void );
 
int  naev_shouldRenderLoadscreen( void );
void naev_doRenderLoadscreen( void );
void naev_renderLoadscreen( void );