#ifndef __COMMON_H__
#define __COMMON_H__

#include <SDL/SDL.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <time.h>


/* global defines */  
#define SCREEN_WIDTH        640
#define SCREEN_HEIGHT       480
#define SCREEN_BPP          16
#define TRUE                1
#define FALSE               0

/* main screen surface */
SDL_Surface *surface;

typedef struct
{
    GLfloat x;
    GLfloat y;
    GLfloat z;
} Vector;

Vector cameraPosition = {0.0F, 0.0F, 0.0F};
Vector cameraLook = {0.0F, 0.0F, -1.0F};

char *pTextures[] = {"pBlue.bmp", "pGreen.pcx", "pRed.pcx"};

/* copy v2 to v1 */
void vectorCopy(Vector *v1, Vector *v2)
{
    v1->x = v2->x;
    v1->y = v2->y;
    v1->z = v2->y;
}

/* returns a floating point value between -ceiling and ceiling */
GLfloat frand(GLfloat ceiling)
{
    if ( ((rand() / ((RAND_MAX+1)/2) )) < 0)
        return (rand() / ( ((float) RAND_MAX+1) / -ceiling));
    else
        return (rand() / ( ((float) RAND_MAX+1) / ceiling));
}

#include "particle.h"
#include "draw.h"
#include "init.h"

PEmitter theEmitter[2];

#endif // __COMMON_H__               1