#import <Cocoa/Cocoa.h>

#import <Foundation/NSObject.h>

#include <math.h>

#include <stdlib.h>

#include <OpenGL/gl.h>

#include <OpenGL/glext.h>

#include <OpenGL/glu.h>

#define SQRTOFTWOINV (1.0f / 1.414213562f)

#ifndef M_PI

#define M_PI 3.14159265358979323846f

#endif

#define MAXGRID       180

typedef struct {

    GLfloat x, y, z;

} Vector;

typedef struct {

    GLfloat x, y, z, w;

} Vector4;

typedef struct {

    GLfloat s, t;

} TextureCoord;

typedef struct {

    Vector4     position;

    Vector4     normal;

        TextureCoord    texcoord;

} Vertex;

typedef struct {

        GLfloat x, y, z, pad0;

        GLfloat amp, freq, decay, pad1;

} Emitter;

@interface WaveOject : NSObject

{

    GLushort    elements[MAXGRID-1][MAXGRID*2];

    Vertex      (*vn_ptr[2])[MAXGRID][MAXGRID];

    Vector4     (*faceNorms[2])[MAXGRID][MAXGRID];

    GLfloat     veloc[MAXGRID][MAXGRID];

    GLfloat     xPosDat[MAXGRID*MAXGRID + 16];

    GLfloat     yPosDat[MAXGRID*MAXGRID + 16];

    GLfloat     sim_time;

    GLfloat     sphi;

    GLfloat     stheta;

    GLfloat     sdepth;

    GLint       downX;

    GLint       downY;

    GLint       opt_level;

    GLint       fillmode;

    Emitter     emitters[4];

    GLuint      fences[2];

}

- (void)WaveMotion:(GLint) buffer;

- (GLuint)WaveDisplay:(GLint) buffer;

- (void)WaveSetDisplay:(GLint)level;

- (void)WaveReshape:(GLint)width:(GLint)height;

- (void)WaveMouseDown:(GLint)x:(GLint)y;

- (void)WaveMouseMotion:(GLint)x:(GLint)y;

- (void)WaveSetFillMode:(GLint)mode;

@end