shape.h

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/* -*- mode: c; c-basic-offset: 4; -*- */
#ifndef __SHAPE__
#define __SHAPE__

#include <stdlib.h>
#include "libstd/defines.h"

typedef struct point {

    unsigned short x;
    unsigned short y;
    /* 4-bit colors */
    shade_t shade : SHADE_SIZE;
} point;

typedef struct shape {

    unsigned short num_points;
    point** points;
} shape;

typedef struct circle {

    /* A circle consists of a center and a radius */
    point* center;
    ushort radius;
} circle;

inline void shape_destroy_point(point* p) {

    free(p);
}

inline void shape_destroy_circle(circle* cir) {

    free(cir);
}

point* shape_create_point(ushort, ushort, shade_t);

inline point* shape_duplicate_point(point* p) {

    return shape_create_point(p->x, p->y, p->shade);
}

shape* shape_create(ushort, ...);

shape* shape_duplicate_shape(shape*);

void   shape_destroy_shape(shape*);

circle* shape_create_circle(ushort, point*);

shape*  shape_create_triangle(point*, point*, point*);

shape*  shape_create_quad(point*, uchar, uchar);

#endif  /*  __SHAPE__ */