/* Circle.c 
	 Implementation of Circle class
*/

#include <math.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>

#include "Point.h"

struct circle {
	double radius;
	Point origin; 
	};

#include "Circle.h"

Circle ConsCircle( Point origin, double radius ) {
	Circle c;
	c = malloc( sizeof( struct circle ) );
	if ( c != NULL ) {
		c->origin = CopyPoint( origin );
		c->radius = radius;
		}
	return c;
	}

void DeleteCircle( Circle c ) {
	assert( c != NULL );
	free( c );
	}

double Radius( Circle c ) {
	assert( c != NULL );
	return c->radius;
	}

Point Origin( Circle c ) {
	assert( c != NULL );
	return c->origin;
	}

int PointInCircle( Circle c, Point p ) {
	return ( Dist( c->origin, p ) < c->radius );
	}