#include<stdlib.h>
#include<assert.h>
#define CALCULATE_COLOR(R,G,B) R + G + B // need to put parentheses on this expression
typedef struct point_t {
	double x;
	double y;
	char* description;
} *Point;
typedef struct polygon_t {
	Point* vertices;
	int numberOfVertices;
	int color;
	Point center;
} *Polygon;
 Polygon polygonCreate(int cFactor, Point center, Point* vertices, int n, int int G, int B){ // need to add const to vertices and center
	Polygon p; // needs to be allocated and checked
	assert(vertices != NULL);
	p->vertices = malloc(sizeof(Point)*n); // needs to be checked
	for(int i = 0 ; i < n ; i ++){
		p->vertices[i] = malloc(sizeof(*vertices));
		if(p->vertices[i] == NULL){
			free(p->vertices); // need to free the contents of the array as well (and remember to free desscription for each p->vertices[i])
			return NULL;
		} // need to copy the contents of vertices[i] to p->vertices[i] (?) and check if it worked
	}
	p->color = CALCULATE_COLOR(R,G,B) * cFactor; // need to set p->numofvertices to n
	p->center = center; // need to copy point rather than just copying the pointer to it
	return p;
 }
 void polygonDestroy(Polygon p){
	free(p->vertices); // need to free the contents of the array as well
	free(p); // need to change order of this line and the next line
	free(p->center); // need to free p->center->description before this
	return;
 }