#include "vector.h"
#include "derived.h"

vector *v[NUM_VECTORS];

void initialize_all() {
  v[0] = make_vector(3.3, 5.5);
  v[1] = make_vector(5.5, -3.3);
  v[2] = make_vector(8.2343, 6.34);
  v[3] = make_vector(4.2, 7.4);
  v[4] = make_vector(0, 0);
  v[5] = make_vector(3.3, 5.5);
  v[6] = make_vector(5.5, -3.3);
  v[7] = make_vector(8.2343, 6.34);
  v[8] = make_vector(4.2, 7.4);
}

void print_coordinates(int index) {
  float x = x_coordinate(v[index]);
  float y = y_coordinate(v[index]);
  printf("\tv[%d] = ( %f , %f )\n", index, x, y);
}

void test_mul(int index, float r) {
  mul(v[index], r);
  printf("\tv[%d] = v[%d] * %f \n", index, index, r); 
  print_coordinates(index);
}

void test_sum(int index, float a, float b) {
  sum(v[index], a, b);
  printf("\tv[%d] = v[%d] + (%f, %f)\n", index, index, a, b); 
  print_coordinates(5);
}

void test_magnitude(int index) {
  printf("\tmag(v[%d]) = %f\n", index, magnitude(v[index]));
}

void test_angle(int index) {
  printf("\tangle(v[%d]) = %f\n", index, angle(v[index]));
}

void test_orthogonal(int index1, int index2) {
  printf("\tv[%d] and v[%d] orthogonal? ", index1, index2);
  if (orthogonal(v[index1], 
		x_coordinate(v[index2]), y_coordinate(v[index2])))
     printf("YES\n");
  else
     printf("NO\n");
}



main() {

  int counter;

  initialize_all();

  printf("================\n");
  printf("Testing vector.c\n");
  printf("================\n\n");

  printf("Testing \"make_vector\", \"x_coordinate\" and \"y_coordinate\"\n");
  for(counter=0; counter < NUM_VECTORS; counter++) 
    print_coordinates(counter);
  printf("\n\n");

  printf("Testing \"mul\"\n");
  test_mul(2, 3.5);
  test_mul(3, 3.6);
  test_mul(4, -4.21);
  printf("\n\n");

  printf("Testing \"sum\"\n");
  test_sum(5, 5.3, 2.7);
  test_sum(6, -7.4, 9.2);
  test_sum(7, 2.7, 1.1);
  printf("\n\n");


  printf("=================\n");
  printf("Testing derived.c\n");
  printf("=================\n\n");

  printf("Testing \"magnitude\"\n");
  test_magnitude(0);
  test_magnitude(1);
  test_magnitude(2);
  test_magnitude(3);
  printf("\n\n");

  printf("Testing \"angle\"\n");
  test_angle(4);
  test_angle(5);
  test_angle(6);
  test_angle(7);
  printf("\n\n");

  printf("Testing \"orthogonal\"\n");
  test_orthogonal(0,1);
  test_orthogonal(1,2);
  test_orthogonal(2,3);
  test_orthogonal(3,2);
  test_orthogonal(3,4);
}