#include "utils.h"

Vector2 randomDirection2(int seed, int* nextSeed)
{
  Vector2 direction;
  direction.x = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
  direction.y = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
  direction.x -= RANDOM_DIRECTION_UNITS / 2.0;
  direction.y -= RANDOM_DIRECTION_UNITS / 2.0;

  if (nextSeed != NULL)
  {
    *nextSeed = seed;
  }

  return Vector2Normalize(direction);
}

Vector3 randomDirection3(int seed, int* nextSeed)
{
  Vector3 direction;
  direction.x = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
  direction.y = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
  direction.z = FT_RANDOM16(seed) % RANDOM_DIRECTION_UNITS;
  direction.x -= RANDOM_DIRECTION_UNITS / 2.0;
  direction.y -= RANDOM_DIRECTION_UNITS / 2.0;
  direction.z -= RANDOM_DIRECTION_UNITS / 2.0;

  if (nextSeed != NULL)
  {
    *nextSeed = seed;
  }

  return Vector3Normalize(direction);
}

Image colorsToImage(Color* colors, int width, int height)
{
  return (Image){
    .data = colors,
    .width = width,
    .height = height,
    .format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8,
    .mipmaps = 1
  };
}

size_t getStringLength(const char* text, size_t maxLength)
{
  size_t stringLength = 0;

  while (stringLength < maxLength && text[stringLength] != '\0')
  {
    ++stringLength;
  }

  return stringLength;
}

// Why does the universe feel strange to exist in?