#include "Seaweed.h"
#include "Aquarium.h"
#include "Random.h"
#include "defs.h"
#include <ncurses.h>

Seaweed::Seaweed()
    : x(Random::intInRange(0, Aquarium::getInstance().getWidth())),
      y(Aquarium::getInstance().getHeight()),
      height(Random::intInRange(SEAWEED_MIN_HEIGHT, SEAWEED_MAX_HEIGHT)),
      speed(Random::floatInRange(0.1f, 0.3f)),
      lifetime(Random::intInRange(SEAWEED_MIN_LIFETIME, SEAWEED_MAX_LIFETIME)) {
}

void Seaweed::update() noexcept {
  frame += speed;
  if (frame >= 1.0f) {
    pattern_flipped = !pattern_flipped;
    frame -= 1.0f;
  }
  --lifetime;
}

void Seaweed::draw() const {
  auto &aquarium = Aquarium::getInstance();

  std::string line(1, '\0');
  std::string colorLine(1, 'g');

  for (size_t i = 0; i < height; ++i) {
    // Determine character and position for this segment
    const bool use_left = (i % 2 == 0) ^ pattern_flipped;
    const char ch = use_left ? PATTERN_LEFT : PATTERN_RIGHT;
    const int drawX = static_cast<int>(x) + (use_left ? 0 : 1);
    const int drawY = y - static_cast<int>(i);

    line[0] = ch;
    aquarium.drawToBackBuffer(drawY, drawX, 0, line, colorLine);
  }
}