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

#include "game.h"
#include "movement.h"
#include "powerup.h"
#include "const.h"

// powerup should spawn every other difficulty band
// so the first spawn should happen somewhere 10 + (20 * rand())
int determinePowerupCooldownTime(int difficulty) {
  if (difficulty > MAX_DIFFICULTY) exit(1);

  return difficultyBands[difficulty] + rand() % difficultyBands[difficulty];
}

// if every shot lands, you should run out slightly before the next powerup
// should be available
// so for the first rounds should be difficulty(1) + difficulty(2) % rand() or so
int determineShotgunRounds(int difficulty) {
  if (difficulty > MAX_DIFFICULTY) exit(1);

  return difficultyBands[difficulty] +
    difficultyBands[difficulty] / 2 +
    rand() % (difficultyBands[difficulty] / 2);
}

void processPowerupCooldown(
  struct PlayerPowerup *playerPowerup,
  struct GlobalGameState *globalGameState,
  struct RabbitWeaponry *rabbitWeaponry,
  int killCount
) {
  if (playerPowerup->isActive) return;
  if (rabbitWeaponry->currentWeapon != WEAPON_TYPE_SINGLE_SHOT_GUN) return;

  playerPowerup->cooldown -= killCount;
  if (playerPowerup->cooldown <= 0) {
    playerPowerup->x = TILE_SIZE + rand() % ((ARENA_WIDTH_TILES - 2) * TILE_SIZE);
    playerPowerup->y = TILE_SIZE + rand() % ((ARENA_HEIGHT_TILES - 2) * TILE_SIZE);
    playerPowerup->isActive = 1;
    playerPowerup->willBeInactive = 0;

    playerPowerup->cooldown = determinePowerupCooldownTime(globalGameState->difficulty);
  }
}