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<?php
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declare(strict_types=1);
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namespace App\Game;
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use App\Game\Entities\Bullet;
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use App\Game\Entities\Zombie;
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final class Player extends GameObject
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{
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public InputState $input;
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private EntityList $container;
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private Room $room;
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public float $moveSpeed;
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public float $fireRate;
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public float $recoilSpeed;
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public float $recoilDamping;
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public float $bulletSpeed;
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public float $bulletSize;
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public int $bulletCount;
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public float $bulletSpread;
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public int $damage;
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private float $baseFireRate;
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private int $baseDamage;
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private int $baseBulletCount;
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private float $baseBulletSpeed;
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public int $maxUpgradeLevel;
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/** @var array<string, int> */
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public array $upgrades = ['rapid' => 0, 'damage' => 0, 'multishot' => 0, 'speed' => 0];
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public float $size;
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public string $name;
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public string $id;
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public int $health;
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public int $maxHealth;
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public int $score = 0;
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public bool $dead = false;
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public bool $autoAim = false;
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private float $cooldown = 0.0;
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private Vector2 $aimDirection;
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private Vector2 $recoil;
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private float $damageCooldown = 0.0;
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private float $time = 0.0;
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public function __construct(
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string $playerId,
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string $name,
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InputState $input,
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EntityList $container,
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Room $room,
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array $config = [],
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) {
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parent::__construct(
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$config['x'] ?? $room->width / 2.0,
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$config['y'] ?? $room->height / 2.0,
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);
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$this->input = $input;
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$this->container = $container;
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$this->room = $room;
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$this->id = $playerId;
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$this->name = $name;
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$this->moveSpeed = $config['moveSpeed'] ?? 420.0;
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$this->fireRate = $config['fireRate'] ?? 0.2;
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$this->recoilSpeed = $config['recoilSpeed'] ?? 100.0;
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$this->recoilDamping = $config['recoilDamping'] ?? 15.0;
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$this->bulletSpeed = $config['bulletSpeed'] ?? 800.0;
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$this->bulletSize = $config['bulletSize'] ?? 8.0;
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$this->bulletCount = $config['bulletCount'] ?? 1;
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$this->bulletSpread = $config['bulletSpread'] ?? 0.09;
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$this->damage = $config['damage'] ?? 1;
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$this->baseFireRate = $this->fireRate;
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$this->baseDamage = $this->damage;
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$this->baseBulletCount = $this->bulletCount;
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$this->baseBulletSpeed = $this->bulletSpeed;
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$this->maxUpgradeLevel = $config['maxUpgradeLevel'] ?? 3;
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$this->health = $config['health'] ?? 3;
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$this->maxHealth = $this->health;
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$this->size = $config['size'] ?? 24.0;
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$this->width = $this->size;
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$this->height = $this->size;
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$this->aimDirection = new Vector2(1.0, 0.0);
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$this->recoil = Vector2::zero();
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}
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public function kind(): string
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{
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return 'player';
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}
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public function update(float $dt): void
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{
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$this->time += $dt;
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$movement = new Vector2(0.0, 0.0);
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$keys = $this->input->keys;
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if (in_array('w', $keys, true) || in_array('arrowup', $keys, true)) {
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$movement = new Vector2($movement->x, $movement->y - 1.0);
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}
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if (in_array('s', $keys, true) || in_array('arrowdown', $keys, true)) {
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$movement = new Vector2($movement->x, $movement->y + 1.0);
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}
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if (in_array('a', $keys, true) || in_array('arrowleft', $keys, true)) {
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$movement = new Vector2($movement->x - 1.0, $movement->y);
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}
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if (in_array('d', $keys, true) || in_array('arrowright', $keys, true)) {
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$movement = new Vector2($movement->x + 1.0, $movement->y);
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}
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$moveVelocity = Vector2::zero();
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if ($movement->lengthSquared() > 0.0) {
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$moveVelocity = $movement->normalize()->mulS($this->moveSpeed);
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}
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$this->velocity = $this->recoil->lengthSquared() > 1.0
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? $moveVelocity->addV($this->recoil)
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: $moveVelocity;
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parent::update($dt);
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$maxX = max($this->width / 2.0, 0.0);
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$maxY = max($this->height / 2.0, 0.0);
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$this->pos = new Vector2(
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min(max($this->pos->x, $maxX), $this->room->width - $maxX),
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min(max($this->pos->y, $maxY), $this->room->height - $maxY),
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);
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$aim = $this->input->aim;
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$autoAimActive = $this->input->autoAim || $this->autoAim;
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$hasTarget = false;
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if ($autoAimActive) {
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$nearest = $this->nearestZombie();
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if ($nearest !== null) {
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$hasTarget = true;
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$toEnemy = $nearest->pos->subV($this->pos);
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if ($toEnemy->lengthSquared() > 1.0) {
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$aim = $toEnemy;
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}
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}
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}
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if ($aim->lengthSquared() > 1.0) {
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$this->aimDirection = $aim->divS($aim->length());
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} elseif ($aim->lengthSquared() > 0.01 && $this->input->aim !== null && ! $autoAimActive) {
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// Raw normalized direction from the client when not auto-aiming.
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$this->aimDirection = $aim->normalize();
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}
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$this->recoil = $this->recoil->mulS(max(0.0, 1 - $dt * $this->recoilDamping));
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$this->damageCooldown = max(0.0, $this->damageCooldown - $dt);
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$this->cooldown -= $dt;
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if ($this->cooldown <= 0.0 && ($this->input->fire || ($autoAimActive && $hasTarget))) {
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$this->cooldown = $this->fireRate;
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$this->shoot();
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}
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}
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public function nearestZombie(): ?Zombie
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{
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$best = null;
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$bestDistSq = INF;
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foreach ($this->container as $obj) {
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if (! $obj instanceof Zombie) {
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continue;
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}
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$delta = $obj->pos->subV($this->pos);
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$distSq = $delta->lengthSquared();
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if ($distSq < $bestDistSq) {
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$bestDistSq = $distSq;
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$best = $obj;
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}
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}
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return $best;
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}
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public function shoot(): void
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{
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$aimAngle = atan2($this->aimDirection->y, $this->aimDirection->x);
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$this->recoil = $this->aimDirection->mulS(-$this->recoilSpeed);
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$offset = (($this->bulletCount - 1) / 2.0) * $this->bulletSpread;
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for ($i = 0; $i < $this->bulletCount; $i++) {
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$angle = $aimAngle - $offset + $i * $this->bulletSpread;
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$direction = new Vector2(cos($angle), sin($angle));
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$bullet = new Bullet(
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$this->pos->x,
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$this->pos->y,
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$direction,
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$this->container,
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$this->room,
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$this,
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$this->bulletSpeed,
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$this->bulletSize,
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$this->damage,
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);
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$this->container->append($bullet);
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}
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}
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public function applyUpgrade(string $type): bool
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{
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if (! array_key_exists($type, $this->upgrades)) {
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return false;
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}
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if ($this->upgrades[$type] >= $this->maxUpgradeLevel) {
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return false;
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}
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$this->upgrades[$type] += 1;
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switch ($type) {
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case 'rapid':
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$this->fireRate = max(0.06, $this->fireRate * 0.8);
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break;
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case 'damage':
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$this->damage += 1;
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break;
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case 'multishot':
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$this->bulletCount = min(7, $this->bulletCount + 1);
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break;
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case 'speed':
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$this->bulletSpeed = min(1800.0, $this->bulletSpeed * 1.15);
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break;
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}
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return true;
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}
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public function toSnapshot(): array
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{
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return [
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'id' => $this->id,
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'name' => $this->name,
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'x' => round($this->pos->x, 1),
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'y' => round($this->pos->y, 1),
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'aimX' => round($this->aimDirection->x, 3),
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'aimY' => round($this->aimDirection->y, 3),
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'hp' => $this->health,
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'mhp' => $this->maxHealth,
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'score' => $this->score,
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'dead' => $this->dead,
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'host' => $this->room->hostId === $this->id,
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'up' => $this->upgrades,
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];
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}
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/** Reset per-round state back to lobby defaults (keeps id/name/host). */
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public function resetForRound(): void
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{
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$this->pos = new Vector2($this->room->width / 2.0, $this->room->height / 2.0);
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$this->velocity = Vector2::zero();
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$this->recoil = Vector2::zero();
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$this->aimDirection = new Vector2(1.0, 0.0);
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$this->health = $this->maxHealth;
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$this->dead = false;
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$this->score = 0;
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$this->upgrades = ['rapid' => 0, 'damage' => 0, 'multishot' => 0, 'speed' => 0];
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$this->fireRate = $this->baseFireRate;
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$this->bulletSpeed = $this->baseBulletSpeed;
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$this->bulletCount = $this->baseBulletCount;
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$this->damage = $this->baseDamage;
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$this->cooldown = 0.0;
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$this->damageCooldown = 0.0;
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$this->time = 0.0;
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}
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public function takeDamage(): void
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{
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if ($this->damageCooldown > 0.0) {
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return;
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}
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$this->damageCooldown = 0.5;
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$this->health -= 1;
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if ($this->health <= 0 && ! $this->dead) {
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$this->dead = true;
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}
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}
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public function addScore(int $points): void
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{
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$this->score += $points;
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}
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}
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