<?php

namespace Tests;

use App\Game\Info;
use App\Game\Weapons;

final class PlayerTest extends WorldTestCase
{
    public function testThePlayerWalksForwardAndStopsAtTheWall(): void
    {
        $this->load('test');
        $mo = $this->placePlayer(4, 9, 90);
        $y0 = $mo->y;
        $this->tics(20, ['forward' => 1]);
        self::assertGreaterThan($y0 + 50, $mo->y, 'walked north');
        $this->tics(200, ['forward' => 2]);
        // the room ends at the door's wall (row 4): the player stays inside
        [, $wallY] = $this->cell(4, 4);
        self::assertLessThan($wallY - 32, $mo->y + $mo->radius - 0.01);
    }

    public function testThePlayerTurns(): void
    {
        $this->load('test');
        $mo = $this->placePlayer(4, 9, 90);
        $this->tics(10, ['turn' => 0.1]);
        self::assertEqualsWithDelta(deg2rad(90) + 1.0, $mo->angle, 0.001);
    }

    public function testThePlayerClimbsAStepButNotAWall(): void
    {
        $this->load('test');
        // the step 's' (16 high) is in column 6, rows 5 and 8
        $mo = $this->placePlayer(5, 8, 0);
        for ($i = 0; $i < 40 && $mo->sector->char !== 's'; $i++) {
            $this->tics(1, ['forward' => 1]);
        }
        $this->tics(2);
        self::assertSame('s', $mo->sector->char);
        self::assertSame(16.0, $mo->z, 'on the step');
        // the pillar '#' (column 3, row 7) stops the player
        $mo = $this->placePlayer(1, 7, 0);
        $this->tics(60, ['forward' => 1]);
        self::assertLessThan(3 * 64 - $mo->radius + 0.01, $mo->x);
    }

    public function testAcidHurts(): void
    {
        $this->load('test');
        $this->noMonsters();
        $this->placePlayer(9, 8, 0);
        self::assertSame(-16.0, $this->world->player->mo->sector->floor);
        $this->tics(70);
        self::assertLessThan(100, $this->world->player->health);
    }

    public function testTheSidearmUsesAmmunitionAndTheWeaponsSwitch(): void
    {
        $this->load('test');
        $p = $this->world->player;
        $this->tics(30);
        self::assertSame('READY', $p->wState);
        $this->tics(12, ['fire' => true]);
        self::assertLessThan(50, $p->ammo['bullets']);
        $this->tics(30);
        $this->tics(40, ['weapon' => 1]);
        self::assertSame(1, $p->weapon);
        self::assertSame('READY', $p->wState);
        self::assertSame('WRCH', Weapons::LIST[$p->weapon]['sprite']);
    }

    public function testPickingUpAMedkitHeals(): void
    {
        $this->load('test');
        $this->noMonsters();
        $mo = $this->placePlayer(4, 9, 90);
        $this->world->player->health = 50;
        $this->world->spawn('medkit', $mo->x, $mo->y + 40, null);
        $this->tics(15, ['forward' => 1]);
        self::assertSame(75, $this->world->player->health);
        self::assertStringContainsString('MEDKIT', $this->world->message);
    }

    public function testAWeaponPickupGivesItAndBringsItUp(): void
    {
        $this->load('test');
        $this->noMonsters();
        $mo = $this->placePlayer(4, 9, 90);
        $this->world->spawn('scattergun', $mo->x, $mo->y + 40, null);
        $this->tics(60, ['forward' => 1]);
        self::assertTrue($this->world->player->weapons[3]);
        self::assertSame(3, $this->world->player->weapon);
        self::assertGreaterThan(0, $this->world->player->ammo['shells']);
        self::assertTrue(Info::SPECIAL > 0);
    }
}