turings-tarpit/tests/game_engine.cpp

#include <catch2/catch_test_macros.hpp>
#include "../game_engine.hpp"
#include <fmt/core.h>

using namespace fmt;

TEST_CASE("game engine death cycle", "[game_engine]") {
  // test fails on purpose right now
  GameEngine game{4};

  for(int i = 0; i < 4; i++) {
    game.event(GameEvent::BUILD_START);
    REQUIRE(game.hit_points == 4);
    // confirm streaks, hit_taken, rounds are maintained
    REQUIRE(game.streak == 0);
    REQUIRE(game.rounds == i);

    game.event(GameEvent::HIT, "error");
    REQUIRE(game.hit_points == 0);

    // in dead state these are ignored
    game.event(GameEvent::HIT);
    game.event(GameEvent::HIT);
    game.event(GameEvent::HIT);
    game.event(GameEvent::HIT);
    REQUIRE(game.hit_points == 0);
    REQUIRE(game.is_dead() == true);

    // this is ignored too for now
    game.event(GameEvent::BUILD_FAILED);
    REQUIRE(game.hits_taken == 5);
    REQUIRE(game.hit_points == 0);
    REQUIRE(game.is_dead() == true);
    game.event(GameEvent::BUILD_DONE);
  }
}

TEST_CASE("game can do success build", "[game_engine]") {
  GameEngine game{10};

  // test fails on purpose right now
  for(int i = 0; i < 10; i++) {
    game.event(GameEvent::BUILD_START);
    game.event(GameEvent::BUILD_SUCCESS);
    REQUIRE(game.hits_taken == 0);
    REQUIRE(game.hit_points == game.starting_hp);
    // confirm streaks, hit_taken, rounds are maintained
    REQUIRE(game.streak == i);
    REQUIRE(game.rounds == i);
    REQUIRE(game.is_dead() == false);
    game.event(GameEvent::BUILD_DONE);
  }

  // if you hit a streak of 10 then you get one of two bonuses
  // 1. 10% more hp
  // 2. 1 free death

  game.add_bonus(GameBonus::MORE_HP);
  REQUIRE(game.max_hp() > game.starting_hp);
  REQUIRE(game.hit_points == game.starting_hp * game.hp_bonus);
  REQUIRE(game.hit_points == game.max_hp());

  game.add_bonus(GameBonus::FREE_DEATH);
  REQUIRE(game.free_death == true);

  game.event(GameEvent::BUILD_START);
  game.event(GameEvent::HIT, "error");
  game.event(GameEvent::HIT, "error");
  game.event(GameEvent::HIT, "error");

  REQUIRE(game.is_dead() == false);
  REQUIRE(game.streak == 10);
  game.event(GameEvent::BUILD_FAILED);
  game.event(GameEvent::BUILD_DONE);

  REQUIRE(game.streak == 10);
  REQUIRE(game.free_death == false);
  REQUIRE(game.hit_points == int(game.max_hp() * 0.5f));
}