redgpu/ezEngine: An open source C++ game engine.

Code/Samples/Asteroids/GameState.cpp
129 строк4 KB
Jan Krassnigg
Added component to trigger scene transitions (#1363)
09 авг 2024, 15:51
09 авг 2024, 15:51f15750f
#include "GameState.h"
#include <Core/ResourceManager/ResourceManager.h>
#include <Foundation/Configuration/CVar.h>
#include <Foundation/IO/FileSystem/DataDirTypeFolder.h>
#include <Foundation/IO/FileSystem/FileSystem.h>
#include <Foundation/Time/Clock.h>

#include <Core/Input/DeviceTypes/Controller.h>
#include <Core/System/ControllerInput.h>
#include <Core/System/Window.h>
#include <GameEngine/GameApplication/GameApplication.h>

EZ_APPLICATION_ENTRY_POINT(ezGameApplication, "Asteroids", "Data/Samples/Asteroids");

const char* szPlayerActions[MaxPlayerActions] = {"Forwards", "Backwards", "Left", "Right", "RotLeft", "RotRight", "Shoot"};
const char* szControlerKeys[MaxPlayerActions] = {"leftstick_posy", "leftstick_negy", "leftstick_negx", "leftstick_posx", "rightstick_negx", "rightstick_posx", "right_trigger"};

namespace
{
  static void RegisterInputAction(const char* szInputSet, const char* szInputAction, const char* szKey1, const char* szKey2 = nullptr, const char* szKey3 = nullptr)
  {
    ezInputActionConfig cfg;

    cfg = ezInputManager::GetInputActionConfig(szInputSet, szInputAction);
    cfg.m_bApplyTimeScaling = true;

    if (szKey1 != nullptr)
      cfg.m_sInputSlotTrigger[0] = szKey1;
    if (szKey2 != nullptr)
      cfg.m_sInputSlotTrigger[1] = szKey2;
    if (szKey3 != nullptr)
      cfg.m_sInputSlotTrigger[2] = szKey3;

    ezInputManager::SetInputActionConfig(szInputSet, szInputAction, cfg, true);
  }
} // namespace

EZ_BEGIN_DYNAMIC_REFLECTED_TYPE(AsteroidGameState, 1, ezRTTIDefaultAllocator<AsteroidGameState>)
EZ_END_DYNAMIC_REFLECTED_TYPE;

AsteroidGameState::AsteroidGameState()
{
  m_pLevel = nullptr;
}

void AsteroidGameState::OnActivation(ezWorld* pWorld, ezStringView sStartPosition, const ezTransform& startPositionOffset)
{
  EZ_LOG_BLOCK("AsteroidGameState::Activate");

  SUPER::OnActivation(pWorld, sStartPosition, startPositionOffset);

  CreateGameLevel();
}

void AsteroidGameState::OnDeactivation()
{
  EZ_LOG_BLOCK("AsteroidGameState::Deactivate");

  DestroyLevel();

  SUPER::OnDeactivation();
}

void AsteroidGameState::BeforeWorldUpdate()
{
  m_MainCamera.SetCameraMode(ezCameraMode::OrthoFixedHeight, 40, -10, 10);
  m_MainCamera.LookAt(ezVec3::MakeZero(), ezVec3(0, 0, 1), ezVec3(0, 1, 0));
}

void AsteroidGameState::ConfigureInputActions()
{
  if (ezControllerInput::HasDevice())
  {
    ezControllerInput::GetDevice()->EnableVibration(0, true);
    ezControllerInput::GetDevice()->EnableVibration(1, true);
    ezControllerInput::GetDevice()->EnableVibration(2, true);
    ezControllerInput::GetDevice()->EnableVibration(3, true);
  }

  RegisterInputAction("Main", "ResetLevel", ezInputSlot_KeyReturn);

  // setup all controllers
  for (ezInt32 iPlayer = 0; iPlayer < MaxPlayers; ++iPlayer)
  {
    for (ezInt32 iAction = 0; iAction < MaxPlayerActions; ++iAction)
    {
      ezStringBuilder sAction;
      sAction.SetFormat("Player{0}_{1}", iPlayer, szPlayerActions[iAction]);

      ezStringBuilder sKey;
      sKey.SetFormat("controller{0}_{1}", iPlayer, szControlerKeys[iAction]);

      RegisterInputAction("Game", sAction.GetData(), sKey.GetData());
    }
  }

  // some more keyboard key bindings

  RegisterInputAction("Game", "Player1_Forwards", nullptr, ezInputSlot_KeyW);
  RegisterInputAction("Game", "Player1_Backwards", nullptr, ezInputSlot_KeyS);
  RegisterInputAction("Game", "Player1_Left", nullptr, ezInputSlot_KeyA);
  RegisterInputAction("Game", "Player1_Right", nullptr, ezInputSlot_KeyD);
  RegisterInputAction("Game", "Player1_Shoot", nullptr, ezInputSlot_KeySpace);
  RegisterInputAction("Game", "Player1_RotLeft", nullptr, ezInputSlot_KeyLeft);
  RegisterInputAction("Game", "Player1_RotRight", nullptr, ezInputSlot_KeyRight);
}

void AsteroidGameState::CreateGameLevel()
{
  m_pLevel = EZ_DEFAULT_NEW(Level);

  ezWorldDesc desc("Asteroids - World");
  m_pLevel->SetupLevel(EZ_DEFAULT_NEW(ezWorld, desc));

  ChangeMainWorld(m_pLevel->GetWorld(), {}, ezTransform::MakeIdentity());
}

void AsteroidGameState::DestroyLevel()
{
  m_pLevel = nullptr;
}

void AsteroidGameState::ProcessInput()
{
  EZ_LOCK(m_pMainWorld->GetWriteMarker());

  for (ezInt32 iPlayer = 0; iPlayer < MaxPlayers; ++iPlayer)
    m_pLevel->UpdatePlayerInput(iPlayer);
}