Set view to camera entity setted up in the editor with C++

Set view to camera entity setted up in the editor with C++

#1 by DarkWolf

So i've a camera in my level that i set up in the editor and it has some flow graph nodes for UI in it and i want to set its view by c++ but i don't undestend why m i getting a null pointer at m_pGameCameraEntity to store a camera entity that is in the level, but it get it's ID in m_EntityId? makes no sense how it gets the id if m_pGameCameraEntity it's null pointer?

RTSCamera.h

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#pragma once
#include "IViewSystem.h"

struct RTSCamera
{
	//Constructor
	RTSCamera();

	//Destructor
	~RTSCamera(){}

	//Member Functions
	void CreateRTSCamera();
	string GetLevelName();
	void SetViewParams(unsigned int XameraId, EntityId GameCameradId, IEntity *GameCamera);

	//Member Variables
	SViewParams m_CurViewParams;
	SViewParams m_NewViewParams;
	IViewSystem *m_pIViewSystem;
	IEntitySystem *m_pIEntitySystem;
	EntityId m_EntityId;
	IGameFramework *m_pGameFrameWork;
	IView *m_pRTSCameraView;
	IEntity *m_pGameCameraEntity;
	uint8 m_RTSCameraViewID;
	bool CameraExist;
};

RTSCamera.cpp

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#include "StdAfx.h"
#include "RTSCamera.h"
#include "CryEntitySystem/IEntitySystem.h"
#include "CryGame/IGameFramework.h"
RTSCamera::RTSCamera()
{
}

string RTSCamera::GetLevelName()
{
	//m_pGameCameraEntity = gEnv->pGame->GetIGameFramework();

	m_pGameFrameWork = g_pGame->GetIGameFramework();

	string levelName = m_pGameFrameWork->GetLevelName();

	return levelName;
}

void RTSCamera::CreateRTSCamera()
{
	//Assign the IViewSystem to a pointer named m_pIViewSystem
	m_pIViewSystem = gEnv->pGameFramework->GetIViewSystem();

	//Assign the IEntitySystem to a pointer named m_pIEntitySystem
	m_pIEntitySystem = gEnv->pSystem->GetIEntitySystem();

	//Assign camera entity in the game world to a pointer named m_pGameCameraEntity
	m_pGameCameraEntity = m_pIEntitySystem->FindEntityByName("GameCamera");

	//Get GameCamera's EntityId and store it into a variable named m_EntityId
	m_EntityId = m_pGameCameraEntity->GetId();

	//Active the Camera Entity
	m_pGameCameraEntity->Activate(true);

	//Create a new View and assign it to a pointer named m_pIView
	m_pRTSCameraView = m_pIViewSystem->CreateView();

	//Get the view Id of our new camera and assign it to a variable named RTSCameraViewId
	m_RTSCameraViewID = m_pIViewSystem->GetViewId(m_pRTSCameraView);

	//Remove the currently active view
	m_pIViewSystem->RemoveView(m_pIViewSystem->GetActiveViewId());

	//Set our new view as the active one
	m_pIViewSystem->SetActiveView(m_pRTSCameraView);

	//Give Initial values to our camera
	SetViewParams(m_RTSCameraViewID, m_EntityId, m_pGameCameraEntity);

	//Set View params for our camera
	m_pRTSCameraView->SetCurrentParams(m_CurViewParams);

	//Link our new view to the game camera entity in our world
	m_pRTSCameraView->LinkTo(m_pGameCameraEntity);	
}


void RTSCamera::SetViewParams(unsigned int CameraId, EntityId GameCameraId, IEntity *GameCamera)
{
	m_CurViewParams.position = GameCamera->GetWorldPos();
	m_CurViewParams.rotation = GameCamera->GetWorldRotation();
	m_CurViewParams.nearplane = 0.0f;
	m_CurViewParams.fov = 0.6f;
	m_CurViewParams.viewID = CameraId;
	m_CurViewParams.groundOnly = false;
	m_CurViewParams.shakingRatio = 0.0f;
	m_CurViewParams.currentShakeQuat = IDENTITY;
	m_CurViewParams.currentShakeShift = ZERO;
	m_CurViewParams.idTarget = GameCameraId;
	m_CurViewParams.targetPos = GameCamera->GetWorldPos();
	m_CurViewParams.angleVel = 0.0f;
	m_CurViewParams.vel = 0.0f;
	m_CurViewParams.dist = 0.0f;
	m_CurViewParams.blend = false;
}

The code is initialize on CGame::Update function in Game.cpp

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string LevelName = RTSCamera_01.GetLevelName();
	if (LevelName != EmptyString)
	{
		CryLogAlways("CRYLOG: Level "+ LevelName +" Loaded!");
		RTSCamera_01.CreateRTSCamera();
		EmptyString = LevelName;
	}

It compiles and runs fine, i load the level but the view is not set on the camera i set up in the editor, the view goes to the usual first person and the code only breaks when i click exit level, i've made sure the code runs when the level is loaded by logging the function initialization, and yes i've done export to engine in the editor.

fun fact: if i enter in game mode in the editor all workes just fine -_-'

Please give me some lights!!! thanks.

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Re: Set view to camera entity setted up in the editor with C++

#2 by fkhaller

Where do you name and register the entity as gamecamera? As far as I am aware all entities need to either extend ISimpleExtention or CNativeEntityBase and all camera's need to extend IGameObjectView.

Re: Set view to camera entity setted up in the editor with C++

#3 by DarkWolf

Where do you name and register the entity as gamecamera? As far as I am aware all entities need to either extend ISimpleExtention or CNativeEntityBase and all camera's need to extend IGameObjectView.

GameCamera is the camera name on the editor, i didn't find anything related to ISimpleExtention nor CNativeEntityBase and IGameObjectView is for updating and i already have something that takes care of that, i beleve that you didn't understood the problem, i'm going to simplefy it, How to store an Entity in a variable?

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Re: Set view to camera entity setted up in the editor with C++

#4 by fkhaller

An IEntity pointer I guess. Maybe i'm a bit behind... I am still in 5.2.