HOWTO.txt

// Demonstration of how to use s3eIOSiCloud Marmalade extension

#include "s3eIOSiCloud.h"

struct MySaveGame
{
	int a;
	float b;
	bool c;
};

bool isiCloudEnabled = false;
MySaveGame mySaveGame;

int MyMergeFunc(void* systemData, void*)
{
	s3eIOSiCloudDataToMergeWith* data = (s3eIOSiCloudDataToMergeWith*) systemData;
	
	// Merge incoming data with current game state
	
	[...]
	
	// Save locally to cache://
	
	bool savedLocally = [...]
	
	// Return success or failure
	
	return savedLocally ? 0 : 1;
}

void Startup()
{
	if (!s3eIOSiCloudAvailable())
		return;
		
	isiCloudEnabled =
		s3eIOSiCloudRegister(S3E_IOSICLOUD_CALLBACK_MERGE, MyMergeFunc, NULL) == S3E_RESULT_SUCCESS &&
		s3eIOSiCloudStart("my_save_game.txt", S3E_TRUE) == S3E_RESULT_SUCCESS;
}

void Shutdown()
{
	if (isiCloudEnabled)
	{
		s3eIOSiCloudStop();
		s3eIOSiCloudUnregister(S3E_IOSICLOUD_CALLBACK_MERGE, MyMergeFunc);
	}
}

void Update()
{
	if (isiCloudEnabled)
		s3eIOSiCloudTick();
}

void SaveGame()
{
	// Save locally to cache://
	
	[...]
	
	// Save to iCloud

	if (isiCloudEnabled)
		s3eIOSiCloudWrite(&mySaveGame, sizeof(MySaveGame));
}