// C Source File
// Created 11/26/2006; 2:52:38 PM
// Star Blaster by Tyler Cassidy
// Version 1.00
// Email: tyler@tylerc.org || altadogsledder89@yahoo.ca

//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.

//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.

#include <tigcclib.h>
#include "include.h"

GAMESCORES *Scores;
GAMEPROFILES *Profiles;
GAMESETTINGS *Settings;

/* Allocate Space for Scores, Settings and Profiles */
short SaveAlloc(void)
{
	Scores = malloc(sizeof(GAMESCORES));
	if (!Scores) return 0;
	Profiles = malloc(sizeof(GAMEPROFILES));
	if (!Profiles) return 0;
	Settings = malloc(sizeof(GAMESETTINGS));
	if (!Settings) return 0;
	
	memset(&Scores, 0, sizeof(GAMESCORES));
	memset(&Profiles, 0, sizeof(GAMEPROFILES));
	memset(&Settings, 0, sizeof(GAMESETTINGS));
	
	return 1;
}

/* Load Save File */
void LoadSaveFile(void)
{
	GAMESAVE *LoadData;
	SYM_ENTRY *LoadEntry;
	
	LoadEntry = SymFindPtr(SYMSTR("starbsav"), 0);
	
	// Error Testing
	if (!LoadEntry) return;
	if (!LoadEntry->handle) return;
	
	LoadData = HeapDeref(LoadEntry->handle);
	memcpy(&Scores, &LoadData->Scores, sizeof(GAMESCORES));
	memcpy(&Profiles, &LoadData->Profiles, sizeof(GAMEPROFILES));
	memcpy(&Settings, &LoadData->Settings, sizeof(GAMESETTINGS));
}

short WriteSaveFile(void)
{
	GAMESAVE *WriteData;
	HSym SaveSym; // VAT Symbol
	SYM_ENTRY *SaveEntry; // File Information
	HANDLE SaveHandle; // File Data
	
	// Delete old Savefile it exists
	if ((SaveSym = SymFind(SYMSTR("starbsav"))).folder)
	{
		if (DerefSym(SaveSym)->flags.bits.archived)
		  EM_moveSymFromExtMem(NULL, SaveSym); // Unarchive
		SymDel(SYMSTR("starbsav"));
	}
	
	// Start new VAT Symbol
	SaveSym = SymAdd(SYMSTR("starbsav"));
	if (!SaveSym.folder) return 0;
	
	// Allocate Space in Heap
	SaveHandle = HeapAlloc(sizeof(GAMESAVE));
	if (!SaveHandle)
	{
		SymDel(SYMSTR("starbsav"));
		return 0;
	}
	WriteData = HeapDeref(SaveHandle);
	
	// Get size than save
	WriteData->size = sizeof(GAMESCORES) + sizeof(GAMEPROFILES) + sizeof(GAMESETTINGS) + 7;
	memcpy(&WriteData->Scores, &Scores, sizeof(GAMESCORES));
	memcpy(&WriteData->Profiles, &Profiles, sizeof(GAMEPROFILES));
	memcpy(&WriteData->Settings, &Settings, sizeof(GAMESETTINGS));
	memcpy(&WriteData->othtag, "\0STAR\0\xF8", 7);
	
	// Save to Heap now
	SaveEntry = DerefSym(SaveSym);
	SaveEntry->handle = SaveHandle;
	
	// Archive
	SetIntLevel(HIGH_LVL);
	memcpy(GameGfx.HiddenDark, GameGfx.ActiveDark, LCD_SIZE);
	memcpy(GameGfx.HiddenLight, GameGfx.ActiveLight, LCD_SIZE);
	EM_moveSymToExtMem(NULL, SaveSym); // Archive File
	memcpy(GameGfx.ActiveDark, GameGfx.HiddenDark, LCD_SIZE);
	memcpy(GameGfx.ActiveLight, GameGfx.HiddenLight, LCD_SIZE);
	
	return 1;
}

/* Free Allocated Structures */
void SaveFree(void)
{
	free(Scores);
	free(Profiles);
	free(Settings);
}