//
// ScreenLayer.cpp
// PocketNES
//
// Created by tianshuai on 7/26/15.
//
//

#include "ScreenLayer.h"

#include "PocketNES.h"
#include "MenuScene.h"
#include "AudioPlayer.h"

USING_NS_CC;
ScreenLayer::~ScreenLayer()
{
 if (_texture != NULL)
 {
 delete _texture;
 }
 if (nesCore != NULL)
 {
 nesCore->powerOff();
 nesCore = NULL;
 }
}
bool ScreenLayer::init()
{
 if (!Layer::init())
 {
 return false;
 }
 isStart = false;
 nesCore = NULL;
 Size visibleSize = Director::getInstance()->getVisibleSize();
 Vec2 origin = Director::getInstance()->getVisibleOrigin();
 
 for (int i = 0; i < _screen_width * _screen_height; i++)
 {
 unsigned char c = (unsigned char)cocos2d::random(0, 255);
 _frameBuffer8888[i] = c | (c << 8) | (c << 16) | (255 << 24);
 }
 
 _texture = new Texture2D;
 Size contentSize;
 _texture->initWithData(_frameBuffer8888, _screen_width * _screen_height * 4, Texture2D::PixelFormat::RGBA8888, _screen_width,_screen_height, contentSize);
 
 Sprite *screen = Sprite::createWithTexture(_texture);
 screen->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));
 screen->setScale( visibleSize.height / screen->getContentSize().height );
 this->addChild(screen);
 
 MenuItemImage *gameItem = MenuItemImage::create("ui/Games.png", "ui/Games.png", CC_CALLBACK_1(ScreenLayer::gameListCallBack, this));
 gameItem->setScale(visibleSize.height/8/64);
 gameItem->setPosition(Vec2((gameItem->getContentSize().width*gameItem->getScale())/2, visibleSize.height - (gameItem->getContentSize().height*gameItem->getScale())/2));
 MenuItemImage *setting = MenuItemImage::create("ui/Settings.png", "ui/Settings.png", CC_CALLBACK_1(ScreenLayer::setting, this));
 setting->setScale(visibleSize.height/8/64);
 setting->setPosition(Vec2(visibleSize.width- (setting->getContentSize().width*setting->getScale())/2, visibleSize.height - (setting->getContentSize().height*setting->getScale())/2));
 
 Menu *menu = Menu::create(gameItem,setting, NULL);
 menu->setPosition(0,0);
 this->addChild(menu);
 


 return true;
}

void ScreenLayer::onEnter()
{
 Layer::onEnter();

 if (havaGame == true)
 {
 key.init();
 if (nesCore != NULL )
 {
 nesCore->powerOff();
 nesCore = NULL;
 }
 startEmu();
 }
 
 scheduleUpdate();
}

bool ScreenLayer::startEmu(bool shouldLoadState)
{
 isStart = true;
 nesCore = new NesCore("nes/NstDatabase.dat");
 
 nesCore->gamePath = currentGame.gamePath;
 nesCore->gameSavePath = currentGame.gameSavePath;
 nesCore->initlize();
 bool success = nesCore->powerOn();
 
 //printf("%s loading image at path %s", __PRETTY_FUNCTION__, game.gamePath.c_str());
 
 if (!success)
 {
 MessageBox("There was an error loading the selected game image.", "Unable to Load Game ROM");
 isStart = false;
 return false;
 }
 
 if (shouldLoadState)
 {
 nesCore->loadState();
 }
 
 nesCore->activatePad1();
 
 nesCore->startEmulation();
 return true;
}

void ScreenLayer::update(float dt)
{
 if (!isStart)
 {
 for (int i = 0; i < _screen_width * _screen_height; i++)
 {
 unsigned char c = (unsigned char)cocos2d::random(0, 255);
 _frameBuffer8888[i] = c | (c << 8) | (c << 16) | (255 << 24);
 }
 }
 _texture->updateWithData(_frameBuffer8888, 0, 0, _screen_width, _screen_height);
}

void ScreenLayer::gameListCallBack(Ref* pSender)
{
 havaGame = false;
 MenuScene *menuScene = MenuScene::create();
 TransitionSlideInL *transtionScene = TransitionSlideInL::create(0.5, menuScene);
 Director::getInstance()->pushScene(transtionScene);
}

void ScreenLayer::setting(Ref* pSender)
{

}