#include "Box2dView.h"
#include "GLES-Render.h"
#include "Test.h"

//#pragma comment(lib, "libgles_cm.lib")
//#pragma comment(lib, "libEGL.lib")

#define kAccelerometerFrequency 30
#define FRAMES_BETWEEN_PRESSES_FOR_DOUBLE_CLICK 10

extern int g_totalEntries;

Settings settings;

enum 
{
	kTagBox2DNode,
}; 


//------------------------------------------------------------------
//
// MenuLayer
//
//------------------------------------------------------------------
enum
{
	IDC_NEXT = 100,
	IDC_BACK,
	IDC_RESTART
};

MenuLayer::MenuLayer(void)
{
}

MenuLayer::~MenuLayer(void)
{
}

MenuLayer* MenuLayer::menuWithEntryID(int entryId)
{
	MenuLayer* pLayer = new MenuLayer();
	pLayer->initWithEntryID(entryId);
	pLayer->autorelease();

	return pLayer;
}

bool MenuLayer::initWithEntryID(int entryId)
{
	CGSize s = CCDirector::getSharedDirector()->getWinSize();
	
	m_entryID = entryId;
	
	setIsTouchEnabled( true );
	
	Box2DView* view = Box2DView::viewWithEntryID( entryId );
	addChild(view, 0, kTagBox2DNode);
	view->setScale(15);
	view->setAnchorPoint( ccp(0,0) );
	view->setPosition( ccp(s.width/2, s.height/3) );
	
	CCLabel* label = CCLabel::labelWithString(view->title().c_str(), "Arial", 28);
	addChild(label, 1);
	label->setPosition( ccp(s.width/2, s.height-50) );

	CCMenuItemImage *item1 = CCMenuItemImage::itemFromNormalImage("Images/b1.png", "Images/b2.png", this, menu_selector(MenuLayer::backCallback) );
	CCMenuItemImage *item2 = CCMenuItemImage::itemFromNormalImage("Images/r1.png","Images/r2.png", this, menu_selector(MenuLayer::restartCallback) );
	CCMenuItemImage *item3 = CCMenuItemImage::itemFromNormalImage("Images/f1.png", "Images/f2.png", this, menu_selector(MenuLayer::nextCallback) );

	CCMenu *menu = CCMenu::menuWithItems(item1, item2, item3, NULL);

	menu->setPosition( CGPointZero );
	item1->setPosition( ccp( s.width/2 - 100,30) );
	item2->setPosition( ccp( s.width/2, 30) );
	item3->setPosition( ccp( s.width/2 + 100,30) );
	
	addChild(menu, 1);	

	return TRUE;
}

void MenuLayer::restartCallback(NSObject* sender)
{
	CCScene* s = new Box2dTestBedScene();
	MenuLayer* box = MenuLayer::menuWithEntryID(m_entryID);
	s->addChild( box );
	CCDirector::getSharedDirector()->replaceScene( s );
    s->release();
}

void MenuLayer::nextCallback(NSObject* sender)
{
	CCScene* s = new Box2dTestBedScene();
	int next = m_entryID + 1;
	if( next >= g_totalEntries)
		next = 0;
	MenuLayer* box = MenuLayer::menuWithEntryID(next);
	s->addChild( box );
	CCDirector::getSharedDirector()->replaceScene( s );
    s->release();
}

void MenuLayer::backCallback(NSObject* sender)
{
	CCScene* s = new Box2dTestBedScene();
	int next = m_entryID - 1;
	if( next < 0 ) {
		next = g_totalEntries - 1;
	}
	
	MenuLayer* box = MenuLayer::menuWithEntryID(next);

	s->addChild( box );
	CCDirector::getSharedDirector()->replaceScene( s );
    s->release();
}

void MenuLayer::registerWithTouchDispatcher()
{
    CCTouchDispatcher::getSharedDispatcher()->addTargetedDelegate(this, 0, true);
}

bool MenuLayer::ccTouchBegan(CCTouch* touch, UIEvent* event)
{
	return true;
}

//-(void) MenuLayer::ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
//{
//}
//
//-(void) MenuLayer::ccTouchCancelled:(UITouch *)touch withEvent:(UIEvent *)event
//{
//}

void MenuLayer::ccTouchMoved(CCTouch* touch, UIEvent* event)
{
	CGPoint touchLocation = touch->locationInView( touch->view() );	
	CGPoint prevLocation = touch->previousLocationInView( touch->view() );	
	
	touchLocation = CCDirector::getSharedDirector()->convertToGL( touchLocation );
	prevLocation = CCDirector::getSharedDirector()->convertToGL( prevLocation );
	
	CGPoint diff = ccpSub(touchLocation,prevLocation);
	
	CCNode *node = getChildByTag( kTagBox2DNode );
	CGPoint currentPos = node->getPosition();
	node->setPosition( ccpAdd(currentPos, diff) );
}

//------------------------------------------------------------------
//
// Box2DView
//
//------------------------------------------------------------------
Box2DView::Box2DView(void)
{
}

Box2DView* Box2DView::viewWithEntryID(int entryId)
{
	Box2DView* pView = new Box2DView();
	pView->initWithEntryID(entryId);
	pView->autorelease();

	return pView;
}

bool Box2DView::initWithEntryID(int entryId)
{    
	setIsAccelerometerEnabled( true );
	setIsTouchEnabled( true );

	schedule( schedule_selector(Box2DView::tick) );

	m_entry = g_testEntries + entryId;
	m_test = m_entry->createFcn();		
		
    return TRUE;
}

std::string Box2DView::title()
{
	return std::string(m_entry->name);
}

void Box2DView::tick(ccTime dt)
{
	m_test->Step(&settings);
}

void Box2DView::draw()
{
	CCLayer::draw();

	// Default GL states: GL_TEXTURE_2D, GL_VERTEX_ARRAY, GL_COLOR_ARRAY, GL_TEXTURE_COORD_ARRAY
	// Needed states:  GL_VERTEX_ARRAY, 
	// Unneeded states: GL_TEXTURE_2D, GL_COLOR_ARRAY, GL_TEXTURE_COORD_ARRAY
	glDisable(GL_TEXTURE_2D);
	glDisableClientState(GL_COLOR_ARRAY);
	glDisableClientState(GL_TEXTURE_COORD_ARRAY);
	
	m_test->m_world->DrawDebugData();
	
	// restore default GL states
	glEnable(GL_TEXTURE_2D);
	glEnableClientState(GL_COLOR_ARRAY);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
}

Box2DView::~Box2DView()
{
	delete m_test;
}

void Box2DView::registerWithTouchDispatcher()
{
	// higher priority than dragging
    CCTouchDispatcher::getSharedDispatcher()->addTargetedDelegate(this, -10, true);
}

bool Box2DView::ccTouchBegan(CCTouch* touch, UIEvent* event)
{
	CGPoint touchLocation = touch->locationInView( touch->view() );	
	touchLocation = CCDirector::getSharedDirector()->convertToGL( touchLocation );

	CGPoint nodePosition = convertToNodeSpace( touchLocation );
//	NSLog(@"pos: %f,%f -> %f,%f", touchLocation.x, touchLocation.y, nodePosition.x, nodePosition.y);

	return m_test->MouseDown(b2Vec2(nodePosition.x,nodePosition.y));	
}

void Box2DView::ccTouchMoved(CCTouch* touch, UIEvent* event)
{
	CGPoint touchLocation = touch->locationInView( touch->view() );	
	touchLocation = CCDirector::getSharedDirector()->convertToGL( touchLocation );
	CGPoint nodePosition = convertToNodeSpace( touchLocation );
	
	m_test->MouseMove(b2Vec2(nodePosition.x,nodePosition.y));		
}

void Box2DView::ccTouchEnded(CCTouch* touch, UIEvent* event)
{
	CGPoint touchLocation = touch->locationInView( touch->view() );	
	touchLocation = CCDirector::getSharedDirector()->convertToGL( touchLocation );
	CGPoint nodePosition = convertToNodeSpace( touchLocation );
	
	m_test->MouseUp(b2Vec2(nodePosition.x,nodePosition.y));
}

// void Box2DView::accelerometer(UIAccelerometer* accelerometer, UIAcceleration* acceleration)
// {
// 	//// Only run for valid values
// 	//if (acceleration.y!=0 && acceleration.x!=0)
// 	//{
// 	//	if (test) test->SetGravity((float)-acceleration.y,(float)acceleration.x);
// 	//}
// } 


void Box2dTestBedScene::runThisTest()
{
    addChild(MenuLayer::menuWithEntryID(0));

    CCDirector::getSharedDirector()->replaceScene(this);
}