//
//  GameLayer.m
//  Cart Collect
//
//  Created by iD Student Account on 7/18/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "GameLayer.h"


@implementation GameLayer

+ (CCScene*)scene
{
	CCScene* scene = [CCScene node];
	
	CCLayerColor* backgroundLayer = [CCLayerColor layerWithColor:ccc4(255, 255, 255, 255)];
	[scene addChild:backgroundLayer];
	
	GameLayer* layer = [GameLayer node];
	[scene addChild:layer];
	
	scene.tag = 436;
	
	return scene;
}

- (void)tick:(ccTime)dt
{
	// Move the cart based on acceleration gathered from accelerometer
	cartSprite.position = ccp(MIN(MAX(cartSprite.position.x+accelX, 16),464), cartSprite.position.y);
	
	int lastScore = score;
	
	for (FallingObject* object in objects)
	{
		// Move objects down
		object.sprite.position = ccp(object.sprite.position.x, object.sprite.position.y-object.weight);
	
        // Cart collision detection
        CGSize first = [cartSprite boundingBox].size;
        CGSize second = [object.sprite boundingBox].size;
        
        if (cartSprite.position.x > (object.sprite.position.x - second.width/2 - first.width/2))
        {
            if (cartSprite.position.x < (object.sprite.position.x + second.width/2 + first.width/2))
            {
                if (cartSprite.position.y > (object.sprite.position.y - second.height/2 - first.height/2))
                {
                    if (cartSprite.position.y < (object.sprite.position.y + second.height/2 + first.height/2))
                    {
                        [object retain];
                        [objects removeObject:object];
                        
                        // If a cart collides with an object, it's going to vanish no matter what
                        [object.sprite.parent removeChild:object.sprite cleanup:YES];
                        
                        NSString* audioFile = nil;
                        if ([object isKindOfClass:[OneUp class]])
                        {
                            audioFile = [[NSBundle mainBundle] pathForResource:@"1up" ofType:@"wav"];
                            lives++;
                        } else if ([object isKindOfClass:[Rock class]])
                        {
                            audioFile = [[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"];
                            lives--;
                        } else if ([object conformsToProtocol:@protocol(ValuableObject)]) {
                            audioFile = [[NSBundle mainBundle] pathForResource:@"Item1" ofType:@"wav"];
                            score += [((FallingObject<ValuableObject>*)object) pointValue];
                        }
                        
                        if (audioFile != nil)
                        {
                            [[SimpleAudioEngine sharedEngine] playEffect:audioFile];
                        }
                        
                        [self updateLabels];
                        
                        continue; // Don't check for collision with floor
                    }
                }
            }
        }
        
		// Collision detection with floor
        if (object.sprite.position.y - (object.sprite.contentSize.height/2) < 0)
		{
            [object retain];
            [objects removeObject:object];
            
			[object.sprite.parent removeChild:object.sprite cleanup:YES];
			
			if ([object conformsToProtocol:@protocol(ValuableObject)])
			{
				NSString* audioFile = [[NSBundle mainBundle] pathForResource:@"Damage1" ofType:@"wav"];
                [[SimpleAudioEngine sharedEngine] playEffect:audioFile];
				
				lives--;
				
				[self updateLabels];
			}
		}	
	}
	
	if (lives == 0)
	{
        [self unschedule:@selector(randomlyAddObject:)];
        [self unschedule:@selector(tick:)];
        [[CCDirector sharedDirector] replaceScene:[CCTransitionSlideInT transitionWithDuration:1.5f scene:[GameOverLayer sceneWithScore:score]]];
	} else if (score > lastScore)
	{
		if ((lastScore < 6500) && (score >= 6500))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:0.6f];
			addSpeed = 0.6f;
		} else if ((lastScore < 4500) && (score >= 4500))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:0.7f];
			addSpeed = 0.7f;
		} else if ((lastScore < 2500) && (score >= 2500))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:0.8f];
			addSpeed = 0.8f;
		} else if ((lastScore < 1500) && (score >= 1500))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:0.9f];
			addSpeed = 0.9f;
		} else if ((lastScore < 500) && (score >= 500))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:1.0f];
			addSpeed = 1.0f;
		} else if ((lastScore < 150) && (score >= 150))
		{
			[self unschedule:@selector(randomlyAddObject:)];
			[self schedule:@selector(randomlyAddObject:) interval:2.0f];
			addSpeed = 2.0f;
		}
	}
}

- (void)randomlyAddObject:(ccTime)dt
{
	FallingObject* object;
    int oneuppercent = 98 - (lives == 1 ? 1 : 0);

	if (score < 1000)
	{
		int randomval = arc4random()%100;
		
		if (randomval < 65)
		{
			object = [[Cherry alloc] init];
		} else if (randomval < oneuppercent)
		{
			object = [[Bottle alloc] init];
		} else {
			object = [[OneUp alloc] init];
		}
	} else {
		int randomval = arc4random()%100;
		
		if (randomval < 40)
		{
			object = [[Cherry alloc] init];
		} else if (randomval < 70)
		{
			object = [[Rock alloc] init];
		} else if (randomval < oneuppercent)
		{
			object = [[Bottle alloc] init];
		} else {
			object = [[OneUp alloc] init];
		}
	}
	
	int objectX = arc4random()%448+16;
	object.sprite.position = ccp(objectX, 360);
	object.sprite.scale = 1;
	[self addChild:object.sprite];
	
	[objects addObject:object];
    [object release];
	
	if (score >= 2000)
	{
		if (arc4random() % 100 > 80)
		{
			object = [[Rock alloc] init];
			
			objectX = arc4random()%448+16;
			object.sprite.position = ccp(objectX, 360);
			object.sprite.scale = 1;
			[self addChild:object.sprite];
			
			[objects addObject:object];
            [object release];
		}
	}
	
	if (score >= 4000)
	{
		if (arc4random() % 100 > 80)
		{
			object = [[Rock alloc] init];
			
			objectX = arc4random()%448+16;
			object.sprite.position = ccp(objectX, 360);
			object.sprite.scale = 1;
			[self addChild:object.sprite];
			
			[objects addObject:object];
            [object release];
		}
	}
}

- (id)init
{
	self = [super init];
	
	int winWidth = [CCDirector sharedDirector].winSize.width;
	//int winHeight = [CCDirector sharedDirector].winSize.height;
	int cartScale = 2;
	
	if (self != nil)
	{
		CCSprite* backgroundImage = [CCSprite spriteWithFile:@"SeaBeach.png"];
		backgroundImage.position = ccp(240, 160);
		[self addChild:backgroundImage z:0];
		
		isAccelerometerEnabled_ = YES;
		
		//cart = [[Cart alloc] init];
        cartSprite = [CCSprite spriteWithFile:@"cart.png"];
		cartSprite.position = ccp(winWidth/2, 22);
		cartSprite.scale = cartScale;
		[self addChild:cartSprite];
		
		objects = [[NSMutableSet alloc] init];
		
		score = 0;
		lives = 3;
		
		scoreLabel = [CCLabelBMFont labelWithString:@"Score: 0" fntFile:@"helvetica2.fnt"];
		scoreLabel.position = ccp(50, 300);
		[self addChild:scoreLabel];
		
		livesLabel = [CCLabelBMFont labelWithString:@"Lives: 3" fntFile:@"helvetica2.fnt"];
		livesLabel.position = ccp(50, 280);
		[self addChild:livesLabel];
		
		CCMenuItemImage* pauseButton = [CCMenuItemImage itemFromNormalImage:@"pause2.png" selectedImage:@"pause.png" target:self selector:@selector(pause)];
		CCMenu* pauseMenu = [CCMenu menuWithItems:pauseButton, nil];
		[pauseMenu setPosition:ccp(480-8-16, 320-8-16)];
		[self addChild:pauseMenu];
		
		addSpeed = 2.5f;
	}
	
	return self;
}

-(void) onEnter
{
	[super onEnter];
	
	[[UIAccelerometer sharedAccelerometer] setUpdateInterval:(1.0 / 60)];
	[self schedule:@selector(tick:) interval:1.0f/60.0f];
	[self schedule:@selector(randomlyAddObject:) interval:addSpeed];
}

- (void)accelerometer:(UIAccelerometer*)accelerometer didAccelerate:(UIAcceleration*)acceleration
{	
	static float prevY=0;
	
#define kFilterFactor 0.05f
	
	float accelY = -((float) acceleration.y * kFilterFactor + (1- kFilterFactor)*prevY);
	
	prevY = accelY;
	accelX = accelY * 750;
}

- (void)updateLabels
{
	[scoreLabel setString:[NSString stringWithFormat:@"Score: %d", score]];
	[livesLabel setString:[NSString stringWithFormat:@"Lives: %d", lives]];
}

- (void)pause
{
	[[CCDirector sharedDirector] replaceScene:[PauseLayer sceneWithScene:[[CCDirector sharedDirector] runningScene]]];
}

@end