JohnnyWorks

[self addChild:[Button buttonWithText:@"back" atPosition:ccp(80, 50) target:self selector:@selector(back:)]];
[self addChild:[Button buttonWithImage:@"openFeint.png" atPosition:ccp(400, 50) target:self selector:@selector(openOpenFeint:)]];

//
//  Button.h
//  StickWars - Siege
//
//  Created by EricH on 8/3/09.
//
 
@interface Button : Menu {
}
+ (id)buttonWithText:(NSString*)text atPosition:(CGPoint)position target:(id)target selector:(SEL)selector;
+ (id)buttonWithImage:(NSString*)file atPosition:(CGPoint)position target:(id)target selector:(SEL)selector;
@end
 
@interface ButtonItem : MenuItem {
	Sprite *back;
	Sprite *backPressed;
}
+ (id)buttonWithText:(NSString*)text target:(id)target selector:(SEL)selector;
+ (id)buttonWithImage:(NSString*)file target:(id)target selector:(SEL)selector;
- (id)initWithText:(NSString*)text target:(id)target selector:(SEL)selector;
- (id)initWithImage:(NSString*)file target:(id)target selector:(SEL)selector;
@end

//
//  Button.m
//  StickWars - Siege
//
//  Created by EricH on 8/3/09.
//
 
#import "Button.h"
 
 
@implementation Button
+ (id)buttonWithText:(NSString*)text atPosition:(CGPoint)position target:(id)target selector:(SEL)selector {
	Menu *menu = [Menu menuWithItems:[ButtonItem buttonWithText:text target:target selector:selector], nil];
	menu.position = position;
	return menu;
}
 
+ (id)buttonWithImage:(NSString*)file atPosition:(CGPoint)position target:(id)target selector:(SEL)selector {
	Menu *menu = [Menu menuWithItems:[ButtonItem buttonWithImage:file target:target selector:selector], nil];
	menu.position = position;
	return menu;
}
@end
 
@implementation ButtonItem
+ (id)buttonWithText:(NSString*)text target:(id)target selector:(SEL)selector {
	return [[[self alloc] initWithText:text target:target selector:selector] autorelease];
}
 
+ (id)buttonWithImage:(NSString*)file target:(id)target selector:(SEL)selector {
	return [[[self alloc] initWithImage:file target:target selector:selector] autorelease];
}
 
- (id)initWithText:(NSString*)text target:(id)target selector:(SEL)selector {
	if(self = [super initWithTarget:target selector:selector]) {
		back = [[Sprite spriteWithFile:@"button.png"] retain];
		back.anchorPoint = ccp(0,0);
		backPressed = [[Sprite spriteWithFile:@"button_p.png"] retain];
		backPressed.anchorPoint = ccp(0,0);
		[self addChild:back];
 
		self.contentSize = back.contentSize;
 
		Label* textLabel = [Label labelWithString:text fontName:@"take_out_the_garbage" fontSize:22];
		textLabel.position = ccp(self.contentSize.width / 2, self.contentSize.height / 2);
		textLabel.anchorPoint = ccp(0.5, 0.3);
		[self addChild:textLabel z:1];
	}
	return self;
}
 
- (id)initWithImage:(NSString*)file target:(id)target selector:(SEL)selector {
	if(self = [super initWithTarget:target selector:selector]) {
 
		back = [[Sprite spriteWithFile:@"button.png"] retain];
		back.anchorPoint = ccp(0,0);
		backPressed = [[Sprite spriteWithFile:@"button_p.png"] retain];
		backPressed.anchorPoint = ccp(0,0);
		[self addChild:back];
 
		self.contentSize = back.contentSize;
 
		Sprite* image = [Sprite spriteWithFile:file];
		[self addChild:image z:1];
		image.position = ccp(self.contentSize.width / 2, self.contentSize.height / 2);
	}
	return self;
}
 
-(void) selected {
	[self removeChild:back cleanup:NO];
	[self addChild:backPressed];
	[super selected];
}
 
-(void) unselected {
	[self removeChild:backPressed cleanup:NO];
	[self addChild:back];
	[super unselected];
}
 
// this prevents double taps
- (void)activate {
	[super activate];
	[self setIsEnabled:NO];
	[self schedule:@selector(resetButton:) interval:0.5];
}
 
- (void)resetButton:(ccTime)dt {
	[self unschedule:@selector(resetButton:)];
	[self setIsEnabled:YES];
}
 
- (void)dealloc {
	[back release];
	[backPressed release];
	[super dealloc];
}
 
@end

	gameLayer = [GameLayer node];
	[gameScene addChild:gameLayer z:zOrder_GameLayer];
 
	hudLayer = [HUDLayer node];
	[gameScene addChild:hudLayer z:zOrder_HudLayer];
 
	tileMap = [BGTileMap node];
	[gameLayer addChild:tileMap z:-1];
 
	[gameScene addChild:[PauseGameButton node] z:zOrder_GameButtons];
	[gameLayer addChild:[FireGunAtTouchPoint node]];

- (void)setViewpointCenter:(CGPoint)point {
	CGPoint centerPoint = ccp(240, 160);
	viewPoint = ccpSub(centerPoint, point);
 
	// dont scroll so far so we see anywhere outside the visible map which would show up as black bars
	if(point.x < centerPoint.x)
		viewPoint.x = 0;
	if(point.y < centerPoint.y)
		viewPoint.y = 0;
 
	// while zoomed out, don't adjust the viewpoint
	if(!isZoomedOut)
		gameLayer.position = viewPoint;
}

- (void)setPosition:(CGPoint)point {
	[[StandardGameController sharedSingleton] setViewpointCenter:point]; 
	[super setPosition:point];
}

- (CGPoint)coordinatesAtPosition:(CGPoint)point {
	return ccp((int)(point.x / self.tileSize.width), (int)(self.mapSize.height - (point.y / self.tileSize.height)));
}
 
- (unsigned int)getGIDAtPosition:(CGPoint)point {
	return [layer tileGIDAt:[self coordinatesAtPosition:point]];
}

	BGTileMap* tileMap = [StandardGameController sharedSingleton].tileMap;
	CGPoint coordinate = [tileMap coordinatesAtPosition:self.position];
	BBLog(@"Right now on tile %d",[tileMap.layer tileGIDAt:coordinate]);

#define ZOOM_BACK_IN_INTERVALS 10
#define ZOOM_OUT_RATE 0.3
// TODO need to refine this so for each step it uses the new viewpoint
- (void)setZoom:(BOOL)zoomedIn {
	BBLog(@"Zooming in %d", zoomedIn);
 
	// this scales it out so the whole height of the tilemap is in the screen
	float zoomScaleFactor = 320 / (tileMap.mapSize.height * tileMap.tileSize.height);
	if(zoomedIn) {
		[gameLayer runAction:[ScaleTo actionWithDuration:ZOOM_OUT_RATE scale:1.0]];
		[gameLayer runAction:[MoveTo actionWithDuration:ZOOM_OUT_RATE position:viewPoint]];
		[self schedule:@selector(setZoomedBackIn:) interval:ZOOM_OUT_RATE]; // need this for the transistion 
	} else {
		[gameLayer runAction:[ScaleTo actionWithDuration:ZOOM_OUT_RATE scale:zoomScaleFactor]];
		[gameLayer runAction:[MoveTo actionWithDuration:ZOOM_OUT_RATE position:ccp(0,0)]];
		isZoomedOut = YES;
	}
}
 
// need this small correction at the end to account of the player is moving and the viewpoint has changed to avoid jitter
#define ZOOM_OUT_CORRECTION_RATE 0.3
- (void)setZoomedBackIn:(ccTime)dt {
	[self unschedule:@selector(setZoomedBackIn:)];
	[gameLayer runAction:[MoveTo actionWithDuration:ZOOM_OUT_CORRECTION_RATE position:viewPoint]];
	[self schedule:@selector(setZoomedBackInFinished:) interval:ZOOM_OUT_CORRECTION_RATE]; // need this for the transistion 
}
 
- (void)setZoomedBackInFinished:(ccTime)dt {
	[self unschedule:@selector(setZoomedBackInFinished:)];
	isZoomedOut = NO;
}

//
//  Box2DEngine.h
//
//  Created by EricH on 7/22/09.
//  Copyright 2009 __MyCompanyName__. All rights reserved.
//
 
#import "Box2D.h"
 
// made this an extern constant to avoid obj c lookup overhead
extern b2World *bb_world;
 
@interface Box2DEngine : CocosNode {
}
 
+ (Box2DEngine *)sharedSingleton;
- (void)createWorld:(CGSize)size;
- (void)deleteWorld;
- (void)runSimulation;
@end

//
//  Box2DEngine.mm
//
//  Created by EricH on 7/22/09.
//  Copyright 2009 __MyCompanyName__. All rights reserved.
//
 
#import "HookActor.h"
 
 
#import "Box2DEngine.h"
#import "SuperBox2DActor.h"
 
b2World* bb_world;
 
const float32 timeStep = 1.0f / 60.0f;
const int32 velocityIterations = 10;
const int32 positionIterations = 10;
 
#define MAX_NUM_COLLISIONS 2048 // TODO make sure this buffer is the right size
b2ContactResult contactResultCache[MAX_NUM_COLLISIONS];
int32 contactResultCount = 0;
 
class MyContactListener : public b2ContactListener {
public:
	void Add(const b2ContactPoint* point) {
	}
 
	void Persist(const b2ContactPoint* point) {
	}
 
	void Remove(const b2ContactPoint* point) {
	}
 
	void Result(const b2ContactResult* point) {
		// TODO we are making a deep copy of every contact point here
		// check the box2d contact masks to make sure we minimize unwanted contact results
		contactResultCache[contactResultCount++] = *point; 
	}
};
 
void handleCachedContactResults() {
	b2ContactResult contactResult;
	for(int i = 0; i < contactResultCount; i++) {
#ifdef BBDEBUG
		if(contactResultCount >= MAX_NUM_COLLISIONS) {
			NSLog(@"RAN OUT OF BUFFER");
			assert(NO);
		}
#endif
		contactResult = contactResultCache[i];
		SuperBox2DActor* actorOne = (SuperBox2DActor*)contactResult.shape1->GetBody()->GetUserData();
		SuperBox2DActor* actorTwo = (SuperBox2DActor*)contactResult.shape2->GetBody()->GetUserData();
		if(!actorOne.isDead && !actorTwo.isDead) {
			[actorOne collisionResultOne:&contactResult withActor:actorTwo];
			[actorTwo collisionResultTwo:&contactResult withActor:actorOne];
		}
	}
 
	// clear the collision cache
	contactResultCount = 0;
}
 
void removeDeadActors() {
	b2Body* node = bb_world->GetBodyList();
	while (node)	{
		b2Body* b = node;
		node = node->GetNext();
 
		SuperBox2DActor* actor = (SuperBox2DActor*)b->GetUserData();
		if (actor.isDead) {
 
			// remove from physics  engine
			bb_world->DestroyBody(b);
 
			// remove from game engine (cocos2d)
			[[StandardGameController sharedSingleton] removeGameActor:actor];
		}
	}
}
 
 
@implementation Box2DEngine
+ (Box2DEngine*)sharedSingleton {
	static Box2DEngine* sharedSingleton;
	if (!sharedSingleton)
		sharedSingleton = [[Box2DEngine alloc] init];
 
	return sharedSingleton;
}
 
- (void)createWorld:(CGSize)size {
	b2AABB worldAABB;
	worldAABB.lowerBound.Set(0, 0);
	worldAABB.upperBound.Set(size.width * BOX2D_SCALE_FACTOR_INVERSE, size.height * BOX2D_SCALE_FACTOR_INVERSE); // TODO this shouldnt be inverse?
 
	b2Vec2 gravity(0.0f, -30.0f);
	bool doSleep = true;
 
	bb_world = new b2World(worldAABB, gravity, doSleep);
	bb_world->SetContactListener(new MyContactListener());
}
 
- (void)deleteWorld {
	[self unschedule:@selector(step:)];
	delete bb_world;
	bb_world = NULL;
}
 
- (void)runSimulation {
	[self schedule:@selector(step:)];
}
 
- (void)step:(ccTime)dt {
 
	// step the world
	bb_world->Step(dt, velocityIterations, positionIterations); // TODO do i use timestep or dt here?
 
	//BBLog(@"Num of contact results is %d",contactResultCount);
	// do stuff with collisions
	handleCachedContactResults();
 
	// remove all actors that are marked as dead
	removeDeadActors();
 
	// update cocosnode positions
	for (b2Body* b = bb_world->GetBodyList(); b; b = b->GetNext()) {
		if (b->GetUserData() != NULL) {
			SuperBox2DActor *actor = (SuperBox2DActor*)b->GetUserData();
			b2Vec2 position = b->GetPosition();
			actor.position = b2toCGPoint(position);
			actor.rotation = -1 * CC_RADIANS_TO_DEGREES(b->GetAngle());
			//NSLog(@"obj %@ %4.2f %4.2f\n",actor, position.x, position.y);
		}
	}
 
}
 
@end

Label *messageLabel = [Label labelWithString:message dimensions:CGSizeMake(380, 120) alignment:UITextAlignmentCenter fontName:@"your_custom_font" fontSize:26];

[[FontManager sharedManager] loadFont:@"your_custom_font"];

 (void) setTipString:(NSString*)str {
 
	NSInteger lineChars = 0;
	BOOL isSpace = NO;
	NSInteger index = 0;
	NSInteger numLines = 0;
 
	NSMutableString *line = [NSMutableString stringWithCapacity:LINE_LENGTH];
 
	while (index <= [str length]) {
		if(index == [str length]) {
			BitmapFontAtlas *tip = [[BitmapFontAtlas bitmapFontAtlasWithString:[NSString stringWithString:line] 
																																 fntFile:@"text.fnt"
																															 alignment:UITextAlignmentLeft] 
															retain];
			[tip setPosition: cpv(30,210 - 20 * numLines)];
			[self addChild:tip];	
			return;
		}
 
 
		NSString *tmp = [str substringWithRange:NSMakeRange(index, 1)];
		[line appendString:tmp];
 
		if([tmp isEqual:@" "])
			isSpace = YES;
		else
			isSpace = NO;
 
		if(lineChars >= LINE_LENGTH && isSpace) {
			BitmapFontAtlas *tip = [[BitmapFontAtlas bitmapFontAtlasWithString:[NSString stringWithString:line] 
																																 fntFile:@"text.fnt"
																															 alignment:UITextAlignmentLeft] 
															retain];
			[tip setPosition: cpv(30,210 - 20 * numLines)];
			[self addChild:tip];	
			lineChars = -1;
			[line setString:@""];
			numLines++;
		}
		lineChars++;
		index++;
	}
}