gamelayer.h/gamelayer.m
//
// GameLayer.h
// EndlessPlatformer
//
// Created by Kay Rules on 8/1/11.
// Copyright 2011 Fleezo.com. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "cocos2d.h"
#import "MovingPlatform.h"
#import "ScoreLayer.h"
@interface GameLayer : CCLayer {
MovingPlatform *platform;
ScoreLayer *scoreLayer;
CCSpriteBatchNode *_batchNode;
CCSprite *_hero;
CCAction *_runAction;
CGSize winSize;
CGPoint heroRunningPosition;
CGPoint jumpVelocity;
BOOL isJumping;
BOOL isGap;
int _score;
int _nextEnemy;
}
@property (nonatomic, retain) CCSprite *hero;
@property (nonatomic, retain) CCAction *runAction;
@property CGPoint heroRunningPosition;
@property CGPoint jumpVelocity;
@propertyBOOL isJumping;
@propertyBOOL isGap;
@propertyint score;
+(CCScene *) scene;
@end
////////////////////////////
gamelayer.m
//
// GameLayer.m
// EndlessPlatformer
//
// Created by Kay Rules on 8/1/11.
// Copyright 2011 Fleezo.com. All rights reserved.
//
#import "GameLayer.h"
#import "GameOverScene.h"
#define kInitialSpeed 4
#define kTagStepDistance 0
#define kJumpHigh 19
#define kJumpShort 13
#define kGravityFactor -1
#define kPlatformHeadSize 40
#define kDifficultySpeed 0.8
#define kDifficultyScore 100
#define kInitialEnemies 10
@interface GameLayer (private)
- (void) initBackground;
- (void) initPlatform;
- (void) initEnemy;
- (void) gameOver;
- (void) createHero;
- (void) changeHeroImageDuringJump;
- (void) initScore;
- (void) updateScore;
- (void) increaseDifficulty;
@end
@implementation GameLayer
@synthesize hero = _hero;
@synthesize score = _score;
@synthesize runAction = _runAction;
@synthesize isJumping;
@synthesize isGap;
@synthesize jumpVelocity;
@synthesize heroRunningPosition;
+(CCScene *) scene
{
CCScene *scene = [CCScene node];
GameLayer *layer = [GameLayernode];
[scene addChild: layer];
return scene;
}
-(id) init
{
if( (self=[super init])) {
self.isTouchEnabled = YES;
isJumping = NO;
isGap = NO;
jumpVelocity = CGPointZero;
winSize = [CCDirector sharedDirector].winSize;
heroRunningPosition = ccp(winSize.width * 0.25, winSize.height * 0.5 - kPlatformHeadSize + 6);
[self initPlatform];
[self createHero];
[selfinitBackground];
[self initScore];
}
returnself;
}
- (void) initPlatform
{
CCArray *images = [[CCArray alloc] initWithCapacity:3];
[images addObject:@"platform-left.png"];
[images addObject:@"platform.png"];
[images addObject:@"platform-right.png"];
platform = [[MovingPlatformalloc] initWithSpeed:kInitialSpeedandPause:NOandImages:images];
[self addChild:platform z:0];
[selfscheduleUpdate];
}
- (void) initBackground
{
CCSprite *background = [CCSprite spriteWithFile:@"background.png"];
background.anchorPoint = CGPointZero;
background.position = CGPointZero;
[self addChild:background z:-1];
}
-(void) createHero
{
_batchNode = [CCSpriteBatchNodebatchNodeWithFile:@"Snipe.png"];
[selfaddChild:_batchNode];
[[CCSpriteFrameCachesharedSpriteFrameCache] addSpriteFramesWithFile:@"Snipe.plist"];
//gather list of frames
NSMutableArray *runAnimFrames = [NSMutableArrayarray];
for(int i = 1; i <= 8; ++i) {
[runAnimFrames addObject:
[[CCSpriteFrameCachesharedSpriteFrameCache] spriteFrameByName:
[NSString stringWithFormat:@"snipe-%d.png", i]]];
}
//create sprite and run the hero
self.hero = [CCSpritespriteWithSpriteFrameName:@"snipe-8.png"];
_hero.anchorPoint = CGPointZero;
_hero.position = self.heroRunningPosition;
//create the animation object
CCAnimation *runAnim = [CCAnimation animationWithFrames:runAnimFrames delay:0.1f];
self.runAction = [CCRepeatForeveractionWithAction: [CCAnimateactionWithAnimation:runAnim restoreOriginalFrame:YES]];
[_herorunAction:_runAction];
[_batchNodeaddChild:_heroz:0];
}
-(void) update:(ccTime)dt
{
CGPoint returnedCoordinate = [platform getYCoordinateAt:heroRunningPosition];
if (heroRunningPosition.y != returnedCoordinate.y) {
heroRunningPosition = ccp(heroRunningPosition.x, returnedCoordinate.y - kPlatformHeadSize);
}
//falling between gap
if (returnedCoordinate.x <= 0 && returnedCoordinate.y <= 0) {
isGap = YES;
heroRunningPosition = ccp(heroRunningPosition.x, -_hero.textureRect.size.height);
if (isJumping == NO) {
jumpVelocity = ccpAdd(jumpVelocity, ccp(0,kGravityFactor));
_hero.position = ccpAdd(_hero.position, jumpVelocity);
if (_hero.position.y < heroRunningPosition.y) {
[self gameOver];
}
}
} else {
isGap = NO;
}
if (_hero.position.y < heroRunningPosition.y) {
if (jumpVelocity.y >= 0) {
_hero.position = ccp(heroRunningPosition.x - _hero.textureRect.size.width*2,
heroRunningPosition.y);
}
jumpVelocity = ccpAdd(jumpVelocity, ccp(0,kGravityFactor));
_hero.position = ccpAdd(_hero.position, jumpVelocity);
[platform paused:YES];
[_herostopAllActions];
if (_hero.position.y < -winSize.height) {
[self gameOver];
}
}
}
-(void)jump:(ccTime)delta
{
if (isJumping == YES) {
if (jumpVelocity.y < 0 &&
_hero.position.y > heroRunningPosition.y &&
_hero.position.y < heroRunningPosition.y + _hero.textureRect.size.height) {
//hero landed
_hero.position = heroRunningPosition;
jumpVelocity = CGPointZero;
[self unschedule:@selector(jump:)];
isJumping = NO;
//NSLog(@"run action.");
if (_hero.position.y <= heroRunningPosition.y) [_herorunAction:_runAction];
} else {
//make the hero jump with gravity=-1
jumpVelocity = ccpAdd(jumpVelocity, ccp(0,kGravityFactor));
_hero.position = ccpAdd(_hero.position, jumpVelocity);
//change jumping image
[_hero stopAllActions];
[selfchangeHeroImageDuringJump];
}
}
}
- (void) updateScore:(ccTime)dt
{
_score += 1;
[scoreLayer.labelsetString:[NSStringstringWithFormat:@"%05dm", _score]];
//increase difficulty every 200m run
if (_score % kDifficultyScore == 0) {
[selfincreaseDifficulty];
}
}
-(void)changeHeroImageDuringJump
{
[_herosetTextureRect:[[CCSpriteFrameCachesharedSpriteFrameCache]
spriteFrameByName:@"snipe-jump.png"].rect];
}
- (void) increaseDifficulty
{
platform.platformSpeed += kDifficultySpeed;
}
//register touch action
-(void) registerWithTouchDispatcher
{
[[CCTouchDispatchersharedDispatcher] addTargetedDelegate:selfpriority:0swallowsTouches:YES];
}
- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
if (isJumping == NO && isGap == NO) {
//[_hero stopAllActions];
//[self changeHeroImageDuringJump];
isJumping = YES;
jumpVelocity = ccp(0, kJumpHigh);
[self schedule:@selector(jump:) interval:(1.0 / 60.0)];
//[self schedule:@selector(jump:)];
}
returnYES;
}
- (void)ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
if (jumpVelocity.y > kJumpShort) {
jumpVelocity = ccp(0, kJumpShort);
}
}
- (void)gameOver
{
//NSLog(@"GAME OVER");
_hero.visible = NO;
[platform paused:YES];
[_herostopAllActions];
[selfunscheduleAllSelectors];
GameOverScene *gameOverScene = [GameOverScene node];
[[CCDirectorsharedDirector] replaceScene:gameOverScene];
}
- (void) initScore
{
_score = 0;
scoreLayer = [ScoreLayernode];
[scoreLayer.labelsetString:[NSStringstringWithFormat:@"%05dm", _score]];
[selfaddChild:scoreLayer];
[self schedule:@selector(updateScore:) interval:(5.0 / 60.0)];
}
- (void) dealloc
{
self.hero = nil;
self.runAction = nil;
[self.hero release];
[self.runAction release];
[platform release];
[super dealloc];
}
@end