我是cocos2d的新手，突然得到了这个EXC_BAD_ACCESS， 我做了一个新的获奖菜单，我得到了错误 我认为错误是因为我调用了一个已发布的对象，但我不发布任何内容？ 我的调试控制台没有错误，这很奇怪
这是我的Level_1.m
//
// Level_1.m
// iPadGame
//
// Created by My Name on 1/25/12.
// Copyright 2012 __MyCompanyName__. All rights reserved.
//
#import "Level_1.h"
#import "HelloWorldLayer.h"
CCSprite *player;
CCSprite *enemy;
CCSprite *enemy2;
CCSprite *enemy3;
CCSprite *star;
CCSprite *star2;
CCSprite *star3;
CCSprite *bg;
CCSprite *toolBar;
CCLabelTTF *youWin;
bool movePlayer;
@implementation Level_1
@synthesize score;
+(CCScene *) scene {
// 'scene' is an autorelease object.
CCScene *scene = [CCScene node];
// 'layer' is an autorelease object.
Level_1 *layer = [Level_1 node];
// add layer as a child to scene
[scene addChild: layer];
// return the scene
return scene;
}
-(void) setUpWinMenu {
[CCMenuItemFont setFontName:@"Marker Felt"];
[CCMenuItemFont setFontSize:75];
CCMenuItem *MainMenu = [CCMenuItemFont itemFromString:@"Main Menu" target:self selector:@selector(gotoMainMenu)];
CCMenu *WinMenu = [CCMenu menuWithItems:MainMenu, nil];
[self addChild:WinMenu];
MainMenu.position = ccp(400,500);
}
// on "init" you need to initialize your instance
-(id) init
{
// always call "super" init
// Apple recommends to re-assign "self" with the "super" return value
if( (self=[super init]))
{
self.isTouchEnabled = YES;
scoreNumber = 10;
bg = [CCSprite spriteWithFile:@"metal_background.jpeg"];
bg.position = ccp(512,384);
[self addChild:bg];
toolBar = [CCSprite spriteWithFile:@"ToolBar.png"];
toolBar.position = ccp(512,-30);
[self addChild:toolBar];
score = [CCLabelAtlas labelWithString:@"0123456789" charMapFile:@"ScoreFinal.png" itemWidth:50 itemHeight:75 startCharMap:'.'];
[self addChild:score];
score.position = ccp (-100,15);
CCLabelTTF *scoreLabel = [CCLabelTTF labelWithString:@"Score:" fontName:@"Marker Felt" fontSize:45];
scoreLabel.position = ccp(score.position.x + 275,score.position.y + 40);
scoreLabel.color = ccc3(0, 0, 0);
[self addChild:scoreLabel];
star = [CCSprite spriteWithFile:@"Star.png"];
star.position = ccp(400,600);
[self addChild:star];
star2 = [CCSprite spriteWithFile:@"Star.png"];
star2.position = ccp(600,600);
star3 = [CCSprite spriteWithFile:@"Star.png"];
star3.position = ccp(200,600);
player = [CCSprite spriteWithFile:@"ball.png"];
player.position = ccp(500,300);
[self addChild:player];
enemy = [CCSprite spriteWithFile:@"SpaceShip.png"];
enemy.position = ccp(150,600);
[self addChild:enemy];
enemy2 = [CCSprite spriteWithFile:@"SpaceShip.png"];
enemy2.position = ccp(250,600);
[self addChild:enemy2];
enemy3 = [CCSprite spriteWithFile:@"SpaceShip.png"];
enemy3.position = ccp(350,600);
[self addChild:enemy3];
[self schedule:@selector(enemyMove) interval:0.01];
[self schedule:@selector(collisionDetection) interval:0.01];
[self schedule:@selector(getStar) interval:0.01];
NSString *string = [NSString stringWithFormat:@"Score: %i", (int)scoreNumber];
[score setString:string];
x = 15;
x2 = 15;
x3 = 15;
y = 15;
Bx = 10;
By = 10;
movePlayer = FALSE;
CCRepeatForever *repeat = [CCRepeatForever actionWithAction: [CCRotateBy actionWithDuration:2 angle:360]];
[star runAction:repeat];
star.visible = 1;
}
return self;
}
-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch* myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView: [myTouch view]];
location = [[CCDirector sharedDirector]convertToGL:location];
CGRect playerRect = CGRectMake(player.position.x - (player.contentSize.width/2),
player.position.y - (player.contentSize.height/2),
player.contentSize.width,
player.contentSize.height);
CGRect Tlocation = CGRectMake(location.x, location.y, 10, 10);
NSLog(@"Touch Began");
if (CGRectIntersectsRect (Tlocation, playerRect)) {
player.position = location;
movePlayer = TRUE;
}
}
-(void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *myTouch = [touches anyObject];
CGPoint point = [myTouch locationInView:[myTouch view]];
point = [[CCDirector sharedDirector] convertToGL:point];
if (movePlayer == TRUE) {
player.position = point;
if (player.position.y < 110) {
player.position = ccp(player.position.x, 111);
}
}
}
-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"Touch ended");
movePlayer = FALSE;
}
-(void) enemyMove {
enemy.position = ccp(enemy.position.x + x, enemy.position.y);
enemy2.position = ccp(enemy2.position.x - x2, enemy2.position.y);
enemy3.position = ccp(enemy3.position.x + x3, enemy3.position.y);
if (enemy.position.x > 1024 || enemy.position.x < 0) {
x = -x;
}
if (enemy2.position.x > 1024 || enemy2.position.x < 0) {
x2 = -x2;
}
if (enemy3.position.x > 1024 || enemy3.position.x < 0) {
x3 = -x3;
}
if (enemy.position.y > 768 || enemy.position.y < 120) {
y = -y;
}
}
-(void) collisionDetection {
if (CGRectIntersectsRect(player.boundingBox, enemy.boundingBox)) {
[self schedule:@selector(collisionAlert)];
}
if (CGRectIntersectsRect(player.boundingBox, enemy2.boundingBox)) {
[self schedule:@selector(collisionAlert)];
}
if (CGRectIntersectsRect(player.boundingBox, enemy3.boundingBox)) {
[self schedule:@selector(collisionAlert)];
}
}
-(void) getStar {
if (CGRectIntersectsRect(player.boundingBox, star.boundingBox)) {
NSLog(@"Got Star!");
scoreNumber += 100;
NSString *string = [NSString stringWithFormat:@"Score: %i", (int)scoreNumber];
[score setString:string];
[self addChild:star2];
if (star.visible == 1) {
}
}
if (CGRectIntersectsRect(player.boundingBox, star2.boundingBox)) {
NSLog(@"Got Star!");
scoreNumber += 100;
NSString *string = [NSString stringWithFormat:@"Score: %i", (int)scoreNumber];
[score setString:string];
[self addChild:star3];
}
if (CGRectIntersectsRect(player.boundingBox, star3.boundingBox)) {
youWin = [CCLabelTTF labelWithString:@"You Win" fontName:@"Marker Felt" fontSize:75];
youWin.position = ccp(500,400);
[self addChild:youWin];
[self setUpWinMenu];
NSLog(@"Got Star!");
scoreNumber += 100;
NSString *string = [NSString stringWithFormat:@"Score: %i", (int)scoreNumber];
[score setString:string];
player.position = ccp(player.position.x - 10, player.position.y - 20);
[self unschedule:@selector(enemyMove)];
[self unschedule:@selector(collisionAlert)];
[self unschedule:@selector(getStar)];
}
return;
}
-(void) collisionAlert {
player.position = ccp(player.position.x - 10, player.position.y - 20);
[self unschedule:@selector(enemyMove)];
UIAlertView* dialog = [[UIAlertView alloc] init];
[dialog setDelegate:self];
[dialog setTitle:@"Fail"];
[dialog setMessage:@"You are a Failure!"];
[dialog addButtonWithTitle:@"Goto Main Menu"];
[dialog addButtonWithTitle:@"Retry!"];
[dialog addButtonWithTitle:@"Dont push this button"];
[dialog show];
[dialog release];
[self unschedule:@selector(collisionAlert)];
}
-(void) alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)buttonIndex {
if(buttonIndex == 0) {
[[CCDirector sharedDirector] replaceScene:[CCTransitionFlipAngular transitionWithDuration:1 scene:[HelloWorldLayer node]]];
}
if (buttonIndex == 1) {
[[CCDirector sharedDirector] replaceScene:[Level_1 node]];
}
if (buttonIndex == 2) {
[self schedule:@selector(noting)];
}
}
-(void) gotoMainMenu {
[[CCDirector sharedDirector] replaceScene:[CCTransitionJumpZoom transitionWithDuration:1 scene:[HelloWorldLayer node]]];
}
@end
我没有完全完成，但可能有一些空方法，但我确定不是什么导致问题
答案 0 :(得分：3)
所有这些对象：
CCSprite *player;
CCSprite *enemy;
CCSprite *enemy2;
CCSprite *enemy3;
CCSprite *star;
CCSprite *star2;
CCSprite *star3;
CCSprite *bg;
CCSprite *toolBar;
正在使用自动释放方法分配，例如CCSprite spriteWithFile:，然后，当您在其他方法中访问这些对象时，就像在ccTouchesBegan: withEvent:处一样，它们已经被释放，并且您获得了{{1} }}
您可以做的一件事就是调用EXC_BAD_ACCESS方法，然后调用保留调用，例如
spriteWithFile:但是不要忘记在Level_1课程toolBar = [[CCSprite spriteWithFile:@"ToolBar.png"] retain];
上发布保留的对象（我在课堂上没有看到这些对象）
dealloc答案 1 :(得分：0)
即使您在控制台上没有看到任何内容，如果您在调试器下运行应用程序，您应该能够在崩溃时检查调用堆栈。
如果您正在访问某些已经解除分配的对象，或者可能尝试发送消息，这将清楚地告诉您。