Question

我的船出现在图层上。触摸启动按钮时，船舶应移动到计算位置。检测到触摸，正确计算坐标，但船舶不会移动。我已经在这个关于runAction的论坛上阅读了500多个Q和A，没有任何帮助我。我还重新启动了Xcode并清理了目标。

以下是ShipManager的界面：

#import <Foundation/Foundation.h>
#import "Common.h"//imports cocos2d.h

@interface ShipManager : NSObject {
    GameLayer *layer;
    CCSprite *ship;
    ...
    NSArray *shipTargetArray;
    CCArray *shipArray;
    int podValue;
    int podKey;
    int topPod;
    int botPod;
    float x;
    float y;    
}

@property (nonatomic, retain) CCSprite *ship;
@property (nonatomic, retain) CCSprite *pod;
...

-(id)initWith:(GameLayer *)gameLayer;
-(void)updateShip;
-(void)resetShip;
-(void)touchedExtinguishButton;    
@end

实施文件的一部分：

#import "ShipManager.h"
#import "PodGroupManager.h"
#import "GameLayer.h"   

@implementation ShipManager

@synthesize ship;
...

int loadState;

//LAUNCH SHIP
-(void)launchShip {
    NSNumber *theTarget;
    CGPoint targetPosition;
    int shipTarget = absInt(topPod * botPod);

    theTarget = [NSNumber numberWithInt:shipTarget];
    NSInteger targetIndex = [shipTargetArray indexOfObject:theTarget];
    NSLog(@"target = %i; index = %i",shipTarget,targetIndex);//LOG:target = 20; index = 12

    self.ship = [shipArray objectAtIndex:0];//NEW CODE. 
    NSLog(@"ship tag = %i",ship.tag);//LOG:ship tag = 100
    NSLog(@"%@",shipArray);//LOG" <CCArray = 055209A0> = ( <CCSprite = 05520A40 | Rect = (2.00,2.00,148.00,200.00) | tag = 100 | atlasIndex = 10>, )

    x = ship.position.x;
    y = ship.position.y + 10 +34 * targetIndex;

    targetPosition = ccp(x,y);
    NSLog(@"target x = %f; y = %f",x, y);//LOG: target x = 384.000000; y = 754.000000

    //WHAT I WANT THE SHIP TO DO
    id action = [CCSequence actions:
              [CCMoveTo actionWithDuration:1.0f position:targetPosition],
              [CCDelayTime actionWithDuration:1.0f],
              [CCMoveTo actionWithDuration:.05f position:SHIP_START_POS],
              nil];
    [ship runAction:action];//SHIP DOES NOT MOVE*/
    //ALSO TRIED: [self.ship runAction:action]; NO MOVEMENT

    //ABOVE NOT WORKING -- TRYING SIMPLER MOVE
    //CCMoveTo* move = [CCMoveTo actionWithDuration:1.0f position:targetPosition];
    //[ship runAction:move]; //TRYING SIMPLER ACTION - STILL NO MOVEMENT


    //JUST TRYING TO GET THE SHIP THERE
    //ship.position = targetPosition; //NO MOVEMENT EITHER

    if (missionState == SHIP_EXT) {
        NSLog(@"extinguish fuse");//logs button press correctly
    }       
}
...
//RESET SHIP TO LAUNCHING PAD
-(void)resetShip {
    ship.position = SHIP_START_POS;
    [self setShipState:SHIP_EMPTY];
    [self setMissionState:SHIP_IDLE];
    ship.visible = YES;
}

//SETUP SHIP
-(void) setupShip {
    shipArray  = [[CCArray alloc]initWithCapacity:1];//just added - latest attempt
    ship = [CCSprite spriteWithSpriteFrameName:@"ship.png"];

    [layer.batchNode addChild:ship z:SHIP_Z tag:SHIP_TAG];
    [shipArray addObject:ship];//just added - latest attempt
    [self resetShip];       
}
...
//INITIALIZE SHIPMANAGER
-(id)initWith:(GameLayer *)gameLayer {
    if ((self = [super init]) ) {
        layer = gameLayer;
        [self setupShip];
        ...         
        [self setTopPod:0];
        [self setBotPod:0];

        //MAKE SHIPTARGET ARRAY
        shipTargetArray = [[NSArray alloc] initWithObjects:
                           [NSNumber numberWithInt:1],
                           ...
                           [NSNumber numberWithInt:25],
                           nil];
    }    
    return self;
}

-(void) dealloc {

    [shipTargetArray release];
    [shipArray release];
    self.ship = nil;

    [super dealloc];
}    
@end

我知道正在执行launchShip方法，因为所有NSLog都按预期打印并且结果正确。我在launchShip中尝试了3种不同的选项，我依次评论/取消注释，看看是否有任何工作 - 没有。我是Objective-c和cocos2d的新手，我怀疑问题是我试图告诉runAction运行操作的方法。我确信有一种方法可以正确地发送信息，并且对这种正确方式的任何帮助都会受到如此赞赏提前感谢您的帮助。

在发射船之前，将2个燃料箱装在船上。燃料箱具有数值。这些值确定了船舶目标目的地。所有这些都有效。加载燃料箱并计算正确的目的地。

Answer 1

ship = [shipArray objectAtIndex:0];

此作业不会保留。将其更改为

self.ship = [shipArray objectAtIndex:0];

稍后在dealloc方法中执行

self.ship = nil;

发布它。将其他变量（shipTargetArray shipArray）视为相同。

runAction没有移动我的船

1 个答案: