Question

我想对我的游戏标题执行一个简单的操作（放大/缩小序列，永远重复），但由于某种原因，当我调用方法“ZoomSequence”时它不起作用。我的代码有什么问题？

#import <SpriteKit/SpriteKit.h>
#import <AVFoundation/AVFoundation.h>

@interface MyScene : SKScene

@property (strong, nonatomic) SKLabelNode *mainTitle;

@end

#import "MyScene.h"

@implementation MyScene

@synthesize mainTitle;

-(id)initWithSize:(CGSize)size {
    if (self = [super initWithSize:size]) {
        SKSpriteNode *background = [[SKSpriteNode alloc] initWithImageNamed:@"bg.png"];
        background.anchorPoint = CGPointMake(0, 0);
        background.zPosition = 1;
        [self addChild: background];

        SKLabelNode *title = [SKLabelNode labelNodeWithFontNamed:@"Verdana-BoldItalic"];
        title.fontSize = 45;
        title.text = @"Game Title";
        title.position = CGPointMake(260, 250);
        title.zPosition = 3;
        self.mainTitle = title;
        [self addChild:title];

        [self ZoomSequence];

    }
    return self;
}

-(void)ZoomSequence{
    SKAction *HUDzoom = [SKAction scaleTo:2.0 duration:2];
    SKAction *HUDzoomOut = [SKAction scaleTo:1.0 duration:2];
    SKAction *HUDAnimation = [SKAction sequence:@[HUDzoom, HUDzoomOut]];

    [self.mainTitle runAction:[SKAction repeatActionForever:HUDAnimation]];
}

Answer 1

修正了它。它需要在屏幕上触摸一下才能开始动作，但我没有注意到，因为我的Level1-Scene总是在第一次触摸时打开并且MyScene被解雇了：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    SKScene *firstLevel = [[Level_1 alloc] initWithSize:self.size];
    [self.view presentScene: firstLevel];
}

所以我修改了我的方法：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    if (firstTouch == YES){
        firstTouch = NO;
    }else if (firstTouch == NO){
    SKScene *restart = [[Level_1 alloc] initWithSize:self.size];
    [self.view presentScene:restart];}
}

MyScene不会执行Action

1 个答案: