//播放器.m
#import "Player.h"
@implementation Player
+(id)player{
Player *player = [Player spriteNodeWithColor:[UIColor brownColor] size:CGSizeMake(32, 32)];
player.name = @"player";
player.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:player.size];
return player;
}
- (void)walkRight {
SKAction *incRight = [SKAction moveByX:10 y:0 duration:0];
[self runAction:incRight];
}
@end
//MyScene.h
#import "MyScene.h"
#import "Player.h"
@implementation MyScene
-(id)initWithSize:(CGSize)size {
if (self = [super initWithSize:size]) {
/* Setup your scene here */
self.anchorPoint = CGPointMake(0.5, 0.5);
self.backgroundColor = [SKColor colorWithRed:0.15 green:0.15 blue:0.3 alpha:1.0];
SKSpriteNode *ground = [SKSpriteNode spriteNodeWithColor:[UIColor greenColor] size:CGSizeMake(self.frame.size.width, 30)];
ground.position = CGPointMake(0, -self.frame.size.height/2 + ground.frame.size.height/2);
ground.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:ground.size];
ground.physicsBody.dynamic = NO;
[self addChild:ground];
Player *player = [Player player];
[self addChild:player];
}
return self;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
Player *player = (Player *)[self childNodeWithName:@"player"];
[player walkRight];
}
-(void)update:(CFTimeInterval)currentTime {
/* Called before each frame is rendered */
}
@end
我是 objective-c 的新手。好吧，我尝试构建上面的代码并得到错误“'Player'的不可见@interface声明选择器'walkRight'” 我真的不知道为什么。如果有人能帮助我，我将不胜感激。谢谢。
最佳答案
确保您已在 Player.h 文件中声明了 walkRight 方法。这应该在该文件中的接口(interface)声明之后的某个地方:
-(void)walkRight;
这允许导入 Player.h 的其他文件知道 Player.m 实现了 walkRight 方法。
关于ios - 'Player' 没有可见的@interface 声明选择器 'walkRight'，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24377901/