SpriteKit PhysicsBody:无法创建物理实体

问题描述

我的游戏中有一个玩家，它有两个飞行，坠落状态.他们每个人都有一个图像:player_flying，player_falling相应.我还使用身体来检测碰撞.当我使用一种纹理时，它完全可以正常工作.但是，当我尝试在不同条件下使用不同纹理同时使用这两种方法时，它在日志中显示了错误.我正在这样尝试:

I have a player in my game, it has two states flying, falling. Each of them has an image: player_flying, player_falling correspondingly. I am also using a physical bodies to detect collision. It is completely normally functioning when I use one texture. But when I am trying to use both in different conditions using different textures, it shows me an error in the log. I am trying it like that:

if (self.player.physicsBody.velocity.dy > 30) {
    self.player.texture = [SKTexture textureWithImageNamed:@"player_flying"];
    self.player.physicsBody = [SKPhysicsBody bodyWithTexture:self.player.texture
                                                        size:self.player.size];
}
else
{
    self.player.texture = [SKTexture textureWithImageNamed:@"player_falling"];
    self.player.physicsBody = [SKPhysicsBody bodyWithTexture:self.player.texture
                                                        size:self.player.size];
}

错误是:

推荐答案

感谢0x141E，我发现我的纹理周围有一些白色的污点，删除后，一切都开始起作用.现在我想知道如何在代表我的物理对象的纹理周围隐藏笔划.

thanks 0x141E, i found out that my texture had some white shit around it, after I've deleted it, everything started to work. Now i am wondering how to hide stroke around my texture which represents my physical object.

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