xcode - 错误消息 : Enumeration value 'GameMoveNineEnum' not handled in switch?

Question

我发现问题很接近，但没有任何帮助，有人能看出我为什么会收到这个错误吗？代码的第 6 行“(移动)”存在问题。谢谢

// move the spirit left/right/up/down
-(BOOL)moveSpiritWidthOrientation:(GameSpirit*)spirit moveEnum:(GameMoveEnum)move setTransform:(BOOL)trans{
    CGPoint gridPoint = [self getGridPointWithPoint:spirit.endPoint];
    CGAffineTransform transform = CGAffineTransformIdentity;
    switch (move) {
        case GameMoveTopEnum:
            gridPoint.y -= 1;
            transform = CGAffineTransformMakeRotation(-M_PI/2);
            break;
        case GameMoveBottomEnum:
            gridPoint.y += 1;
            transform = CGAffineTransformMakeRotation(M_PI/2);
            break;
        case GameMoveLeftEnum:
            gridPoint.x -= 1;
            transform = CGAffineTransformMakeScale(-1, 1);
            break;
        case GameMoveRightEnum:
            gridPoint.x += 1;
            break;
    }

Answer 1

使用默认。甚至 default: break; 也行。