如何创建自定义SKActions？

Question

你好，我想做的就是创建一个SKAction，它对物理对象执行与wheelRight.physicsBody.velocity = CGVectorMake(0, 1000);类似的操作。

Answer 1

使用SKAction runBlock:方法：

SKAction *changeVelocity = [SKAction runBlock:^{
        wheelRight.physicsBody.velocity = CGVectorMake(0, 1000);
    }];
SKAction sequence = [SKAction sequence:@[..., changeVelocity, ..., ...]];
[wheelRight runAction:sequence];