如果你想表达你玩球的时候很饿,就是 I was/felt hungry when playing basketball / when I was playing basketball.
如果是你玩完觉得很饿,就是 I was/felt hungry after playing basketball / after I had played basketball.
在英语的表达里永远把最想要强调的部分,这里是饿,放在句首,然后在剩下的句子里补充说明你是为什么饿,什么时候饿balabala。然后注意时态前后一致。还有叙述一般都是过去式。