C - 传递结构指针会终止程序？如何

Question

我的问题是当我执行它时initialisePlayer()总是使程序崩溃

Answer 1

您应该将玩家作为玩家的地址传递给初始化函数:

    initialisePlayer(&player, &pos, direction);

并在初始化时为其分配内存:

void initialisePlayer(Player **player, Position * position, Direction direction);
{
    Player *p= malloc(sizeof(Player));
    p->position.x = position->x;
    p->position.y = position->y;
    p->direction = direction;
    p->moves = 0;
    *player= p;
}