我正在制作一把格斗枪，如果图层是轻型的，它会将一个物体拉向玩家，如果图层是地面的，它会将玩家拉向物体
int groundLayer_mask = LayerMask.GetMask("Ground");
int lightWeightLayer_mask = LayerMask.GetMask("LightWeight");
//Shoots a raycast, and only works if layer is Ground
if (Physics.Raycast(Shoulder.transform.position, cam.transform.forward, out raycastHit, float.PositiveInfinity, groundLayer_mask))
{
//Hit Something
debugHitpointTransform.position = raycastHit.point;
hookshotPosition = raycastHit.point;
hookShotSize = 0f;
HookShotTransform.gameObject.SetActive(true);
HookShotTransform.localScale = Vector3.zero;
layerHit = 0;
state = State.HookShotThrown;
}
//Shoots a raycast, and only works if layer is LightWeight
else if (Physics.Raycast(Shoulder.transform.position, cam.transform.forward, out raycastHit, float.PositiveInfinity, lightWeightLayer_mask))
{
//Hit Something
debugHitpointTransform.position = raycastHit.point;
hookshotPosition = raycastHit.point;
hookShotSize = 0f;
HookShotTransform.gameObject.SetActive(true);
HookShotTransform.localScale = Vector3.zero;
layerHit = 1;
state = State.HookShotThrown;
}
但是如果我朝着一个有地面层的物体的方向看，即使有一个有轻型层的物体比有地面层的物体更近，它也会朝着有地面层的物体看，因为我首先有它的if语句。有没有办法让它不通过前面的对象，只是因为第一个在后面找，或者让它优先考虑前面的一个？
除了layerHit的值外，两个raycast案例基本上都做相同的事情。因此，无论哪种方式，这都是对资源的浪费；）
因此，为了提高效率并实现您想要的效果，只需在图层遮罩中包含两个图层，并对两个图层仅进行一次光线投射-
然后，您仍然可以检查在if块中实际击中了哪一层。
因此，我将在Inspector中公开可配置的字段
// Configure this via the Inspector
// it will be a drop-down from which you can select multiple entries
public LayerMask layers = LayerMask.GetMask("Ground", "LightWeight");
一般来说，我也会使用enum，以获得一些有意义的名称，例如。
public enum HitType
{
None = -1,
Ground,
Lightweight
}
然后使用单个光线投射，如
int groundLayer_mask = LayerMask.NameToLayer("Ground");
int lightWeightLayer_mask = LayerMask.NameToLayer("LightWeight");
var hitType = HitType.None;
if (Physics.Raycast(Shoulder.transform.position, cam.transform.forward, out raycastHit, float.PositiveInfinity, layers))
{
//Hit Something
debugHitpointTransform.position = raycastHit.point;
hookshotPosition = raycastHit.point;
hookShotSize = 0f;
HookShotTransform.gameObject.SetActive(true);
HookShotTransform.localScale = Vector3.zero;
if(raycastHit.collider.gameObject.layer == groundLayer_mask) hitType = HitType.Ground;
else if(raycastHit.collider.gameObject.layer == lightWeightLayer_mask) hitType = HitType.Lightweight;
state = State.HookShotThrown;
}
