java - 如何获取玩家正在查看的方 block 的坐标？

Question

我想获得玩家正在查看的方块的坐标。我尝试这样做:

double x = player.getLookVec().getX();
double y = player.getLookVec().getY();
double z = player.getLookVec().getZ();

但不知何故，这些数字总是在 0、0、0 和 1、1、1 之间，所以我没有得到块的坐标。那么我怎样才能得到一个块的确切坐标呢？

更多代码:

@Mod.EventBusSubscriber (modid = FirstMod.MOD_ID, bus = Bus.FORGE)
public class RightClickBlock 
{           

    @SubscribeEvent 
    public static void on(FOVUpdateEvent event) 

    {
          if(player.getHeldItemMainhand().getItem() == Items.BEDROCK) 
        {   
             LivingEntity player = event.getEntity();
                 World worldIn = player.world;

                double x = player.getLookVec().getX();
                double y = player.getLookVec().getY();
                double z = player.getLookVec().getZ(); `

                worldIn.setBlockState(new BlockPos(x, y, z) , Blocks.BEDROCK.getDefaultState());   
         }
    }
}

Answer 1

我注意到(至少在 1.16 中)Minecraft.getInstance().objectMouseOver.getHitVec()如果玩家从南面、东面或上方看方块，则返回空气。如果数字太大，它会给出旁边的块。此方法使用玩家位置，如果双人结束于 .0 , 并决定什么时候位置需要 -1 .

Minecraft instance = Minecraft.getInstance();

if(instance.objectMouseOver.getType() != RayTraceResult.Type.BLOCK){return;}

Vector3d blockVector = instance.objectMouseOver.getHitVec();

double bX = blockVector.getX(); double bY = blockVector.getY(); double bZ = blockVector.getZ();
double pX = instance.player.getPosX(); double pY = instance.player.getPosY(); double pZ = instance.player.getPosZ();

if(bX == Math.floor(bX) && bX <= pX){bX--;}
if(bY == Math.floor(bY) && bY <= pY+1){bY--;} // +1 on Y to get y from player eyes instead of feet
if(bZ == Math.floor(bZ) && bZ <= pZ){bZ--;}

BlockState block = instance.world.getBlockState(new BlockPos(bX, bY, bZ));