Method getLightLevel

src/main/java/net/optifine/DynamicLights.java:267–314

(BlockPos pos)

    }

    public static double getLightLevel(BlockPos pos)
    {
        double d0 = 0.0D;

        synchronized (mapDynamicLights)
        {
            List<DynamicLight> list = mapDynamicLights.valueList();
            int i = list.size();

            for (int j = 0; j < i; ++j)
            {
                DynamicLight dynamiclight = (DynamicLight)list.get(j);
                int k = dynamiclight.getLastLightLevel();

                if (k > 0)
                {
                    double d1 = dynamiclight.getLastPosX();
                    double d2 = dynamiclight.getLastPosY();
                    double d3 = dynamiclight.getLastPosZ();
                    double d4 = (double)pos.getX() - d1;
                    double d5 = (double)pos.getY() - d2;
                    double d6 = (double)pos.getZ() - d3;
                    double d7 = d4 * d4 + d5 * d5 + d6 * d6;

                    if (dynamiclight.isUnderwater() && !Config.isClearWater())
                    {
                        k = Config.limit(k - 2, 0, 15);
                        d7 *= 2.0D;
                    }

                    if (d7 <= 56.25D)
                    {
                        double d8 = Math.sqrt(d7);
                        double d9 = 1.0D - d8 / 7.5D;
                        double d10 = d9 * (double)k;

                        if (d10 > d0)
                        {
                            d0 = d10;
                        }
                    }
                }
            }
        }

        double d11 = Config.limit(d0, 0.0D, 15.0D);
        return d11;
    }

    public static int getLightLevel(ItemStack itemStack)
    {