Terraria.TargetDummy.UpdateDummies C# (CSharp) Method

        public static void UpdateDummies()
        {
            Dictionary<int, Rectangle> dictionary = new Dictionary<int, Rectangle>();
            bool flag1 = false;
            Rectangle rectangle = new Rectangle(0, 0, 32, 48);
            rectangle.Inflate(1600, 1600);
            int num1 = rectangle.X;
            int num2 = rectangle.Y;
            for (int index1 = 0; index1 < 1000; ++index1)
            {
                if (TargetDummy.dummies[index1] != null)
                {
                    TargetDummy.dummies[index1].whoAmI = index1;
                    if (TargetDummy.dummies[index1].npc != -1)
                    {
                        if (!Main.npc[TargetDummy.dummies[index1].npc].active || Main.npc[TargetDummy.dummies[index1].npc].type != 488 || ((double)Main.npc[TargetDummy.dummies[index1].npc].ai[0] != (double)TargetDummy.dummies[index1].x || (double)Main.npc[TargetDummy.dummies[index1].npc].ai[1] != (double)TargetDummy.dummies[index1].y))
                            TargetDummy.dummies[index1].Deactivate();
                    }
                    else
                    {
                        if (!flag1)
                        {
                            for (int index2 = 0; index2 < (int)byte.MaxValue; ++index2)
                            {
                                if (Main.player[index2].active)
                                    dictionary[index2] = Main.player[index2].getRect();
                            }
                            flag1 = true;
                        }
                        rectangle.X = (int)TargetDummy.dummies[index1].x * 16 + num1;
                        rectangle.Y = (int)TargetDummy.dummies[index1].y * 16 + num2;
                        bool flag2 = false;
                        foreach (KeyValuePair<int, Rectangle> keyValuePair in dictionary)
                        {
                            if (keyValuePair.Value.Intersects(rectangle))
                            {
                                flag2 = true;
                                break;
                            }
                        }
                        if (flag2)
                            TargetDummy.dummies[index1].Activate();
                    }
                }
            }
        }