TETrainingDummy.cs

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using System.Collections.Generic;
using System.IO;
using Microsoft.Xna.Framework;
using Terraria.DataStructures;
 
namespace Terraria.GameContent.Tile_Entities;
 
public class TETrainingDummy : TileEntity
{
    private static Dictionary<int, Rectangle> playerBox = new Dictionary<int, Rectangle>();
 
    private static bool playerBoxFilled;
 
    private static byte _myEntityID;
 
    public int npc;
 
    public override void RegisterTileEntityID(int assignedID)
    {
        _myEntityID = (byte)assignedID;
        TileEntity._UpdateStart += ClearBoxes;
    }
 
    public override void NetPlaceEntityAttempt(int x, int y)
    {
        NetPlaceEntity(x, y);
    }
 
    public static void NetPlaceEntity(int x, int y)
    {
        Place(x, y);
    }
 
    public override TileEntity GenerateInstance()
    {
        return new TETrainingDummy();
    }
 
    public override bool IsTileValidForEntity(int x, int y)
    {
        return ValidTile(x, y);
    }
 
    public static void ClearBoxes()
    {
        playerBox.Clear();
        playerBoxFilled = false;
    }
 
    public override void Update()
    {
        Rectangle value = new Rectangle(0, 0, 32, 48);
        value.Inflate(1600, 1600);
        int x = value.X;
        int y = value.Y;
        if (npc != -1)
        {
            if (!Main.npc[npc].active || Main.npc[npc].type != 488 || Main.npc[npc].ai[0] != (float)Position.X || Main.npc[npc].ai[1] != (float)Position.Y)
            {
                Deactivate();
            }
            return;
        }
        FillPlayerHitboxes();
        value.X = Position.X * 16 + x;
        value.Y = Position.Y * 16 + y;
        bool flag = false;
        foreach (KeyValuePair<int, Rectangle> item in playerBox)
        {
            if (item.Value.Intersects(value))
            {
                flag = true;
                break;
            }
        }
        if (flag)
        {
            Activate();
        }
    }
 
    private static void FillPlayerHitboxes()
    {
        if (playerBoxFilled)
        {
            return;
        }
        for (int i = 0; i < 255; i++)
        {
            if (Main.player[i].active)
            {
                playerBox[i] = Main.player[i].getRect();
            }
        }
        playerBoxFilled = true;
    }
 
    public static bool ValidTile(int x, int y)
    {
        if (!Main.tile[x, y].active() || Main.tile[x, y].type != 378 || Main.tile[x, y].frameY != 0 || Main.tile[x, y].frameX % 36 != 0)
        {
            return false;
        }
        return true;
    }
 
    public TETrainingDummy()
    {
        npc = -1;
    }
 
    public static int Place(int x, int y)
    {
        TETrainingDummy tETrainingDummy = new TETrainingDummy();
        tETrainingDummy.Position = new Point16(x, y);
        tETrainingDummy.ID = TileEntity.AssignNewID();
        tETrainingDummy.type = _myEntityID;
        lock (TileEntity.EntityCreationLock)
        {
            TileEntity.ByID[tETrainingDummy.ID] = tETrainingDummy;
            TileEntity.ByPosition[tETrainingDummy.Position] = tETrainingDummy;
        }
        return tETrainingDummy.ID;
    }
 
    public static int Hook_AfterPlacement(int x, int y, int type = 378, int style = 0, int direction = 1, int alternate = 0)
    {
        if (Main.netMode == 1)
        {
            NetMessage.SendTileSquare(Main.myPlayer, x - 1, y - 2, 2, 3);
            NetMessage.SendData(87, -1, -1, null, x - 1, y - 2, (int)_myEntityID);
            return -1;
        }
        return Place(x - 1, y - 2);
    }
 
    public static void Kill(int x, int y)
    {
        if (TileEntity.ByPosition.TryGetValue(new Point16(x, y), out var value) && value.type == _myEntityID)
        {
            lock (TileEntity.EntityCreationLock)
            {
                TileEntity.ByID.Remove(value.ID);
                TileEntity.ByPosition.Remove(new Point16(x, y));
            }
        }
    }
 
    public static int Find(int x, int y)
    {
        if (TileEntity.ByPosition.TryGetValue(new Point16(x, y), out var value) && value.type == _myEntityID)
        {
            return value.ID;
        }
        return -1;
    }
 
    public override void WriteExtraData(BinaryWriter writer, bool networkSend)
    {
        writer.Write((short)npc);
    }
 
    public override void ReadExtraData(BinaryReader reader, bool networkSend)
    {
        npc = reader.ReadInt16();
    }
 
    public void Activate()
    {
        int num = NPC.NewNPC(new EntitySource_TileEntity(this), Position.X * 16 + 16, Position.Y * 16 + 48, 488, 100);
        Main.npc[num].ai[0] = Position.X;
        Main.npc[num].ai[1] = Position.Y;
        Main.npc[num].netUpdate = true;
        npc = num;
        if (Main.netMode != 1)
        {
            NetMessage.SendData(86, -1, -1, null, ID, Position.X, Position.Y);
        }
    }
 
    public void Deactivate()
    {
        if (npc != -1)
        {
            Main.npc[npc].active = false;
        }
        npc = -1;
        if (Main.netMode != 1)
        {
            NetMessage.SendData(86, -1, -1, null, ID, Position.X, Position.Y);
        }
    }
 
    public override string ToString()
    {
        return Position.X + "x  " + Position.Y + "y npc: " + npc;
    }
}