Sign.cs

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namespace Terraria;
 
public class Sign
{
    public const int maxSigns = 1000;
 
    public int x;
 
    public int y;
 
    public string text;
 
    public static void KillSign(int x, int y)
    {
        for (int i = 0; i < 1000; i++)
        {
            if (Main.sign[i] != null && Main.sign[i].x == x && Main.sign[i].y == y)
            {
                Main.sign[i] = null;
            }
        }
    }
 
    public static int ReadSign(int i, int j, bool CreateIfMissing = true)
    {
        int num = Main.tile[i, j].frameX / 18;
        int num2 = Main.tile[i, j].frameY / 18;
        num %= 2;
        int num3 = i - num;
        int num4 = j - num2;
        if (!Main.tileSign[Main.tile[num3, num4].type])
        {
            KillSign(num3, num4);
            return -1;
        }
        int num5 = -1;
        for (int k = 0; k < 1000; k++)
        {
            if (Main.sign[k] != null && Main.sign[k].x == num3 && Main.sign[k].y == num4)
            {
                num5 = k;
                break;
            }
        }
        if (num5 < 0 && CreateIfMissing)
        {
            for (int l = 0; l < 1000; l++)
            {
                if (Main.sign[l] == null)
                {
                    num5 = l;
                    Main.sign[l] = new Sign();
                    Main.sign[l].x = num3;
                    Main.sign[l].y = num4;
                    Main.sign[l].text = "";
                    break;
                }
            }
        }
        return num5;
    }
 
    public static void TextSign(int i, string text)
    {
        if (Main.tile[Main.sign[i].x, Main.sign[i].y] == null || !Main.tile[Main.sign[i].x, Main.sign[i].y].active() || !Main.tileSign[Main.tile[Main.sign[i].x, Main.sign[i].y].type])
        {
            Main.sign[i] = null;
        }
        else
        {
            Main.sign[i].text = text;
        }
    }
 
    public override string ToString()
    {
        return "x" + x + "\ty" + y + "\t" + text;
    }
}