using System;
using System.Collections.Generic;
using System.Linq;

// ═══════════════════════════════════════════════════════════════════════════════
// ROLLER SURF BOT
// ═══════════════════════════════════════════════════════════════════════════════

const int PILLOW_ID = 893412986;
const int GATE_ID = 2147418143;
const int MARBLE_TILE_ID = 2147418142;
const int TICK_DELAY = 50;
const int MOVE_COOLDOWN = 150;

HashSet<int> greenRollers = new HashSet<int> { 
    2147418115, 2147418119, 2147418133, 
    2147418134, 2147418135, 2147418136 
};

bool gameStarted = false;
DateTime lastMoveCmd = DateTime.MinValue;

int GetId(dynamic item) { try { return (int)item.Id; } catch { return 0; } }

(int x, int y) GetPillowPos()
{
    foreach (var item in FloorItems)
    {
        if (item == null) continue;
        if (GetId(item) == PILLOW_ID)
            return (item.Location.X, item.Location.Y);
    }
    return (-1, -1);
}

(int x, int y) GetMarbleTilePos()
{
    foreach (var item in FloorItems)
    {
        if (item == null) continue;
        if (GetId(item) == MARBLE_TILE_ID)
            return (item.Location.X, item.Location.Y);
    }
    return (-1, -1);
}

(int x, int y) GetMyPos()
{
    try { return (Self.Location.X, Self.Location.Y); }
    catch { return (-1, -1); }
}

bool IsAdjacent(int x1, int y1, int x2, int y2)
{
    int dx = Math.Abs(x1 - x2);
    int dy = Math.Abs(y1 - y2);
    return (dx == 1 && dy == 0) || (dx == 0 && dy == 1);
}

int GetTargetIdAt(int x, int y)
{
    foreach (var item in FloorItems)
    {
        if (item == null) continue;
        if (item.Location.X != x || item.Location.Y != y) continue;
        
        int id = GetId(item);
        if (id == GATE_ID || greenRollers.Contains(id))
        {
            return id;
        }
    }
    return -1;
}

(int x, int y, int id) FindAdjacentTarget(int px, int py)
{
    int[] dX = { 1, -1, 0, 0 };
    int[] dY = { 0, 0, 1, -1 };
    
    for (int i = 0; i < 4; i++)
    {
        int checkX = px + dX[i];
        int checkY = py + dY[i];
        
        int targetId = GetTargetIdAt(checkX, checkY);
        if (targetId != -1)
        {
            return (checkX, checkY, targetId);
        }
    }
    return (-1, -1, -1);
}

Log("═══════════════════════════════════════");
Log("  ROLLER SURF BOT");
Log("═══════════════════════════════════════");

while (Run)
{
    Delay(TICK_DELAY);
    
    var pillow = GetPillowPos();
    var myPos = GetMyPos();
    var marbleTile = GetMarbleTilePos();
    
    if (pillow.x == -1 || myPos.x == -1) continue;
    
    bool onPillow = (myPos.x == pillow.x && myPos.y == pillow.y);
    bool onMarbleTile = (marbleTile.x != -1 && myPos.x == marbleTile.x && myPos.y == marbleTile.y);
    
    if (!gameStarted)
    {
        if (onMarbleTile)
        {
            Log("Start!");
            Send(Out["MoveAvatar"], pillow.x, pillow.y);
            gameStarted = true;
            lastMoveCmd = DateTime.Now;
            continue;
        }
        
        if (onPillow)
        {
            gameStarted = true;
            Log("GO!");
            continue;
        }
        
        if (IsAdjacent(myPos.x, myPos.y, pillow.x, pillow.y))
        {
            Send(Out["MoveAvatar"], pillow.x, pillow.y);
            gameStarted = true;
            lastMoveCmd = DateTime.Now;
            continue;
        }
        continue;
    }
    
    if (!onPillow)
    {
        if ((DateTime.Now - lastMoveCmd).TotalMilliseconds > MOVE_COOLDOWN)
        {
            Send(Out["MoveAvatar"], pillow.x, pillow.y);
            lastMoveCmd = DateTime.Now;
        }
        continue;
    }
    
    var target = FindAdjacentTarget(pillow.x, pillow.y);
    
    if (target.id == -1) continue;
    
    if (target.id == GATE_ID)
    {
        Log("GATE!");
        Send(Out["UseFurniture"], GATE_ID, 0);
        gameStarted = false;
        Delay(300);
        continue;
    }
    
    Send(Out["MoveAvatar"], target.x, target.y);
    Delay(TICK_DELAY);
    
    var newPillow = GetPillowPos();
    if (newPillow.x != -1)
    {
        Send(Out["MoveAvatar"], newPillow.x, newPillow.y);
        lastMoveCmd = DateTime.Now;
    }
}