CellArea3D.cs

using Godot;
 
namespace MPewsey.ManiaMapGodot
{
    public partial class CellArea3D : Area3D
    {
        public int Row { get; private set; }
 
        public int Column { get; private set; }
 
        public RoomNode3D Room { get; private set; }
 
        public static CellArea3D CreateInstance(int row, int column, RoomNode3D room, uint collisionMask)
        {
            var cell = new CellArea3D()
            {
                Row = row,
                Column = column,
                Room = room,
                CollisionLayer = 0,
                CollisionMask = collisionMask,
                Position = room.CellCenterLocalPosition(row, column),
            };
 
            var shape = new BoxShape3D() { Size = room.CellSize };
            var collisionShape = new CollisionShape3D() { Shape = shape };
            cell.AddChild(collisionShape);
            room.AddChild(cell);
            return cell;
        }
 
        public override void _Ready()
        {
            base._Ready();
            BodyEntered += OnBodyEntered;
            AreaEntered += OnAreaEntered;
            BodyExited += OnBodyExited;
            AreaExited += OnAreaExited;
        }
 
        private void OnBodyEntered(Node body)
        {
            EmitOnCellEntered(body);
        }
 
        private void OnAreaEntered(Area3D area)
        {
            EmitOnCellEntered(area);
        }
 
        private void OnBodyExited(Node body)
        {
            EmitOnCellExited(body);
        }
 
        private void OnAreaExited(Area3D area)
        {
            EmitOnCellExited(area);
        }
 
        private void EmitOnCellEntered(Node collision)
        {
            Room.RoomState?.SetCellVisibility(Row, Column, true);
            Room.EmitOnCellAreaEntered(this, collision);
        }
 
        private void EmitOnCellExited(Node collision)
        {
            Room.EmitOnCellAreaExited(this, collision);
        }
    }
}