47 lines
1.9 KiB
C#
47 lines
1.9 KiB
C#
using System.Numerics;
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using Robust.Shared.Map;
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using Robust.Shared.Map.Components;
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namespace Content.Shared.Coordinates.Helpers
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{
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public static class SnapgridHelper
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{
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public static EntityCoordinates SnapToGrid(this EntityCoordinates coordinates, IEntityManager? entMan = null, IMapManager? mapManager = null)
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{
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IoCManager.Resolve(ref entMan, ref mapManager);
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var gridId = coordinates.GetGridUid(entMan);
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if (gridId == null)
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{
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var xformSys = entMan.System<SharedTransformSystem>();
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var mapPos = xformSys.ToMapCoordinates(coordinates);
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var mapX = (int)Math.Floor(mapPos.X) + 0.5f;
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var mapY = (int)Math.Floor(mapPos.Y) + 0.5f;
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mapPos = new MapCoordinates(new Vector2(mapX, mapY), mapPos.MapId);
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return xformSys.ToCoordinates(coordinates.EntityId, mapPos);
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}
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var grid = entMan.GetComponent<MapGridComponent>(gridId.Value);
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var tileSize = grid.TileSize;
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var localPos = coordinates.WithEntityId(gridId.Value).Position;
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var x = (int)Math.Floor(localPos.X / tileSize) + tileSize / 2f;
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var y = (int)Math.Floor(localPos.Y / tileSize) + tileSize / 2f;
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var gridPos = new EntityCoordinates(gridId.Value, new Vector2(x, y));
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return gridPos.WithEntityId(coordinates.EntityId);
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}
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public static EntityCoordinates SnapToGrid(this EntityCoordinates coordinates, MapGridComponent grid)
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{
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var tileSize = grid.TileSize;
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var localPos = coordinates.Position;
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var x = (int)Math.Floor(localPos.X / tileSize) + tileSize / 2f;
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var y = (int)Math.Floor(localPos.Y / tileSize) + tileSize / 2f;
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return new EntityCoordinates(coordinates.EntityId, x, y);
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}
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}
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}
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