/// <summary>
/// Constructs a dictionary that maps a TileMap to a Physics2DServer-created StaticBody2D (RID).
/// Is used for both the walls and ledges dictionaries.
/// </summary>
/// <param name="tileMaps">List of TileMaps.</param>
/// <param name="worldSpace">RID of the World Space.</param>
/// <returns>A Dictionary that maps TileMaps to an RID of a StaticBody2D.</returns>
public static Dictionary<TileMap, RID> ConstructTileMapCollisionMap(this TileMapList tileMaps, RID worldSpace)
{
if (tileMaps is null) throw new ArgumentNullException(nameof(tileMaps));
var tileMapToSB2Ds = new Dictionary<TileMap, RID>();
foreach (TileMap tileMap in tileMaps.Values)
{
RID edgeSB2D = Physics2DServer.BodyCreate();
Physics2DServer.BodySetMode(edgeSB2D, Physics2DServer.BodyMode.Static);
Physics2DServer.BodySetSpace(edgeSB2D, worldSpace);
Physics2DServer.BodySetState(edgeSB2D, Physics2DServer.BodyState.Transform, Transform2D.Identity);
Physics2DServer.BodySetCollisionLayer(edgeSB2D, LayersFuncs.GetLayersValue(Terrain));
Physics2DServer.BodySetCollisionMask(edgeSB2D, LayersFuncs.GetLayersValue(PlayerEntity, NpcEntity));
tileMapToSB2Ds.Add(tileMap, edgeSB2D);
}
return tileMapToSB2Ds;
}
ConstructFloorPartitions(this TileMapList tileMaps, Dictionary <TileMap, RID> tileMapToFloorArea2Ds,
PerimeterData perimData)
{
if (tileMaps is null)
{
throw new ArgumentNullException(nameof(tileMaps));
}
if (tileMapToFloorArea2Ds is null)
{
throw new ArgumentNullException(nameof(tileMapToFloorArea2Ds));
}
if (perimData is null)
{
throw new ArgumentNullException(nameof(perimData));
}
var floorArea2DToPolygons = new Dictionary <RID, List <ConvexPolygonShape2D> >();
foreach (TileMap tileMap in tileMaps.Values)
{
RID area2dRID = tileMapToFloorArea2Ds[tileMap];
floorArea2DToPolygons[area2dRID] = new List <ConvexPolygonShape2D>();
Physics2DServer.AreaSetCollisionLayer(area2dRID, LayersFuncs.GetLayersValue(Terrain));
Physics2DServer.AreaSetCollisionMask(area2dRID, LayersFuncs.GetLayersValue(PlayerEntity, NpcEntity));
int maxTileGroups = perimData.GetMaxTileGroup(tileMap);
for (int tileGroup = 0; tileGroup < maxTileGroups; tileGroup++)
{
int maxHoleGroups = perimData.GetMaxHoleGroup(tileMap, tileGroup);
var allPerims = new List <Vector2> [maxHoleGroups];
for (int holeGroup = 0; holeGroup < maxHoleGroups; holeGroup++)
{ //put all perims (outer and hole) from one tile group into a single array of lists (gods help me) for partitioning
EdgeCollection <TileEdge> edgeColl = perimData.GetEdgeCollection(tileMap, tileGroup, holeGroup);
allPerims[holeGroup] = new List <Vector2>(edgeColl.GetSimplifiedPerim());
}
List <ConvexPolygonShape2D> partitionedRectangles = _PartitionPolygonToRectangles(allPerims);
foreach (ConvexPolygonShape2D shape in partitionedRectangles)
{
Physics2DServer.AreaAddShape(area2dRID, shape.GetRid());
GD.PrintS("added shape " + shape.GetRid().GetId() + " to area: " + area2dRID.GetId());
}
floorArea2DToPolygons[area2dRID].AddRange(partitionedRectangles);
}
}
return(floorArea2DToPolygons);
}
