/// <summary>
/// Imports the specified world into the SabreCSG model.
/// </summary>
/// <param name="model">The model to import into.</param>
/// <param name="world">The world to be imported.</param>
/// <param name="scale">The scale modifier.</param>
public static void Import(Transform rootTransform, MapWorld world)
{
_conversionScale = 1.0f / _Scale;
// create a material searcher to associate materials automatically.
MaterialSearcher materialSearcher = new MaterialSearcher();
var mapTransform = CreateGameObjectWithUniqueName(world.mapName, rootTransform);
mapTransform.position = Vector3.zero;
// Index of entities by trenchbroom id
var entitiesById = new Dictionary <int, EntityContainer>();
var layers = new List <EntityContainer>();
for (int e = 0; e < world.Entities.Count; e++)
{
var entity = world.Entities[e];
//EntityContainer eContainer = null;
if (entity.tbId >= 0)
{
var name = String.IsNullOrEmpty(entity.tbName) ? "Unnamed" : entity.tbName;
var t = CreateGameObjectWithUniqueName(name, mapTransform);
var eContainer = new EntityContainer(t, entity);
entitiesById.Add(entity.tbId, eContainer);
if (entity.tbType == "_tb_layer")
{
layers.Add(eContainer);
eContainer.transform.SetParent(null); // unparent until layers are sorted by sort index
}
}
}
var defaultLayer = CreateGameObjectWithUniqueName("Default Layer", mapTransform);
layers = layers.OrderBy(l => l.entity.tbLayerSortIndex).ToList(); // sort layers by layer sort index
foreach (var l in layers)
{
l.transform.SetParent(mapTransform); // parent layers to map in order
}
bool valveFormat = world.valveFormat;
// iterate through all entities.
for (int e = 0; e < world.Entities.Count; e++)
{
#if UNITY_EDITOR
UnityEditor.EditorUtility.DisplayProgressBar("Importing Quake 1 Map", "Converting Quake 1 Entities To Brushes (" + (e + 1) + " / " + world.Entities.Count + ")...", e / (float)world.Entities.Count);
#endif
MapEntity entity = world.Entities[e];
Transform brushParent = mapTransform;
bool isLayer = false;
bool isTrigger = false;
if (entity.ClassName == "worldspawn")
{
brushParent = defaultLayer;
}
else if (entity.tbType == "_tb_layer")
{
isLayer = true;
if (entitiesById.TryGetValue(entity.tbId, out EntityContainer eContainer))
{
brushParent = eContainer.transform;
}
}
else if (entity.tbType == "_tb_group")
{
if (entitiesById.TryGetValue(entity.tbId, out EntityContainer eContainer))
{
brushParent = eContainer.transform;
}
}
else
{
if (entity.ClassName.Contains("trigger"))
{
isTrigger = true;
}
brushParent = CreateGameObjectWithUniqueName(entity.ClassName, mapTransform);
}
if (brushParent != mapTransform && brushParent != defaultLayer)
{
if (entity.tbGroup > 0)
{
if (entitiesById.TryGetValue(entity.tbGroup, out EntityContainer eContainer))
{
brushParent.SetParent(eContainer.transform);
}
}
else if (entity.tbLayer > 0)
{
if (entitiesById.TryGetValue(entity.tbLayer, out EntityContainer eContainer))
{
brushParent.SetParent(eContainer.transform);
}
}
else if (!isLayer)
{
brushParent.SetParent(defaultLayer);
}
}
//if(entity.)
if (entity.Brushes.Count == 0)
{
continue;
}
var model = ChiselModelManager.CreateNewModel(brushParent);
// var model = OperationsUtility.CreateModelInstanceInScene(brushParent);
var parent = model.transform;
if (isTrigger)
{
//model.Settings = (model.Settings | ModelSettingsFlags.IsTrigger | ModelSettingsFlags.SetColliderConvex | ModelSettingsFlags.DoNotRender);
}
// iterate through all entity brushes.
for (int i = 0; i < entity.Brushes.Count; i++)
{
MapBrush brush = entity.Brushes[i];
// build a very large cube brush.
ChiselBrush go = ChiselComponentFactory.Create <ChiselBrush>(model);
go.definition.surfaceDefinition = new ChiselSurfaceDefinition();
go.definition.surfaceDefinition.EnsureSize(6);
BrushMesh brushMesh = new BrushMesh();
go.definition.brushOutline = brushMesh;
BrushMeshFactory.CreateBox(ref brushMesh, new Vector3(-4096, -4096, -4096), new Vector3(4096, 4096, 4096), in go.definition.surfaceDefinition);
// prepare for uv calculations of clip planes after cutting.
var planes = new float4[brush.Sides.Count];
var planeSurfaces = new ChiselSurface[brush.Sides.Count];
// compute all the sides of the brush that will be clipped.
for (int j = brush.Sides.Count; j-- > 0;)
{
MapBrushSide side = brush.Sides[j];
// detect excluded polygons.
//if (IsExcludedMaterial(side.Material))
//polygon.UserExcludeFromFinal = true;
// detect collision-only brushes.
//if (IsInvisibleMaterial(side.Material))
//pr.IsVisible = false;
// find the material in the unity project automatically.
Material material;
string materialName = side.Material.Replace("*", "#");
material = materialSearcher.FindMaterial(new string[] { materialName });
if (material == null)
{
material = ChiselMaterialManager.DefaultFloorMaterial;
}
// create chisel surface for the clip.
ChiselSurface surface = new ChiselSurface();
surface.brushMaterial = ChiselBrushMaterial.CreateInstance(material, ChiselMaterialManager.DefaultPhysicsMaterial);
surface.surfaceDescription = SurfaceDescription.Default;
// detect collision-only polygons.
if (IsInvisibleMaterial(side.Material))
{
surface.brushMaterial.LayerUsage &= ~LayerUsageFlags.RenderReceiveCastShadows;
}
// detect excluded polygons.
if (IsExcludedMaterial(side.Material))
{
surface.brushMaterial.LayerUsage &= LayerUsageFlags.CastShadows;
surface.brushMaterial.LayerUsage |= LayerUsageFlags.Collidable;
}
// calculate the clipping planes.
Plane clip = new Plane(go.transform.InverseTransformPoint(new Vector3(side.Plane.P1.X, side.Plane.P1.Z, side.Plane.P1.Y) * _conversionScale), go.transform.InverseTransformPoint(new Vector3(side.Plane.P2.X, side.Plane.P2.Z, side.Plane.P2.Y) * _conversionScale), go.transform.InverseTransformPoint(new Vector3(side.Plane.P3.X, side.Plane.P3.Z, side.Plane.P3.Y) * _conversionScale));
planes[j] = new float4(clip.normal, clip.distance);
planeSurfaces[j] = surface;
}
// cut all the clipping planes out of the brush in one go.
brushMesh.Cut(planes, planeSurfaces);
// now iterate over the planes to calculate UV coordinates.
int[] indices = new int[brush.Sides.Count];
for (int k = 0; k < planes.Length; k++)
{
var plane = planes[k];
int closestIndex = 0;
float closestDistance = math.lengthsq(plane - brushMesh.planes[0]);
for (int j = 1; j < brushMesh.planes.Length; j++)
{
float testDistance = math.lengthsq(plane - brushMesh.planes[j]);
if (testDistance < closestDistance)
{
closestIndex = j;
closestDistance = testDistance;
}
}
indices[k] = closestIndex;
}
for (int j = 0; j < indices.Length; j++)
{
brushMesh.planes[indices[j]] = planes[j];
}
for (int j = brush.Sides.Count; j-- > 0;)
{
MapBrushSide side = brush.Sides[j];
var surface = brushMesh.polygons[indices[j]].surface;
var material = surface.brushMaterial.RenderMaterial;
// calculate the texture coordinates.
int w = 256;
int h = 256;
if (material.mainTexture != null)
{
w = material.mainTexture.width;
h = material.mainTexture.height;
}
var clip = new Plane(planes[j].xyz, planes[j].w);
if (world.valveFormat)
{
var uAxis = new VmfAxis(side.t1, side.Offset.X, side.Scale.X);
var vAxis = new VmfAxis(side.t2, side.Offset.Y, side.Scale.Y);
CalculateTextureCoordinates(go, surface, clip, w, h, uAxis, vAxis);
}
else
{
if (GetTextureAxises(clip, out MapVector3 t1, out MapVector3 t2))
{
var uAxis = new VmfAxis(t1, side.Offset.X, side.Scale.X);
var vAxis = new VmfAxis(t2, side.Offset.Y, side.Scale.Y);
CalculateTextureCoordinates(go, surface, clip, w, h, uAxis, vAxis);
}
}
}
try
{
// finalize the brush by snapping planes and centering the pivot point.
go.transform.position += brushMesh.CenterAndSnapPlanes();
}
catch
{
// Brush failed, destroy brush
GameObject.DestroyImmediate(go);
}
}
}
#if UNITY_EDITOR
UnityEditor.EditorUtility.ClearProgressBar();
#endif
}
private static void CalculateTextureCoordinates(ChiselBrush pr, ChiselSurface surface, Plane clip, int textureWidth, int textureHeight, VmfAxis UAxis, VmfAxis VAxis)
{
var localToPlaneSpace = (Matrix4x4)MathExtensions.GenerateLocalToPlaneSpaceMatrix(new float4(clip.normal, clip.distance));
var planeSpaceToLocal = (Matrix4x4)math.inverse(localToPlaneSpace);
UAxis.Translation %= textureWidth;
VAxis.Translation %= textureHeight;
if (UAxis.Translation < -textureWidth / 2f)
{
UAxis.Translation += textureWidth;
}
if (VAxis.Translation < -textureHeight / 2f)
{
VAxis.Translation += textureHeight;
}
var scaleX = textureWidth * UAxis.Scale * _conversionScale;
var scaleY = textureHeight * VAxis.Scale * _conversionScale;
var uoffset = Vector3.Dot(Vector3.zero, new Vector3(UAxis.Vector.X, UAxis.Vector.Z, UAxis.Vector.Y)) + (UAxis.Translation / textureWidth);
var voffset = Vector3.Dot(Vector3.zero, new Vector3(VAxis.Vector.X, VAxis.Vector.Z, VAxis.Vector.Y)) + (VAxis.Translation / textureHeight);
var uVector = new Vector4(UAxis.Vector.X / scaleX, UAxis.Vector.Z / scaleX, UAxis.Vector.Y / scaleX, uoffset);
var vVector = new Vector4(VAxis.Vector.X / scaleY, VAxis.Vector.Z / scaleY, VAxis.Vector.Y / scaleY, voffset);
var uvMatrix = new UVMatrix(uVector, -vVector);
var matrix = uvMatrix.ToMatrix();
matrix = matrix * planeSpaceToLocal;
surface.surfaceDescription.UV0 = new UVMatrix(matrix);
}