private bool FillColliderMeshData()
{
//Debug.Log( "[" + ParentTilemap.name + "] FillColliderMeshData -> " + name);
if (Tileset == null || ParentTilemap.ColliderType == eColliderType.None)
{
return(false);
}
System.Type collider2DType = ParentTilemap.Collider2DType == e2DColliderType.EdgeCollider2D ? typeof(EdgeCollider2D) : typeof(PolygonCollider2D);
Component[] aColliders2D = null;
if (ParentTilemap.ColliderType == eColliderType._3D)
{
int totalTiles = m_width * m_height;
if (s_meshCollVertices == null)
{
s_meshCollVertices = new List <Vector3>(totalTiles * 4);
s_meshCollTriangles = new List <int>(totalTiles * 6);
}
else
{
s_meshCollVertices.Clear();
s_meshCollTriangles.Clear();
}
}
else //if (ParentTilemap.ColliderType == eColliderType._2D)
{
m_has2DColliders = true;
s_openEdges.Clear();
aColliders2D = GetComponents(collider2DType);
}
float halvedCollDepth = ParentTilemap.ColliderDepth / 2f;
bool isEmpty = true;
for (int ty = 0, tileIdx = 0; ty < m_height; ++ty)
{
for (int tx = 0; tx < m_width; ++tx, ++tileIdx)
{
uint tileData = m_tileDataList[tileIdx];
if (tileData != Tileset.k_TileData_Empty)
{
int tileId = (int)(tileData & Tileset.k_TileDataMask_TileId);
Tile tile = Tileset.GetTile(tileId);
if (tile != null)
{
#if ENABLE_MERGED_SUBTILE_COLLIDERS
TilesetBrush brush = ParentTilemap.Tileset.FindBrush(Tileset.GetBrushIdFromTileData(tileData));
Vector2[] subTileMergedColliderVertices = brush ? brush.GetMergedSubtileColliderVertices(ParentTilemap, GridPosX + tx, GridPosY + ty, tileData) : null;
#else
Vector2[] subTileMergedColliderVertices = null;
#endif
bool hasMergedColliders = subTileMergedColliderVertices != null;
TileColliderData tileCollData = tile.collData;
if (tileCollData.type != eTileCollider.None || hasMergedColliders)
{
isEmpty = false;
int neighborCollFlags = 0; // don't remove, even using neighborTileCollData, neighborTileCollData is not filled if tile is empty
bool isSurroundedByFullColliders = true;
for (int i = 0; i < s_neighborSegmentMinMax.Length; ++i)
{
s_neighborSegmentMinMax[i].x = float.MaxValue;
s_neighborSegmentMinMax[i].y = float.MinValue;
}
System.Array.Clear(neighborTileCollData, 0, neighborTileCollData.Length);
if (!hasMergedColliders)
{
if ((tileData & (Tileset.k_TileFlag_FlipH | Tileset.k_TileFlag_FlipV | Tileset.k_TileFlag_Rot90)) != 0)
{
tileCollData = tileCollData.Clone();
tileCollData.ApplyFlippingFlags(tileData);
}
for (int i = 0; i < 4; ++i)
{
uint neighborTileData;
bool isTriggerOrPolygon = ParentTilemap.IsTrigger ||
ParentTilemap.ColliderType == eColliderType._2D &&
ParentTilemap.Collider2DType == e2DColliderType.PolygonCollider2D;
switch (i)
{
case 0: // Up Tile
neighborTileData = (tileIdx + m_width) < m_tileDataList.Count ?
m_tileDataList[tileIdx + m_width]
:
isTriggerOrPolygon ? Tileset.k_TileData_Empty : ParentTilemap.GetTileData(GridPosX + tx, GridPosY + ty + 1); break;
case 1: // Right Tile
neighborTileData = (tileIdx + 1) % m_width != 0 ? //(tileIdx + 1) < m_tileDataList.Count ?
m_tileDataList[tileIdx + 1]
:
isTriggerOrPolygon ? Tileset.k_TileData_Empty : ParentTilemap.GetTileData(GridPosX + tx + 1, GridPosY + ty); break;
case 2: // Down Tile
neighborTileData = tileIdx >= m_width ?
m_tileDataList[tileIdx - m_width]
:
isTriggerOrPolygon ? Tileset.k_TileData_Empty : ParentTilemap.GetTileData(GridPosX + tx, GridPosY + ty - 1); break;
case 3: // Left Tile
neighborTileData = tileIdx % m_width != 0 ? //neighborTileId = tileIdx >= 1 ?
m_tileDataList[tileIdx - 1]
:
isTriggerOrPolygon ? Tileset.k_TileData_Empty : ParentTilemap.GetTileData(GridPosX + tx - 1, GridPosY + ty); break;
default: neighborTileData = Tileset.k_TileData_Empty; break;
}
int neighborTileId = (int)(neighborTileData & Tileset.k_TileDataMask_TileId);
if (neighborTileId != Tileset.k_TileId_Empty)
{
Vector2 segmentMinMax;
TileColliderData neighborTileCollider;
neighborTileCollider = Tileset.Tiles[neighborTileId].collData;
if ((neighborTileData & (Tileset.k_TileFlag_FlipH | Tileset.k_TileFlag_FlipV | Tileset.k_TileFlag_Rot90)) != 0)
{
neighborTileCollider = neighborTileCollider.Clone();
if ((neighborTileData & Tileset.k_TileFlag_FlipH) != 0)
{
neighborTileCollider.FlipH();
}
if ((neighborTileData & Tileset.k_TileFlag_FlipV) != 0)
{
neighborTileCollider.FlipV();
}
if ((neighborTileData & Tileset.k_TileFlag_Rot90) != 0)
{
neighborTileCollider.Rot90();
}
}
neighborTileCollData[i] = neighborTileCollider;
isSurroundedByFullColliders &= (neighborTileCollider.type == eTileCollider.Full);
if (neighborTileCollider.type == eTileCollider.None)
{
segmentMinMax = new Vector2(float.MaxValue, float.MinValue); //NOTE: x will be min, y will be max
}
else if (neighborTileCollider.type == eTileCollider.Full)
{
segmentMinMax = new Vector2(0f, 1f); //NOTE: x will be min, y will be max
neighborCollFlags |= (1 << i);
}
else
{
segmentMinMax = new Vector2(float.MaxValue, float.MinValue); //NOTE: x will be min, y will be max
neighborCollFlags |= (1 << i);
for (int j = 0; j < neighborTileCollider.vertices.Length; ++j)
{
Vector2 v = neighborTileCollider.vertices[j];
{
if (i == 0 && v.y == 0 || i == 2 && v.y == 1) //Top || Bottom
{
if (v.x < segmentMinMax.x)
{
segmentMinMax.x = v.x;
}
if (v.x > segmentMinMax.y)
{
segmentMinMax.y = v.x;
}
}
else if (i == 1 && v.x == 0 || i == 3 && v.x == 1) //Right || Left
{
if (v.y < segmentMinMax.x)
{
segmentMinMax.x = v.y;
}
if (v.y > segmentMinMax.y)
{
segmentMinMax.y = v.y;
}
}
}
}
}
s_neighborSegmentMinMax[i] = segmentMinMax;
}
else
{
isSurroundedByFullColliders = false;
}
}
}
// Create Mesh Colliders
if (isSurroundedByFullColliders && !hasMergedColliders)
{
//Debug.Log(" Surrounded! " + tileIdx);
}
else
{
float px0 = tx * CellSize.x;
float py0 = ty * CellSize.y;
Vector2[] collVertices = subTileMergedColliderVertices;
if (!hasMergedColliders)
{
collVertices = tileCollData.type == eTileCollider.Full ? s_fullCollTileVertices : tileCollData.vertices;
}
for (int i = 0; i < collVertices.Length; ++i)
{
Vector2 s0 = collVertices[i];
Vector2 s1 = collVertices[i == (collVertices.Length - 1) ? 0 : i + 1];
if (hasMergedColliders)
{
++i; // add ++i; in this case to go 2 by 2 because the collVertices for merged colliders will have the segments in pairs
}
// full collider optimization
if ((tileCollData.type == eTileCollider.Full) &&
(
(i == 0 && neighborTileCollData[3].type == eTileCollider.Full) || // left tile has collider
(i == 1 && neighborTileCollData[0].type == eTileCollider.Full) || // top tile has collider
(i == 2 && neighborTileCollData[1].type == eTileCollider.Full) || // right tile has collider
(i == 3 && neighborTileCollData[2].type == eTileCollider.Full) // bottom tile has collider
)
)
{
continue;
}
// polygon collider optimization
else // if( tileCollData.type == eTileCollider.Polygon ) Or Full colliders if neighbor is not Full as well
{
Vector2 n, m;
if (s0.y == 1f && s1.y == 1f) // top side
{
if ((neighborCollFlags & 0x1) != 0) // top tile has collider
{
n = s_neighborSegmentMinMax[0];
if (n.x < n.y && n.x <= s0.x && n.y >= s1.x)
{
continue;
}
}
}
else if (s0.x == 1f && s1.x == 1f) // right side
{
if ((neighborCollFlags & 0x2) != 0) // right tile has collider
{
n = s_neighborSegmentMinMax[1];
if (n.x < n.y && n.x <= s1.y && n.y >= s0.y)
{
continue;
}
}
}
else if (s0.y == 0f && s1.y == 0f) // bottom side
{
if ((neighborCollFlags & 0x4) != 0) // bottom tile has collider
{
n = s_neighborSegmentMinMax[2];
if (n.x < n.y && n.x <= s1.x && n.y >= s0.x)
{
continue;
}
}
}
else if (s0.x == 0f && s1.x == 0f) // left side
{
if ((neighborCollFlags & 0x8) != 0) // left tile has collider
{
n = s_neighborSegmentMinMax[3];
if (n.x < n.y && n.x <= s0.y && n.y >= s1.y)
{
continue;
}
}
}
else if (s0.y == 1f && s1.x == 1f) // top - right diagonal
{
if ((neighborCollFlags & 0x1) != 0 && (neighborCollFlags & 0x2) != 0)
{
n = s_neighborSegmentMinMax[0];
m = s_neighborSegmentMinMax[1];
if ((n.x < n.y && n.x <= s0.x && n.y == 1f) && (m.x < m.y && m.x <= s1.y && m.y == 1f))
{
continue;
}
}
}
else if (s0.x == 1f && s1.y == 0f) // right - bottom diagonal
{
if ((neighborCollFlags & 0x2) != 0 && (neighborCollFlags & 0x4) != 0)
{
n = s_neighborSegmentMinMax[1];
m = s_neighborSegmentMinMax[2];
if ((n.x < n.y && n.x == 0f && n.y >= s0.y) && (m.x < m.y && m.x <= s1.x && m.y == 1f))
{
continue;
}
}
}
else if (s0.y == 0f && s1.x == 0f) // bottom - left diagonal
{
if ((neighborCollFlags & 0x4) != 0 && (neighborCollFlags & 0x8) != 0)
{
n = s_neighborSegmentMinMax[2];
m = s_neighborSegmentMinMax[3];
if ((n.x < n.y && n.x == 0f && n.y >= s0.x) && (m.x < m.y && m.x == 0f && m.y >= s1.y))
{
continue;
}
}
}
else if (s0.x == 0f && s1.y == 1f) // left - top diagonal
{
if ((neighborCollFlags & 0x8) != 0 && (neighborCollFlags & 0x1) != 0)
{
n = s_neighborSegmentMinMax[3];
m = s_neighborSegmentMinMax[0];
if ((n.x < n.y && n.x <= s0.y && n.y == 1f) && (m.x < m.y && m.x == 0f && m.y >= s1.x))
{
continue;
}
}
}
}
// Update s0 and s1 to world positions
s0.x = px0 + CellSize.x * s0.x; s0.y = py0 + CellSize.y * s0.y;
s1.x = px0 + CellSize.x * s1.x; s1.y = py0 + CellSize.y * s1.y;
if (ParentTilemap.ColliderType == eColliderType._3D)
{
int collVertexIdx = s_meshCollVertices.Count;
s_meshCollVertices.Add(new Vector3(s0.x, s0.y, -halvedCollDepth));
s_meshCollVertices.Add(new Vector3(s0.x, s0.y, halvedCollDepth));
s_meshCollVertices.Add(new Vector3(s1.x, s1.y, halvedCollDepth));
s_meshCollVertices.Add(new Vector3(s1.x, s1.y, -halvedCollDepth));
s_meshCollTriangles.Add(collVertexIdx + 0);
s_meshCollTriangles.Add(collVertexIdx + 1);
s_meshCollTriangles.Add(collVertexIdx + 2);
s_meshCollTriangles.Add(collVertexIdx + 2);
s_meshCollTriangles.Add(collVertexIdx + 3);
s_meshCollTriangles.Add(collVertexIdx + 0);
}
else //if( ParentTilemap.ColliderType == eColliderType._2D )
{
int linkedSegments = 0;
int segmentIdxToMerge = -1;
for (int edgeIdx = s_openEdges.Count - 1; edgeIdx >= 0 && linkedSegments < 2; --edgeIdx)
{
LinkedList <Vector2> edgeSegments = s_openEdges[edgeIdx];
if (edgeSegments.First.Value == edgeSegments.Last.Value)
{
continue; //skip closed edges
}
if (edgeSegments.Last.Value == s0)
{
if (segmentIdxToMerge >= 0)
{
LinkedList <Vector2> segmentToMerge = s_openEdges[segmentIdxToMerge];
if (s0 == segmentToMerge.First.Value)
{
for (LinkedListNode <Vector2> node = segmentToMerge.First.Next; node != null; node = node.Next)
{
edgeSegments.AddLast(node.Value);
}
s_openEdges.RemoveAt(segmentIdxToMerge);
}
/* Cannot join head with head or tail with tail, it will change the segment normal
* else
* for (LinkedListNode<Vector2> node = segmentToMerge.Last.Previous; node != null; node = node.Previous)
* edgeSegments.AddLast(node.Value);*/
}
else
{
segmentIdxToMerge = edgeIdx;
edgeSegments.AddLast(s1);
}
++linkedSegments;
}
/* Cannot join head with head or tail with tail, it will change the segment normal
* else if( edgeSegments.Last.Value == s1 )
* else if (edgeSegments.First.Value == s0)*/
else if (edgeSegments.First.Value == s1)
{
if (segmentIdxToMerge >= 0)
{
LinkedList <Vector2> segmentToMerge = s_openEdges[segmentIdxToMerge];
if (s1 == segmentToMerge.Last.Value)
{
for (LinkedListNode <Vector2> node = edgeSegments.First.Next; node != null; node = node.Next)
{
segmentToMerge.AddLast(node.Value);
}
s_openEdges.RemoveAt(edgeIdx);
}
/* Cannot join head with head or tail with tail, it will change the segment normal
* else
* for (LinkedListNode<Vector2> node = edgeSegments.First.Next; node != null; node = node.Next)
* segmentToMerge.AddFirst(node.Value);*/
}
else
{
segmentIdxToMerge = edgeIdx;
edgeSegments.AddFirst(s0);
}
++linkedSegments;
}
}
if (linkedSegments == 0)
{
LinkedList <Vector2> newEdge = new LinkedList <Vector2>();
newEdge.AddFirst(s0);
newEdge.AddLast(s1);
s_openEdges.Add(newEdge);
}
}
}
}
}
}
}
}
}
if (ParentTilemap.ColliderType == eColliderType._2D)
{
//+++ Process Edges
//(NOTE: this was added to fix issues related with lighting, otherwise leave this commented)
{
// Remove vertex inside a line
RemoveRedundantVertices(s_openEdges);
// Split segments (NOTE: This is not working with polygon colliders)
/*/ commented unless necessary for performance reasons
* if (ParentTilemap.Collider2DType == e2DColliderType.EdgeCollider2D)
* {
* openEdges = SplitSegments(openEdges);
* }
* //*/
}
//---
//Create Edges
for (int i = 0; i < s_openEdges.Count; ++i)
{
LinkedList <Vector2> edgeSegments = s_openEdges[i];
bool reuseCollider = i < aColliders2D.Length;
Collider2D collider2D = reuseCollider ? (Collider2D)aColliders2D[i] : (Collider2D)gameObject.AddComponent(collider2DType);
collider2D.enabled = true;
collider2D.isTrigger = ParentTilemap.IsTrigger;
collider2D.sharedMaterial = ParentTilemap.PhysicMaterial2D;
if (ParentTilemap.Collider2DType == e2DColliderType.EdgeCollider2D)
{
((EdgeCollider2D)collider2D).points = edgeSegments.ToArray();
}
else
{
((PolygonCollider2D)collider2D).SetPath(0, edgeSegments.ToArray());
}
}
//Destroy unused edge colliders
for (int i = s_openEdges.Count; i < aColliders2D.Length; ++i)
{
if (!s_isOnValidate)
{
DestroyImmediate(aColliders2D[i]);
}
else
{
((Collider2D)aColliders2D[i]).enabled = false;
}
}
}
return(!isEmpty);
}