public void ReplaceTile (int x, int z, int w, int d, Int3[] verts, int[] tris, bool worldSpace) {
if(x + w > tileXCount || z+d > tileZCount || x < 0 || z < 0) {
throw new System.ArgumentException ("Tile is placed at an out of bounds position or extends out of the graph bounds ("+x+", " + z + " [" + w + ", " + d+ "] " + tileXCount + " " + tileZCount + ")");
}
if (w < 1 || d < 1) throw new System.ArgumentException ("width and depth must be greater or equal to 1. Was " + w + ", " + d);
//Remove previous tiles
for (int cz=z; cz < z+d;cz++) {
for (int cx=x; cx < x+w;cx++) {
NavmeshTile otile = tiles[cx + cz*tileXCount];
if (otile == null) continue;
//Remove old tile connections
RemoveConnectionsFromTile (otile);
for (int i=0;i<otile.nodes.Length;i++) {
otile.nodes[i].Destroy();
}
for (int qz=otile.z; qz < otile.z+otile.d;qz++) {
for (int qx=otile.x; qx < otile.x+otile.w;qx++) {
NavmeshTile qtile = tiles[qx + qz*tileXCount];
if (qtile == null || qtile != otile) throw new System.Exception("This should not happen");
if (qz < z || qz >= z+d || qx < x || qx >= x+w) {
//if out of this tile's bounds, replace with empty tile
tiles[qx + qz*tileXCount] = NewEmptyTile(qx,qz);
if (batchTileUpdate) {
batchUpdatedTiles.Add (qx + qz*tileXCount);
}
} else {
//Will be replaced by the new tile
tiles[qx + qz*tileXCount] = null;
}
}
}
}
}
//Create a new navmesh tile and assign its settings
var tile = new NavmeshTile();
tile.x = x;
tile.z = z;
tile.w = w;
tile.d = d;
tile.tris = tris;
tile.verts = verts;
tile.bbTree = new BBTree();
if (tile.tris.Length % 3 != 0) throw new System.ArgumentException ("Triangle array's length must be a multiple of 3 (tris)");
if (tile.verts.Length > 0xFFFF) throw new System.ArgumentException ("Too many vertices per tile (more than 65535)");
if (!worldSpace) {
if (!Mathf.Approximately (x*tileSizeX*cellSize*Int3.FloatPrecision, (float)Math.Round(x*tileSizeX*cellSize*Int3.FloatPrecision))) Debug.LogWarning ("Possible numerical imprecision. Consider adjusting tileSize and/or cellSize");
if (!Mathf.Approximately (z*tileSizeZ*cellSize*Int3.FloatPrecision, (float)Math.Round(z*tileSizeZ*cellSize*Int3.FloatPrecision))) Debug.LogWarning ("Possible numerical imprecision. Consider adjusting tileSize and/or cellSize");
var offset = (Int3)(new Vector3((x * tileSizeX * cellSize),0,(z * tileSizeZ * cellSize)) + forcedBounds.min);
for (int i=0;i<verts.Length;i++) {
verts[i] += offset;
}
}
var nodes = new TriangleMeshNode[tile.tris.Length/3];
tile.nodes = nodes;
//Here we are faking a new graph
//The tile is not added to any graphs yet, but to get the position querys from the nodes
//to work correctly (not throw exceptions because the tile is not calculated) we fake a new graph
//and direct the position queries directly to the tile
int graphIndex = AstarPath.active.astarData.graphs.Length;
TriangleMeshNode.SetNavmeshHolder (graphIndex, tile);
//This index will be ORed to the triangle indices
int tileIndex = x + z*tileXCount;
tileIndex <<= TileIndexOffset;
//Create nodes and assign triangle indices
for (int i=0;i<nodes.Length;i++) {
var node = new TriangleMeshNode(active);
nodes[i] = node;
node.GraphIndex = (uint)graphIndex;
node.v0 = tile.tris[i*3+0] | tileIndex;
node.v1 = tile.tris[i*3+1] | tileIndex;
node.v2 = tile.tris[i*3+2] | tileIndex;
//Degenerate triangles might occur, but they will not cause any large troubles anymore
//if (Polygon.IsColinear (node.GetVertex(0), node.GetVertex(1), node.GetVertex(2))) {
// Debug.Log ("COLINEAR!!!!!!");
//}
//Make sure the triangle is clockwise
if (!Polygon.IsClockwise (node.GetVertex(0), node.GetVertex(1), node.GetVertex(2))) {
int tmp = node.v0;
node.v0 = node.v2;
node.v2 = tmp;
}
node.Walkable = true;
node.Penalty = initialPenalty;
node.UpdatePositionFromVertices();
}
tile.bbTree.RebuildFrom(nodes);
CreateNodeConnections (tile.nodes);
//Set tile
for (int cz=z; cz < z+d;cz++) {
for (int cx=x; cx < x+w;cx++) {
tiles[cx + cz*tileXCount] = tile;
}
}
if (batchTileUpdate) {
batchUpdatedTiles.Add (x + z*tileXCount);
} else {
ConnectTileWithNeighbours(tile);
/*if (x > 0) ConnectTiles (tiles[(x-1) + z*tileXCount], tile);
if (z > 0) ConnectTiles (tiles[x + (z-1)*tileXCount], tile);
if (x < tileXCount-1) ConnectTiles (tiles[(x+1) + z*tileXCount], tile);
if (z < tileZCount-1) ConnectTiles (tiles[x + (z+1)*tileXCount], tile);*/
}
//Remove the fake graph
TriangleMeshNode.SetNavmeshHolder (graphIndex, null);
//Real graph index
//TODO, could this step be changed for this function, is a fake index required?
graphIndex = AstarPath.active.astarData.GetGraphIndex (this);
for (int i=0;i<nodes.Length;i++) nodes[i].GraphIndex = (uint)graphIndex;
}
/** Create a tile at tile index \a x , \a z from the mesh.
* \warning This implementation is not thread safe. It uses cached variables to improve performance
*/
NavmeshTile CreateTile (Voxelize vox, VoxelMesh mesh, int x, int z) {
if (mesh.tris == null) throw new System.ArgumentNullException ("mesh.tris");
if (mesh.verts == null) throw new System.ArgumentNullException ("mesh.verts");
//Create a new navmesh tile and assign its settings
var tile = new NavmeshTile();
tile.x = x;
tile.z = z;
tile.w = 1;
tile.d = 1;
tile.tris = mesh.tris;
tile.verts = mesh.verts;
tile.bbTree = new BBTree();
if (tile.tris.Length % 3 != 0) throw new System.ArgumentException ("Indices array's length must be a multiple of 3 (mesh.tris)");
if (tile.verts.Length >= VertexIndexMask) throw new System.ArgumentException ("Too many vertices per tile (more than "+VertexIndexMask+")." +
"\nTry enabling ASTAR_RECAST_LARGER_TILES under the 'Optimizations' tab in the A* Inspector");
//Dictionary<Int3, int> firstVerts = new Dictionary<Int3, int> ();
Dictionary<Int3, int> firstVerts = cachedInt3_int_dict;
firstVerts.Clear();
var compressedPointers = new int[tile.verts.Length];
int count = 0;
for (int i=0;i<tile.verts.Length;i++) {
if (!firstVerts.ContainsKey(tile.verts[i])) {
firstVerts.Add (tile.verts[i], count);
compressedPointers[i] = count;
tile.verts[count] = tile.verts[i];
count++;
} else {
// There are some cases, rare but still there, that vertices are identical
compressedPointers[i] = firstVerts[tile.verts[i]];
}
}
for (int i=0;i<tile.tris.Length;i++) {
tile.tris[i] = compressedPointers[tile.tris[i]];
}
var compressed = new Int3[count];
for (int i=0;i<count;i++) compressed[i] = tile.verts[i];
tile.verts = compressed;
var nodes = new TriangleMeshNode[tile.tris.Length/3];
tile.nodes = nodes;
//Here we are faking a new graph
//The tile is not added to any graphs yet, but to get the position querys from the nodes
//to work correctly (not throw exceptions because the tile is not calculated) we fake a new graph
//and direct the position queries directly to the tile
int graphIndex = AstarPath.active.astarData.graphs.Length;
TriangleMeshNode.SetNavmeshHolder (graphIndex, tile);
//This index will be ORed to the triangle indices
int tileIndex = x + z*tileXCount;
tileIndex <<= TileIndexOffset;
//Create nodes and assign triangle indices
for (int i=0;i<nodes.Length;i++) {
var node = new TriangleMeshNode(active);
nodes[i] = node;
node.GraphIndex = (uint)graphIndex;
node.v0 = tile.tris[i*3+0] | tileIndex;
node.v1 = tile.tris[i*3+1] | tileIndex;
node.v2 = tile.tris[i*3+2] | tileIndex;
//Degenerate triangles might occur, but they will not cause any large troubles anymore
//if (Polygon.IsColinear (node.GetVertex(0), node.GetVertex(1), node.GetVertex(2))) {
// Debug.Log ("COLINEAR!!!!!!");
//}
//Make sure the triangle is clockwise
if (!Polygon.IsClockwise (node.GetVertex(0), node.GetVertex(1), node.GetVertex(2))) {
int tmp = node.v0;
node.v0 = node.v2;
node.v2 = tmp;
}
node.Walkable = true;
node.Penalty = initialPenalty;
node.UpdatePositionFromVertices();
}
tile.bbTree.RebuildFrom(nodes);
CreateNodeConnections (tile.nodes);
//Remove the fake graph
TriangleMeshNode.SetNavmeshHolder (graphIndex, null);
return tile;
}
