/// <summary>
/// Attempts to add a new row to a NavMeshChunk
/// </summary>
/// <param name="chunk">Chunk to add a new row to</param>
/// <returns>Whether or not the row was added</returns>
private bool AddNewRowToChunk(NavMeshChunk chunk)
{
// Is this chunk's max column already at the end of the map
if (chunk.GetMaxRow() == this.terrainComp.Size - 1)
{
return(false);
}
int row = chunk.GetMaxRow() + 1;
int startingColumn = chunk.GetMinColumn();
int endColumn = chunk.GetMaxColumn();
List <NavMeshNode> nodesToAdd = new List <NavMeshNode>();
for (int x = startingColumn; x <= endColumn; ++x)
{
int vertexTopLeft = x + (row * this.terrainComp.Size);
NavMeshNode node;
nodeDictionary.TryGetValue(vertexTopLeft, out node);
// Node doesn't exist (was already chunked), so we fail at getting a new column
if (node == null)
{
return(false);
}
// If node is too steep then it cannot be part of this chunk
if (node.TooSteep)
{
return(false);
}
nodesToAdd.Add(node);
}
// If we made it this far, lets add the column into the chunk
foreach (NavMeshNode node in nodesToAdd)
{
chunk.AddNode(node, true);
chunkDictionary.Add(node.VertexTopLeft, chunk);
nodeDictionary.Remove(node.VertexTopLeft);
}
return(true);
}
private void ProcessNewChunk(NavMeshChunk chunk, NavMeshNode startingNode)
{
bool columnsAvail = true;
bool rowsAvail = true;
chunk.AddNode(startingNode, true);
chunkDictionary.Add(startingNode.VertexTopLeft, chunk);
nodeDictionary.Remove(startingNode.VertexTopLeft);
if (startingNode.TooSteep)
{
return;
}
//// TEMP!!!!!!!!!!!!!!!!!!!!
//if (startingNode.VertexTopLeft == 0)
//{
// int i = 5;
// i++;
//}
while (columnsAvail || rowsAvail)
{
if (columnsAvail)
{
columnsAvail = AddNewColumnToChunk(chunk);
}
if (rowsAvail)
{
rowsAvail = AddNewRowToChunk(chunk);
}
}
// Once we've made it here, that means the current chunk cannot expand any more
}
