static public float tileWidth = 9f * Mathf.Sqrt(3) / 2; // width of each tile
void Start()
{
string folderPath = Directory.GetCurrentDirectory().Replace("\\", "/") + "/Assets/ProjectFiles/";
// store errors in a string to be writen to output file
string errorDump = "ERRORS:\r\n";
// dictionary which stores the conditional probabilities of seeing each terrain type next to another (given) type
distribution = new Dictionary <string, List <double> >();
// read probabilities from file
using (StreamReader reader = new StreamReader(folderPath + "TerrainConditionalProbabilities.csv"))
{
// read first line into terrain types list
List <string> terrainTypesFile = reader.ReadLine().Split(',').ToList();
// make sure the list read from file is equal to the given list
foreach (string ts in terrainTypesFile) // all terrain types from file
{
if (ts != "" && !terrainTypes.Contains(ts))
{
errorDump += "file has extra terrain type, " + ts + "\r\n";
}
}
foreach (string ts in terrainTypes) // all given terrain types
{
if (!terrainTypesFile.Contains(ts))
{
errorDump += "file missing terrain type, " + ts + "\r\n";
}
}
// remove the first (blank) and last (if newline) elements of the list
terrainTypes.RemoveAt(0);
if (terrainTypes[terrainTypes.Count - 1].Contains("\r") || terrainTypes[terrainTypes.Count - 1].Contains("\n")) // newlines contain either or both depending on OS
{
terrainTypes.RemoveAt(terrainTypes.Count - 1);
}
// assign number of terrains
numTerrainTypes = terrainTypes.Count;
while (!reader.EndOfStream) // while not end of file
{
// read each line into a list of strings
List <string> values = reader.ReadLine().Split(',').ToList();
string currKey = values[0]; // key is first value in the line
values.RemoveAt(0); // remove first value (key) from line list
if (values[values.Count - 1].Contains("\r") || values[values.Count - 1].Contains("\n"))
{
values.RemoveAt(values.Count - 1); // remove ending newline char
}
List <double> numValues = new List <double>(); // list of probabilities
foreach (string value in values) // loop through each element remaining in the line list
{
double numValue = 0; // sets probability to 0 (if the string cannot be convered)
try // converting string to double
{
numValue = Convert.ToDouble(value);
}
catch (FormatException) // if value cannot be converted to double
{
errorDump += "failed to convert to double on " + value + " in " + currKey + "\r\n";
}
numValues.Add(numValue); // add to current list of probabilities
}
// add terrain type (key) and list of tuples (value) to the dictionary
distribution.Add(currKey, numValues);
}
}
// check if distribution is exhaustive (has all terrain types in both directions)
if (!DictionarySquare(distribution))
{
errorDump += "dictionary not square\r\n";
}
TerrainTile currTile; // empty terrain tile to hold current tile in loop
string currType; // will hold type of current tile
Coordinate currCoord;
string aboveCoordstr, leftCoordstr;
// populate 2D array terrainMap
int widthStart = mapWidthInTiles / 2 - mapWidthInTiles,
heightStart = mapHeightInTiles / 2 - mapHeightInTiles;
int widthEnd = widthStart + mapWidthInTiles,
heightEnd = heightStart + mapHeightInTiles;
for (int i = widthStart; i < widthEnd; i++)
{
for (int j = heightStart; j < heightEnd; j++)
{
currCoord = new Coordinate(i, j); // current spot on the map
leftCoordstr = (new Coordinate(i, j - 1)).AsString();
aboveCoordstr = (new Coordinate(i - 1, j)).AsString();
if (i == widthStart && j == heightStart) // first tile in map
{
currTile = new TerrainTile(i, j);
}
else if (i == widthStart && j != heightStart)
{
currTile = new TerrainTile(terrainTiles[leftCoordstr].type, currCoord);
}
else if (i != widthStart && j == heightStart)
{
currTile = new TerrainTile(terrainTiles[aboveCoordstr].type, currCoord);
}
else
{
currTile = new TerrainTile(terrainTiles[aboveCoordstr].type, terrainTiles[leftCoordstr].type, currCoord);
}
currType = currTile.type;
terrainTiles.Add(currCoord.AsString(), currTile); // add current tile to dictionary
currTile.PlaceTerrainTile();
// incriment the count recording number of each terrain tile
// for testing and balancing purposes
if (counts.ContainsKey(currType))
{
counts[currType]++;
}
else
{
counts[currType] = 1;
}
}
}
foreach (string terrain in terrainTypes)
{
string line = terrain + " not found";
if (counts.ContainsKey(terrain))
{
line = terrain + " : " + counts[terrain].ToString();
}
File.AppendAllText(folderPath + "testfile.txt", line + "\r\n");
}
File.WriteAllText(folderPath + "testfile.txt", errorDump);
}