/// <summary>
/// Initialize the hex map to an empty flat plain.
/// </summary>
/// <param name="bounds">
/// A bounds object representing the dimensions of the hex map. Will
/// be scaled to fit within a multiple of MeshConstants.ChunkSize.
/// </param>
/// <param name="wrapping">
/// Should the horizontal bounds of the grid wrap into their opposite
/// side?
/// </param>
/// <param name="editMode">
/// Should the map be editable immediately after being initialized?
/// </param>
/// <param name="hexOuterRadius">
/// The distance of each hex from its center to a circle
/// intersecting each corner of the hexagon. Scales the size of all
/// other visual elements on the hex map.
/// </param>
/// <param name="seed">
/// The random seed used to initialize the hash grid for the map.
/// </param>
public HexMap Initialize(
Rect bounds,
int seed,
float hexOuterRadius,
bool wrapping,
bool editMode
)
{
if (!GetComponent <HexMapShaderData>())
{
_hexShaderData = gameObject.AddComponent <HexMapShaderData>();
_hexShaderData.HexMap = this;
}
if (!_hexLabelPrefab)
{
// TODO: This is a presentation concern and should not be in this class.
_hexLabelPrefab = Resources.Load <Text>("Hex Label");
}
ClearHexUnits(_units);
ClearColumnTransforms(HexMeshColumnTransforms);
int columns, rows;
if (
bounds.x < 0 || bounds.y < 0 ||
!bounds.size.IsFactorOf(HexMeshConstants.ChunkSize)
)
{
RootLog.Log(
"Unsupported map size. Clamping dimensions to chunk size.",
Severity.Warning,
"HexMap"
);
Vector2 clamped =
bounds.size.ClampToFactorOf(HexMeshConstants.ChunkSize);
bounds = new Rect(
0,
0,
clamped.x,
clamped.y
);
}
columns = (int)bounds.width;
rows = (int)bounds.height;
// Set to -1 so new maps always gets centered.
CenterHexMeshColumnIndex = -1;
HexagonPoint.InitializeHashGrid(seed);
if (!_terrainMaterial)
{
_terrainMaterial = Resources.Load <Material>("Terrain");
}
HexGrid = new HexGrid <Hex>(
rows,
columns,
wrapping
);
for (
int index = 0, column = 0;
column < HexOffsetColumns;
column++
)
{
for (
int row = 0;
row < HexOffsetRows;
row++
)
{
HexGrid[column, row] =
CreateHexFromOffsetCoordinates(
column, row, index++,
hexOuterRadius,
HexGrid
);
}
}
HexMeshChunks = GetHexMeshChunks(
HexGrid,
hexOuterRadius
);
HexMeshColumnTransforms =
GetHexMeshChunkColumns(HexMeshChunks);
EditMode = editMode;
return(this);
}