void BuildPath(int clickedCellIndex)
{
DestroyLOSMarkers();
if (isSelectingStart)
{
// Selects start cell
cellStartIndex = clickedCellIndex;
grid.CellToggle(cellStartIndex, true, Color.yellow);
}
else
{
// Clicked on the end cell, then show the path
// First clear color of start cell
grid.CellToggle(cellStartIndex, false, Color.white);
// Get Path
List <int> path = grid.FindPath(cellStartIndex, clickedCellIndex, cellGroupMask: CELLS_ALL_NAVIGATABLE);
// Color the path
if (path != null)
{
for (int k = 0; k < path.Count; k++)
{
grid.CellFadeOut(path [k], Color.green, 1f);
}
}
}
isSelectingStart = !isSelectingStart;
}
// Highlight cells sequentially on each frame
IEnumerator HighlightCell()
{
currentCol++;
// run across the grid row by row
if (currentCol >= grid.columnCount)
{
currentCol = 0;
currentRow++;
if (currentRow >= grid.rowCount)
{
currentRow = 0;
}
}
// get cell at current grid position and color it with fade out option
Cell cell = grid.CellGetAtPosition(currentCol, currentRow);
if (cell != null)
{
int cellIndex = grid.CellGetIndex(cell);
float duration = Random.value * 2.5f + 0.5f;
Color color = new Color(Random.value, Random.value, Random.value);
grid.CellFadeOut(cellIndex, color, duration);
}
// trigger next iteration after this frame
yield return(new WaitForEndOfFrame());
StartCoroutine(HighlightCell());
}
void TriggerRandomCell(Color color)
{
// We get a random vector from -0.5..0.5 on both X and Y (z is ignored)
Vector2 localPosition = Random.onUnitSphere * 0.5f;
Cell cell = grid.CellGetAtPosition(localPosition);
if (cell != null)
{
int cellIndex = grid.CellGetIndex(cell);
float duration = Random.value * 2.5f + 0.5f;
grid.CellFadeOut(cellIndex, color, duration);
}
}