public PlacementGrid(int width, int height, bool[] closedSpots) {
// Make sure inital parameters make sense
if (width * height != closedSpots.Length) {
throw new UnityException ("Invalid size of array given width and height.");
}
this.rotation = 0;
this.width = width;
this.height = height;
// Create internal array
internalCells = new PGridCell[closedSpots.Length];
for (int i = 0; i < closedSpots.Length; i++) {
internalCells [i] = new PGridCell (i / width, i % width, closedSpots [i]);
}
}
// Rotate this grid left, recalculate internalCells and swap width and height
public void RotateLeft() {
PGridCell[] newInternalCells = new PGridCell[width * height];
for (int i = 0; i < internalCells.Length; i++) {
// new index is [numCols - 1 - col][row]
int newRow = (width - 1) - (i % width);
int newCol = i / width;
int index = height * newRow + newCol;
newInternalCells [index] = new PGridCell (newRow, newCol, internalCells[i].Closed);
}
internalCells = newInternalCells;
int newHeight = width;
width = height;
height = newHeight;
rotation = (rotation + 90) % 360;
}
/*
* This method returns if the obstacle can be placed at the given cell in the gameworld.
* Params - obstacleGrid: the PlacementGrid of the obstacle you are testing
* cell: the cell to test placement on
*/
bool CanPlaceObject(PlacementGrid obstacleGrid, PGridCell cell) {
// False if grid bounding box goes outside bounds of level
if (obstacleGrid.Height + cell.Row > levelPGrid.Height
|| obstacleGrid.Width + cell.Col > levelPGrid.Width)
return false;
// Go through obstacle's placement grid and make sure that each spot
// it needs is available, starting at cell
for (int r = 0; r < obstacleGrid.Height; r++) {
for (int c = 0; c < obstacleGrid.Width; c++) {
// If a cell is closed on the obstacle then it is occupied
// If a cell is closed on the main grid, it is occpupied or adjacent to an occupied spot
if (obstacleGrid.Closed(r, c)
&& levelPGrid.Closed(cell.Row + r, cell.Col + c)) {
return false;
}
}
}
return true;
}
