public IEnumerator Explosion(float delay = 0.5f)
{
//create explosion at origin
CreateExplosion(new Point(( int )transform.position.x, ( int )transform.position.z));
var currentGrid = new Point(Mathf.Abs(( int )transform.position.x), Mathf.Abs(( int )transform.position.z));
//check for grid extrems or if the next block is indestructible
var canMoveUp = (currentGrid.y - 1) >= 0 && mapData.GetValue(currentGrid.x, currentGrid.y - 1) != Constants.INDESTRUCTABLE_WALL_ID;
var canMoveDown = (currentGrid.y + 1) < mapData.height && mapData.GetValue(currentGrid.x, currentGrid.y + 1) != Constants.INDESTRUCTABLE_WALL_ID;
var canMoveRight = (currentGrid.x + 1) < mapData.width && mapData.GetValue(currentGrid.x + 1, currentGrid.y) != Constants.INDESTRUCTABLE_WALL_ID;
var canMoveLeft = (currentGrid.x - 1) >= 0 && mapData.GetValue(currentGrid.x - 1, currentGrid.y) != Constants.INDESTRUCTABLE_WALL_ID;
//add grids to be used for explosin and update for next block
for (var i = 1; i <= range; i++)
{
//up
if (canMoveUp)
{
var point = new Point(( int )transform.position.x, ( int )transform.position.z + i);
var isCurrentBlockDestructibleWall = mapData.GetValue(point.x, point.AbsY) == Constants.DESTRUCTABLE_WALL_ID;
DestroyCurrentBlockAndUpdateMapData(isCurrentBlockDestructibleWall, point);
//check if next point is valid
canMoveUp = point.y + 1 <= 0 &&
!isCurrentBlockDestructibleWall &&
mapData.GetValue(point.x, point.AbsY - 1) != Constants.INDESTRUCTABLE_WALL_ID;
}
//down
if (canMoveDown)
{
var point = new Point(( int )transform.position.x, ( int )transform.position.z - i);
var isCurrentBlockDestructibleWall = mapData.GetValue(point.x, point.AbsY) == Constants.DESTRUCTABLE_WALL_ID;
DestroyCurrentBlockAndUpdateMapData(isCurrentBlockDestructibleWall, point);
//check if next point is valid
canMoveDown = point.AbsY + 1 < mapData.height &&
!isCurrentBlockDestructibleWall &&
mapData.GetValue(point.x, point.AbsY + 1) != Constants.INDESTRUCTABLE_WALL_ID;
}
//right
if (canMoveRight)
{
var point = new Point(( int )transform.position.x + i, ( int )transform.position.z);
var isCurrentBlockDestructibleWall = mapData.GetValue(point.x, point.AbsY) == Constants.DESTRUCTABLE_WALL_ID;
DestroyCurrentBlockAndUpdateMapData(isCurrentBlockDestructibleWall, point);
//check if next point is valid
canMoveRight = point.x + 1 < mapData.width &&
!isCurrentBlockDestructibleWall &&
mapData.GetValue(point.x + 1, point.AbsY) != Constants.INDESTRUCTABLE_WALL_ID;
}
//left
if (canMoveLeft)
{
var point = new Point(( int )transform.position.x - i, ( int )transform.position.z);
var isCurrentBlockDestructibleWall = mapData.GetValue(point.x, point.AbsY) == Constants.DESTRUCTABLE_WALL_ID;
DestroyCurrentBlockAndUpdateMapData(isCurrentBlockDestructibleWall, point);
//check if next point is valid
canMoveLeft = point.x - 1 >= 0 &&
!isCurrentBlockDestructibleWall &&
mapData.GetValue(point.x - 1, point.AbsY) != Constants.INDESTRUCTABLE_WALL_ID;
}
yield return(new WaitForSeconds(delay));
}
//post explosion cleanup
//explosion over, clear the grid
DestroyExplosionEffect();
parent.OnBombDetonateEnd();
Destroy(gameObject);
}
/// <summary>
/// check if the controller can move to next available point
/// </summary>
protected bool IsValidMove(Point point)
{
return((point.x >= 0 && point.x < mapData.width && point.y <= 0 && point.AbsY < mapData.height) &&
(mapData.GetValue(point.AbsX, point.AbsY) == 0 || (mapData.GetValue(point.AbsX, point.AbsY)) > Constants.INDESTRUCTABLE_WALL_ID));
}
