private void btnFindRoute_Click(object sender, EventArgs e)
{
RouteFinder routeFinder = new RouteFinder(0, 0, width - 1, height - 1, chbCanMoveDiagonally.Checked);
int countInitialLocations = 0;
int countGoalLocations = 0;
for (int i = 0; i < pnlMAP.Controls.Count; i++)
{
int x = i % width;
int y = i / width;
Location loc = new Location(x, y);
switch ((string)pnlMAP.Controls[i].Tag)
{
case initialTag:
countInitialLocations++;
if (countInitialLocations > 1)
{
MessageBox.Show("There cannot be more than one initial location.", this.Text);
return;
}
routeFinder.InitialLocation = loc;
break;
case obstacleTag:
routeFinder.AddObstacle(loc);
break;
case goalTag:
countGoalLocations++;
routeFinder.AddGoal(loc);
break;
case routeTag:
MakeEmpty(pnlMAP.Controls[i] as Button);
break;
}
}
if (countGoalLocations == 0)
{
MessageBox.Show("There must be atleast one goal location.", this.Text);
}
DisplayRoute(routeFinder.CalculateRoute());
}