public override void Update(GameBoard board)
{
if (board == null || board.Camps == null || board.Camps.Count == 0)
return;
if (Path != null)
{
//walk along the path
int row, col;
board.Grid.FindCell(m_position.X, m_position.Y, out row, out col);
int path_index= 0;
for (int i = 0; i < Path.Count; i++)
{
//we need to find closest - not exact match
if (Path[i].Row == row && Path[i].Col == col)
{
path_index = i;
break;
}
}
int next_path_index = Math.Min(path_index + 1, Path.Count - 1);
float vx, vy;
board.Grid.GetCellCenter(Path[next_path_index].Row, Path[next_path_index].Col, out vx, out vy);
vx -= m_position.X;
vy -= m_position.Y;
float distance = (float)Math.Sqrt(vx * vx + vy * vy);
if (distance > m_speed)
{
m_position.X = (float)(m_position.X + vx * m_speed / distance);
m_position.Y = (float)(m_position.Y + vy * m_speed / distance);
}
}
else
{
GameCamp camp = board.Camps[0];
float vx, vy;
board.Grid.GetCellCenter(camp.Position.Row, camp.Position.Col, out vx, out vy);
vx -= m_position.X;
vy -= m_position.Y;
float distance = (float)Math.Sqrt(vx * vx + vy * vy);
if (distance > m_speed)
{
m_position.X = (float)(m_position.X + vx * m_speed / distance);
m_position.Y = (float)(m_position.Y + vy * m_speed / distance);
}
}
}
public override void Update(GameBoard board)
{
//compute path
if (m_counter == 0)
{
GameCamp camp = board.Camps[0];
m_agent_position = board.Grid.GetCellCenter(Position);
m_path = board.GetPath(this.Position, camp.Position);
}
if (m_counter % m_launch_delay == 0)
{
GameAgent agent = m_agent.Clone() as GameAgent;
agent.Position = m_agent_position;
agent.Path = m_path;
board.Agents.Add(agent);
}
m_counter++;
}