// Update is called once per frame
void Update()
{
if (m_status == TraderStatus.Idle)
{
M_FindTrade();
}
else if (m_status == TraderStatus.MovingToSupplier)
{
if (m_unit.m_destinationReached)
{
m_supplyCityObj.GetComponent <City>().m_resourceStockpiles[m_resource].M_TransferAllResourcesTo(ref m_stockpile);
m_unit.M_SetDestination(m_demandCityObj.transform.position);
m_status = TraderStatus.MovingToDemander;
}
}
else if (m_status == TraderStatus.MovingToDemander)
{
if (m_unit.m_destinationReached)
{
ResourceStockpile targetStockpile = m_demandCityObj.GetComponent <City>().m_resourceStockpiles[m_resource]; // I really wish I had pointers to make this explicit...
m_stockpile.M_TransferAllResourcesTo(ref targetStockpile);
m_supplyCityObj.GetComponent <City>().m_resourceStockpiles[m_resource].M_TransferAllResourcesTo(ref m_stockpile);
m_status = TraderStatus.Idle;
}
}
}
// Calculates a trade route
private void M_FindTrade()
{
float value = 0;
foreach (GameObject demandCityObj in m_world.m_cities)
{
City demandCity = demandCityObj.GetComponent <City>();
// Iterate for demand
foreach (KeyValuePair <Resource, float> kvp in demandCity.m_resourceDemands)
{
Resource resource = kvp.Key;
float demand = kvp.Value;
foreach (GameObject supplyCityObj in m_world.m_cities)
{
City supplyCity = supplyCityObj.GetComponent <City>();
if (supplyCityObj.GetInstanceID() == demandCityObj.GetInstanceID())
{
continue;
}
//foreach(KeyValuePair<Resource, ResourceStockpile> supplyStockpiles in supplyCity.m_resourceStockpiles)
//{
float supply = supplyCity.m_resourceStockpiles[kvp.Key].m_amount;
float distanceToSupply = (transform.position - supplyCity.transform.position).magnitude;
float distanceSupplyToDemand = (supplyCity.transform.position - demandCity.transform.position).magnitude;
float totalDistance = distanceToSupply + distanceSupplyToDemand;
float newValue = M_CalculateTradeValue(demand, supply, totalDistance);
if (newValue > m_demandThreshold)
{
if (newValue > value)
{
value = newValue;
m_resource = resource;
m_supplyCityObj = supplyCityObj;
m_demandCityObj = demandCityObj;
// Start moving to supply city
m_status = TraderStatus.MovingToSupplier;
m_unit.M_SetDestination(m_supplyCityObj.transform.position);
}
}
}
}
}
}
