Resource split

Entelect Challenge 2022 Technical Support
1

Hi

How does the engine prioritise whose action was first in the below if everyone sends troops to the same node?

public void DistributeHarvestingActionSlots(IList bots)
{
// update resource nodes available units and re-distribute available slots if the node was over-allocated

        // get all the bot actions that were just received
        var newActions = bots.SelectMany(bot => bot.GetNewActions());
        var resourceActionsGroupedByNode = from action in newActions 
            where IsResourceAction(action.ActionType)
            group action by action.TargetNodeId into g
            select new { NodeId = g.Key, Actions = g.ToList() };

        foreach (var group in resourceActionsGroupedByNode)
        {
            var node = worldStateService.GetResourceNode(group.NodeId);
            var actions = group.Actions;
            DistributeNodeSpaceAmongActions(node, actions);
        }
    }
2

Say there is 1000 available spaces at the node, and each player (4 in total) each sends 1000 units. Once the engine sees that the node is over-allocated (i.e. there is 4000 nodes instead of 1000), it redistributes it according to each player’s number of units:

new units = (units sent / total units at node) * space available = (1000 / 4000) * 1000 = 250

Only eligible units are accounted for, so if one player decides to send 5000 units only 1000 is used in the formula above.

3

Thanks Kobus, I’ve been seeing this message come up so it could be the action getting rejected instead of split.

Logger.LogInfo(“ResourceNode Slot Distribution”, $“Not enough space at node id {node.Id}, removing action for bot id {action.Bot.BotId}”);

Might be an engine bug that the Entelect team needs to check.

4

I don’t quite understand the syntax here but it doesn’t seem like the original action is getting removed when sending troops home, just a new action getting added into the list, I could be wrong.

else
{
SendUnneededUnitsHome(action, newUnits);
action.NumberOfUnits = newUnits;
remainingValidActions.Add(action);
}

5

It is possible that you are trying to send more units than the node allows.

For example.
Maybe you have 100 wood left on a node.

You run a requirement check, you need 100 wood for strategy A, So you send it.
Then further down you need 50 wood for strategy B.

Now Strategy A would have emptied the node.
Strategy B would trigger:

Logger.LogInfo(“ResourceNode Slot Distribution”, $“Not enough space at node id {node.Id}, removing action for bot id {action.Bot.BotId}”);

The same can happen if you send 1 unit to a node and its full.

At least as far as I know.

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