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bring back AI search for new resource patches avoiding enemies

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This commit is contained in:
Matthias Mailänder
2015-09-04 14:30:12 +02:00
parent 91c7d7893e
commit 0df8b3ba39
3 changed files with 61 additions and 24 deletions
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39
OpenRA.Mods.Common/AI/HackyAI.cs
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@@ -13,6 +13,7 @@ using System.Collections;
using System.Collections.Generic;
using System.Linq;
using OpenRA.Mods.Common.Activities;
using OpenRA.Mods.Common.Pathfinder;
using OpenRA.Mods.Common.Traits;
using OpenRA.Primitives;
using OpenRA.Support;
@@ -105,6 +106,9 @@ namespace OpenRA.Mods.Common.AI
"Should match maximum adjacency of naval structures.")]
public readonly int CheckForWaterRadius = 8;
[Desc("Avoid enemy actors nearby when searching for a new resource patch. Should be somewhere near the max weapon range.")]
public readonly WDist HarvesterEnemyAvoidanceRadius = WDist.FromCells(8);
[Desc("Production queues AI uses for producing units.")]
public readonly string[] UnitQueues = { "Vehicle", "Infantry", "Plane", "Ship", "Aircraft" };
@@ -171,6 +175,11 @@ namespace OpenRA.Mods.Common.AI
public Player Player { get; private set; }
readonly DomainIndex domainIndex;
readonly ResourceLayer resLayer;
readonly ResourceClaimLayer territory;
readonly IPathFinder pathfinder;
readonly Func<Actor, bool> isEnemyUnit;
Dictionary<SupportPowerInstance, int> waitingPowers = new Dictionary<SupportPowerInstance, int>();
Dictionary<string, SupportPowerDecision> powerDecisions = new Dictionary<string, SupportPowerDecision>();
@@ -212,6 +221,12 @@ namespace OpenRA.Mods.Common.AI
{
Info = info;
World = init.World;
domainIndex = World.WorldActor.Trait<DomainIndex>();
resLayer = World.WorldActor.Trait<ResourceLayer>();
territory = World.WorldActor.TraitOrDefault<ResourceClaimLayer>();
pathfinder = World.WorldActor.Trait<IPathFinder>();
isEnemyUnit = unit =>
Player.Stances[unit.Owner] == Stance.Enemy && !unit.HasTrait<Husk>() && unit.HasTrait<ITargetable>();
@@ -634,6 +649,26 @@ namespace OpenRA.Mods.Common.AI
FindAndDeployBackupMcv(self);
}
CPos FindNextResource(Actor self)
{
var harvInfo = self.Info.Traits.Get<HarvesterInfo>();
var mobileInfo = self.Info.Traits.Get<MobileInfo>();
var passable = (uint)mobileInfo.GetMovementClass(World.TileSet);
var path = pathfinder.FindPath(
PathSearch.Search(World, mobileInfo, self, true,
loc => domainIndex.IsPassable(self.Location, loc, passable) && self.CanHarvestAt(loc, resLayer, harvInfo, territory))
.WithCustomCost(loc => World.FindActorsInCircle(World.Map.CenterOfCell(loc), Info.HarvesterEnemyAvoidanceRadius)
.Where(u => !u.IsDead && self.Owner.Stances[u.Owner] == Stance.Enemy)
.Sum(u => Math.Max(WDist.Zero.Length, Info.HarvesterEnemyAvoidanceRadius.Length - (World.Map.CenterOfCell(loc) - u.CenterPosition).Length)))
.FromPoint(self.Location));
if (path.Count == 0)
return CPos.Zero;
return path[0];
}
void GiveOrdersToIdleHarvesters()
{
// Find idle harvesters and give them orders:
@@ -657,7 +692,9 @@ namespace OpenRA.Mods.Common.AI
continue;
// Tell the idle harvester to quit slacking:
QueueOrder(new Order("Harvest", a, false));
var newSafeResourcePatch = FindNextResource(a);
BotDebug("AI: Harvester {0} is idle. Ordering to {1} in search for new resources.".F(a, newSafeResourcePatch));
QueueOrder(new Order("Harvest", a, false) { TargetLocation = newSafeResourcePatch });
}
}