micromissiles-unity/Assets/Scripts/Assignment/RoundRobinAssignment.cs

39 lines
1.4 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
// The round-robin assignment class assigns missiles to the targets in a
// round-robin order.
public class RoundRobinAssignment : IAssignment {
// Previous target index that was assigned.
private int prevTargetIndex = -1;
// Assign a target to each missile that has not been assigned a target yet.
public IEnumerable<IAssignment.AssignmentItem> Assign(List<Agent> missiles, List<Agent> targets) {
List<IAssignment.AssignmentItem> assignments = new List<IAssignment.AssignmentItem>();
List<int> assignableMissileIndices = IAssignment.GetAssignableMissileIndices(missiles);
if (assignableMissileIndices.Count == 0) {
return assignments;
}
List<int> activeThreatIndices = IAssignment.GetActiveThreatIndices(targets);
if (activeThreatIndices.Count == 0) {
return assignments;
}
foreach (int missileIndex in assignableMissileIndices) {
int nextActiveTargetIndex = activeThreatIndices.FindIndex(index => index > prevTargetIndex);
if (nextActiveTargetIndex == -1) {
nextActiveTargetIndex = 0;
}
int nextTargetIndex = activeThreatIndices[nextActiveTargetIndex];
assignments.Add(new IAssignment.AssignmentItem(missileIndex, nextTargetIndex));
prevTargetIndex = nextTargetIndex;
}
return assignments;
}
}