Mercurial > repos > IBBoard.WarFoundry.API

annotate API/Objects/Requirement/UnitRequiresNUnitsForMUnitsRequirement.cs @ 480:e0641e0eb86c

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Re #410: "N units per M models in parent" requirement * Move context to a sub-folder/namespace to reduce clutter * Add simple "parent unit" context
author IBBoard <dev@ibboard.co.uk>
date Wed, 23 May 2012 21:00:33 +0100
parents f48c49b53738
children 248df19652f9
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1 // This file (UnitRequiresAtLeastNUnitsRequirement.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2011 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed and distributed, without warranty, under the GNU Affero GPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.
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4 using System;
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5 using System.Collections.Generic;
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6 using IBBoard.WarFoundry.API.Objects;
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7 using IBBoard.WarFoundry.API.Objects.Requirement.Context;
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8
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9 namespace IBBoard.WarFoundry.API.Objects.Requirement
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10 {
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11 /// <summary>
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12 /// A requirement where N of a UnitType can only be taken if there are M of a unit type in the army.
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13 /// </summary>
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14 public class UnitRequiresNUnitsForMUnitsRequirement : RequiresNUnitsForMObjectsRequirement<UnitType>
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15 {
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16 //Note: We're sticking with the old requirement name to prevent breakage
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17 public static readonly string REQUIREMENT_ID = "RequiresNUnitsForMUnits";
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18
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19 public UnitRequiresNUnitsForMUnitsRequirement(UnitType requirementOn, params UnitType[] requiredUnitTypes) : base(requirementOn, requiredUnitTypes)
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20 {
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21 //Do nothing
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22 }
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23
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24 protected override bool IsApplicable(IWarFoundryObject toObject, Army toArmy, AddingContext context)
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25 {
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26 return IsApplicable(toObject, context) || IsApplicableForRequiredType(toObject, toArmy);
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27 }
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29 protected override bool IsApplicable(IWarFoundryObject toObject, AddingContext context)
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30 {
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31 return AllowedObject.Equals(toObject) || (toObject is Unit && AllowedObject.Equals(((Unit)toObject).UnitType));
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32 }
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33
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34 private bool IsApplicableForRequiredType(IWarFoundryObject toObject, Army toArmy)
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35 {
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36 bool isApplicable = false;
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37 UnitType addedType = toObject as UnitType;
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38
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39 if (addedType == null)
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40 {
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41 addedType = (toObject is Unit) ? ((Unit)toObject).UnitType : null;
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42 }
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43
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44 if (addedType != null && toArmy.GetUnitTypeCount(AllowedObject) > 0)
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45 {
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46 foreach (UnitCountRequirementData limit in ConstraintTypes)
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47 {
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48 if (Arrays.Contains(limit.UnitTypes, addedType))
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49 {
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50 isApplicable = true;
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51 break;
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52 }
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53 }
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54 }
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55
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56 return isApplicable;
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57 }
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58
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59 public override string RequirementID
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60 {
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61 get
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62 {
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63 return REQUIREMENT_ID;
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64 }
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65 }
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66
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67 protected override int GetObjectCountFromArmy(Army toArmy)
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68 {
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69 return GetObjectCountFromArmy(toArmy, AllowedObject);
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70 }
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71
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72 protected override int GetObjectCountFromArmy(Army toArmy, UnitType unitType)
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73 {
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74 return toArmy.GetUnitTypeCount(unitType);
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75 }
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76
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77 protected override int GetAllowedObjectCount(Army army)
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78 {
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79 return army.GetUnitTypeCount(AllowedObject);
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80 }
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