Mercurial > repos > IBDev-IBBoard.WarFoundry.API
diff API/Objects/Requirement/UnitRequiresNoMoreThanNOfUnitTypeRequirement.cs @ 343:acd390dba551
Re #27: Unit requirements
* First draft of "Unit requires no more than X" requirement
author | IBBoard <dev@ibboard.co.uk> |
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date | Wed, 06 Apr 2011 20:05:46 +0000 |
parents | |
children | c19e61262400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/API/Objects/Requirement/UnitRequiresNoMoreThanNOfUnitTypeRequirement.cs Wed Apr 06 20:05:46 2011 +0000 @@ -0,0 +1,58 @@ +// This file (UnitRequiresAtLeastNUnitsRequirement.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2011 IBBoard +// +// 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. +using System; +using System.Collections.Generic; +using IBBoard.WarFoundry.API.Objects; + +namespace IBBoard.WarFoundry.API.Objects.Requirement +{ + /// <summary> + /// A requirement where a UnitType can only be taken if there are no more than N units of one or more unit in an army. + /// </summary> + public class UnitRequiresNoMoreThanNOfUnitTypeRequirement : RequiresNoMoreThanNOfUnitTypeRequirement + { + private UnitType requirementOnType; + + public UnitRequiresNoMoreThanNOfUnitTypeRequirement(UnitType requirementOn) : base() + { + requirementOnType = requirementOn; + } + + /// <summary> + /// Checks whether the supplied WarFoundryObject can be added to the supplied army. + /// </summary> + /// <returns> + /// A <code>Validation</code> enum to show the result of the validation + /// </returns> + /// <param name='wfObject'> + /// The object that we want to add. This may be involved in the check, or it may not affect the evaluation of the requirement + /// </param> + /// <param name='toArmy'> + /// The army to add the object to. + /// </param> + public override Validation AllowsAdding(WarFoundryObject wfObject, Army toArmy) + { + return IsApplicable(wfObject, toArmy) ? base.AllowsAdding(wfObject, toArmy) : Validation.NotApplicable; + } + + + private bool IsApplicable(WarFoundryObject toObject, Army toArmy) + { + return IsApplicable(toArmy) || IsApplicable(toObject); + } + + + private bool IsApplicable(Army toArmy) + { + return toArmy.GetUnitTypeCount(requirementOnType) > 0; + } + + + private bool IsApplicable(WarFoundryObject toObject) + { + return requirementOnType.Equals(toObject) || (toObject is Unit && requirementOnType.Equals(((Unit)toObject).UnitType)); + } + } +} +