Mercurial > repos > IBBoard.WarFoundry.API

annotate API/Objects/UnitEquipmentRatioSelection.cs @ 429:7179c585d31d

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Re #356: Stack overflow with some equipment limits * Add RawNumberTaken to be used in some locations to avoid indirect recursion * Use new RawNumberTaken within Unit equipment counting method Overflow fixed, but results not correct
author IBBoard <dev@ibboard.co.uk>
date Sun, 06 Nov 2011 20:21:57 +0000
parents 3c4a6403a88c
children c8002429ab45
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1 // This file (UnitEquipmentRatioSelection.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2009 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
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5 using System;
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6 using IBBoard.CustomMath;
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7 using IBBoard.Limits;
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8 using IBBoard.WarFoundry.API.Util;
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9
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10 namespace IBBoard.WarFoundry.API.Objects
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11 {
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12 /// <summary>
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13 /// An object to hold the selection of a unit's equipment where the selection was made as a percentage or ratio
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14 /// of the total size of the unit
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15 /// </summary>
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16 public class UnitEquipmentRatioSelection : AbstractUnitEquipmentItemSelection
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17 {
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18 public UnitEquipmentRatioSelection(Unit unit, UnitEquipmentItem item, double amount) : base(unit, item, amount)
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19 {
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20 }
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21
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22 public UnitEquipmentRatioSelection(Unit unit, UnitEquipmentItem item) : base(unit, item, ((IPercentageLimit)item.MinLimit).Percentage)
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23 {
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24 }
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25
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26 public override int NumberTaken
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27 {
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28 get
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29 {
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30 return CalculateNumberTaken(EquipmentForUnit, EquipmentItem, AmountTaken);
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31 }
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32 }
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33
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34 public override int RawNumberTaken
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35 {
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36 get
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37 {
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38 return CalculateRawNumberTaken(EquipmentForUnit, EquipmentItem, AmountTaken);
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39 }
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40 }
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41
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42 internal static int CalculateNumberTaken(Unit unit, UnitEquipmentItem item, double ratioTaken)
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43 {
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44 int wholeNumberTaken = CalculateRawNumberTaken(unit, item, ratioTaken);
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45 int maxTaken = Int32.MaxValue;
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46 int minTaken = 0;
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47
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48 if (wholeNumberTaken > 0)
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49 {
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50 maxTaken = UnitEquipmentUtil.GetMaxEquipmentCount(unit, item);
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51 }
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52
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53 minTaken = UnitEquipmentUtil.GetMinEquipmentCount(unit, item);
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54 return Math.Min(Math.Max(wholeNumberTaken, minTaken), maxTaken);
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55 }
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56
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57 private static int CalculateRawNumberTaken (Unit unit, UnitEquipmentItem item, double ratioTaken)
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58 {
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59 double exactNumberTaken = (ratioTaken / 100) * unit.Size;
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60 return (int)IBBMath.Round(exactNumberTaken, item.RoundNumberUp);
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61 }
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62 }
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63 }