Mercurial > repos > IBBoard.WarFoundry.API

annotate API/Factories/Requirement/UnitRequiresNUnitsForMUnitsRequirementFactory.cs @ 455:afc6410e4efc

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Re #379: Fix validation of requirements to check for unit * Move to "Unit" requirements, since we assume things depend on units * Rename some classes to more meaningful names from unit-based change * Rename "requires N for M" requirement as we can make it more flexible
author IBBoard <dev@ibboard.co.uk>
date Wed, 22 Feb 2012 20:45:39 +0000
parents 4fbb7f205f7e
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1 // This file (UnitRequiresNUnitsForMUnitsRequirementFactory.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 IBBoard.WarFoundry.API.Objects;
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6 using IBBoard.WarFoundry.API.Objects.Requirement;
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7 using System.Collections.Generic;
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8
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9 namespace IBBoard.WarFoundry.API.Factories.Requirement
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10 {
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11 public class UnitRequiresNUnitsForMUnitsRequirementFactory : IRequirementFactory
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12 {
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13 public UnitRequiresNUnitsForMUnitsRequirementFactory()
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14 {
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15 //Do nothing special
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16 }
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17
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18 public string AppliesToID
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19 {
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20 get
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21 {
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22 return UnitRequiresNUnitsForMUnitsRequirement.REQUIREMENT_ID;
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23 }
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24 }
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25
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26 public IRequirement CreateRequirement<SOURCE_FILE_TYPE, ENTRY_TYPE>(UnitType type, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory)
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27 {
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28 UnitRequiresNUnitsForMUnitsRequirement req = new UnitRequiresNUnitsForMUnitsRequirement(type);
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29 Race race = type.Race;
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30 AddRequirements(req, race, data, raceFactory);
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31 return req;
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32 }
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33
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34 private void AddRequirements<SOURCE_FILE_TYPE, ENTRY_TYPE>(UnitRequiresNUnitsForMUnitsRequirement req, Race race, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory)
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35 {
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36 foreach (string requirement in data.Split('|'))
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37 {
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38 string[] requirementParts = requirement.Split(':');
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39 string unitIDs = requirementParts[0];
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40 UnitType[] unitTypes = GetUnitTypes(unitIDs, race, raceFactory);
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41
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42 if (requirementParts.Length == 2)
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43 {
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44 string[] amounts = requirementParts[1].Split(';');
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45
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46 int minCount;
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47 int allowedAmounts;
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48
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49 if (amounts.Length == 1)
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50 {
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51 minCount = 1;
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52 allowedAmounts = ParseAllowedAmount(amounts[0], unitIDs);
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53 }
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54 else
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55 {
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56 minCount = ParseMinCount(amounts[0], unitIDs);
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57 allowedAmounts = ParseAllowedAmount(amounts[1], unitIDs);
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58 }
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59
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60 req.AddUnitTypeRequirement(minCount, allowedAmounts, unitTypes);
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61 }
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62 else
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63 {
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64 req.AddUnitTypeRequirement(unitTypes);
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65 }
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66 }
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67 }
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68
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69 private UnitType[] GetUnitTypes<SOURCE_FILE_TYPE, ENTRY_TYPE>(string data, Race race, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory)
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70 {
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71 List<UnitType> unitTypes = new List<UnitType>();
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72
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73 foreach (string unitID in data.Split(';'))
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74 {
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75 UnitType unitType = raceFactory.GetUnitType(unitID, race);
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76
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77 if (unitType == null)
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78 {
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79 throw new InvalidRequirementException(String.Format("Invalid unit type '{0}' for 'Requires N units for M units' requirement", unitID));
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80 }
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81
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82 unitTypes.Add(unitType);
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83 }
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84
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85 return unitTypes.ToArray();
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86 }
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87
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88 private int ParseMinCount(string minCount, string unitID)
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89 {
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90 try
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91 {
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92 return Int32.Parse(minCount);
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93 }
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94 catch (FormatException)
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95 {
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96 throw new InvalidRequirementException(String.Format("Invalid minimum amount '{0}' for unit types '{1}' for 'Requires N units for M units' requirement", minCount, unitID));
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97 }
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98 }
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99
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100 private int ParseAllowedAmount(string allowedAmount, string unitID)
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101 {
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102 try
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103 {
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104 return Int32.Parse(allowedAmount);
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105 }
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106 catch (FormatException)
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107 {
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108 throw new InvalidRequirementException(String.Format("Invalid allowed amount '{0}' for unit types '{1}' for 'Requires N units for M units' requirement", allowedAmount, unitID));
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109 }
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110 }
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111 }
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112 }
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113