annotate API/Objects/Requirement/RequiresAtLeastNUnitsRequirement.cs @ 479:f48c49b53738

Re #410: "N units per M models in parent" requirement * Add a "context" object that will hold the parent unit (or possibly other stuff) * Update all method signatures and calls
author IBBoard <dev@ibboard.co.uk>
date Wed, 23 May 2012 20:56:27 +0100
parents 7b9ff7b1df24
children e0641e0eb86c
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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 System.Text;
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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 a WarFoundryObject requires at least N units of any of the specified unit types before any number of that object can be taken in an army.
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13 ///
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14 /// The definition for how this requirement is built from a data file is defined in the <see cref="UnitRequiresAtLeastNUnitsRequirementFactory"/> class.
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15 /// </summary>
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16 public abstract class RequiresAtLeastNUnitsRequirement<OBJECT_TYPE> : AbstractUnitRequirement<OBJECT_TYPE> where OBJECT_TYPE : IWarFoundryObject
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17 {
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18 public static readonly string REQUIREMENT_ID = "RequiresAtLeastNUnits";
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19
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20 public RequiresAtLeastNUnitsRequirement(OBJECT_TYPE requirementOn, params UnitType[] requiredUnitTypes) : base(requirementOn, requiredUnitTypes)
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21 {
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22 //Do nothing
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23 }
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24
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25 public override string RequirementID
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26 {
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27 get
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28 {
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29 return REQUIREMENT_ID;
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30 }
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31 }
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32
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33 protected override bool IsApplicable(Army toArmy, AddingContext context)
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34 {
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35 return false;
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36 }
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37
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38 protected override bool IsApplicable(IWarFoundryObject toObject, AddingContext context)
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39 {
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40 bool isApplicable = false;
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41 UnitType unitType = GetUnitTypeFromObject(toObject);
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42
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43 if (unitType != null)
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44 {
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45 isApplicable = IsApplicable(unitType);
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46 }
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47
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48 return isApplicable;
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49 }
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50
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51 private bool IsApplicable(UnitType unitType)
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52 {
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53 bool isApplicable = false;
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54 foreach (UnitCountRequirementData requirement in ConstraintTypes)
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55 {
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56 if (requirement.UnitType.Equals(unitType))
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57 {
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58 isApplicable = true;
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59 break;
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60 }
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61 }
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62 return isApplicable;
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63 }
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64
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65 protected override Validation CheckAllowsAdding(IWarFoundryObject wfObject, Army toArmy, AddingContext context)
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66 {
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67 Validation isValid = Validation.Passed;
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68
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69 foreach (UnitCountRequirementData requirement in ConstraintTypes)
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70 {
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71 if (GetUnitTypesCount(toArmy, requirement.UnitTypes, wfObject) < requirement.Count)
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72 {
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73 isValid = Validation.Failed;
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74 break;
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75 }
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76 }
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77
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78 return isValid;
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79 }
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80
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81 /// <summary>
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82 /// Adds a requirement for there to be at least minCount of a given UnitType, allowing any number of of this UnitType.
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83 /// </summary>
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84 /// <param name='unitType'>
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85 /// The unit type to require.
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86 /// </param>
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87 /// <param name='minCount'>
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88 /// The minimum number of that type that must exist.
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89 /// </param>
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90 public void AddUnitTypeRequirement(UnitType unitType, int minCount)
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91 {
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92 AddUnitTypeRequirement(minCount, unitType);
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93 }
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94
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95 /// <summary>
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96 /// Adds a requirement for there to be one or more of a given UnitType, allowing any number of of this UnitType.
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97 /// </summary>
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98 /// <param name='unitType'>
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99 /// The unit type to require.
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100 /// </param>
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101 public override void AddUnitTypeRequirement(UnitType unitType)
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102 {
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103 AddUnitTypeRequirement(unitType, 1);
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104 }
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105
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106 /// <summary>
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107 /// Adds a requirement for there to be one or more of the given UnitTypes, allowing any number of of this UnitType. If multiple unit types
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108 /// are supplied here then they are treated as alternatives (so "unitType1, unitType2" requires one of either type).
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109 /// </summary>
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110 /// <param name='unitType'>
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111 /// The unit type or types to require.
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112 /// </param>
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113 public void AddUnitTypeRequirement(params UnitType[] unitTypes)
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114 {
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115 AddUnitTypeRequirement(1, unitTypes);
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116 }
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117
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118 /// <summary>
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119 /// Adds a requirement for there to be minCount or more of the given UnitTypes, allowing any number of of this UnitType. If multiple unit types
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120 /// are supplied here then they are treated as alternatives (so "unitType1, unitType2" requires one of either type).
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121 /// </summary>
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122 /// <param name="minCount">
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123 /// The number of units to be allowed for each 1 of unitType
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124 /// </param>
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125 /// <param name='unitType'>
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126 /// The unit type or types to require.
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127 /// </param>
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128 public void AddUnitTypeRequirement(int minCount, params UnitType[] unitTypes)
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129 {
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130 ConstraintTypes.Add(new UnitCountRequirementData(unitTypes, minCount));
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131 }
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132
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133
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134 /// <summary>
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135 /// Checks whether the supplied army is currently valid according to this requirement.
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136 /// </summary>
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137 /// <returns>
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138 /// A <code>Validation</code> enum to show the result of the validation
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139 /// </returns>
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140 /// <param name='toValidate'>
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141 /// The army to validate
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142 /// </param>
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143 public override Validation ValidatesArmy(Army toValidate)
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144 {
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145 Validation isValid = Validation.NotApplicable;
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146 int allowedTypeCount = GetObjectCountFromArmy(toValidate, AllowedObject);
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147
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148 if (allowedTypeCount > 0)
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149 {
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150 isValid = Validation.Passed;
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151
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152 foreach (UnitCountRequirementData requirement in ConstraintTypes)
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153 {
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154 if (GetUnitTypesCount(toValidate, requirement.UnitTypes) < requirement.Count)
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155 {
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156 isValid = Validation.Failed;
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157 break;
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158 }
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159 }
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160 }
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161 else
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162 {
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163 isValid = Validation.NotApplicable;
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164 }
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165
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166 return isValid;
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167 }
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168
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169 protected override string GetFailedRequirementsString(Army army)
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170 {
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171 return String.Join("; ", GetFailedRequirements(army).ToArray());
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172 }
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173
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174 private List<string> GetFailedRequirements(Army army)
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175 {
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176 List<string> failures = new List<string>();
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177
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178 foreach (UnitCountRequirementData requirement in ConstraintTypes)
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179 {
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180 int unitCount = GetUnitTypesCount(army, requirement.UnitTypes);
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181
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182 if (unitCount < requirement.Count)
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183 {
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184 failures.Add(requirement.Count + " × " + GetUnitTypeList(requirement) + " (have " + unitCount + ")");
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185 }
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186 }
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187
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188 return failures;
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189 }
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190
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191 protected override string GetFailedAddingRequirementsString(IWarFoundryObject toAdd, Army toArmy)
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192 {
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193 return String.Join("; ", GetFailedAddingRequirements(toAdd, toArmy).ToArray());
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194 }
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195
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196 private List<string> GetFailedAddingRequirements(IWarFoundryObject toAdd, Army army)
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197 {
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198 List<string> failures = new List<string>();
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199
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200 foreach (UnitCountRequirementData requirement in ConstraintTypes)
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201 {
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202 int unitCount = GetUnitTypesCount(army, requirement.UnitTypes, toAdd);
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203
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204 if (unitCount < requirement.Count)
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205 {
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206 failures.Add(requirement.Count + " × " + GetUnitTypeList(requirement) + " (would have " + unitCount + ")");
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207 }
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208 }
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209
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210 return failures;
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211 }
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212
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213 protected override int GetObjectCountFromArmy(Army toArmy)
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214 {
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215 return 0;
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216 }
337
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217 }
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218 }
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219