Mercurial > repos > IBDev-IBBoard.WarFoundry.API
annotate API/Factories/Requirement/UnitRequiresAtLeastNUnitsRequirementFactory.cs @ 427:3882b533d99d
Re #27: Define unit requirements
* Add ID to requirements so that it isn't just defined in factories
* Make factory use ID from requirement class to avoid duplication and possible mismatch
author | IBBoard <dev@ibboard.co.uk> |
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date | Sun, 30 Oct 2011 20:31:43 +0000 |
parents | 04f4c2fea356 |
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1 // This file (UnitRequiresAtLeastNUnitsRequirementFactory.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 |
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8 namespace IBBoard.WarFoundry.API.Factories.Requirement |
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9 { |
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10 /// <summary> |
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11 /// Factory for creating instances of <see cref="UnitRequiresAtLeastNUnitsRequirement" />. Data must be in the format: |
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12 /// |
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13 /// <code>unitID[:count][|unitID[:count][|...]]</code> |
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14 /// |
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15 /// e.g.: |
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16 /// |
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17 /// <code>Swordsmen:2|Bowmen</code> |
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18 /// |
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19 /// would generate a requirement to allow any number of the unit type after 1 unit with ID Bowmen or 2 units with ID Swordsmen were added. |
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20 /// </summary> |
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21 /// <exception cref='InvalidRequirementException'> |
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22 /// Is thrown when the invalid requirement exception. |
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23 /// </exception> |
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24 public class UnitRequiresAtLeastNUnitsRequirementFactory : IRequirementFactory |
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25 { |
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26 public UnitRequiresAtLeastNUnitsRequirementFactory() |
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27 { |
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28 //Do nothing special |
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29 } |
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30 |
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31 public string AppliesToID { |
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32 get { |
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33 return UnitRequiresAtLeastNUnitsRequirement.REQUIREMENT_ID; |
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34 } |
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35 } |
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36 |
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37 public IRequirement CreateRequirement<SOURCE_FILE_TYPE, ENTRY_TYPE>(UnitType type, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory) |
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38 { |
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39 UnitRequiresAtLeastNUnitsRequirement req = new UnitRequiresAtLeastNUnitsRequirement(type); |
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40 Race race = type.Race; |
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41 AddRequirements(req, race, data, raceFactory); |
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42 return req; |
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43 } |
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44 |
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45 private void AddRequirements<SOURCE_FILE_TYPE, ENTRY_TYPE>(UnitRequiresAtLeastNUnitsRequirement req, Race race, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory) |
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46 { |
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47 foreach (string requirement in data.Split('|')) |
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48 { |
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49 string[] requirementParts = requirement.Split(':'); |
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50 string unitID = requirementParts[0]; |
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51 UnitType unitType = raceFactory.GetUnitType(unitID, race); |
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52 |
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53 if (unitType == null) |
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54 { |
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55 throw new InvalidRequirementException(String.Format("Invalid unit type '{0}' for 'Requires at least N units' requirement", unitID)); |
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56 } |
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57 |
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58 if (requirementParts.Length == 2) |
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59 { |
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60 string amount = requirementParts[1]; |
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61 |
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62 try |
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63 { |
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64 req.AddUnitTypeRequirement(unitType, Int32.Parse(amount)); |
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65 } |
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66 catch (FormatException) |
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67 { |
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68 throw new InvalidRequirementException(String.Format("Invalid amount '{0}' for unit type '{1}' for 'Requires at least N units' requirement", amount, unitID)); |
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69 } |
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70 } |
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71 else |
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72 { |
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73 req.AddUnitTypeRequirement(unitType); |
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74 } |
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75 } |
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76 } |
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77 } |
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78 } |
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79 |