70 lines
2.0 KiB
C#
70 lines
2.0 KiB
C#
namespace MultiversalDiplomacy.Model;
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/// <summary>
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/// Represents a unit at a particular point in time.
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/// </summary>
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public class Unit
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{
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/// <summary>
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/// The previous iteration of a unit. This is null if the unit was just built.
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/// </summary>
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public Unit? Past { get; }
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/// <summary>
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/// The location on the map where the unit is.
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/// </summary>
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public Location Location { get; }
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/// <summary>
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/// The province where the unit is.
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/// </summary>
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public Province Province => this.Location.Province;
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/// <summary>
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/// The season in time when the unit is.
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/// </summary>
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public Season Season { get; }
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/// <summary>
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/// The allegiance of the unit.
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/// </summary>
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public Power Power { get; }
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/// <summary>
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/// The type of unit.
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/// </summary>
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public UnitType Type { get; }
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/// <summary>
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/// The unit's spatiotemporal location as a province-season tuple.
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/// </summary>
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public (Province province, Season season) Point => (this.Province, this.Season);
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private Unit(Unit? past, Location location, Season season, Power power, UnitType type)
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{
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this.Past = past;
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this.Location = location;
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this.Season = season;
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this.Power = power;
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this.Type = type;
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}
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public override string ToString()
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{
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return $"{this.Power.Name[0]} {this.Type.ToShort()} {(this.Province, this.Season).ToShort()}";
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}
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/// <summary>
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/// Create a new unit. No validation is performed; the adjudicator should only call this
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/// method after accepting a build order.
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/// </summary>
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public static Unit Build(Location location, Season season, Power power, UnitType type)
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=> new Unit(past: null, location, season, power, type);
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/// <summary>
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/// Advance this unit's timeline to a new location and season.
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/// </summary>
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public Unit Next(Location location, Season season)
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=> new Unit(past: this, location, season, this.Power, this.Type);
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}
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