39 lines
1.3 KiB
C#
39 lines
1.3 KiB
C#
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using Theriapolis.Core.Data;
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namespace Theriapolis.Core.Items;
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/// <summary>
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/// One stack of items in an <see cref="Inventory"/>. Holds a reference to the
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/// immutable <see cref="ItemDef"/> plus per-instance state: how many in the
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/// stack, current condition, and (optionally) the slot the item is equipped
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/// into.
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///
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/// Phase 5 ships condition as a no-op (always 100); it's reserved for damage,
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/// repairs, and weapon breaking that arrive in Phase 5.5+.
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/// </summary>
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public sealed class ItemInstance
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{
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public ItemDef Def { get; }
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public int Qty { get; set; }
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/// <summary>Condition, 0..100. 100 = pristine. Phase 5 always uses 100.</summary>
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public int Condition { get; set; } = 100;
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/// <summary>Null while in the inventory bag; set when the item is equipped.</summary>
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public EquipSlot? EquippedAt { get; set; }
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public ItemInstance(ItemDef def, int qty = 1)
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{
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Def = def ?? throw new ArgumentNullException(nameof(def));
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if (qty < 1) throw new ArgumentOutOfRangeException(nameof(qty), "qty must be ≥ 1");
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Qty = qty;
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}
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public float TotalWeightLb => Def.WeightLb * Qty;
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public override string ToString() =>
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EquippedAt is null
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? $"{Def.Name}{(Qty > 1 ? $" ×{Qty}" : "")}"
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: $"{Def.Name} (equipped: {EquippedAt})";
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}
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