81 lines
2.1 KiB
C#
81 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using OpenRa.Game.GameRules;
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using IjwFramework.Types;
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using IjwFramework.Collections;
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using OpenRa.Game.Graphics;
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namespace OpenRa.Game
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{
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class BuildingInfluenceMap
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{
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bool[,] blocked = new bool[128, 128];
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Actor[,] influence = new Actor[128, 128];
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static readonly Pair<Actor, float> NoClaim = Pair.New((Actor)null, float.MaxValue);
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public BuildingInfluenceMap()
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{
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for (int j = 0; j < 128; j++)
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for (int i = 0; i < 128; i++)
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influence[i, j] = null;
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Game.world.ActorAdded +=
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a => { if (a.traits.Contains<Traits.Building>()) AddInfluence(a, a.traits.Get<Traits.Building>()); };
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Game.world.ActorRemoved +=
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a => { if (a.traits.Contains<Traits.Building>()) RemoveInfluence(a, a.traits.Get<Traits.Building>()); };
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}
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void AddInfluence(Actor a, Traits.Building building)
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{
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foreach (var u in Footprint.UnpathableTiles(building.unitInfo, a.Location))
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if (IsValid(u))
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blocked[u.X, u.Y] = true;
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foreach (var u in Footprint.Tiles(building.unitInfo, a.Location, false))
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if (IsValid(u))
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influence[u.X, u.Y] = a;
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}
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void RemoveInfluence(Actor a, Traits.Building building)
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{
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foreach (var u in Footprint.UnpathableTiles(building.unitInfo, a.Location))
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if (IsValid(u))
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blocked[u.X, u.Y] = false;
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foreach (var u in Footprint.Tiles(building.unitInfo, a.Location, false))
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if (IsValid(u))
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influence[u.X, u.Y] = null;
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}
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bool IsValid(int2 t)
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{
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return !(t.X < 0 || t.Y < 0 || t.X >= 128 || t.Y >= 128);
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}
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public Actor GetBuildingAt(int2 cell)
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{
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if (!IsValid(cell)) return null;
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return influence[cell.X, cell.Y];
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}
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public Actor GetNearestBuilding(int2 cell)
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{
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if (!IsValid(cell)) return null;
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return influence[cell.X, cell.Y];
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}
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public int GetDistanceToBuilding(int2 cell)
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{
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if (!IsValid(cell)) return int.MaxValue;
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return influence[cell.X, cell.Y] == null ? int.MaxValue : 0;
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}
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public bool CanMoveHere(int2 cell)
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{
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return IsValid(cell) && !blocked[cell.X, cell.Y];
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}
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}
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}
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