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41 lines
1.2 KiB
41 lines
1.2 KiB
3 years ago
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using System.Collections.Generic;
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namespace ET
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{
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[FriendClass(typeof(AOIEntity))]
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public static class AOIHelper
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{
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public static long CreateCellId(int x, int y)
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{
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return (long) ((ulong) x << 32) | (uint) y;
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}
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public static void CalcEnterAndLeaveCell(AOIEntity aoiEntity, int cellX, int cellY, HashSet<long> enterCell, HashSet<long> leaveCell)
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{
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enterCell.Clear();
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leaveCell.Clear();
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int r = (aoiEntity.ViewDistance - 1) / AOIManagerComponent.CellSize + 1;
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int leaveR = r;
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// if (aoiEntity.Unit.Type == UnitType.Player)
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// {
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// leaveR += 1;
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// }
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for (int i = cellX - leaveR; i <= cellX + leaveR; ++i)
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{
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for (int j = cellY - leaveR; j <= cellY + leaveR; ++j)
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{
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long cellId = CreateCellId(i, j);
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leaveCell.Add(cellId);
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if (i > cellX + r || i < cellX - r || j > cellY + r || j < cellY - r)
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{
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continue;
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}
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enterCell.Add(cellId);
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}
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}
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}
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}
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}
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