6d51b33cf8
### Summary - Adds CanSpawnMobile(x, y, minZ, maxZ, canSwim, cantWalk, out spawnZ) overload for finding spawn surfaces within a Z range - Adds CanSpawnItem(x, y, minZ, maxZ, out spawnZ) for item spawning with Surface+Impassable support (tables, furniture) - Uses bitmask optimization inspired by Item.DropToWorld's m_OpenSlots pattern for O(1) surface/blocker checks - HomeRange spawners now use surface detection to set proper Z bounds ### Key Changes Map.cs: - CanSpawnMobile with Z-range finds lowest valid surface for mobiles - CanSpawnItem with Z-range finds lowest valid surface for items (including tables) - CanFitItem for point-check item placement on Surface+Impassable tiles - Bitmask approach eliminates nested loops and stackalloc arrays Spawners: - Simplified GetSpawnPosition using new Z-range methods - HomeRange setter detects surface below spawner for proper Z bounds - Consistent handling for mobiles and items ### Bug Fixes - Water tiles (Impassable | Wet) no longer block swimming mobs - Items can now spawn on tables/furniture (Surface+Impassable) ### Test Plan - Run dotnet test - 631 tests pass - Manual testing: multi-story spawning, water mobs, item spawning on tables - Verify HomeRange spawner movement shifts bounds correctly
129 lines
3.9 KiB
C#
129 lines
3.9 KiB
C#
/*************************************************************************
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* ModernUO *
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* Copyright 2019-2025 - ModernUO Development Team *
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* Email: hi@modernuo.com *
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* File: WalkRandomLogic.cs *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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************************************************************************/
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using System;
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using Server.Engines.Spawners;
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namespace Server.Mobiles;
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public abstract partial class BaseAI
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{
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public virtual void WalkRandom(int chanceToNotMove, int chanceToDir, int steps)
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{
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if (Mobile.Deleted || Mobile.DisallowAllMoves || chanceToNotMove <= 0)
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{
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return;
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}
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var maxSteps = Math.Min(steps, 3);
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for (var i = 0; i < maxSteps; i++)
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{
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if (Utility.Random(1 + chanceToNotMove) == 0)
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{
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DoMove(GetRandomDirection(chanceToDir));
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}
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}
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}
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public virtual void WalkRandomInHome(int chanceToNotMove, int chanceToDir, int steps)
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{
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if (Mobile.Deleted || Mobile.DisallowAllMoves)
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{
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return;
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}
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if (Mobile.Home == Point3D.Zero)
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{
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WalkRandomNoHome(chanceToNotMove, chanceToDir, steps);
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}
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else
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{
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WalkRandomWithHome(chanceToNotMove, chanceToDir, steps);
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}
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}
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private void WalkRandomNoHome(int chanceToNotMove, int chanceToDir, int steps)
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{
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if (Mobile.Spawner is RegionSpawner rs)
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{
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var region = rs.SpawnRegion;
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if (Mobile.Region.AcceptsSpawnsFrom(region))
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{
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Mobile.WalkRegion = region;
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WalkRandom(chanceToNotMove, chanceToDir, steps);
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Mobile.WalkRegion = null;
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}
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else if (region.GoLocation != Point3D.Zero && Utility.RandomBool())
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{
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DoMove(Mobile.GetDirectionTo(region.GoLocation));
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}
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else
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{
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WalkRandom(chanceToNotMove, chanceToDir, 1);
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}
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}
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else
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{
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WalkRandom(chanceToNotMove, chanceToDir, steps);
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}
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}
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private void WalkRandomWithHome(int chanceToNotMove, int chanceToDir, int steps)
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{
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if (Mobile.RangeHome == 0)
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{
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if (Mobile.Location != Mobile.Home)
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{
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DoMove(Mobile.GetDirectionTo(Mobile.Home));
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}
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return;
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}
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for (var i = 0; i < steps; i++)
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{
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var currDist = (int)Mobile.GetDistanceToSqrt(Mobile.Home);
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if (currDist > Mobile.RangeHome)
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{
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DoMove(Mobile.GetDirectionTo(Mobile.Home));
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}
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else if (currDist < Mobile.RangeHome * 2 / 3 || Utility.Random(10) <= 5)
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{
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WalkRandom(chanceToNotMove, chanceToDir, 1);
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}
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else
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{
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DoMove(Mobile.GetDirectionTo(Mobile.Home));
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}
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}
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}
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private Direction GetRandomDirection(int chanceToDir)
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{
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var randomMove = Utility.Random(8 * (chanceToDir + 1));
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if (randomMove < 8)
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{
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return (Direction)randomMove;
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}
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return Mobile.Direction;
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}
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}
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