80 lines
2.4 KiB
C#
80 lines
2.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.FileFormats;
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using OpenRA.Mods.RA.Buildings;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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public class CrateSpawnerInfo : TraitInfo<CrateSpawner>
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{
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public readonly int Minimum = 1; // Minumum number of crates
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public readonly int Maximum = 255; // Maximum number of crates
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public readonly string[] ValidGround = {"Clear", "Rough", "Road", "Ore", "Beach"}; // Which terrain types can we drop on?
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public readonly string[] ValidWater = {"Water"};
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public readonly int SpawnInterval = 180; // Average time (seconds) between crate spawn
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public readonly float WaterChance = .2f; // Chance of generating a water crate instead of a land crate
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}
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public class CrateSpawner : ITick
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{
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List<Actor> crates = new List<Actor>();
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int ticks = 0;
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public void Tick(Actor self)
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{
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if (--ticks <= 0)
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{
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var info = self.Info.Traits.Get<CrateSpawnerInfo>();
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ticks = info.SpawnInterval * 25; // todo: randomize
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crates.RemoveAll(x => !x.IsInWorld);
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var toSpawn = Math.Max(0, info.Minimum - crates.Count)
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+ (crates.Count < info.Maximum ? 1 : 0);
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for (var n = 0; n < toSpawn; n++)
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SpawnCrate(self, info);
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}
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}
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void SpawnCrate(Actor self, CrateSpawnerInfo info)
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{
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var threshold = 100;
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var inWater = self.World.SharedRandom.NextDouble() < info.WaterChance;
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for (var n = 0; n < threshold; n++ )
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{
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var p = self.World.ChooseRandomCell(self.World.SharedRandom);
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// Is this valid terrain?
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var terrainType = self.World.GetTerrainType(p);
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if (!(inWater ? info.ValidWater : info.ValidGround).Contains(terrainType)) continue;
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// Don't spawn on any actors
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if (self.World.WorldActor.Trait<BuildingInfluence>().GetBuildingAt(p) != null) continue;
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if (self.World.WorldActor.Trait<UnitInfluence>().GetUnitsAt(p).Any()) continue;
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self.World.AddFrameEndTask(
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w => crates.Add(w.CreateActor("crate", new TypeDictionary
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{
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new LocationInit( p ),
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new OwnerInit( self.World.WorldActor.Owner ),
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})));
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return;
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}
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}
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}
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}
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