107 lines
2.9 KiB
C#
107 lines
2.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2021 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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits
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{
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[TraitLocation(SystemActors.EditorWorld)]
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public class BuildableTerrainOverlayInfo : TraitInfo
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{
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[FieldLoader.Require]
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public readonly HashSet<string> AllowedTerrainTypes = null;
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[PaletteReference]
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[Desc("Palette to use for rendering the sprite.")]
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public readonly string Palette = TileSet.TerrainPaletteInternalName;
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[Desc("Sprite definition.")]
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public readonly string Image = "overlay";
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[SequenceReference("Image")]
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[Desc("Sequence to use for unbuildable area.")]
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public readonly string Sequence = "build-invalid";
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[Desc("Custom opacity to apply to the overlay sprite.")]
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public readonly float Alpha = 1f;
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public override object Create(ActorInitializer init)
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{
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return new BuildableTerrainOverlay(init.Self, this);
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}
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}
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public class BuildableTerrainOverlay : IRenderAboveWorld, IWorldLoaded, INotifyActorDisposing
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{
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readonly BuildableTerrainOverlayInfo info;
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readonly World world;
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readonly Sprite disabledSprite;
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public bool Enabled = false;
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TerrainSpriteLayer render;
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PaletteReference palette;
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bool disposed;
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public BuildableTerrainOverlay(Actor self, BuildableTerrainOverlayInfo info)
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{
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this.info = info;
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world = self.World;
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var rules = self.World.Map.Rules;
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disabledSprite = rules.Sequences.GetSequence(info.Image, info.Sequence).GetSprite(0);
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}
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void IWorldLoaded.WorldLoaded(World w, WorldRenderer wr)
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{
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render = new TerrainSpriteLayer(w, wr, disabledSprite, BlendMode.Alpha, wr.World.Type != WorldType.Editor);
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world.Map.Tiles.CellEntryChanged += UpdateTerrainCell;
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world.Map.CustomTerrain.CellEntryChanged += UpdateTerrainCell;
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var cells = w.Map.AllCells.Where(c => w.Map.Contains(c) &&
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!info.AllowedTerrainTypes.Contains(w.Map.GetTerrainInfo(c).Type)).ToHashSet();
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palette = wr.Palette(info.Palette);
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foreach (var cell in cells)
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UpdateTerrainCell(cell);
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}
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void UpdateTerrainCell(CPos cell)
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{
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if (!world.Map.Contains(cell))
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return;
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if (!info.AllowedTerrainTypes.Contains(world.Map.GetTerrainInfo(cell).Type))
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render.Update(cell, disabledSprite, palette, 1f, info.Alpha);
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}
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void IRenderAboveWorld.RenderAboveWorld(Actor self, WorldRenderer wr)
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{
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if (Enabled)
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render.Draw(wr.Viewport);
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}
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void INotifyActorDisposing.Disposing(Actor self)
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{
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if (disposed)
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return;
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render.Dispose();
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disposed = true;
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}
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}
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}
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