135 lines
4.3 KiB
C#
135 lines
4.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2016 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;
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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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[Flags]
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public enum ReferencePoints
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{
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Center = 0,
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Top = 1,
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Bottom = 2,
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Left = 4,
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Right = 8,
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}
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[Desc("Displays a custom UI overlay relative to the selection box.")]
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public class WithDecorationInfo : UpgradableTraitInfo
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{
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[Desc("Image used for this decoration. Defaults to the actor's type.")]
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public readonly string Image = null;
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[Desc("Sequence used for this decoration (can be animated).")]
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public readonly string Sequence = null;
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[Desc("Palette to render the sprite in. Reference the world actor's PaletteFrom* traits.")]
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[PaletteReference] public readonly string Palette = "chrome";
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[Desc("Point in the actor's selection box used as reference for offsetting the decoration image. " +
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"Possible values are combinations of Center, Top, Bottom, Left, Right.")]
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public readonly ReferencePoints ReferencePoint = ReferencePoints.Top | ReferencePoints.Left;
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[Desc("The Z offset to apply when rendering this decoration.")]
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public readonly int ZOffset = 1;
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[Desc("Player stances who can view the decoration.")]
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public readonly Stance Stances = Stance.Ally;
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[Desc("Should this be visible only when selected?")]
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public readonly bool RequiresSelection = false;
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public override object Create(ActorInitializer init) { return new WithDecoration(init.Self, this); }
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}
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public class WithDecoration : UpgradableTrait<WithDecorationInfo>, ITick, IRender, IPostRenderSelection
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{
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protected readonly Animation Anim;
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readonly string image;
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readonly Actor self;
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public WithDecoration(Actor self, WithDecorationInfo info)
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: base(info)
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{
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this.self = self;
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image = info.Image ?? self.Info.Name;
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Anim = new Animation(self.World, image, () => self.World.Paused);
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Anim.PlayRepeating(info.Sequence);
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}
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public virtual bool ShouldRender(Actor self) { return true; }
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public IEnumerable<IRenderable> Render(Actor self, WorldRenderer wr)
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{
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return !Info.RequiresSelection ? RenderInner(self, wr) : Enumerable.Empty<IRenderable>();
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}
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public IEnumerable<IRenderable> RenderAfterWorld(WorldRenderer wr)
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{
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return Info.RequiresSelection ? RenderInner(self, wr) : Enumerable.Empty<IRenderable>();
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}
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IEnumerable<IRenderable> RenderInner(Actor self, WorldRenderer wr)
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{
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if (IsTraitDisabled || self.IsDead || !self.IsInWorld || Anim == null)
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return Enumerable.Empty<IRenderable>();
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if (self.World.RenderPlayer != null)
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{
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var stance = self.Owner.Stances[self.World.RenderPlayer];
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if (!Info.Stances.HasStance(stance))
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return Enumerable.Empty<IRenderable>();
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}
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if (!ShouldRender(self) || self.World.FogObscures(self))
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return Enumerable.Empty<IRenderable>();
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var bounds = self.VisualBounds;
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var halfSize = (0.5f * Anim.Image.Size.XY).ToInt2();
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var boundsOffset = new int2(bounds.Left + bounds.Right, bounds.Top + bounds.Bottom) / 2;
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var sizeOffset = -halfSize;
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if (Info.ReferencePoint.HasFlag(ReferencePoints.Top))
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{
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boundsOffset -= new int2(0, bounds.Height / 2);
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sizeOffset += new int2(0, halfSize.Y);
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}
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else if (Info.ReferencePoint.HasFlag(ReferencePoints.Bottom))
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{
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boundsOffset += new int2(0, bounds.Height / 2);
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sizeOffset -= new int2(0, halfSize.Y);
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}
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if (Info.ReferencePoint.HasFlag(ReferencePoints.Left))
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{
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boundsOffset -= new int2(bounds.Width / 2, 0);
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sizeOffset += new int2(halfSize.X, 0);
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}
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else if (Info.ReferencePoint.HasFlag(ReferencePoints.Right))
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{
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boundsOffset += new int2(bounds.Width / 2, 0);
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sizeOffset -= new int2(halfSize.X, 0);
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}
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var pxPos = wr.Viewport.WorldToViewPx(wr.ScreenPxPosition(self.CenterPosition) + boundsOffset) + sizeOffset;
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return new IRenderable[] { new UISpriteRenderable(Anim.Image, self.CenterPosition, pxPos, Info.ZOffset, wr.Palette(Info.Palette), 1f) };
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}
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public void Tick(Actor self) { Anim.Tick(); }
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}
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}
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