113 lines
3.4 KiB
C#
113 lines
3.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 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.Mods.Common.Traits;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Widgets
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{
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public interface IEditorBrush : IDisposable
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{
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bool HandleMouseInput(MouseInput mi);
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void Tick();
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}
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public sealed class EditorDefaultBrush : IEditorBrush
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{
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public readonly ActorInfo Actor;
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readonly WorldRenderer worldRenderer;
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readonly World world;
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readonly EditorViewportControllerWidget editorWidget;
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readonly EditorActorLayer editorLayer;
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readonly Dictionary<int, ResourceType> resources;
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public EditorActorPreview SelectedActor;
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int2 worldPixel;
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public EditorDefaultBrush(EditorViewportControllerWidget editorWidget, WorldRenderer wr)
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{
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this.editorWidget = editorWidget;
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worldRenderer = wr;
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world = wr.World;
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editorLayer = world.WorldActor.Trait<EditorActorLayer>();
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resources = world.WorldActor.TraitsImplementing<ResourceType>()
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.ToDictionary(r => r.Info.ResourceType, r => r);
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}
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long CalculateActorSelectionPriority(EditorActorPreview actor)
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{
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var centerPixel = new int2(actor.Bounds.X, actor.Bounds.Y);
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var pixelDistance = (centerPixel - worldPixel).Length;
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// If 2+ actors have the same pixel position, then the highest appears on top.
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var worldZPosition = actor.CenterPosition.Z;
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// Sort by pixel distance then in world z position.
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return ((long)pixelDistance << 32) + worldZPosition;
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}
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public bool HandleMouseInput(MouseInput mi)
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{
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// Exclusively uses mouse wheel and both mouse buttons, but nothing else
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// Mouse move events are important for tooltips, so we always allow these through
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if ((mi.Button != MouseButton.Left && mi.Button != MouseButton.Right
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&& mi.Event != MouseInputEvent.Move && mi.Event != MouseInputEvent.Scroll) ||
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mi.Event == MouseInputEvent.Down)
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return false;
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worldPixel = worldRenderer.Viewport.ViewToWorldPx(mi.Location);
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var cell = worldRenderer.Viewport.ViewToWorld(mi.Location);
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var underCursor = editorLayer.PreviewsAt(worldPixel).MinByOrDefault(CalculateActorSelectionPriority);
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var mapResources = world.Map.Resources;
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ResourceType type;
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if (underCursor != null)
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editorWidget.SetTooltip(underCursor.Tooltip);
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else if (mapResources.Contains(cell) && resources.TryGetValue(mapResources[cell].Type, out type))
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editorWidget.SetTooltip(type.Info.Type);
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else
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editorWidget.SetTooltip(null);
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// Finished with mouse move events, so let them bubble up the widget tree
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if (mi.Event == MouseInputEvent.Move)
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return false;
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if (mi.Button == MouseButton.Left)
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{
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editorWidget.SetTooltip(null);
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SelectedActor = underCursor;
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}
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if (mi.Button == MouseButton.Right)
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{
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editorWidget.SetTooltip(null);
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if (underCursor != null && underCursor != SelectedActor)
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editorLayer.Remove(underCursor);
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if (mapResources.Contains(cell) && mapResources[cell].Type != 0)
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mapResources[cell] = default(ResourceTile);
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}
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return true;
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}
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public void Tick() { }
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public void Dispose() { }
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}
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}
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