355 lines
10 KiB
C#
355 lines
10 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 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.Drawing;
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using System.Linq;
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using OpenRA.Effects;
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using OpenRA.Graphics;
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using OpenRA.Orders;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Widgets
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{
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public class WorldInteractionControllerWidget : Widget
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{
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static readonly Actor[] NoActors = { };
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protected readonly World World;
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readonly WorldRenderer worldRenderer;
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int2? dragStart, dragEnd;
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int2 lastMousePosition;
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[ObjectCreator.UseCtor]
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public WorldInteractionControllerWidget(World world, WorldRenderer worldRenderer)
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{
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this.World = world;
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this.worldRenderer = worldRenderer;
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}
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public override void Draw()
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{
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if (!IsDragging)
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{
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// Render actors under the mouse pointer
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foreach (var u in SelectActorsInBoxWithDeadzone(World, lastMousePosition, lastMousePosition))
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worldRenderer.DrawRollover(u);
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return;
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}
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// Render actors in the dragbox
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var selbox = SelectionBox;
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Game.Renderer.WorldLineRenderer.DrawRect(selbox.Value.First.ToFloat2(), selbox.Value.Second.ToFloat2(), Color.White);
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foreach (var u in SelectActorsInBoxWithDeadzone(World, selbox.Value.First, selbox.Value.Second))
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worldRenderer.DrawRollover(u);
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}
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public override bool HandleMouseInput(MouseInput mi)
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{
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var xy = worldRenderer.Viewport.ViewToWorldPx(mi.Location);
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var useClassicMouseStyle = Game.Settings.Game.UseClassicMouseStyle;
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var hasBox = SelectionBox != null;
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var multiClick = mi.MultiTapCount >= 2;
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if (mi.Button == MouseButton.Left && mi.Event == MouseInputEvent.Down)
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{
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if (!TakeMouseFocus(mi))
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return false;
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dragStart = xy;
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// Place buildings, use support powers, and other non-unit things
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if (!(World.OrderGenerator is UnitOrderGenerator))
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{
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ApplyOrders(World, mi);
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dragStart = dragEnd = null;
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YieldMouseFocus(mi);
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lastMousePosition = xy;
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return true;
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}
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}
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if (mi.Button == MouseButton.Left && mi.Event == MouseInputEvent.Move && dragStart.HasValue)
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dragEnd = xy;
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if (mi.Button == MouseButton.Left && mi.Event == MouseInputEvent.Up)
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{
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if (World.OrderGenerator is UnitOrderGenerator)
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{
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if (useClassicMouseStyle && HasMouseFocus)
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{
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if (!hasBox && World.Selection.Actors.Any() && !multiClick)
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{
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if (!(World.ScreenMap.ActorsAt(xy).Where(x => x.HasTrait<Selectable>() && x.Trait<Selectable>().Info.Selectable &&
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(x.Owner.IsAlliedWith(World.RenderPlayer) || !World.FogObscures(x))).Any() && !mi.Modifiers.HasModifier(Modifiers.Ctrl) &&
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!mi.Modifiers.HasModifier(Modifiers.Alt) && UnitOrderGenerator.InputOverridesSelection(World, xy, mi)))
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{
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// Order units instead of selecting
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ApplyOrders(World, mi);
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dragStart = dragEnd = null;
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YieldMouseFocus(mi);
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lastMousePosition = xy;
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return true;
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}
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}
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}
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if (multiClick)
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{
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var unit = World.ScreenMap.ActorsAt(xy)
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.WithHighestSelectionPriority();
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if (unit != null && unit.Owner == (World.RenderPlayer ?? World.LocalPlayer))
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{
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var s = unit.TraitOrDefault<Selectable>();
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if (s != null)
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{
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// Select actors on the screen that have the same selection class as the actor under the mouse cursor
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var newSelection = SelectActorsOnScreen(World, worldRenderer, new HashSet<string> { s.Class }, unit.Owner);
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World.Selection.Combine(World, newSelection, true, false);
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}
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}
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}
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else if (dragStart.HasValue)
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{
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// Select actors in the dragbox
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var newSelection = SelectActorsInBoxWithDeadzone(World, dragStart.Value, xy);
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World.Selection.Combine(World, newSelection, mi.Modifiers.HasModifier(Modifiers.Shift), dragStart == xy);
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}
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}
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dragStart = dragEnd = null;
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YieldMouseFocus(mi);
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}
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if (mi.Button == MouseButton.Right && mi.Event == MouseInputEvent.Down)
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{
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// Don't do anything while selecting
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if (!hasBox)
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{
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if (useClassicMouseStyle)
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World.Selection.Clear();
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ApplyOrders(World, mi);
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}
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}
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lastMousePosition = xy;
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return true;
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}
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bool IsDragging
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{
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get
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{
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return dragStart.HasValue && dragEnd.HasValue && (dragStart.Value - dragEnd.Value).Length > Game.Settings.Game.SelectionDeadzone;
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}
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}
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public Pair<int2, int2>? SelectionBox
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{
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get
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{
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if (!IsDragging) return null;
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return Pair.New(dragStart.Value, dragEnd.Value);
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}
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}
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void ApplyOrders(World world, MouseInput mi)
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{
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if (world.OrderGenerator == null)
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return;
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var cell = worldRenderer.Viewport.ViewToWorld(mi.Location);
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var orders = world.OrderGenerator.Order(world, cell, mi).ToArray();
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world.PlayVoiceForOrders(orders);
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var flashed = false;
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foreach (var order in orders)
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{
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var o = order;
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if (o == null)
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continue;
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if (!flashed && !o.SuppressVisualFeedback)
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{
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if (o.TargetActor != null)
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{
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world.AddFrameEndTask(w => w.Add(new FlashTarget(o.TargetActor)));
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flashed = true;
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}
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else if (o.TargetLocation != CPos.Zero)
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{
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var pos = world.Map.CenterOfCell(cell);
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world.AddFrameEndTask(w => w.Add(new SpriteEffect(pos, world, "moveflsh", "moveflash")));
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flashed = true;
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}
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}
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world.IssueOrder(o);
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}
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}
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public override string GetCursor(int2 screenPos)
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{
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return Sync.CheckSyncUnchanged(World, () =>
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{
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// Always show an arrow while selecting
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if (SelectionBox != null)
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return null;
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var cell = worldRenderer.Viewport.ViewToWorld(screenPos);
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var mi = new MouseInput
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{
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Location = screenPos,
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Button = Game.Settings.Game.MouseButtonPreference.Action,
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Modifiers = Game.GetModifierKeys()
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};
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return World.OrderGenerator.GetCursor(World, cell, mi);
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});
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}
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public override bool HandleKeyPress(KeyInput e)
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{
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var player = World.RenderPlayer ?? World.LocalPlayer;
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if (e.Event == KeyInputEvent.Down)
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{
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var key = Hotkey.FromKeyInput(e);
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if (key == Game.Settings.Keys.PauseKey && World.LocalPlayer != null) // Disable pausing for spectators
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World.SetPauseState(!World.Paused);
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else if (key == Game.Settings.Keys.SelectAllUnitsKey)
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{
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// Select actors on the screen which belong to the current player
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var ownUnitsOnScreen = SelectActorsOnScreen(World, worldRenderer, null, player);
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World.Selection.Combine(World, ownUnitsOnScreen, false, false);
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}
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else if (key == Game.Settings.Keys.SelectUnitsByTypeKey)
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{
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// Get all the selected actors' selection classes
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var selectedClasses = World.Selection.Actors
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.Where(x => x.Owner == player)
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.Select(a => a.Trait<Selectable>().Class)
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.ToHashSet();
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// Select actors on the screen that have the same selection class as one of the already selected actors
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var newSelection = SelectActorsOnScreen(World, worldRenderer, selectedClasses, player).ToList();
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// Check if selecting actors on the screen has selected new units
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if (newSelection.Count() > World.Selection.Actors.Count())
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Game.Debug("Selected across screen");
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else
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{
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// Select actors in the world that have the same selection class as one of the already selected actors
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newSelection = SelectActorsInWorld(World, selectedClasses, player).ToList();
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Game.Debug("Selected across map");
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}
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World.Selection.Combine(World, newSelection, true, false);
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}
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else if (key == Game.Settings.Keys.ToggleStatusBarsKey)
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return ToggleStatusBars();
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else if (key == Game.Settings.Keys.TogglePixelDoubleKey)
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return TogglePixelDouble();
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}
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return false;
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}
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static IEnumerable<Actor> SelectActorsOnScreen(World world, WorldRenderer wr, IEnumerable<string> selectionClasses, Player player)
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{
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return SelectActorsByPlayerByClass(world.ScreenMap.ActorsInBox(wr.Viewport.TopLeft, wr.Viewport.BottomRight), selectionClasses, player);
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}
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static IEnumerable<Actor> SelectActorsInWorld(World world, IEnumerable<string> selectionClasses, Player player)
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{
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return SelectActorsByPlayerByClass(world.ActorMap.ActorsInWorld(), selectionClasses, player);
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}
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static IEnumerable<Actor> SelectActorsByPlayerByClass(IEnumerable<Actor> actors, IEnumerable<string> selectionClasses, Player player)
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{
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return actors.Where(a =>
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{
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if (a.Owner != player)
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return false;
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var s = a.TraitOrDefault<Selectable>();
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// sc == null means that units, that meet all other criteria, get selected
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return s != null && s.Info.Selectable && (selectionClasses == null || selectionClasses.Contains(s.Class));
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});
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}
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static IEnumerable<Actor> SelectActorsInBoxWithDeadzone(World world, int2 a, int2 b)
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{
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// For dragboxes that are too small, shrink the dragbox to a single point (point b)
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if ((a - b).Length <= Game.Settings.Game.SelectionDeadzone)
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a = b;
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return world.ScreenMap.ActorsInBox(a, b)
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.Where(x =>
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{
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var s = x.TraitOrDefault<Selectable>();
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return s != null && s.Info.Selectable && (x.Owner.IsAlliedWith(world.RenderPlayer) || !world.FogObscures(x));
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})
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.GroupBy(x => x.GetSelectionPriority())
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.OrderByDescending(g => g.Key)
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.Select(g => g.AsEnumerable())
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.DefaultIfEmpty(NoActors)
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.FirstOrDefault();
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}
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bool ToggleStatusBars()
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{
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Game.Settings.Game.AlwaysShowStatusBars ^= true;
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return true;
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}
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bool TogglePixelDouble()
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{
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Game.Settings.Graphics.PixelDouble ^= true;
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worldRenderer.Viewport.Zoom = Game.Settings.Graphics.PixelDouble ? 2 : 1;
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return true;
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}
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}
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static class PriorityExts
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{
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const int PriorityRange = 30;
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public static int GetSelectionPriority(this Actor a)
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{
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var basePriority = a.Info.Traits.Get<SelectableInfo>().Priority;
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var lp = a.World.LocalPlayer;
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if (a.Owner == lp || lp == null)
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return basePriority;
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switch (lp.Stances[a.Owner])
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{
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case Stance.Ally: return basePriority - PriorityRange;
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case Stance.Neutral: return basePriority - 2 * PriorityRange;
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case Stance.Enemy: return basePriority - 3 * PriorityRange;
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default:
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throw new InvalidOperationException();
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}
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}
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}
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} |