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osu-lazer/osu.Game/Rulesets/Edit/PlayfieldOverlay.cs
2017-12-02 20:24:10 +09:00

128 lines
4.3 KiB
C#

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Primitives;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Input;
using OpenTK;
using OpenTK.Graphics;
using System.Collections.Generic;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.UI;
using System.Linq;
using osu.Game.Graphics;
namespace osu.Game.Rulesets.Edit
{
public class PlayfieldOverlay : CompositeDrawable
{
private readonly static Color4 selection_normal_colour = Color4.White;
private readonly static Color4 selection_attached_colour = OsuColour.FromHex("eeaa00");
private readonly Container dragBox;
private readonly Playfield playfield;
public PlayfieldOverlay(Playfield playfield)
{
this.playfield = playfield;
RelativeSizeAxes = Axes.Both;
InternalChildren = new[]
{
dragBox = new Container
{
Masking = true,
BorderColour = Color4.White,
BorderThickness = 2,
MaskingSmoothness = 1,
Child = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0.1f
}
}
};
}
private Vector2 dragStartPos;
private RectangleF dragRectangle;
private List<DrawableHitObject> capturedHitObjects = new List<DrawableHitObject>();
protected override bool OnDragStart(InputState state)
{
dragStartPos = ToLocalSpace(state.Mouse.NativeState.Position);
dragBox.Position = dragStartPos;
dragBox.Size = Vector2.Zero;
dragBox.FadeTo(1);
dragBox.FadeColour(selection_normal_colour);
dragBox.BorderThickness = 2;
return true;
}
protected override bool OnDrag(InputState state)
{
var dragPos = ToLocalSpace(state.Mouse.NativeState.Position);
dragRectangle = RectangleF.FromLTRB(
Math.Min(dragStartPos.X, dragPos.X),
Math.Min(dragStartPos.Y, dragPos.Y),
Math.Max(dragStartPos.X, dragPos.X),
Math.Max(dragStartPos.Y, dragPos.Y));
dragBox.Position = dragRectangle.Location;
dragBox.Size = dragRectangle.Size;
updateCapturedHitObjects();
return true;
}
private void updateCapturedHitObjects()
{
capturedHitObjects.Clear();
foreach (var obj in playfield.HitObjects.Objects)
{
if (!obj.IsAlive || !obj.IsPresent)
continue;
var objectPosition = obj.Parent.ToScreenSpace(obj.SelectionPoint);
if (dragRectangle.Contains(ToLocalSpace(objectPosition)))
capturedHitObjects.Add(obj);
}
}
protected override bool OnDragEnd(InputState state)
{
if (capturedHitObjects.Count == 0)
dragBox.FadeOut(400, Easing.OutQuint);
else
{
// Move the rectangle to cover the hitobjects
var topLeft = new Vector2(float.MaxValue, float.MaxValue);
var bottomRight = new Vector2(float.MinValue, float.MinValue);
foreach (var obj in capturedHitObjects)
{
topLeft = Vector2.ComponentMin(topLeft, ToLocalSpace(obj.SelectionQuad.TopLeft));
bottomRight = Vector2.ComponentMax(bottomRight, ToLocalSpace(obj.SelectionQuad.BottomRight));
}
topLeft -= new Vector2(5);
bottomRight += new Vector2(5);
dragBox.MoveTo(topLeft, 200, Easing.OutQuint)
.ResizeTo(bottomRight - topLeft, 200, Easing.OutQuint)
.FadeColour(selection_attached_colour, 200, Easing.OutQuint);
dragBox.BorderThickness = 3;
}
return true;
}
}
}