2018-04-13 09:19:50 +00:00
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Input;
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using osu.Game.Graphics;
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using OpenTK;
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using OpenTK.Graphics;
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namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
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{
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public class SpinnerDisc : CircularContainer, IHasAccentColour
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{
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private readonly Spinner spinner;
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public Color4 AccentColour
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{
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get { return background.AccentColour; }
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set { background.AccentColour = value; }
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}
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private readonly SpinnerBackground background;
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private const float idle_alpha = 0.2f;
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private const float tracking_alpha = 0.4f;
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public override bool IsPresent => true; // handle input when hidden
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public SpinnerDisc(Spinner s)
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{
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spinner = s;
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RelativeSizeAxes = Axes.Both;
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Children = new Drawable[]
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{
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background = new SpinnerBackground { Alpha = idle_alpha },
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};
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}
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public override bool ReceiveMouseInputAt(Vector2 screenSpacePos) => true;
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private bool tracking;
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public bool Tracking
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{
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get { return tracking; }
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set
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{
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if (value == tracking) return;
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tracking = value;
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background.FadeTo(tracking ? tracking_alpha : idle_alpha, 100);
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}
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}
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private bool complete;
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public bool Complete
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{
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get { return complete; }
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set
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{
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if (value == complete) return;
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complete = value;
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updateCompleteTick();
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}
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}
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protected override bool OnMouseMove(InputState state)
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{
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mousePosition = Parent.ToLocalSpace(state.Mouse.NativeState.Position);
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return base.OnMouseMove(state);
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}
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private Vector2 mousePosition;
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private float lastAngle;
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private float currentRotation;
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public float RotationAbsolute;
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private int completeTick;
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private bool updateCompleteTick() => completeTick != (completeTick = (int)(RotationAbsolute / 360));
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private bool rotationTransferred;
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protected override void Update()
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{
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base.Update();
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var thisAngle = -(float)MathHelper.RadiansToDegrees(Math.Atan2(mousePosition.X - DrawSize.X / 2, mousePosition.Y - DrawSize.Y / 2));
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bool validAndTracking = tracking && spinner.StartTime <= Time.Current && spinner.EndTime > Time.Current;
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if (validAndTracking)
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{
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if (!rotationTransferred)
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{
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currentRotation = Rotation * 2;
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rotationTransferred = true;
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}
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if (thisAngle - lastAngle > 180)
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lastAngle += 360;
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else if (lastAngle - thisAngle > 180)
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lastAngle -= 360;
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currentRotation += thisAngle - lastAngle;
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RotationAbsolute += Math.Abs(thisAngle - lastAngle);
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}
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lastAngle = thisAngle;
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if (Complete && updateCompleteTick())
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{
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background.FinishTransforms(false, nameof(Alpha));
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background
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.FadeTo(tracking_alpha + 0.2f, 60, Easing.OutExpo)
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.Then()
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.FadeTo(tracking_alpha, 250, Easing.OutQuint);
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}
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this.RotateTo(currentRotation / 2, validAndTracking ? 500 : 1500, Easing.OutExpo);
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}
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}
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}
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