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osu-lazer/osu.Game.Rulesets.Catch/UI/Catcher.cs

466 lines
15 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Animations;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Input.Bindings;
using osu.Framework.Utils;
using osu.Game.Beatmaps;
using osu.Game.Rulesets.Catch.Objects;
using osu.Game.Rulesets.Catch.Objects.Drawables;
using osu.Game.Rulesets.Objects.Drawables;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Rulesets.Catch.UI
{
public class Catcher : Container, IKeyBindingHandler<CatchAction>
{
public static Color4 DefaultHyperDashColour { get; } = Color4.Red;
/// <summary>
/// Whether we are hyper-dashing or not.
/// </summary>
public bool HyperDashing => hyperDashModifier != 1;
/// <summary>
/// The relative space to cover in 1 millisecond. based on 1 game pixel per millisecond as in osu-stable.
/// </summary>
public const double BASE_SPEED = 1.0 / 512;
public Container ExplodingFruitTarget;
public Container AdditiveTarget;
public CatcherAnimationState CurrentState { get; private set; }
/// <summary>
/// The width of the catcher which can receive fruit. Equivalent to "catchMargin" in osu-stable.
/// </summary>
private const float allowed_catch_range = 0.8f;
/// <summary>
/// Width of the area that can be used to attempt catches during gameplay.
/// </summary>
internal float CatchWidth => CatcherArea.CATCHER_SIZE * Math.Abs(Scale.X) * allowed_catch_range;
protected bool Dashing
{
get => dashing;
set
{
if (value == dashing) return;
dashing = value;
Trail |= dashing;
}
}
/// <summary>
/// Activate or deactivate the trail. Will be automatically deactivated when conditions to keep the trail displayed are no longer met.
/// </summary>
protected bool Trail
{
get => trail;
set
{
if (value == trail || AdditiveTarget == null) return;
trail = value;
if (Trail)
beginTrail();
}
}
private Container<DrawableHitObject> caughtFruit;
private CatcherSprite catcherIdle;
private CatcherSprite catcherKiai;
private CatcherSprite catcherFail;
private CatcherSprite currentCatcher;
private int currentDirection;
private bool dashing;
private bool trail;
private double hyperDashModifier = 1;
private int hyperDashDirection;
private float hyperDashTargetPosition;
public Catcher(BeatmapDifficulty difficulty = null)
{
RelativePositionAxes = Axes.X;
X = 0.5f;
Origin = Anchor.TopCentre;
Size = new Vector2(CatcherArea.CATCHER_SIZE);
if (difficulty != null)
Scale = new Vector2(1.0f - 0.7f * (difficulty.CircleSize - 5) / 5);
}
[BackgroundDependencyLoader]
private void load()
{
Children = new Drawable[]
{
caughtFruit = new Container<DrawableHitObject>
{
Anchor = Anchor.TopCentre,
Origin = Anchor.BottomCentre,
},
catcherIdle = new CatcherSprite(CatcherAnimationState.Idle)
{
Anchor = Anchor.TopCentre,
Alpha = 0,
},
catcherKiai = new CatcherSprite(CatcherAnimationState.Kiai)
{
Anchor = Anchor.TopCentre,
Alpha = 0,
},
catcherFail = new CatcherSprite(CatcherAnimationState.Fail)
{
Anchor = Anchor.TopCentre,
Alpha = 0,
}
};
updateCatcher();
}
/// <summary>
/// Add a caught fruit to the catcher's stack.
/// </summary>
/// <param name="fruit">The fruit that was caught.</param>
public void PlaceOnPlate(DrawableCatchHitObject fruit)
{
var ourRadius = fruit.DisplayRadius;
float theirRadius = 0;
const float allowance = 10;
while (caughtFruit.Any(f =>
f.LifetimeEnd == double.MaxValue &&
Vector2Extensions.Distance(f.Position, fruit.Position) < (ourRadius + (theirRadius = f.DrawSize.X / 2 * f.Scale.X)) / (allowance / 2)))
{
var diff = (ourRadius + theirRadius) / allowance;
fruit.X += (RNG.NextSingle() - 0.5f) * diff * 2;
fruit.Y -= RNG.NextSingle() * diff;
}
fruit.X = Math.Clamp(fruit.X, -CatcherArea.CATCHER_SIZE / 2, CatcherArea.CATCHER_SIZE / 2);
caughtFruit.Add(fruit);
Add(new HitExplosion(fruit)
{
X = fruit.X,
Scale = new Vector2(fruit.HitObject.Scale)
});
}
/// <summary>
/// Let the catcher attempt to catch a fruit.
/// </summary>
/// <param name="fruit">The fruit to catch.</param>
/// <returns>Whether the catch is possible.</returns>
public bool AttemptCatch(CatchHitObject fruit)
{
var halfCatchWidth = CatchWidth * 0.5f;
// this stuff wil disappear once we move fruit to non-relative coordinate space in the future.
var catchObjectPosition = fruit.X * CatchPlayfield.BASE_WIDTH;
var catcherPosition = Position.X * CatchPlayfield.BASE_WIDTH;
var validCatch =
catchObjectPosition >= catcherPosition - halfCatchWidth &&
catchObjectPosition <= catcherPosition + halfCatchWidth;
// only update hyperdash state if we are catching a fruit.
// exceptions are Droplets and JuiceStreams.
if (!(fruit is Fruit)) return validCatch;
if (validCatch && fruit.HyperDash)
{
var target = fruit.HyperDashTarget;
var timeDifference = target.StartTime - fruit.StartTime;
double positionDifference = target.X * CatchPlayfield.BASE_WIDTH - catcherPosition;
var velocity = positionDifference / Math.Max(1.0, timeDifference - 1000.0 / 60.0);
SetHyperDashState(Math.Abs(velocity), target.X);
}
else
SetHyperDashState();
if (validCatch)
updateState(fruit.Kiai ? CatcherAnimationState.Kiai : CatcherAnimationState.Idle);
else if (!(fruit is Banana))
updateState(CatcherAnimationState.Fail);
return validCatch;
}
/// <summary>
/// Set hyper-dash state.
/// </summary>
/// <param name="modifier">The speed multiplier. If this is less or equals to 1, this catcher will be non-hyper-dashing state.</param>
/// <param name="targetPosition">When this catcher crosses this position, this catcher ends hyper-dashing.</param>
public void SetHyperDashState(double modifier = 1, float targetPosition = -1)
{
const float hyper_dash_transition_length = 180;
var wasHyperDashing = HyperDashing;
if (modifier <= 1 || X == targetPosition)
{
hyperDashModifier = 1;
hyperDashDirection = 0;
if (wasHyperDashing)
{
this.FadeColour(Color4.White, hyper_dash_transition_length, Easing.OutQuint);
this.FadeTo(1, hyper_dash_transition_length, Easing.OutQuint);
Trail &= Dashing;
}
}
else
{
hyperDashModifier = modifier;
hyperDashDirection = Math.Sign(targetPosition - X);
hyperDashTargetPosition = targetPosition;
if (!wasHyperDashing)
{
this.FadeColour(Color4.OrangeRed, hyper_dash_transition_length, Easing.OutQuint);
this.FadeTo(0.2f, hyper_dash_transition_length, Easing.OutQuint);
Trail = true;
var hyperDashEndGlow = createAdditiveSprite();
hyperDashEndGlow.MoveToOffset(new Vector2(0, -10), 1200, Easing.In);
hyperDashEndGlow.ScaleTo(hyperDashEndGlow.Scale * 0.95f).ScaleTo(hyperDashEndGlow.Scale * 1.2f, 1200, Easing.In);
hyperDashEndGlow.FadeOut(1200);
hyperDashEndGlow.Expire(true);
}
}
}
public bool OnPressed(CatchAction action)
{
switch (action)
{
case CatchAction.MoveLeft:
currentDirection--;
return true;
case CatchAction.MoveRight:
currentDirection++;
return true;
case CatchAction.Dash:
Dashing = true;
return true;
}
return false;
}
public void OnReleased(CatchAction action)
{
switch (action)
{
case CatchAction.MoveLeft:
currentDirection++;
break;
case CatchAction.MoveRight:
currentDirection--;
break;
case CatchAction.Dash:
Dashing = false;
break;
}
}
public void UpdatePosition(float position)
{
position = Math.Clamp(position, 0, 1);
if (position == X)
return;
Scale = new Vector2(Math.Abs(Scale.X) * (position > X ? 1 : -1), Scale.Y);
X = position;
}
/// <summary>
/// Drop any fruit off the plate.
/// </summary>
public void Drop()
{
foreach (var f in caughtFruit.ToArray())
Drop(f);
}
/// <summary>
/// Explode any fruit off the plate.
/// </summary>
public void Explode()
{
foreach (var f in caughtFruit.ToArray())
Explode(f);
}
public void Drop(DrawableHitObject fruit)
{
removeFromPlateWithTransform(fruit, f =>
{
f.MoveToY(f.Y + 75, 750, Easing.InSine);
f.FadeOut(750);
});
}
public void Explode(DrawableHitObject fruit)
{
var originalX = fruit.X * Scale.X;
removeFromPlateWithTransform(fruit, f =>
{
f.MoveToY(f.Y - 50, 250, Easing.OutSine).Then().MoveToY(f.Y + 50, 500, Easing.InSine);
f.MoveToX(f.X + originalX * 6, 1000);
f.FadeOut(750);
});
}
protected override void Update()
{
base.Update();
if (currentDirection == 0) return;
var direction = Math.Sign(currentDirection);
var dashModifier = Dashing ? 1 : 0.5;
var speed = BASE_SPEED * dashModifier * hyperDashModifier;
UpdatePosition((float)(X + direction * Clock.ElapsedFrameTime * speed));
// Correct overshooting.
if ((hyperDashDirection > 0 && hyperDashTargetPosition < X) ||
(hyperDashDirection < 0 && hyperDashTargetPosition > X))
{
X = hyperDashTargetPosition;
SetHyperDashState();
}
}
private void updateCatcher()
{
currentCatcher?.Hide();
switch (CurrentState)
{
default:
currentCatcher = catcherIdle;
break;
case CatcherAnimationState.Fail:
currentCatcher = catcherFail;
break;
case CatcherAnimationState.Kiai:
currentCatcher = catcherKiai;
break;
}
currentCatcher.Show();
(currentCatcher.Drawable as IFramedAnimation)?.GotoFrame(0);
}
private void beginTrail()
{
if (!dashing && !HyperDashing)
{
Trail = false;
return;
}
var additive = createAdditiveSprite();
additive.FadeTo(0.4f).FadeOut(800, Easing.OutQuint);
additive.Expire(true);
Scheduler.AddDelayed(beginTrail, HyperDashing ? 25 : 50);
}
private void updateState(CatcherAnimationState state)
{
if (CurrentState == state)
return;
CurrentState = state;
updateCatcher();
}
private CatcherTrailSprite createAdditiveSprite()
{
var tex = (currentCatcher.Drawable as TextureAnimation)?.CurrentFrame ?? ((Sprite)currentCatcher.Drawable).Texture;
var sprite = new CatcherTrailSprite(tex)
{
Anchor = Anchor,
Scale = Scale,
Colour = HyperDashing ? Color4.Red : Color4.White,
Blending = BlendingParameters.Additive,
RelativePositionAxes = RelativePositionAxes,
Position = Position
};
AdditiveTarget?.Add(sprite);
return sprite;
}
private void removeFromPlateWithTransform(DrawableHitObject fruit, Action<DrawableHitObject> action)
{
if (ExplodingFruitTarget != null)
{
fruit.Anchor = Anchor.TopLeft;
fruit.Position = caughtFruit.ToSpaceOfOtherDrawable(fruit.DrawPosition, ExplodingFruitTarget);
if (!caughtFruit.Remove(fruit))
// we may have already been removed by a previous operation (due to the weird OnLoadComplete scheduling).
// this avoids a crash on potentially attempting to Add a fruit to ExplodingFruitTarget twice.
return;
ExplodingFruitTarget.Add(fruit);
}
var actionTime = Clock.CurrentTime;
fruit.ApplyCustomUpdateState += onFruitOnApplyCustomUpdateState;
onFruitOnApplyCustomUpdateState(fruit, fruit.State.Value);
void onFruitOnApplyCustomUpdateState(DrawableHitObject o, ArmedState state)
{
using (fruit.BeginAbsoluteSequence(actionTime))
action(fruit);
fruit.Expire();
}
}
}
}