h1or4dme8/osu-lazer
1
0
Fork 0
mirror of https://github.com/ppy/osu.git synced 2025-01-12 17:43:05 +08:00
Code Issues Releases Wiki Activity

Correctly account for blueprint origins

Browse Source
This commit is contained in:
Dean Herbert 2020-05-21 15:15:24 +09:00
parent 776b842fdb
commit ce8b6b7383
1 changed files with 47 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
osu.Game.Rulesets.Mania/UI/Column.cs
View File

@ -17,6 +17,7 @@ using osu.Game.Rulesets.UI.Scrolling;
using osu.Game.Skinning;
using osuTK;
using osu.Game.Rulesets.Mania.Beatmaps;
using osu.Game.Rulesets.Mania.Objects.Drawables.Pieces;
namespace osu.Game.Rulesets.Mania.UI
{
@ -145,10 +146,21 @@ namespace osu.Game.Rulesets.Mania.UI
{
var pos = ScrollingInfo.Algorithm.PositionAt(time, Time.Current, ScrollingInfo.TimeRange.Value, HitObjectContainer.DrawHeight);
if (ScrollingInfo.Direction.Value == ScrollingDirection.Down)
switch (ScrollingInfo.Direction.Value)
{
// as explained above
pos = HitObjectContainer.DrawHeight - pos;
case ScrollingDirection.Down:
// We're dealing with screen coordinates in which the position decreases towards the centre of the screen resulting in an increase in start time.
// The scrolling algorithm instead assumes a top anchor meaning an increase in time corresponds to an increase in position,
// so when scrolling downwards the coordinates need to be flipped.
pos = HitObjectContainer.DrawHeight - pos;
// Blueprints are centred on the mouse position, such that the hitobject position is anchored at the top or bottom of the blueprint depending on the scroll direction.
pos -= DefaultNotePiece.NOTE_HEIGHT / 2;
break;
case ScrollingDirection.Up:
pos += DefaultNotePiece.NOTE_HEIGHT / 2;
break;
}
return HitObjectContainer.ToScreenSpace(new Vector2(HitObjectContainer.DrawWidth / 2, pos));
@ -159,15 +171,42 @@ namespace osu.Game.Rulesets.Mania.UI
// convert to local space of column so we can snap and fetch correct location.
Vector2 localPosition = HitObjectContainer.ToLocalSpace(screenSpacePosition);
if (ScrollingInfo.Direction.Value == ScrollingDirection.Down)
switch (ScrollingInfo.Direction.Value)
{
// We're dealing with screen coordinates in which the position decreases towards the centre of the screen resulting in an increase in start time.
// The scrolling algorithm instead assumes a top anchor meaning an increase in time corresponds to an increase in position,
// so when scrolling downwards the coordinates need to be flipped.
localPosition.Y = HitObjectContainer.DrawHeight - localPosition.Y;
case ScrollingDirection.Down:
// as above
localPosition.Y = HitObjectContainer.DrawHeight - localPosition.Y;
break;
}
// offset for the fact that blueprints are centered, as above.
localPosition.Y -= DefaultNotePiece.NOTE_HEIGHT / 2;
return ScrollingInfo.Algorithm.TimeAt(localPosition.Y, Time.Current, ScrollingInfo.TimeRange.Value, HitObjectContainer.DrawHeight);
}
/// <summary>
/// Converts a mouse position to a hitobject position.
/// </summary>
/// <remarks>
/// Blueprints are centred on the mouse position, such that the hitobject position is anchored at the top or bottom of the blueprint depending on the scroll direction.
/// </remarks>
/// <param name="mousePosition">The mouse position.</param>
/// <returns>The resulting hitobject position, acnhored at the top or bottom of the blueprint depending on the scroll direction.</returns>
private Vector2 mouseToHitObjectPosition(Vector2 mousePosition)
{
switch (ScrollingInfo.Direction.Value)
{
case ScrollingDirection.Up:
mousePosition.Y -= DefaultNotePiece.NOTE_HEIGHT / 2;
break;
case ScrollingDirection.Down:
mousePosition.Y += DefaultNotePiece.NOTE_HEIGHT / 2;
break;
}
return mousePosition;
}
}
}