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Code Issues Releases Wiki Activity

Move equilateral triangle ratio to constant

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This commit is contained in:
Dean Herbert 2022-11-15 22:20:08 +09:00
parent f27a5f977d
commit 52ecd894db
1 changed files with 8 additions and 3 deletions
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11
osu.Game/Graphics/Backgrounds/Triangles.cs
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@ -26,6 +26,11 @@ namespace osu.Game.Graphics.Backgrounds
private const float triangle_size = 100;
private const float base_velocity = 50;
/// <summary>
/// sqrt(3) / 2
/// </summary>
private const float equilateral_triangle_ratio = 0.866f;
/// <summary>
/// How many screen-space pixels are smoothed over.
/// Same behavior as Sprite's EdgeSmoothness.
@ -149,7 +154,7 @@ namespace osu.Game.Graphics.Backgrounds
parts[i] = newParticle;
float bottomPos = parts[i].Position.Y + triangle_size * parts[i].Scale * 0.866f / DrawHeight;
float bottomPos = parts[i].Position.Y + triangle_size * parts[i].Scale * equilateral_triangle_ratio / DrawHeight;
if (bottomPos < 0)
parts.RemoveAt(i);
}
@ -201,7 +206,7 @@ namespace osu.Game.Graphics.Backgrounds
if (randomY)
{
// since triangles are drawn from the top - allow them to be positioned a bit above the screen
float maxOffset = triangle_size * scale * 0.866f / DrawHeight;
float maxOffset = triangle_size * scale * equilateral_triangle_ratio / DrawHeight;
y = Interpolation.ValueAt(nextRandom(), -maxOffset, 1f, 0f, 1f);
}
@ -290,7 +295,7 @@ namespace osu.Game.Graphics.Backgrounds
foreach (TriangleParticle particle in parts)
{
var offset = triangle_size * new Vector2(particle.Scale * 0.5f, particle.Scale * 0.866f);
var offset = triangle_size * new Vector2(particle.Scale * 0.5f, particle.Scale * equilateral_triangle_ratio);
var triangle = new Triangle(
Vector2Extensions.Transform(particle.Position * size, DrawInfo.Matrix),