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More documentation and constants

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This commit is contained in:
Dean Herbert 2017-06-19 18:41:11 +09:00
parent 8c063fe2b8
commit a1b9499480
1 changed files with 27 additions and 6 deletions
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33
osu.Game/Screens/Menu/LogoVisualisation.cs
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@ -23,16 +23,36 @@ namespace osu.Game.Screens.Menu
{
private readonly Bindable<WorkingBeatmap> beatmap = new Bindable<WorkingBeatmap>();
/// <summary>
/// The number of bars to jump each update iteration.
/// </summary>
private const int index_change = 5;
/// <summary>
/// The maximum length of each bar in the visualiser. Will be reduced when kiai is not activated.
/// </summary>
private const float bar_length = 600;
/// <summary>
/// The number of bars in one rotation of the visualiser.
/// </summary>
private const int bars_per_visualizer = 200;
private const float visualizers = 5;
/// <summary>
/// How many times we should stretch around the circumference (overlapping overselves).
/// </summary>
private const float visualiser_rounds = 5;
/// <summary>
/// How much should each bar go down each milisecond (based on a full bar)
/// </summary>
private const float decay_per_milisecond = 0.0024f;
/// <summary>
/// Number of milliseconds between each amplitude update.
/// </summary>
private const float time_between_updates = 50;
private int indexOffset;
public Color4 AccentColour { get; set; }
@ -59,7 +79,7 @@ namespace osu.Game.Screens.Menu
shader = shaders?.Load(VertexShaderDescriptor.TEXTURE_2, FragmentShaderDescriptor.TEXTURE_ROUNDED);
}
private void ensureAmplitudes()
private void updateAmplitudes()
{
float[] temporalAmplitudes = beatmap.Value?.Track?.CurrentAmplitudes.FrequencyAmplitudes ?? new float[256];
@ -79,14 +99,15 @@ namespace osu.Game.Screens.Menu
frequencyAmplitudes[i] = frequencyAmplitudes[(i + index_change) % bars_per_visualizer];
}
}
indexOffset = (indexOffset + index_change) % bars_per_visualizer;
Scheduler.AddDelayed(ensureAmplitudes, 50);
Scheduler.AddDelayed(updateAmplitudes, time_between_updates);
}
protected override void LoadComplete()
{
base.LoadComplete();
ensureAmplitudes();
updateAmplitudes();
}
protected override void Update()
@ -152,11 +173,11 @@ namespace osu.Game.Screens.Menu
if (AudioData != null)
{
for (int j = 0; j < visualizers; j++)
for (int j = 0; j < visualiser_rounds; j++)
{
for (int i = 0; i < bars_per_visualizer; i++)
{
float rotation = MathHelper.DegreesToRadians(i / (float)bars_per_visualizer * 360 + j * 360 / visualizers);
float rotation = MathHelper.DegreesToRadians(i / (float)bars_per_visualizer * 360 + j * 360 / visualiser_rounds);
float rotationCos = (float)Math.Cos(rotation);
float rotationSin = (float)Math.Sin(rotation);
//taking the cos and sin to the 0..1 range