34 lines
1.3 KiB
C#
34 lines
1.3 KiB
C#
using Robust.Client.Graphics.Drawing;
|
|
using Robust.Client.Interfaces.GameObjects.Components;
|
|
using Robust.Client.Interfaces.Graphics;
|
|
using Robust.Shared.Maths;
|
|
using System;
|
|
|
|
namespace Robust.Client.UserInterface.Controls
|
|
{
|
|
public class CooldownGraphic : Control
|
|
{
|
|
public float Fraction { get; set; }
|
|
|
|
protected override void Draw(DrawingHandleScreen handle)
|
|
{
|
|
const int maxSegments = 64;
|
|
const float segment = MathHelper.TwoPi / maxSegments;
|
|
|
|
var segments = (int)Math.Max(2, Math.Ceiling(maxSegments * Fraction)); // ensure that we always have 3 vertices
|
|
var max = MathHelper.TwoPi * Fraction;
|
|
var radius = (Math.Min(SizeBox.Height, SizeBox.Width) / 2) * 0.875f; // 28/32 = 0.875 - 2 pixels inwards from the edge
|
|
|
|
Span<Vector2> vertices = stackalloc Vector2[segments + 1];
|
|
vertices[0] = PixelPosition + SizeBox.Center;
|
|
for (int i = 0; i < segments; i++)
|
|
{
|
|
var angle = MathHelper.Pi + Math.Min(max, segment * i);
|
|
vertices[i + 1] = vertices[0] + new Vector2((float) Math.Sin(angle) * radius, (float) Math.Cos(angle) * radius);
|
|
}
|
|
|
|
handle.DrawPrimitives(DrawPrimitiveTopology.TriangleFan, vertices, new Color(0.3f, 0.3f, 0.4f, 0.5f));
|
|
}
|
|
}
|
|
}
|