Re-organize all projects (#4166)

Content.Client/Cooldown/CooldownGraphic.cs

@@ -0,0 +1,55 @@
+using System;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface;
+using Robust.Shared.IoC;
+using Robust.Shared.Maths;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client.Cooldown
+{
+
+    public class CooldownGraphic : Control
+    {
+
+        [Dependency] private readonly IPrototypeManager _protoMan = default!;
+
+        private readonly ShaderInstance _shader;
+
+        public CooldownGraphic()
+        {
+            IoCManager.InjectDependencies(this);
+            _shader = _protoMan.Index<ShaderPrototype>("CooldownAnimation").InstanceUnique();
+        }
+
+        /// <summary>
+        ///     Progress of the cooldown animation.
+        ///     Possible values range from 1 to -1, where 1 to 0 is a depleting circle animation and 0 to -1 is a blink animation.
+        /// </summary>
+        public float Progress { get; set; }
+
+        protected override void Draw(DrawingHandleScreen handle)
+        {
+            Span<float> x = new float[10];
+            Color color;
+
+            var lerp = 1f - MathF.Abs(Progress); // for future bikeshedding purposes
+
+            if (Progress >= 0f)
+            {
+                var hue = (5f / 18f) * lerp;
+                color = Color.FromHsv((hue, 0.75f, 0.75f, 0.50f));
+            }
+            else
+            {
+                var alpha = MathHelper.Clamp(0.5f * lerp, 0f, 0.5f);
+                color = new Color(1f, 1f, 1f, alpha);
+            }
+
+            _shader.SetParameter("progress", Progress);
+            handle.UseShader(_shader);
+            handle.DrawRect(PixelSizeBox, color);
+        }
+
+    }
+
+}