feat(widgets): Create ProgressBar and Slider

Author: Alexis Huvier

SharpEngine/Widget/ProgressBar.cs

@@ -0,0 +1,63 @@
+using SharpEngine.Math;
+using SharpEngine.Renderer;
+using SharpEngine.Utils;
+
+namespace SharpEngine.Widget;
+
+/// <summary>
+/// Class which represents ProgressBar
+/// </summary>
+public class ProgressBar: Widget
+{
+    private float _value;
+    /// <summary>
+    /// Value of Bar (0 to 100)
+    /// </summary>
+    public float Value
+    {
+        get => _value;
+        set => _value = MathHelper.Clamp(value, 0, 100);
+    }
+    
+    /// <summary>
+    /// Size of Bar
+    /// </summary>
+    public Vec2 Size { get; set; }
+    
+    /// <summary>
+    /// Color of Bar
+    /// </summary>
+    public Color Color { get; set; }
+
+    /// <summary>
+    /// Create ProgressBar
+    /// </summary>
+    /// <param name="position">Position</param>
+    /// <param name="size">Size (Vec2(150, 60))</param>
+    /// <param name="color">Color (Color.Green)</param>
+    /// <param name="value">Value (0)</param>
+    /// <param name="zLayer">ZLayer (0)</param>
+    public ProgressBar(Vec2 position, Vec2? size = null, Color? color = null, float value = 0, int zLayer = 0) : base(
+        position, zLayer)
+    {
+        Size = size ?? new Vec2(150, 60);
+        Color = color ?? Color.Green;
+        Value = value;
+    }
+
+    /// <inheritdoc />
+    public override void Draw()
+    {
+        base.Draw();
+        
+        if(!Displayed || Size == Vec2.Zero) return;
+
+        var position = RealPosition;
+        SERender.DrawRectangle(new Rect(position, Size), Size / 2, 0, Color.Black, InstructionSource.UI,
+            ZLayer);
+        SERender.DrawRectangle(new Rect(position, Size - 4), (Size - 4) / 2, 0, Color.White, InstructionSource.UI,
+            ZLayer + 0.00001f);
+        SERender.DrawRectangle(new Rect(position, (Size.X - 8) * Value / 100, Size.Y - 8), (Size - 8) / 2, 0, Color,
+            InstructionSource.UI, ZLayer + 0.00002f);
+    }
+}

SharpEngine/Widget/Slider.cs

@@ -0,0 +1,97 @@
+using System;
+using SharpEngine.Manager;
+using SharpEngine.Math;
+using SharpEngine.Renderer;
+using SharpEngine.Utils;
+using SharpEngine.Utils.EventArgs;
+using SharpEngine.Utils.Input;
+
+namespace SharpEngine.Widget;
+
+/// <summary>
+/// Class which represents Slider
+/// </summary>
+public class Slider: Widget
+{
+    private float _value;
+    /// <summary>
+    /// Value of Slider (0 to 100)
+    /// </summary>
+    public float Value
+    {
+        get => _value;
+        set => _value = MathHelper.Clamp(value, 0, 100);
+    }
+    
+    /// <summary>
+    /// Size of Slider
+    /// </summary>
+    public Vec2 Size { get; set; }
+    
+    /// <summary>
+    /// Color of Slider
+    /// </summary>
+    public Color Color { get; set; }
+    
+    /// <summary>
+    /// Event trigger when value is changed
+    /// </summary>
+    public event EventHandler<ValueEventArgs<float>>? ValueChanged; 
+
+    /// <summary>
+    /// Create Slider
+    /// </summary>
+    /// <param name="position">Position</param>
+    /// <param name="size">Size (Vec2(150, 60))</param>
+    /// <param name="color">Color (Color.Green)</param>
+    /// <param name="value">Value (0)</param>
+    /// <param name="zLayer">ZLayer (0)</param>
+    public Slider(Vec2 position, Vec2? size = null, Color? color = null, float value = 0, int zLayer = 0) : base(
+        position, zLayer)
+    {
+        Size = size ?? new Vec2(150, 60);
+        Color = color ?? Color.Green;
+        Value = value;
+    }
+
+    /// <inheritdoc />
+    public override void Update(float delta)
+    {
+        base.Update(delta);
+
+        if (InputManager.IsMouseButtonDown(MouseButton.Left))
+        {
+            var position = RealPosition - Size / 2;
+            if(!InputManager.IsMouseInRectangle(new Rect(position, Size))) return;
+
+            var barSize = Size.X;
+            var point = InputManager.GetMousePosition().X - position.X;
+            var temp = Value;
+            Value = (int)System.Math.Round(point * 100 / barSize, MidpointRounding.AwayFromZero);
+            if (System.Math.Abs(temp - Value) > Internal.FloatTolerance)
+            {
+                ValueChanged?.Invoke(this, new ValueEventArgs<float>
+                {
+                    OldValue = temp,
+                    NewValue = Value
+                });
+            }
+        }
+    }
+
+    /// <inheritdoc />
+    public override void Draw()
+    {
+        base.Draw();
+        
+        if(!Displayed || Size == Vec2.Zero) return;
+
+        var position = RealPosition;
+        SERender.DrawRectangle(new Rect(position, Size), Size / 2, 0, Color.Black, InstructionSource.UI,
+            ZLayer);
+        SERender.DrawRectangle(new Rect(position, Size - 4), (Size - 4) / 2, 0, Color.White, InstructionSource.UI,
+            ZLayer + 0.00001f);
+        SERender.DrawRectangle(new Rect(position, (Size.X - 8) * Value / 100, Size.Y - 8), (Size - 8) / 2, 0, Color,
+            InstructionSource.UI, ZLayer + 0.00002f);
+    }
+}