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1using System.Drawing;
2using System.Numerics;
3
4namespace Peridot;
5
6/// <summary>
7/// Represetns a RGBA color with floating point values.
8/// All components must be between 0.0 and 1.0.
9/// </summary>
10public partial struct ColorF : IEquatable<ColorF>
11{
12 private Vector4 m_rgba;
13
14 /// <summary>
15 /// Constructs a new ColorF from components.
16 /// </summary>
17 /// <param name="r">Red component.</param>
18 /// <param name="g">Green component.</param>
19 /// <param name="b">Blue component.</param>
20 /// <param name="a">Alpha component.</param>
21 public ColorF(float r, float g, float b, float a)
22 {
23 m_rgba = new(r, g, b, a);
24 }
25
26 /// <summary>
27 /// Constructs a new ColorF from a Color.
28 /// </summary>
29 /// <param name="color">Color.</param>
30 public ColorF(Color color)
31 {
32 m_rgba = new Vector4(color.R, color.G, color.B, color.A) * (1f / 255f);
33 }
34
35 /// <summary>
36 /// Constructs a new ColorF from a Vector4.
37 /// </summary>
38 /// <param name="color">Color.</param>
39 public ColorF(Vector4 color)
40 {
41 m_rgba = color;
42 }
43
44 /// <summary>
45 /// Constructs a new gray color.
46 /// </summary>
47 /// <param name="grayColor"></param>
48 public ColorF(float grayColor)
49 {
50 m_rgba = new Vector4(grayColor, grayColor, grayColor, 1f);
51 }
52
53 /// <summary>
54 /// Constructs a new gray color.
55 /// </summary>
56 /// <param name="grayColor"></param>
57 /// <param name="alpha"></param>
58 public ColorF(float grayColor, float alpha)
59 {
60 m_rgba = new Vector4(grayColor, grayColor, grayColor, alpha);
61 }
62
63 /// <summary>
64 /// The red color component.
65 /// </summary>
66 public float R { get => m_rgba.X; set => m_rgba.X = value; }
67
68 /// <summary>
69 /// The green color component.
70 /// </summary>
71 public float G { get => m_rgba.Y; set => m_rgba.Y = value; }
72
73 /// <summary>
74 /// The blue color component.
75 /// </summary>
76 public float B { get => m_rgba.Z; set => m_rgba.Z = value; }
77
78 /// <summary>
79 /// The alpha color component.
80 /// </summary>
81 public float A { get => m_rgba.W; set => m_rgba.W = value; }
82
83 /// <summary>
84 /// Gets or sets components RGBA as a <see cref="Vector4"/>.
85 /// </summary>
86 public Vector4 AsVector { get => m_rgba; set => m_rgba = value; }
87
88 /// <inheritdoc/>
89 public bool Equals(ColorF other)
90 {
91 return m_rgba.Equals(other.m_rgba);
92 }
93
94 /// <inheritdoc/>
95 public override bool Equals(object? obj)
96 {
97 return obj != null && obj is ColorF other && Equals(other);
98 }
99
100 /// <inheritdoc/>
101 public override int GetHashCode()
102 {
103 return m_rgba.GetHashCode();
104 }
105
106 /// <inheritdoc/>
107 public override string ToString()
108 {
109 return $"{{R: {R}, G: {G}, B: {B}, A: {A}}}";
110 }
111}