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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 782 | chris | 1 | using System; |
| 2 | using System.Collections.Generic; |
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| 3 | using System.Linq; |
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| 4 | using System.Text; |
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| 5 | using System.Threading.Tasks; |
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| 6 | |||
| 7 | namespace BauzoidNET.math |
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| 8 | { |
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| 787 | chris | 9 | public class Vector4 |
| 782 | chris | 10 | { |
| 11 | public float x; |
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| 12 | public float y; |
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| 13 | public float z; |
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| 14 | public float w; |
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| 15 | |||
| 16 | public Vector4() |
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| 17 | { |
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| 18 | } |
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| 19 | |||
| 20 | public Vector4(float _x, float _y, float _z, float _w) |
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| 21 | { |
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| 22 | x = _x; |
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| 23 | y = _y; |
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| 24 | z = _z; |
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| 25 | w = _w; |
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| 26 | } |
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| 27 | |||
| 28 | public void normalize() |
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| 29 | { |
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| 30 | float len = length(); |
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| 31 | if (len != 0.0f) |
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| 32 | { |
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| 33 | x /= len; |
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| 34 | y /= len; |
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| 35 | z /= len; |
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| 36 | w /= len; |
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| 37 | } |
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| 38 | } |
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| 39 | |||
| 40 | public float length() |
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| 41 | { |
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| 42 | float squared = squaredLength(); |
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| 43 | return (float)Math.Sqrt(squared); |
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| 44 | } |
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| 45 | |||
| 46 | public void setLength(float newLength) |
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| 47 | { |
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| 48 | normalize(); |
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| 49 | x *= newLength; |
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| 50 | y *= newLength; |
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| 51 | z *= newLength; |
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| 52 | w *= newLength; |
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| 53 | } |
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| 54 | |||
| 55 | public bool isZero() |
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| 56 | { |
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| 57 | return ((x == 0.0f) && (y == 0.0f) && (z == 0.0f) && (w == 0.0f)); |
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| 58 | } |
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| 59 | |||
| 60 | public float squaredLength() |
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| 61 | { |
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| 62 | return (x * x + y * y + z * z * w * w); |
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| 63 | } |
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| 64 | |||
| 65 | public void addVector(Vector4 v) |
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| 66 | { |
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| 67 | x += v.x; |
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| 68 | y += v.y; |
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| 69 | z += v.z; |
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| 70 | w += v.w; |
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| 71 | } |
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| 72 | |||
| 73 | public void subtractVector(Vector4 v) |
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| 74 | { |
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| 75 | x -= v.x; |
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| 76 | y -= v.y; |
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| 77 | z -= v.z; |
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| 78 | w -= v.w; |
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| 79 | } |
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| 80 | |||
| 81 | public float dotProduct(Vector4 v) |
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| 82 | { |
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| 83 | return dotProduct(this, v); |
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| 84 | } |
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| 85 | |||
| 86 | static public float dotProduct(Vector4 a, Vector4 b) |
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| 87 | { |
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| 88 | return (a.x * b.x + a.y * b.y + a.z * b.z + a.w * b.w); |
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| 89 | } |
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| 90 | |||
| 91 | static public float distance(Vector4 a, Vector4 b) |
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| 92 | { |
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| 93 | Vector4 c = new Vector4(b.x - a.x, b.y - a.y, b.z - a.z, b.w - a.w); |
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| 94 | return c.length(); |
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| 95 | } |
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| 96 | |||
| 97 | /** Return a copy of this Vector4. */ |
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| 98 | public Vector4 copy() |
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| 99 | { |
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| 100 | return new Vector4(x, y, z, w); |
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| 101 | } |
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| 102 | |||
| 811 | chris | 103 | |
| 104 | /// <summary> |
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| 105 | /// Return the largest component of the Vector3. |
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| 106 | /// </summary> |
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| 107 | public float max() |
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| 108 | { |
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| 109 | return Math.Max(x, Math.Max(y, Math.Max(z, w))); |
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| 110 | } |
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| 111 | |||
| 112 | /// <summary> |
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| 113 | /// Return the smallest component of the Vector3. |
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| 114 | /// </summary> |
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| 115 | public float min() |
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| 116 | { |
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| 117 | return Math.Min(x, Math.Min(y, Math.Min(z, w))); |
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| 118 | } |
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| 119 | |||
| 782 | chris | 120 | } |
| 121 | } |