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Wrote a very basic camera and unit tests.

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This commit is contained in:
Harrison Deng 2020-02-23 01:34:41 -05:00
parent e2c2b0adc0
commit bb44e4fee3
2 changed files with 116 additions and 0 deletions
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68
RecrownedGTK.Tests/Graphics/CameraTest.cs Normal file
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using NUnit.Framework;
using RecrownedGTK.Graphics;
using OpenTK;
using System;
namespace RecrownedGTK.Tests.Graphics {
[TestFixture]
public class CameraTest {
Camera camera;
Vector4 position;
[SetUp]
public void Setup() {
camera = new Camera();
position = new Vector4();
position.X = 1;
position.W = 1;
}
[Test]
public void TestCameraTranslation() {
Console.WriteLine("Camera Transform Matrix Before:");
Console.WriteLine(camera.Transform);
Console.WriteLine("Vector Before:");
Console.WriteLine(position);
camera.Translate = new Vector3(1, 1, 0);
Console.WriteLine("Matrix After:");
Console.WriteLine(camera.Transform);
Vector4 result = camera.Transform * position;
Console.WriteLine("Vector After:");
Console.WriteLine(result);
Vector4 expected = new Vector4(2, 1, 0, 1);
Assert.AreEqual(expected, result);
}
[Test]
public void TestCameraRotation() {
Console.WriteLine("Camera Transform Matrix Before:");
Console.WriteLine(camera.Transform);
Console.WriteLine("Vector Before:");
Console.WriteLine(position);
camera.Rotation = new Vector3(0, 0, MathHelper.DegreesToRadians(90f));
Console.WriteLine("Matrix After:");
Console.WriteLine(camera.Transform);
Vector4 result = camera.Transform * position;
result.X = (float) Math.Round((float) result.X, 4);
Console.WriteLine("Vector After:");
Console.WriteLine(result);
Vector4 expected = new Vector4(0, 1, 0, 1);
Assert.AreEqual(expected, result);
}
[Test]
public void TestCameraScale() {
Console.WriteLine("Camera Transform Matrix Before:");
Console.WriteLine(camera.Transform);
Console.WriteLine("Vector Before:");
Console.WriteLine(position);
camera.Scale = new Vector3(2f);
Console.WriteLine("Matrix After:");
Console.WriteLine(camera.Transform);
Vector4 result = camera.Transform * position;
Console.WriteLine("Vector After:");
Console.WriteLine(result);
Vector4 expected = new Vector4(2, 0, 0, 1);
Assert.AreEqual(expected, result);
}
}
}

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RecrownedGTK/Graphics/Camera.cs Normal file
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using OpenTK;
namespace RecrownedGTK.Graphics {
public class Camera {
private Vector3 scale = new Vector3(1f), translate, rotation;
public Vector3 Scale {
get {
return scale;
}
set {
updated = true;
scale = value;
}
}
public Vector3 Translate {
set {
updated = true;
translate = value;
}
}
public Vector3 Rotation {
set {
updated = true;
rotation = value;
}
get {
return rotation;
}
}
private Matrix4 transform;
public Matrix4 Transform {
get {
if (!updated) return transform;
updated = true;
transform =
Matrix4.CreateScale(scale) *
Matrix4.CreateRotationX(rotation.X) *
Matrix4.CreateRotationY(rotation.Y) *
Matrix4.CreateRotationZ(rotation.Z) *
Matrix4.CreateTranslation(translate);
transform = Matrix4.Transpose(transform);
return transform;
}
}
private bool updated;
}
}