Added Camera, Renderer, ... and moved example to sandbox

2026-09-05 21:01:52 +00:00 · 2021-01-09 12:05:05 +01:00
parent 2159f8087a
commit 4054a9b0c2
12 changed files with 670 additions and 167 deletions
@@ -0,0 +1,112 @@
+using System;
+using GlitchyEngine.Math;
+
+namespace GlitchyEngine.Renderer
+{
+	public abstract class Camera
+	{
+		protected Matrix _view;
+		protected Matrix _transform;
+		protected Matrix _projection;
+		protected Matrix _viewProjection;
+
+		protected float _nearPlane;
+		protected float _farPlane;
+
+		protected Vector3 _position;
+		protected Vector3 _rotation;
+
+		/// If true the transform matrix is outdated and needs to be recalculated.
+		protected bool _transformOutdated = true;
+		
+		/// If true the projection matrix is outdated and needs to be recalculated.
+		protected bool _projectionOutdated = true;
+
+		public Matrix Transform => _transform;
+
+		public Matrix View => _view;
+
+		public Matrix Projection => _projection;
+
+		public Matrix ViewProjection => _viewProjection;
+
+		public float NearPlane
+		{
+			get => _nearPlane;
+			set
+			{
+				if(_nearPlane == value)
+					return;
+				
+				_nearPlane = value;
+
+				_projectionOutdated = true;
+			}
+		}
+
+		public float FarPlane
+		{
+			get => _farPlane;
+			set
+			{
+				if(_farPlane == value)
+					return;
+				
+				_farPlane = value;
+
+				_projectionOutdated = true;
+			}
+		}
+
+		public Vector3 Position
+		{
+			get => _position;
+			set
+			{
+				if(_position == value)
+					return;
+
+				_position = value;
+				_transformOutdated = true;
+			}
+		}
+		
+		public Vector3 Rotation
+		{
+			get => _rotation;
+			set
+			{
+				if(_rotation == value)
+					return;
+
+				_rotation = value;
+				_transformOutdated = true;
+			}
+		}
+
+		public void Update()
+		{
+			bool changed = false;
+
+			if(_transformOutdated)
+			{
+				UpdateTransform();
+				_transformOutdated = false;
+				changed = true;
+			}
+
+			if(_projectionOutdated)
+			{
+				UpdateProjection();
+				_projectionOutdated = false;
+				changed = true;
+			}
+
+			if(changed)
+				_viewProjection = _projection * _view;
+		}
+
+		protected abstract void UpdateTransform();
+		protected abstract void UpdateProjection();
+	}
+}