Initial commit

code/EntityComponents/Lucker/Cameras/RTSCamera.cs

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+using Sandbox;
+using System;
+using System.Linq;
+
+namespace LuckerGame.Components.Lucker.Cameras;
+
+/// <summary>
+/// A top down camera that can be 
+/// </summary>
+public partial class RTSCamera : AbstractCamera, ISingletonComponent
+{
+	private const float MaxDistance = 400f;
+	private const float MinDistance = 200f;
+	private const float Speed = 4f;
+	protected float WheelSpeed => 5f;
+	protected Vector2 DistanceClamp => new( MinDistance, MaxDistance );
+	protected float CameraDistance = MinDistance;
+	protected float TargetDistance = MinDistance;
+
+	private Vector3 CameraPositionOffset = Vector3.Zero;
+
+	protected override void UpdateCameraParameters()
+	{
+		CameraPosition = Entity.Position + CameraPositionOffset;
+		CameraRotation = Rotation.FromPitch( -270 );
+		FieldOfView = 70f;
+		FirstPersonViewer = null;
+		CameraPosition = CameraPosition.WithZ( CameraDistance );
+		SoundSource = new Transform { Position = CameraPosition };
+	}
+
+	public override void BuildInput()
+	{
+		// Zooming in and out
+		var wheel = Input.MouseWheel;
+		if ( wheel != 0 )
+		{
+			TargetDistance -= wheel * WheelSpeed;
+			TargetDistance = TargetDistance.Clamp( DistanceClamp.x, DistanceClamp.y );
+		}
+
+		CameraDistance = CameraDistance.LerpTo( TargetDistance, Time.Delta * 10f );
+		
+		// Moving
+		CameraPositionOffset += Input.AnalogMove * Speed;
+	}
+}