90 lines
3.4 KiB
C#
90 lines
3.4 KiB
C#
// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
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#if USE_LARGE_WORLDS
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using Real = System.Double;
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#else
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using Real = System.Single;
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#endif
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using FlaxEngine;
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namespace FlaxEditor.Viewport.Cameras
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{
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/// <summary>
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/// Base class for <see cref="EditorViewport"/> view controllers.
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/// </summary>
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/// <seealso cref="FlaxEditor.Viewport.Cameras.IViewportCamera" />
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[HideInEditor]
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public abstract class ViewportCamera : IViewportCamera
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{
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private EditorViewport _viewport;
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/// <summary>
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/// Gets the parent viewport.
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/// </summary>
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public EditorViewport Viewport
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{
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get => _viewport;
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internal set => _viewport = value;
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}
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/// <summary>
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/// Gets a value indicating whether the viewport camera uses movement speed.
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/// </summary>
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public virtual bool UseMovementSpeed => true;
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/// <summary>
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/// Sets view orientation and position to match the arc ball camera style view for the given target object bounds.
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/// </summary>
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/// <param name="objectBounds">The target object bounds.</param>
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/// <param name="marginDistanceScale">The margin distance scale of the orbit radius.</param>
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public void SetArcBallView(BoundingBox objectBounds, float marginDistanceScale = 2.0f)
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{
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SetArcBallView(BoundingSphere.FromBox(objectBounds), marginDistanceScale);
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}
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/// <summary>
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/// Sets view orientation and position to match the arc ball camera style view for the given target object bounds.
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/// </summary>
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/// <param name="objectBounds">The target object bounds.</param>
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/// <param name="marginDistanceScale">The margin distance scale of the orbit radius.</param>
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public void SetArcBallView(BoundingSphere objectBounds, float marginDistanceScale = 2.0f)
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{
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SetArcBallView(new Quaternion(-0.08f, -0.92f, 0.31f, -0.23f), objectBounds.Center, objectBounds.Radius * marginDistanceScale);
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}
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/// <summary>
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/// Sets view orientation and position to match the arc ball camera style view for the given orbit radius.
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/// </summary>
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/// <param name="orbitRadius">The orbit radius.</param>
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public void SetArcBallView(float orbitRadius)
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{
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SetArcBallView(new Quaternion(-0.08f, -0.92f, 0.31f, -0.23f), Vector3.Zero, orbitRadius);
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}
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/// <summary>
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/// Sets view orientation and position to match the arc ball camera style view.
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/// </summary>
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/// <param name="orientation">The view rotation.</param>
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/// <param name="orbitCenter">The orbit center location.</param>
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/// <param name="orbitRadius">The orbit radius.</param>
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public virtual void SetArcBallView(Quaternion orientation, Vector3 orbitCenter, Real orbitRadius)
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{
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// Rotate
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Viewport.ViewOrientation = orientation;
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// Move camera to look at orbit center point
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Vector3 localPosition = Viewport.ViewDirection * (-1 * orbitRadius);
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Viewport.ViewPosition = orbitCenter + localPosition;
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}
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/// <inheritdoc />
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public virtual void Update(float deltaTime)
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{
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}
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/// <inheritdoc />
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public abstract void UpdateView(float dt, ref Vector3 moveDelta, ref Float2 mouseDelta, out bool centerMouse);
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}
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}
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