76 lines
2.4 KiB
C#
76 lines
2.4 KiB
C#
// Copyright (c) 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.SceneGraph.Actors
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{
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/// <summary>
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/// Scene tree node for <see cref="SpriteRender"/> actor type.
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/// </summary>
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/// <seealso cref="ActorNode" />
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[HideInEditor]
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public sealed class SpriteRenderNode : ActorNode
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{
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/// <inheritdoc />
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public SpriteRenderNode(Actor actor)
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: base(actor)
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{
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}
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/// <inheritdoc />
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public override bool RayCastSelf(ref RayCastData ray, out Real distance, out Vector3 normal)
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{
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SpriteRender sprite = (SpriteRender)Actor;
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Float3 viewPosition = (Float3)ray.View.Position; // TODO: large-worlds
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Float3 viewDirection = ray.View.Direction;
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Matrix m1, m2, m3, world;
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var size = sprite.Size;
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Matrix.Scaling(size.X, size.Y, 1.0f, out m1);
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var transform = sprite.Transform;
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if (sprite.FaceCamera)
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{
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var up = Float3.Up;
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Float3 translation = transform.Translation;
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Matrix.Billboard(ref translation, ref viewPosition, ref up, ref viewDirection, out m2);
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Matrix.Multiply(ref m1, ref m2, out m3);
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Matrix.Scaling(ref transform.Scale, out m1);
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Matrix.Multiply(ref m1, ref m3, out world);
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}
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else
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{
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transform.GetWorld(out m2);
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Matrix.Multiply(ref m1, ref m2, out world);
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}
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OrientedBoundingBox bounds;
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bounds.Extents = Vector3.Half;
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world.Decompose(out bounds.Transformation);
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normal = -ray.Ray.Direction;
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return bounds.Intersects(ref ray.Ray, out distance);
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}
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/// <inheritdoc />
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public override void PostSpawn()
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{
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base.PostSpawn();
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if (Actor.HasPrefabLink)
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{
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return;
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}
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// Setup for default values
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var sprite = (SpriteRender)Actor;
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sprite.Material = FlaxEngine.Content.LoadAsyncInternal<MaterialBase>(EditorAssets.DefaultSpriteMaterial);
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sprite.Image = FlaxEngine.Content.LoadAsyncInternal<Texture>(EditorAssets.FlaxIconTexture);
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}
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}
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}
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