wehub-resource-sync
91 lines
3.6 KiB
C#
91 lines
3.6 KiB
C#
using T3.Core.Utils;
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using T3.Core.Utils.Geometry;
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namespace Lib.io.input;
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[Guid("eff2ffff-dc39-4b90-9b1c-3c0a9a0108c6")]
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internal sealed class MouseInput : Instance<MouseInput>
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{
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[Output(Guid = "CDC87CE1-FAB8-4B96-9137-9965E064BFA3", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<Vector2> Position = new();
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[Output(Guid = "78CAABCF-9C3B-4E50-9D80-BDCBABAEB003", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<bool> IsLeftButtonDown = new();
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[Output(Guid = "BE90EED3-26BF-4DC3-9771-073C04D359BC", DirtyFlagTrigger = DirtyFlagTrigger.Animated)]
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public readonly Slot<Vector3> Position3d = new();
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public MouseInput()
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{
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Position.UpdateAction += Update;
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Position3d.UpdateAction += Update;
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IsLeftButtonDown.UpdateAction += Update;
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}
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private void Update(EvaluationContext context)
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{
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var mode = OutputMode.GetEnumValue<OutputModes>(context);
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var scale = Scale.GetValue(context);
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var aspectRatio = (float)context.RequestedResolution.Width / context.RequestedResolution.Height;
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var lastPosition = T3.SystemUi.MouseInput.LastPosition;
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switch (mode)
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{
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case OutputModes.Normalized:
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Position.Value = lastPosition;
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Position3d.Value = new Vector3(lastPosition.X, lastPosition.Y, 0);
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break;
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case OutputModes.SignedPosition:
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Position.Value = (lastPosition - new Vector2(0.5f, 0.5f)) * new Vector2(aspectRatio, -1) * scale;
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Position3d.Value = new Vector3(lastPosition.X, lastPosition.Y, 0);
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break;
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case OutputModes.OnWorldXYPlane:
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case OutputModes.OnWorldFloorPlane:
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{
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Matrix4x4.Invert(context.CameraToClipSpace, out var clipSpaceToCamera);
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Matrix4x4.Invert(context.WorldToCamera, out var cameraToWorld);
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var clipSpaceToWorld = clipSpaceToCamera * cameraToWorld;
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var posInClip = (lastPosition - new Vector2(0.5f, 0.5f)) * new Vector2(2, -2);
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var posInWorld = GraphicsMath.TransformCoordinate(new Vector3(posInClip, 0f), clipSpaceToWorld);
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var targetInWorld = GraphicsMath.TransformCoordinate(new Vector3(posInClip, 1f), clipSpaceToWorld);
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var ray = new Ray(posInWorld, targetInWorld - posInWorld);
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var planeNormal = mode == OutputModes.OnWorldXYPlane ? Vector3.UnitZ : Vector3.UnitY;
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var xyPlane = PlaneExtensions.CreateFromPointAndNormal(Vector3.Zero, planeNormal);
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if (xyPlane.Intersects(ray, out Vector3 intersectionPoint))
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{
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Position.Value = new Vector2(intersectionPoint.X, intersectionPoint.Y);
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Position3d.Value = intersectionPoint;
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}
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break;
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}
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default:
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throw new ArgumentOutOfRangeException(nameof(mode));
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}
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IsLeftButtonDown.Value = T3.SystemUi.MouseInput.IsLeftButtonDown;
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Position3d.DirtyFlag.Clear();
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Position.DirtyFlag.Clear();
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IsLeftButtonDown.DirtyFlag.Clear();
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}
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[Input(Guid = "49775CC2-35B7-4C9F-A502-59FE8FBBE2A7")]
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public readonly InputSlot<bool> DoUpdate = new();
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[Input(Guid = "1327525C-716C-43E4-A5D1-58CF35440462", MappedType = typeof(OutputModes))]
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public readonly InputSlot<int> OutputMode = new();
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[Input(Guid = "6B1E81BD-2430-4439-AD0C-859B2433C38B")]
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public readonly InputSlot<float> Scale = new();
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private enum OutputModes
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{
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Normalized,
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SignedPosition,
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OnWorldXYPlane,
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OnWorldFloorPlane
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}
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} |