49 lines
1.7 KiB
C#
49 lines
1.7 KiB
C#
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using UnityEngine.InputSystem.Layouts;
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using UnityEngine.InputSystem.LowLevel;
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// Unfortunately, C# (at least up to version 6) does not support enum type constraints. There's
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// ways to work around it in some situations (https://stackoverflow.com/questions/79126/create-generic-method-constraining-t-to-an-enum)
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// but not in a way that will allow us to convert an int to the enum type.
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////TODO: allow this to be stored in less than 32bits
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namespace UnityEngine.InputSystem.Controls
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{
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/// <summary>
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/// A control reading a <see cref="TouchPhase"/> value.
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/// </summary>
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/// <remarks>
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/// This is used mainly by <see cref="Touchscreen"/> to read <see cref="TouchState.phase"/>.
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/// </remarks>
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/// <seealso cref="Touchscreen"/>
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[InputControlLayout(hideInUI = true)]
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public class TouchPhaseControl : InputControl<TouchPhase>
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{
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/// <summary>
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/// Default-initialize the control.
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/// </summary>
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/// <remarks>
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/// Format of the control is <see cref="InputStateBlock.FormatInt"/>
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/// by default.
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/// </remarks>
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public TouchPhaseControl()
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{
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m_StateBlock.format = InputStateBlock.FormatInt;
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}
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/// <inheritdoc />
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public override unsafe TouchPhase ReadUnprocessedValueFromState(void* statePtr)
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{
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var intValue = stateBlock.ReadInt(statePtr);
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return (TouchPhase)intValue;
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}
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/// <inheritdoc />
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public override unsafe void WriteValueIntoState(TouchPhase value, void* statePtr)
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{
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var valuePtr = (byte*)statePtr + (int)m_StateBlock.byteOffset;
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*(TouchPhase*)valuePtr = value;
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}
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}
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}
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