122 lines
4.8 KiB
C#
122 lines
4.8 KiB
C#
#if CINEMACHINE_UNITY_INPUTSYSTEM
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using System.Linq;
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using UnityEngine;
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using UnityEngine.InputSystem;
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using UnityEngine.InputSystem.Users;
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namespace Cinemachine
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{
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/// <summary>
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/// This is an add-on to override the legacy input system and read input using the
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/// UnityEngine.Input package API. Add this behaviour to any CinemachineVirtualCamera
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/// or FreeLook that requires user input, and drag in the the desired actions.
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/// If the Input Syatem Package is not installed, then this behaviour does nothing.
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/// </summary>
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[HelpURL(Documentation.BaseURL + "manual/CinemachineAlternativeInput.html")]
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public class CinemachineInputProvider : MonoBehaviour, AxisState.IInputAxisProvider
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{
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/// <summary>
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/// Leave this at -1 for single-player games.
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/// For multi-player games, set this to be the player index, and the actions will
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/// be read from that player's controls
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/// </summary>
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[Tooltip("Leave this at -1 for single-player games. "
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+ "For multi-player games, set this to be the player index, and the actions will "
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+ "be read from that player's controls")]
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public int PlayerIndex = -1;
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/// <summary>Vector2 action for XY movement</summary>
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[Tooltip("Vector2 action for XY movement")]
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public InputActionReference XYAxis;
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/// <summary>Float action for Z movement</summary>
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[Tooltip("Float action for Z movement")]
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public InputActionReference ZAxis;
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/// <summary>
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/// Implementation of AxisState.IInputAxisProvider.GetAxisValue().
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/// Axis index ranges from 0...2 for X, Y, and Z.
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/// Reads the action associated with the axis.
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/// </summary>
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/// <param name="axis"></param>
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/// <returns>The current axis value</returns>
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public virtual float GetAxisValue(int axis)
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{
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if (enabled)
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{
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var action = ResolveForPlayer(axis, axis == 2 ? ZAxis : XYAxis);
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if (action != null)
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{
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switch (axis)
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{
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case 0: return action.ReadValue<Vector2>().x;
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case 1: return action.ReadValue<Vector2>().y;
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case 2: return action.ReadValue<float>();
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}
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}
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}
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return 0;
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}
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const int NUM_AXES = 3;
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InputAction[] m_cachedActions;
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/// <summary>
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/// In a multi-player context, actions are associated with specific players
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/// This resolves the appropriate action reference for the specified player.
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///
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/// Because the resolution involves a search, we also cache the returned
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/// action to make future resolutions faster.
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/// </summary>
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/// <param name="axis">Which input axis (0, 1, or 2)</param>
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/// <param name="actionRef">Which action reference to resolve</param>
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/// <returns>The cached action for the player specified in PlayerIndex</returns>
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protected InputAction ResolveForPlayer(int axis, InputActionReference actionRef)
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{
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if (axis < 0 || axis >= NUM_AXES)
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return null;
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if (actionRef == null || actionRef.action == null)
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return null;
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if (m_cachedActions == null || m_cachedActions.Length != NUM_AXES)
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m_cachedActions = new InputAction[NUM_AXES];
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if (m_cachedActions[axis] != null && actionRef.action.id != m_cachedActions[axis].id)
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m_cachedActions[axis] = null;
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if (m_cachedActions[axis] == null)
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{
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m_cachedActions[axis] = actionRef.action;
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if (PlayerIndex != -1)
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{
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var user = InputUser.all[PlayerIndex];
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m_cachedActions[axis] = user.actions.First(x => x.id == actionRef.action.id);
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}
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}
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// Auto-enable it if disabled
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if (m_cachedActions[axis] != null && !m_cachedActions[axis].enabled)
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m_cachedActions[axis].Enable();
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return m_cachedActions[axis];
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}
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// Clean up
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protected virtual void OnDisable()
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{
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m_cachedActions = null;
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}
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}
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}
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#else
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using UnityEngine;
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namespace Cinemachine
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{
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/// <summary>
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/// This is an add-on to override the legacy input system and read input using the
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/// UnityEngine.Input package API. Add this behaviour to any CinemachineVirtualCamera
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/// or FreeLook that requires user input, and drag in the the desired actions.
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/// If the Input Syatem Package is not installed, then this behaviour does nothing.
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/// </summary>
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[AddComponentMenu("")] // Hide in menu
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public class CinemachineInputProvider : MonoBehaviour {}
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}
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#endif
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